Masterpact NT12 H1 User Manual
November 19, 2022 | Author: Anonymous | Category: N/A
Short Description
Download Masterpact NT12 H1 User Manual...
Description
Low voltage electrical distribution
Masterpact NT Circuit breakers and switch-disconnectors IEC from 600 to 1600 A
User manual 06/2009
User manual for circuit breakers and switch-discon switch-disconnectors nectors Masterpact NT
51201116AA - 06/2009
Contents
Identifying Masterpact
2
Rating plate
2
Discovering Masterpact
4
Components
4
Using Masterpact
8
Understanding the controls and indications Charging the circuit breaker Closing the circuit breaker Opening the circuit breaker Resetting after a fault trip Locking the controls
8 10 11 12 13
Using the Masterpact drawout chassis
16
Identifying the circuit breaker positions Racking Matching a Masterpact circuit breaker with its chassis Locking the switchboard door Locking the circuit breaker in position Locking the safety shutters
16 17 20 21 22 25
Identifying the electrical auxiliaries
26
Identication of the connection terminals Operation Electrical diagrams
26 27 28
Discovering Discoverin g Masterpact’s accessories
30
Micrologic control units Indication contacts Auxiliaries for for remote operation operation Device mechanical accessories Chassis accessories
30 31 33 36 38
Inspecting and testing before use
40
Initial tests What to do when the circuit breaker trips
40 41
Maintaining Masterpact performance
42
Recommended maintenance program Maintenance operations
42 43
Ordering replacement parts Troubleshooting and solutions
44 46
Checking Masterpact operating conditions
48
Environmental conditions
48
9
1
Identifying Masterpact
3 1 3 9 1 1 B D
Rating plate
4 1 3 9 1 1 B D
Rated current (x 100 A) Performance level Suitability for isolation Type of device: circuit breaker or switch-disconnector Rated insulation level Impulse withstand voltage Icu - ultimate breaking capacity
Rated operational voltage Ics - rated service breaking capacity
Rated short-time withstand current Frequency Standards
2
51201116AA - 06/2009
51201116AA - 06/2009
3
Discovering Masterpact
Components
Masterpact circuit breakers are available in drawout and xed versions. The drawout version is mounted on a chassis and the xed version is installed using xing brackets.
Drawout version A 1 2 3 1 5 E
ET RES
Fixed version A 2 2 3 1 5 E
ET RES
4
51201116AA - 06/2009
Discovering Masterpact
Components
Chassis 5 1 3 9 1 1 B D
Auxiliary terminal shield
Carriage switch terminals ON/OFF indication contact terminals Control auxiliary terminals Arc-chute cover Terminals for control-unit and fault-trip indication contacts Carriage switch terminals Racking interlock Locking by keylocks Locking by padlocks "Connected", "test" or "disconnected" position indicator
Carrying grip
Crank socket Mismatch protection
Position release button
Crank storage
Door interlock
Disconnecting-contact cluster
Crank
Drawout grip Shutter locking blocks
Safety shutters
51201116AA - 06/2009
5
Discovering Masterpact
Components
Drawout circuit breaker / switch-disconnector 6 1 3 9 1 1 B D
XF closing release MX/1 opening release MX/2 opening release or MN undervoltage release Terminals for control unit, fault indication contacts, control auxiliaries and auxiliary contacts
SDE/1 "fault-trip" indication contact
Arc chute OF "ON/OFF" indication contacts
PF "ready to close" contact
Operating-mechanism charging handle
MCH gear motor for electrical charging of the operating mechanism
Carrying grip
Keylock for locking in open position
BPFE electrical closing pushbutton
BPFE electrical closing pushbutton
Side plate for drawout device
Padlock for locking in open position SDE/2 "fault-trip" indication contact or Res electrical remote reset
Closing pushbutton Opening pushbutton Operation counter
Control unit
6
51201116AA - 06/2009
Components
Discovering Masterpact
Fixed circuit breaker / switch-disconnector XF closing release
7 1 3 9 1 1
B D
Control auxiliary terminals Arc chute MX/1 opening release MX/2 opening release or MN undervoltage release
Auxiliary contact terminals OF "ON/OFF" indication contacts
Terminals for control unit and fault indication contacts
PF "ready to close" contact Operating-mechanism charging handle
SDE/1 "fault-trip" indication contact
MCH gear motor for electrical charging of the operating mechanism
Carrying grip
Keylock for locking in open position BPFE electrical closing pushbutton
BPFE electrical closing pushbutton Side plate for fixed device
Padlock for locking in open position Closing pushbutton
SDE/2 "fault-trip" indication contact or Res electrical remote reset
Opening pushbutton Operation counter
Control unit
Front 8 1 3 9 1 1 B D
Trip indication button used to reset before closing ET RES
Rating plate
Locking by padlock, lead-seal cover or screws for pushbuttons
Indicator for position of the main contacts
51201116AA - 06/2009
"Springs charged" and "Ready to close" indicator
7
Using Masterpact
9 1 3 9 1 1 B D
Understanding the controls and indications
Circuit breaker open and discharged A 8 8 4 1 5 E
O
I
Circuit breaker closed and discharged A 9 8 4 1 5 E
O
N h O Pus
Circuit breaker open, charged and not "ready to close"
O
N h O
F h OF Pus
F h OF Pus
A 0 9 4 1 5 E
I
Pus
I
N h O Pus
OFF Push
Circuit breaker closed and charged A 1 9 4 1 5 E
O
I
Pus
N h O
OFF Push
Circuit breaker open, charged and "ready to close" A 2 9 4 1 5 E
O
I
N h O Pus
OFF Push
8
51201116AA - 06/2009
Using Masterpact
Charging the circuit breaker
The charge status is indicated as follows.
The springs in the circuit breaker operating mechanism must be charged to store the energy required to close the main contacts. The springs may be charged manually using the charging handle or automatically by the optional MCH gear motor.
0 2 3 9 1 1 B D
O
I
Push ON
FF h O Pus
Manual charging.
Automatic charging.
Pull the handle down six times until you hear a "clack".
If the MCH gear motor is installed, the spring is automatically recharged after each closing.
7 3 3 9 1 1 B D
A 0 9 7 6 4 E
or
51201116AA - 06/2009
9
Using Masterpact
Closing the circuit breaker
Device "ready to close"
Closing conditions
A 1 9 2 1 5 E
Device not "ready to close" A 2 9 2 1 5 E
Closing (i.e. turning the circuit ON) is possible only if i f the circuit breaker is "ready to close". The prerequisites are the following: b device open (OFF) b springs charged b
no opening order present.
The circuit breaker will not close unless it is i s "ready to close" when the order is given.
Closing the circuit breaker Locally (mechanical) Press the mechanical ON pushbutton. A 7 4 0 0 6 E
A 3 9 4 1 5 E
O
I
OFF Push
Locally (electrical) BP FE
A 9 4 0 0 6 E
XF
A 4 9 2 1 5 E
Press the electrical closing pushbutton. By adding an XF closing release, the circuit breaker can be closed locally.
Remotely XF 1 2 3 9 1 1 B D
A 4 9 2 1 5 E
When connected to a remote control panel, the XF closing release can be used to close the circuit breaker remotely.
Anti-pumping function The purpose of thesimultaneous mechanical anti-pumping functionorders is to ensure thatopen a circuit breaker receiving opening and closing does not and close indenitely. If there is a continuous closing order, after opening the circuit breaker remains open until the closing order is i s discontinued. A new closing order is required to close c lose the circuit breaker. A new order is not required if the closing release rel ease is wired in series with the PF "ready to close" contact. 10
51201116AA - 06/2009
Using Masterpact
Opening the circuit breaker
Locally Press the OFF pushbutton. A 7 4 0 0 6 E
A 9 9 4 1 5
I
E
N ON O Push
Push
1 2 3 9 1 1 B D
Remotely Use one of the following solutions: b one or two MX opening releases (MX1 and MX2) b one MN undervoltage release b one MN undervoltage release with a delay unit. When connected to a remote control panel, these releases can be used to open the circuit breaker remotely remotely.. MX1, MX2, MN A 4 9 2 1 5 E
Delay unit A 6 9 2 1 5 E 5 6 3 4 1 2
S 3 6 MN UVR 30 V 100 / 1C AC / D
0.5
1
.5 3 1 N r de M dateu r UVR Retaerdelay fo Tim 1012
3 1 2
51201116AA - 06/2009
11
Using Masterpact
Resetting after a fault trip
The circuit breaker signals a fault trip by: b a mechanical indicator on the front b one or two SDE "fault-trip" indication contacts (SDE/2 is optional). Locally If the circuit breaker is not equipped with the automatic reset option, reset it A 7 4 0 0 6 E
manually. 2 2 3 9 1 1 B D
ET RES
1 2 3 9 1
Remotely
1 B D
Use the Res electrical remote reset option (not compatible with an SDE/2). A 0 5 0 0 6 E
12
51201116AA - 06/2009
Locking the controls
Using Masterpact
Disabling circuit-breaker local closing and opening
Pushbutton locking using a padlock (shackle diameter 5 to 8 mm), a lead seal or screws. Padlock.
Lead seal.
4 2 3 9 1 1 B D
3 2 3 9 1 1 B D
Locking Close the covers.
I
O
5 2 3 9 1 1 B D
ON push
d arge dis ch
O OFF
O
I
Push OFF
N Push Pu sh O ON
Unlocking Remove the padlock, lead seal or screws.
8 2 3 9 1 1 B D
51201116AA - 06/2009
6 2 3 9 1 1 B D
Insert the padlock shackle, lead seal or screws.
OFF push
7 2 3 9 1 1 B D
Screws.
8 3 2 3 9 1 1 B D
Lift the covers and swing them down. 9 2 3 9 1 1 B D
The pushbuttons are no longer locked.
0 3 3 9 1 1 B D
O
I
Push Pus h OFF
Push ON
13
Locking the controls
Using Masterpact
Disabling local and remote closing
Combination of locking systems To disable local and remote circuit-breaker closing, use as needed one to three padlocks or a keylock.
Install one to three padlocks (maximum shackle diameter 5 to 8 mm) Locking Open the circuit breaker.
Pull out the tab.
A 9 9 4 1 5
I
E
N ON O Push
1 3 3 9 1 1 B D
Insert the padlock shackle. 2 3 3 9 1 1 B D
h Pus
Check The closing control is inoperative. 3 3 3 9 1 1 B D
Unlocking Remove the padlock. 4 3 3 9 1 1
B D
14
51201116AA - 06/2009
Locking the controls
Using Masterpact
Disabling local and remote closing
Locking the controls with a keylock Locking Open the circuit breaker. A 9 9 4 1 5
I
E
Turn the key. A 8 4 4 1 5
Remove the key. A 9 4 4 1 5 E
E
ON N Push O
h Pus
Check The closing control is inoperative. A 6 4 4 1 5 E
Unlocking Insert the key. k ey. A 8 0 0 0 6 E
Turn the key. A 9 0 0 0 6 E
The key cannot be removed. A 0 1 0 0 6 E
Three types of keylocks are available RONIS
A 0 7 2 1 5 E
51201116AA - 06/2009
PROFALUX 9 7 4 8 1 1 B D
CASTELL A 1 7 2 1 5 E
15
Identifying the circuit breaker positions
Using the Masterpact drawout chassis
The indicator on the front signals the position of the circuit breaker in the chassis. 1 4 3 9 1 1 B D
b
"connected" position 2 4 3 9 1 1 B D
A 3 5 4 1 5 E
Test
b
"test" position 3 4 3 9 1 1 B D
A 4 5 4 1 5 E
Test
10.9 mm
b
"disconnected" position 4 4 3 9 1 1 B D
A 5 5 4 1 5 E
Test
32.2 mm
16
51201116AA 06/2009
Using the Masterpact drawout chassis
Racking
These operations require that all chassis-locking functions be disabled (see page 22).
Prerequisites To connect and disconnect Masterpact, the crank must be used. The locking systems, padlocks and the racking interlock all inhibit use of the crank.
Withdrawing the circuit breaker from the "connected" to "test" position, then to "disconnected" position The circuit breaker is in "connected" position. 7 1 7 9 1 1
B D
The circuit breaker is in "test" position. Remove the crank or continue to "disconnected" position. The circuit breaker is in "test" position.
The circuit breaker is in "disconnected" position.
17
51201116AA 06/2009
Using the Masterpact drawout chassis
Racking
For complete information on Masterpact handling and mounting, see the installation manual(s).
Removing the rails
Before mounting the circuit breaker, make sure it matches the chassis.
Press the release tabs and pull the rails out.
Press the release tabs to push the rails in.
6 4 3 9 1 1 B D
1
7 4 3 9 1 1 B D
2
3
Inserting Masterpact Position the circuit breaker on the rails. Check that it rests on all four supports.
Open the circuit breaker (in any case, it opens automatically during connection).
8 4 3 9 1 1 B D
A 9 9 4 1 5 E
I N ON O Push
h Pus
If you cannot insert the circuit breaker in the chassis, check that the mismatch protection on the chassis corresponds to that on the cir cuit breaker.
Push the circuit breaker into the chassis, taking care not to push on the control unit. 9 4 3 9 1 1 B D
0 5 3 9 1 1 B D
I
O
ON push
OFF push
ed har g disc
O OFF
I
O
h ON pus
OFF push
ed har g di sc
O OFF
1 5 3 9 1 1 B D
I
O
ON push
OFF push
ch ar ged isc dis
O
18
OFF
51201116AA 06/2009
Racking
Using the Masterpact drawout chassis
Racking the circuit breaker from the "disconnected" to "test" position, then to "connected" position The device is in "disconnected" position. 8 1 7 9 1 B D
The device is in "test" position.
The device is in "test" position. Remove the crank or continue to "connected" position.
The device is in "connected" position.
19
51201116AA - 06/2009
Using the Masterpact drawout chassis
Matching a Masterpact circuit breaker with its chassis
To set up a mismatch-prevention combination for the circuit breaker and the chassis, see the mismatchprevention installation manual.
The mismatch protection ensures that a circuit breaker is installed only in a chassis with compatible characteristics. The possible combinations are listed below. 3 5 3 9 1 1 B D
A
1
B
2
C
3 4
5
D E
20
ABC
45
BCD
15
ABD
35
BCE
14
ABE
34
BC
145
AB
345
BDE
13
ACD
25
BD
135
ACE
24
BE
134
AC
245
CDE
12
ADE
23
CD
125
AD
235
CE
124
AE
234
DE
123
51201116AA - 06/2009
Locking the switchboard door
Using the Masterpact drawout chassis
The locking device is installed on the left or right-hand side of the chassis. b When the circuit breaker is in "connected" or "test" position, the latch is lowered and the door is locked b When the circuit breaker is in "disconnected" position, the latch is raised and the door is unlocked. 4 5 3 9 1 1
B D
O
OF F pu sh
O OFF
I
O
ON push
FF push O
ged char isc dis
O OFF
Disabling door opening Close the door.
A 5 6 4 1 5 E
Put the Masterpact in "test" or "connected" position.
6 5 3 9 1 1 B D
5 5 3 9 1 1 B D
Enabling door opening Put the Masterpact in "disconnected" position. 7 5 3 9 1 1 B D
The door is locked.
The door is unlocked. A 9 6 4 1 5 E
I
push ON
O
FF OF push O
rged discha F O O FF F
21
51201116AA - 06/2009
Using the Masterpact drawout chassis
Locking the circuit breaker in position
Padlocks and keylocks may be used together.
Combination of locking systems To disable connection of the circuit ci rcuit breaker in "disconnected" position in the chassis, use as needed: b one to three padlocks b one or two keylocks b a combination of the two locking systems.
If specied when ordering the chassis, this locking function may be adapted to operate in all positions ("connected", "test" and "disconnected"), instead of in "disconnected" position alone.
Disabling connection when the circuit breaker is in "disconnected" position, using one to three padlocks (maximum shackle diameter 5 to 8 mm) Locking Circuit breaker in "disconnected" position. 8 5 3 9 1 1 B D
Pull out the tab. 9 5 3 9 1 1 B D
1
2
Test
Insert the shackle (max. diameter 5 to 8 mm) of the padlock(s). 0 6 3 9 1 1 B D
The crank cannot be inserted.
3
Unlocking Remove the padlock(s). 2 6 3 9 1 1 B D
1
The crank can be inserted. 4 6 3 9 1 1 B D
3
1 6 3 9 1 1 B D
4
Release the tab.
3 6 3 9 1 1 B D
2
22
51201116AA - 06/2009
Using the Masterpact drawout chassis
Locking the circuit breaker in position
Padlocks and keylocks may be used together.
Disabling connection when the circuit breaker is in "disconnected" position, using one or two keylocks. Locking Circuit breaker in "disconnected" position. 5 6 3 9 1 1 B D
Turn the key(s).
1
6 6 3 9 1 1 B D
2
2
Test
Remove the key(s) s).. 7 6 3 9 1 1 B D
3
3
The cr cra ank cannot be inserted. 8 6 3 9 1 1 B D
4
4
Unlocking Insert the key(s). 9 6 3 9 1 1 B D
1
Turn the key(s). 0 7 3 9 1 1
2
B D
The crank can be inserted. 1 7 3 9 1 1 B D
3
Three types of keylocks are available RONIS
A 0 7 2 1 5 E
PROFALUX
9 4 7 8 1 1
B D
CASTELL
A 1 7 2 1 5 E
23
51201116AA - 06/2009
Using the Masterpact drawout chassis
Locking the circuit breaker in position
Locking the circuit breaker when the door is open 2 7 3 9 1 1
B D
I
O
ON p ush
F FF OF O push
ar ged di sch
O OFF
When the door is open, the crank c rank cannot be inserted. 3 7 3 9 1 1 B D
When the door is closed, the crank can be inserted. 4 7 3 9 1 1 B D
I
O
N p u sh sh O
h OFF pu s
rge ed h arg dis c FF O O FF
24
51201116AA - 06/2009
Using the Masterpact drawout chassis
Locking the safety shutters Padlocking inside the chassis
Four locking possibilities: using one or two padlocks (maximum shackle diameter 5 to 8 mm) for each shutter Top and bottom shutters not locked.
Top shutter not locked. Bottom shutter locked.
5 7 3 9 1 1 B D
Top shutter locked. Bottom shutter not locked. 6 7 3 9 1 1 B D
Top and bottom shutters locked.
25
51201116AA - 06/2009
Identification of the connection terminals
Identifying the electrical auxiliaries
Layout of terminal blocks 7 7 3 9 1 1
B D
CD2
CD1
824
814
822
812
821
811
XF
PF
MCH
E5 E6 Z5 M1 M2 M3 F2
Com
UC1
UC2 UC
UC3 M2C/UC4 SDE2/Res SDE1 MN/MX2 MX1 UC 484/V3
184/K2
84
D2/C12
C2
A2
254
B2
E3 E4 Z3 Z4 T3 T4
474/V2
182
82
C13
C3
A3
252
B3
181/K1
81
D1/C11
C1
A1
251
B1
E1 E2 Z1 Z2 T1 T2
VN F1
OF4
OF3
44
34
24
14
42
32
22
12
41
31
21
11
CE3
CE2
CE1 CE 1 CT CT1 1
334
324
314
914
332
322
3 12 12
9 12 12
331
321
311
911
Com
UC1
471/V1
OF2 OF 2 OF OF1 1
UC2 UC
UC3 M2C/UC4 SDE2/Res SDE1 MN/MX2 MX1 UC
E5 E6 Z5 M1 M2 M3 F2
XF
PF
MCH
484/V3
184/K2
84
D2/C12
C2
A2
254
B2
82
C13
C3
A3
252
B3
81
D1/C11
C1
A1
251
B1
E3 E4 Z3 Z4 T3 T4
VN
474/V2
182
E1 E2 Z1 Z2 T1 T2
F1
471/V1
181/K1
OF4
OF3
44
34
OF2 OF 2 OF OF1 1 24
14
42
32
22
12
41
31
21
11
26
51201116AA - 06/2009
Identifying the electrical auxiliaries
Operation
The ON/OFF indication contacts signal the status of the device main contacts.
Circuit breaker
8 7 3 9 1 1 B D
completely closed
closed
completely open
main contacts
open
open
closed
closed
open
OF: ON/OFF (closed/open) indication changeover contacts
The carriage switches indicate the "connected", "test"
Chassis
and "disconnected" positions.
For information on the separation distance of the main circuits in the "test" and "disconnected" positions, see page 16.
9 7 3 9 1 1
completely connected
B D
separation of the main circuits test position separation of the auxiliary circuits completely disconnected
open CE: connected-position carriage switch
closed open
closed
open CT: test-position carriage
closed
open
closed
switch
open closed
CD: disconnected-position carriage switch
27
51201116AA - 06/2009
Electrical diagrams
Identifying the electrical auxiliaries
Fixed and drawout devices
The diagram is shown with circuits de-energised, all devices open, connected and charged and relays in normal position. Power A 2 6 0 0 6 E
Control unit
Power N
L1
L2
upstre ups tream am cb
Remote operation downstrea downst ream m cb
t l u a f
1 2 3 4 5 1 2 3 4 5 Z Z Z Z Z Z Z Z Z Z
L3
t o y d e a s o l e r c
t l u a f AT
d e g r a h c
BPF
M6C BPO 4 4 1 2 3 7 8 4 4 Q Q Q
N 1 2 3 1 2 3 4 5 V V V V Z Z Z Z Z
2 8 1
4 8 1
2 2 4 K 8 8
2 1 C
2 D
2 3 C C
2 4 2 3 5 5 3 2 A A 2 2 B B
MCH Q
MN
S1 S2
SDE2
MX2
MX1
XF PF
SDE1
CH
I
Micrologic
Res
U
M2C
M6C or
A 3 6 0 0 6 E
Control unit Com
UC1
A 4 6 0 0 6 E
1 7 4
1 2 3 1 2 3 4 + M M M T T T T 1 2 F F 1 2 G G 1 2 S S X X 24 V DC
or
or A 5 6 0 0 6 E
1 8 1
1 K
1 8
A 6 3 1 6 4 E
1 D
1 1 C
A 6 6 0 0 6 E
A 7 3 1 6 4 E
1 C
A 7 6 0 0 6 E
1 5 2
1 A
1 B
Remote operation UC2
UC3
UC4 / M2C / M6C
SDE2 / Res
SDE1 SDE1
MN / MX2
MX1
XF
PF
MCH
C2
A2
254
B2
C3
A3
252
B3
C1
A1
251
B1
E5 E6 Z5 M1 M2 M3
F2+
V3
VN
V2
/
F1 –
V1
/
/
Q3
474
E1 E2 Z1 Z2 T1 T2
b
484
E3 E4 Z3 Z4 T3 T4
A
/
/
Q2
471
/
184
/
K2
84
D2
/
C12
182
82
Q1
181
/
K1
81
P
H
Control unit
Remote operation
b
b
Com : E1-E6 communication Com
SDE2 :
D1
/
C11
Fault-trip indication contact
or b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
UC1: UC1:
Z1-Z5 zone selective interlocking; Z1 = ZSI OUT SOURCE Z2 = ZSI OUT OUT;; Z3 = ZSI IN SOURCE Z4 = ZSI IN ST (short time) Z5 = ZSI IN GF (earth fault) M1 = Vigi module input (Micrologic 7)
UC2: T1, T2, T3, T4 = external neutral; UC2: M2, M3 = Vigi module input (Micrologic 7) UC3:: F2+, F1– external 24 V DC power UC3 supply VN external voltage connector UC4:: V1, V2, V3 optional external voltage UC4 voltage connector or programmable contacts contacts (internal M2C: 2 programmable M2C: relay); ext. 24 V DC power supply or required M6C:: 6 programmable M6C programmable contacts contacts (external relay); ext. 24 V DC power supply required.
A: Digital ammeter P : A + power meter + programmable protection H : P + harmonics
Res:: Res
Remote reset
SDE1 :
Fault-trip indication contact (supplied as standard)
MN: Undervoltage release MN: or MX2:: Shunt release MX2 MX1:: Shunt release (standard or communicating) MX1
XF:: XF
Closing release (standard or communicating)
PF:: PF
"Ready to close" contact
MCH : Gear motor (*)
Note:
When communicating MX or XF releases are used, the third wire (C3, A3) must be connected even if the communications module is not installed.
28
51201116AA - 06/2009
Identifying the electrical auxiliaries
Electrical diagrams Fixed and drawout devices
Indication contacts
open
Chassis contacts
closed
disconnected
2 4 2 4 2 2 1 1 8 8 8 8
2 4 2 4 2 4 2 4 4 4 3 3 2 2 1 1
OF4
OF3
OF2
1 4
E
1 3
OF3
2 4 2 4 2 4 3 3 2 2 1 1 3 3 3 3 3 3
4 2 1 1 9 9
CT1
1 2
A 9 6 0 0 6
1 1
OF2
CD1
1 2 8
E
Indication contacts
OF4
test
OF1 CD2
A 8 6 0 0 6
connected
CE3
A 0 7 0 0 6 E
1 1 8
Contacts châssis
OF1
CE2
1 3 3
CE1
1 2 3
A 6 7 0 0 6 E
1 1 3
1 1 9
CD2
CD1
CE3
C E2
CE1
CT1
824
814
334
32 4
314
914
822
812
332
32 2
312
912
821
811
331
32 1
311
911
44
34
24
14
42
32
22
12
41
31
21
11
Indication contacts
Chassis contacts
OF4 / OF3 / OF2 / OF1: OF1: ON/OFF indication contacts
CD2-CD1 CD1:: Disconnectedposition
CE3-CE2-CE1:
Connectedposition
CT1: CT1: Test-position contacts
(*) 440/480 V AC gear motor for charging (380 V motor + additional resistor) CN1
- 440/480 V
9 440/480 V "charged LED"
11
R
B3 B2
MCH 380V
CH
A 5 7 0 0 6 E
CN2
B1
Key:
- 440/480 V
Drawout device only
SDE1, OF1, OF2, OF3, OF4 supplied as standard XXX
Interconnected connections Interconnected (only one wire per connection point)
29
51201116AA - 06/2009
Discovering Masterpact’s accessories
Micrologic control units
For more in-depth information, see the control-unit user manual.
Micrologic control units Standard equipment, one per device b Part numbers (long-time rating plug and connectors not included, see below): Micrologic 2.0 Micrologic 5.0 Micrologic 2.0 A Micrologic 5.0 A Micrologic 6.0 A Micrologic 7.0 A Micrologic 5.0 P Micrologic 6.0 P Micrologic 7.0 P Micrologic 5.0 H Micrologic 6.0 H Micrologic 7.0 H b Part numbers for connectors for A, P, H: v for xed device v for drawout device. b
A 8 0 1 6 4 E
A 9 2 3 1 5 E
lo Micro
Ir
0 gic 7
Ig Isd I ∆n I i
eset Ap r
Depending on the model, control units offer in addition: v fault indications v measurement of electrical parameters (current, voltage, power, etc.) v harmonic analysis v communication. b
Long-time rating plugs Standard equipment, one per control unit b Part numbers for setting options: v standard 0.4 to 1 x Ir setting v low 0.4 to 0.8 x Ir setting v high 0.8 to 1 x Ir setting v off (no long-time protection). b
The plugs determine the setting range for the long-time protection. b
M2C and M6C programmable contacts Optional equipment, used with Micrologic P and H control units b Part numbers (connectors not included, see below): v 2 M2C contacts v 6 M6C contacts b Part numbers for connectors: v for xed device v for drawout device. b
Contacts can be programmed using the keypad on the control unit or via the COM option b They indicate: v the type of fault v instantaneous or delayed threshold overruns. b
M2C: 2 contacts (5 A - 240 V) b M6C: 6 contacts (5 A - 240 V). b Permissible load on each of the M6C relay outputs at cos ϕ = 0.7 v 240 V AC: 5 A v 380 V AC: 3 A v 24 V DC: 1.8 A v 48 V DC: 1.5 A v 125 V DC: 0.4 A v 250 V DC: 0.15 A b M2C: 24 V DC ± 5 % power from control unit b M6C: 24 V DC ±5 % external supply b Maximum consumption: 100 mA. b
30
51201116AA - 06/2009
Discovering Masterpact’s accessories
Indication contacts
ON/OFF indication contacts (OF) Standard equipment, 4 OF per device b Part numbers: b
v
standard
low level Part numbers for connectors: v for xed device v for drawout device. v
b
OF contacts indicate the position of the main contacts b They trip when the minimum isolation distance between the main contacts is reached. b
4 changeover contacts b Breaking capacity at cos ϕ = 0.3 (AC12 / DC12 as per 947-5-1) v standard, minimum b
current 10 mA / 24 V V AC AC 24 240/ 0/38 380 0 6 A (r (rm ms) 480 6 A (rms) 690 6 A (rms) V DC 24/48 2 .5 125 0.5 250 0.3 v low level, minimum current 1 mA / 4 V V AC 24/48 240 380 V DC 24/48 125 250
5 A (rms) 5 A (rms) 5 A (rms) 5 / 2.5 A 0.5 A 0.3 A
"Fault-trip" indication contact (SDE/1) Standard equipment on circuit breakers, one SDE/1 contact per device b Not available for switch-disconnector versions. b
The contact provides a remote indication of device opening due to an electrical fault. b
Changeover contact Breaking capacity at cos ϕ = 0.3 (AC12 / DC12 as per 947-5-1) v standard, minimum current 10 mA / 24 V b b
V AC 240/ 240/38 380 0 5 A (r (rms ms)) 480 5 A (rms) 690 3 A (rms) V DC DC 24 24/4 /48 8 3A 125 0.3 A 250 0.15 A v low level, minimum current 1 mA / 4 V V AC 24/48 240 380 V DC DC 24 24/4 /48 8 125 250
A 4 5 0 0 6 E
3 A (rms) 3 A (rms) 3 A (rms) 3A
0.3 A 0.15 A
Additional "fault-trip" indication contact (SDE/2) Optional equipment for circuit breakers, one additional SDE/2 contact per device b Not available for switch-disconnector versions b Not compatible with the Res option b Part numbers (connectors not included, see below): b
v
standard
low level b Part numbers for connectors: v for xed device v for drawout device. v
The contact remotely indicates device opening due to an electrical fault. b
Changeover contact Breaking capacity at cos ϕ = 0.3 (AC12 / DC12 as per 947-5-1) v standard, minimum current 10 mA / 24 V b b
V AC AC 240/ 240/38 380 0 5 A (r (rm ms) 480 5 A (rms) 690 3 A (rms) V DC DC 24 24/4 /48 8 3A 125 0.3 A 250 0.15 A v low level, minimum current 1 mA / 4 V V AC 24/48
3 A (rms)
2 34 80 0 V DC DC 24 24/4 /48 8
3 3A A ((rrm ms s))
125 250
3A
0.3 A 0.15 A
31
51201116AA - 06/2009
Discovering Masterpact’s accessories
A 0 5 0 0 6 E
Indication contacts
Electrical reset after fault trip (Res) Optional equipment, one Res per device b Not compatible with the SDE/2 option b Part numbers (connectors not included, see below): v 110/130 V AC v 220/240 V AC b Part numbers for connectors: v for xed device v for drawout device. b
The contact remotely resets the device following tripping due to an electrical fault. b
"Springs charged" limit switch contact (CH) Equipment included with MCH gear motor, one CH contact per device. b
The contact indicates the "charged" status of the operating mechanism (springs charged). b
Changeover contact Breaking capacity 50/60 Hz for AC power (AC12 / DC12 as per 947-5-1): b b
V AC 240 380
10A(rms) 6 A (rms)
480
6 A (rms) 3 A (rms)
690
V DC DC 24 24/4 /48 8 125 250
A 2 3 3 1 5 E
3A
0.5 A 0.25 A
"Ready to close" contact (PF) Optional equipment, one PF contact per device b Part numbers (connectors not included, see below): b
v
standard
low level b Part numbers for connectors: v for xed device v for drawout device. v
The contact indicates that the device may be closed because all the following are valid: v circuit breaker is open v spring mechanism is charged v a maintained closing order is not present v a maintained opening order is not present. b
Changeover contact Breaking capacity at cos ϕ = 0.3 (AC12 / DC12 as per 947-5-1) v standard, minimum current 10 mA / 24 V b b
V AC 240/ 240/38 380 0 5 A (r (rms ms)) 480 5 A (rms) 690 3 A (rms) V DC DC 24 24/4 /48 8 3A 125 0.3 A 250 0.15 A low level, minimum current 1 mA / 4 V V AC 24/48 240 380 V DC DC 24 24/4 /48 8 125 250
3 A (rms) 3 A (rms) 3 A (rms) 3A
0.3 A 0.15 A
32
51201116AA - 06/2009
Discovering Masterpact’s accessories
A 0 9 7 6 4 E
Auxiliaries for remote operation
Gear motor (MCH) Optional equipment, one MCH gear motor per device b Part numbers (connectors not included, b
The gear motor automatically charges the spring mechanism. b
v
100/125 - 200/250
see below): v AC 50 / 60 Hz: 48/60
Operating threshold: 0.85 to 1.1 Un b Consumption: 180 VA or W b Inrush current: 2 to 3 In for 0.1 second b Charging time: 3 seconds max. b Operating rate: maximum 3 cycles per minute b CH contact: see page 32. b
100/130
200/240 277/415 440/480 v
Power supply: V AC 50/60 Hz: 48/60 100/130 - 200/240 - 277 400/440 - 480 v V DC: 24/30 - 48/60 b
DC
24/30 48/60 100/125 200/250
Part numbers for connectors: v for xed device v for drawout device. b
A 4 9 2 1 5 E
Opening releases MX/1 and MX/2, closing release XF The MX release Power supply: Optional equipment, 1 or 2 MX releases per device, 1 XF per device b The function (MX or XF) is determined by where the coil is installed b Part numbers (connectors not included, see below) V AC 50/60 Hz, V DC: v standard version: b
b
b
instantaneously opens the circuit breaker when energised b The XF release instantaneously closes the circuit breaker when energised, if the device is "ready to close".
v
V AC 50 / 60 Hz: 24 48 - 100/130 - 200/250 240/277 - 380/480 500/550
V DC: 12 - 24/30 48/60 - 100/130 v
200/250
240/277 AC 380/480 AC
Operating threshold: XF: 0.85 to 1.1 Un v MX: 0.7 to 1.1 Un b Consumption: v pick-up: 200 VA or W (80 ms) v hold: 4.5 VA or W b Circuit-breaker response time at Un: v XF: 55 ms ± 10
500/550 AC
v
12 DC
24/30 AC/DC 48/60 AC/DC 100/130 AC/DC 200/250 AC/DC
communicating version (with COM option): v
12 DC
24/30 AC/DC 48/60 AC/DC 100/130 AC/DC 200/250 AC/DC
240/277 AC 380/480 AC b Part numbers for connectors: v for xed device v for drawout device.
b v
MX: 50 ms ± 10.
33
51201116AA - 06/2009
Discovering Masterpact’s accessories
A 4 9 2 1 5 E
Auxiliaries for remote operation
Instantaneous undervoltage releases (MN) Optional equipment, 1 MN per device b Not compatible with the MX/2 opening release b Part numbers (connectors not included, see below) V AC 50/60 Hz, V DC: 24/30 AC/DC 48/60 AC/DC b
The MN release instantaneously opens the circuit breaker when its supply voltage drops. b
Power supply: V AC 50/60 Hz: 24/48
100/130 - 200/250
240/277 - 380/480 v
V DC: 24/30 - 48/60
100/130 - 200/250
Operating threshold: opening: 0.35 to 0.7 Un v closing: 0.85 Un b Consumption: v pick-up: 200 VA or W (80 ms) 4. 5 VA or W v hold: 4.5 b Circuit-breaker response time at Un: 40 ms ± 10. b v
200/250 AC/DC
380/480 AC 500/550 AC
Part numbers for connectors: v for xed device v for drawout device. b
Delay unit for MN releases 5 6 3 4 1 2
S
30 V 100 / 1C AC / D
0.5
1
.5 3 1 N r de M dateu r UVR Retaerdelay fo Tim
MN UVR
3 1 2
Optional equipment, 1 MN with delay unit per device b Delay-unit part numbers V AC 50/60 Hz, V DC: v non adjustable: b
3 6
1012
100/130 AC/DC 200/250 AC/DC
adjustable: 48/60 AC/DC v
The unit delays operation of the MN release to eliminate circuit-breaker nuisance tripping during short voltage dips b The unit is wired in series with the MN and must be installed outside the circuit breaker. b
100/130 AC/DC 200/250 AC/DC
380/480 AC/DC.
A 4 4 3 0 6 E
v
500/550
100/130 AC/DC
A 6 9 2 1 5 E
b
Power supply V AC 50/60 Hz, V DC: v non adjustable: b
100/130 - 200/250
adjustable: 48/60 - 100/130 200/250 - 380/480 b Operating threshold: v opening: 0.35 to 0.7 Un v closing: 0.85 Un b Consumption: v pick-up: 200 VA or W (80 ms) v hold: 4.5 VA or W b Circuit-breaker response time at Un: v non adjustable: 0.25 second v adjustable: 0.5 - 0.9 1.5 - 3 seconds. v
Electrical closing pushbutton (BPFE) Optional equipment, 1 BPFE per device b Part number. b
Located on the padlock or keylock locking system, this pushbutton carries out electrical closing of the circuit breaker via the XF release, taking into account all the safety functions that are part of the control/monitoring system of the installation b It connects to the input of the COM option. b
34
51201116AA - 06/2009
Discovering Masterpact’s accessories
Auxiliaries for remote operation
Wiring of control auxiliaries Under pick-up conditions, the level of consumption is approximately 150 to 200 VA. Consequently,, for low supply voltages (12, 24, 48 V), cables Consequently c ables must not exceed a maximum length determined by the supply voltage and the cross-section of the cables. Indicative values for maximum cable lengths (in meters)
12 V
24 V 2
2
1.5 mm
2
2.5 mm2 1.5 mm2
2.5 mm
1.5 mm
100 % source voltage
—
—
58
36
280
165
85 % source voltage
—
—
16
10
75
45
MX-XF 100 % source voltage
21
12
115
70
550
330
85 % source voltage
10
6
75
44
350
210
MN
2.5 mm
48 V 2
Note: The indicated length is that for each of the two supply wires. Note:
35
51201116AA - 06/2009
Discovering Masterpact’s accessories
A 1 4 3 7 4
Device mechanical accessories
Operation counter (CDM)
E
Optional equipment, one CDM per device b Part number: 33895. b
The operation counter sums the number of operating cycles. b
9 0039
A 9 9 4 0 6 E
Escutcheon (CDP) Optional equipment, one CDP per device b Part numbers: v for xed device: 33718 v for drawout device: 33857. b
A 7 9 4 0 6 E
Transparent cover (CCP) b
Optional equipment, one CCP per device equipped with a CDP b Part number: 38859 (for drawout devices).
A 8 9 4 0 6 E
The CDP increases the degree of protection to IP 40 and IK 07 (xed and drawout devices). b
b
with a CDP, theMounted CCP increases the degree of protection to IP 54 and IK 10 (xed and drawout devices).
Blanking plate (OP) Optional equipment, one OP per device b Part number: 38858. b
Used with the escutcheon, this option closes off the door cut-out of a cubicle not yet equipped with a device. It may be used with the escutcheon for both xed and drawout devices. b
36
51201116AA - 06/2009
Discovering Masterpact’s accessories
A 7 4 3 0 6 E
Device mechanical accessories
Transparent cover for pushbutton locking using a Transparent padlock, lead seal or screws Optional equipment, one locking cover per device b
b
A 6 4 3 0 6 E
Part number.
Optional equipment, one locking system per device b Part number.
A 6 8 2 1 5 E
Optional equipment: one locking kit (without keylock) per device b Part numbers: v for Profalux keylocks v for Ronis keylocks v for Castell keylocks v for Kirk keylocks. b Optional equipment, one locking system per device.
0 8 1 9 1 1
B D
The kit inhibits local or remote closing of the device b Mounted on the chassis and accessible with the door closed, this system locks the circuit breaker in "disconnected" position using one or two keylocks. b
Keylocks required for the device OFF position One or two keylocks per locking kit b
Part numbers: Ronis: 1 keylock v Profalux: 1 keylock. b v
Profalux
The unit inhibits local or remote closing of the device b Up to three padlocks may be used for locking. b
Device OFF position locking kit for keylocks b
Ronis
pushbuttons to open and close theused device b Locking requires a padlock, a lead seal or two screws.
Device locking in the OFF position using a padlock b
A 8 4 3 0 6 E
The transparent cover blocks access (together or separately) to the b
37
51201116AA - 06/2009
Discovering Masterpact’s accessories
Chassis accessories
Top shutter closed
Safety shutters
A 0 3 0 0 6 E
Bottom shutter closed A 1 3 0 0 6 E
Optional equipment Part numbers (set of shutters for top and bottom) drawout, front/rear connection: v 3 poles v 4 poles. b b
Mounted on the chassis, the safety shutters automatically block access to the disconnecting contact cluster when the device is in the "disconnected" or "test" positions. b
IP 20 for chassis connections b IP 40 for the disconnecting contact cluster. b
If specied when ordering the chassis, this locking function may be adapted to operate in all positions ("connected", "test" and "disconnected"), instead of in "disconnected" position alone.
Circuit breaker locking in "disconnected" position
Ronis
Keylocks required with the "disconnected" position locking system
A 6 8 2 1 5 E
A 3 7 2 1 5 E
Profalux 0 8 1 9 1 1 B D
1 9 1 9 1 1 B D
Optional equipment, one locking system per device b Part numbers (keylocks not included): v for Profalux keylocks v for Ronis keylocks v for Castell keylocks v for Kirk keylocks. b
One or two keylocks per locking system b Part numbers: v Ronis: 1 keylock 1 keylock + one identical keylock 2 different key locks v Profalux: 1 keylock 1 keylock + one identical keylock 2 different key locks. b
Mounted on the chassis and accessible with the door closed, this system locks the circuit breaker in "disconnected" position using one or two keylocks. b
38
51201116AA - 06/2009
Discovering Masterpact’s accessories
A 1 1 0 0 6 E
Chassis accessories
Door interlock Optional equipment, one door interlock per chassis b Part number. b
O
OF push
F
It may be mounted on the left or right-hand side of the chassis.
b
This device inhibits opening of the cubicle door when the circuit breaker is in "connected" or "test" position.
b
This device prevents insertion of the racking handle when the cubicle door is open.
b
O OFF
A 8 9 4 1 5 E
Racking interlock Optional equipment, one racking interlock per chassis b Part number. b
b
It is mounted on the right-hand side of the chassis.
A 0 9 1 9 5
E
Mismatch protection Optional equipment, one mismatch protection device per chassis b Part number. b
A 5 4 3 0 6 E
Auxiliary terminal shield (CB) Optional equipment, one CB shield per chassis b Part numbers: 3 poles 4 poles. b
A 5 9 0 6 4 E
Mismatch protection offers twenty different combinations that the user may select to ensure that only a compatible circuit breaker is mounted on a given chassis. b
The shield prevents access to the terminal block of the electrical auxiliaries. b
"Connected", "disconnected" and "test" position carriage switches (CE, CD, CT) Optional equipment, one to six carriage switches b Standard conguration, 0 to 3 CE, 0 to 2 CD, 0 to 1 CT b Part numbers: b
v
standard
v
low level.
The carriage switches indicate the three positions: CE: connected position CD: disconnected position (when the minimum isolation distance between the main contacts and the auxiliary contacts is reached) CT: test position. b
Changeover contact Breaking capacity at cos ϕ = 0.3 (AC12 / DC12 as per 947-5-1) v standard, minimum current 10 mA / 24 V b b
V AC 240 380 480
8 A (rms) 8 A (rms) 8 A (rms) 690 6 A (rms) V DC 24/48 2 .5 A 125 0.8 A 250 0.3 A v low level, minimum current 1 mA / 4 V V AC 24/48 5 A (rms) 240 5 A (rms) 380 5 A (rms) V DC 24/48 2 .5 A 125 0.8 A 250 0.3 A
39
51201116AA - 06/2009
Inspecting and testing before use
Initial tests
These operations must be carried out in particular before using a Masterpact device for the rst time.
A general check of the circuit breaker takes only a few minutes and avoids any risk of mistakes due to errors or negligence. A general check must be carried out: b prior to initial use b following an extended period during which the circuit breaker is not used. A check must be carried out with the entire switchboard de-energised.
Procedure
In only those compartments that may be accessed byswitchboards the operatorswith mustcompartments, be de-energised.
Electrical tests Insulation and dielectric-withstand tests must be carried out immediately after delivery of the switchboard. These tests are precisely dened by international standards and must be directed and carried out by a qualied expert. Prior to running the tests, it is absolutely necessary to: b disconnect all the electrical auxiliaries of the cir cuit breaker (MCH, MX, XF, MN, Res electrical remote reset) b remove the long-time rating plug on the 7.0 A, 5.0 P, 6.0 P, 7.0 P, 5.0 H, 6.0 H, 7.0 H control units. Removal of the rating plug disconnects the voltage v oltage measurement input.
Switchboard inspection Check that the circuit breakers are installed in a clean environment, free of any installation scrap or items (tools, electrical wires, broken parts or shreds, metal objects, etc.).
Conformity with the installation diagram Check that the devices conform with the installation diagram: b breaking capacities indicated on the rating plates b identication of the control unit (type, rating) b presence of any optional functions (r emote ON/OFF with motor mechanism, auxiliaries, measurement and indication modules, etc.) b protection settings (long time, short time, ti me, instantaneous, earth fault) identication of the protected circuit marked on the front of each circuit ci rcuit breaker. b
Condition of connections and auxiliaries Check device mounting in the switchboard switc hboard and the tightness of power connections. Check that all auxiliaries and accessories are correctly installed: i nstalled: b electrical auxiliaries b terminal blocks b
connections of auxiliary circuits.
Operation Check the mechanical operation of the circuit breakers: b opening of contacts b closing of contacts.
Check on the control unit Check the control unit of each circuit breaker using the respective user manuals.
40
51201116AA - 06/2009
Inspecting and testing before use
What to do when the circuit breaker trips
Note the fault Faults are signalled locally and remotely by the indicators and auxiliary contacts installed on circuit breakers (depending on each conguration). See page 12 in this manual and the user manual of the control unit for information on the fault indications i ndications available with your circuit circui t breaker.
Identify the cause of tripping A circuit must never be reclosed (locally or or remotely) before the cause of the fault has been identied and cleared. A fault may have a number of causes: b depending on the type of control unit, fault diagnostics are available. See the user manual for the control unit. l oads, a number of b depending on the type of fault and the criticality of the loads, precautionary measures must be taken, in particular the insulation and dielectric tests on a part of or the entire installation. These checks and test must be directed and carried out by qualied personnel.
Inspect the circuit breaker following a short-circuit b b b b
Check the arc chutes (see page 43) Check the contacts (see page 43) Check the tightness of connections (see the device installation manual) Check the disconnecting-contact clusters (see page 43).
Reset the circuit breaker The circuit breaker can be reset locally or remotely. See page 12 in this manual for information on how the circuit breaker can be reset.
41
51201116AA - 06/2009
Maintaining Masterpact performance
Recommended maintenance program
Recommended program for devices used under normal operating conditions: Ambient temperature: temperature: -5 °C / +70 °C Normal atmosphere
Periodic inspections required Interval
Operation
Procedure
Open and close the device locally v see pages 10 and 11 and remotely, successively using the various auxiliaries b Test the operating sequences v see pages 10 and 11 b Test the control unit using the mini v see the user manual of the test kit control unit
Each year
b
Every two years or when the control-unit maintenance indicator reaches 100
b
v
b
v
Check the arc chutes Check the main contacts b Check the tightness of connections
see page 43 see page 43 v see the device installation manual
Parts requiring replacement, depending on the number of operating cycles The following parts must be replaced periodically to lengthen the service life of the device (maximum number of operating cycles).
Part
Intervening entity
Arc chutes
b
Main contacts
b
MCH gear motor Mechanical interlocks Connecting-rod springs
b
MX/MN/XF
Description or procedure
User
Inspection: user b Replacement: Schneider After Sales Support b
User User
b
Schneider After Sales Support
b
User
v
see page 43
v
see page 43
v
see page 9
v
see pages 10 and 11
Part replacement must be programmed on the basis of the data below, listing the service life of the various parts in numbers of O/C cycles at the rated current.
Number of O/C cycles at the rated current Type of circuit breaker
Maximum service life
Service life of various parts
Arc chutes, Connecting-rod MX / XF / MN main contacts springs, MCH, releases interlocking systems NT08 to 10 type H1
25000
440 V: 6000 690 V: 3000
12500
12500
NT12 type H1
25000
440 V: 6000 690 V: 2000
12500
12500
NT16 type H1
25000
440 V: 3000 690 V: 1000
12500
12500
NT08 to 10 type L1
25000
440 V: 3000 690 V: 2000
12500
12500
42
51201116AA - 06/2009
Maintaining Masterpact performance
Maintenance operations
Before undertaking any maintenance work, de-energise the installation and t locks or warnings in compliance with all applicable safety standards.
Arc chutes b
Remove the xing screws
A 5 4 0 0 6 E
1
A 0 0 0 0 6 E
b v v
2
2
Check the arc chutes: chamber intact separators not corroded.
If necessary, replace the arc chutes. A 1 0 0 0 6 E
3
3
b
If the control unit has a maintenance indicator, there is no need to systematically check the contacts.
A 2 0 0 0 6 E
Ret the arc chutes and secure with a tightening torque of 1.5 Nm.
Wear of main contacts Remove the arc chutes Visually check the contacts. If necessary, contact Schneider After-sales support. b b
If the contacts are worn, have the concerned poles replaced by the Schneider service centre.
Disconnecting-contact clusters Grease the contacts using the grease listed on page 44, supplied by Schneider Electric b
b
Check thecircuit contacts as follows: open the breaker v de-energise the busbars v disconnect the circuit breaker v remove the circuit breaker v check the contact ngers (no sign of copper should be visible). Replace any worn clusters. v
43
51201116AA - 06/2009
Maintaining Masterpact performance
Ordering replacement parts
Electrical accessories The electrical accessories that may require replacement are the following: b MCH gear motor b MX opening release(s) b XF closing release b MN undervoltage release. See pages 33 and 34 in the "Auxiliaries for remote operation" section for their characteristics and part numbers. A 2 0 0 0 6 E
A 9 4 3 0 6
Arc chutes Part numbers (1 arc chute): v type H1 v type L1. b
b
One chute per pole.
b
1 per 3- or 4-pole device.
b
1 per device.
b
1 per device.
Front Part number.
E
b
A 6 9 4 0 6 E
Charging handle b
Part number (1 handle).
A 6 3 3 1 5 E
Crank Part number (1 crank). b
Support for MX / XF / MN releases b
A 7 3 2 6 4 E
Part number.
b
1 per device.
Disconnecting-contact clusters b
Part number (1 cluster).
Grease for disconnecting-contact clusters b
Part number (1 can).
44
51201116AA - 06/2009
45
51201116AA - 06/2009
Troubleshooting and solutions
Maintaining Masterpact performance
Problem Circ Ci rcui uitt bre break aker er ca cann nnot ot be cl clos osed ed lo loca call lly y or or rem remot otel ely y
Probable causes
Solutions
b
Circui Circ uitt bre break aker er pa padl dloc ocke ked d or or key keylo lock cked ed in th the e "open" position
v
Circuit breaker interlocked mechanically in a source changeover system
v
b
disable the locking fonction
check the position of the other circuit breaker in the changeover system v
modify the situation to release the interlock terminate racking in (connection) of the circuit breaker
Circuit breaker not completely connected
v
The reset button signalling a fault trip has not been reset
v
Closing order not executed by the X F closing release
v
b
clear the fault push the reset button on the front of the circuit breaker b Stored energy mechanism not charged v charge the mechanism manually v if it is equipped with a an MCH gear motor, check the supply of power to the motor. If the problem persists, replace the gear motor (MCH) b MX opening shunt release permanently v there is an opening order. supplied with power Determine the origin of the order. The order must be cancelled before the circuit breaker can be closed b MN undervoltage release not supplied with v there is an opening order. power Determine the origin of the order. v check the voltage and the supply circuit (U > 0.85 Un). If the problem persists, replace the release b XF closing release continuously supplied with v cut the supply of power to the XF closing power, but circuit breaker not "ready to close" release, then send the closing order again via (XF not wired in series with PF contact) the XF, but only if the circuit breaker is "ready to close" b Permanent trip order in the presence of a v Disable these protection functions on the Micrologic P or H control unit with minimum voltage Micrologic P or H control unit and minimum frequency protection in Trip mode and the control unit powered b
Circuit breaker cannot be closed remotely but can be opened locally using the closing pushbutton
b
Unexpected tripping without activation of the reset button signalling a fault trip
b
Unexpected tripping with activation of the reset button signalling a fault trip
check the voltage and the supply circuit (0.85 - 1.1 Un). If the problem persists, replace the XF release
MN undervoltage release supply voltage too low v check the voltage and the supply circuit Load-shedding Load-sheddin g order sent to the MX opening (U > 0.85 Un) release by another device load on the distribution v check the overall load system v if necessary, modify the settings of devices in the installation b Unnecessary opening order from the MX v determine the origin of the order opening release b
A fault is present : b
b
overload earth fault short-circuit detected by the control unit
b
Thermal memory
b
Transientt overcurrent when closing Transien
b
Closing on a short-circuit
b
Instantaneous opening after each attempt to close the circuit breaker with activation of the reset button signalling a fault trip
v
v
determine and clear the causes of the fault v check the condition of the circuit breaker before putting it back into service v see the user manual of the control unit v press the reset button v modify the distribution system or the controlunit settings v check the condition of the circuit breaker before putting it back into service v press the reset button v clear the fault v check the condition of the circuit breaker before putting it back into service v press the reset button
46
51201116AA - 06/2009
Maintaining Masterpact performance
Troubleshooting and solutions
Problem
Probable causes
Circuit breaker cannot be opened remotely, remotely, but can be opened locally
Solutions
Opening order not executed by the MX opening v check the voltage and the supply circuit release (0.7 - 1.1 Un). If the problem persists, replace the MX release b Opening order not executed by the MN v drop in voltage insufcient or residual b
undervoltage release
voltage (> 0.35 Un) across the terminals of the undervoltage release. If the problem persists, replace the MN release
Circuit breaker cannot be opened locally
b
Operating mechanism malfunction or welded contacts
v
Circ Ci rcui uitt bre break aker er ca cann nnot ot be re rese sett loc local ally ly bu butt not not re remo mote tely ly
b
Insu In suf fci cien entt sup suppl ply y vol volta tage ge fo forr the the MC MCH H gea gearr motor
v
Nuisance tripping of the circuit breaker with activation of the reset button signalling a fault trip
b
Impossible to insert the crank in connected, test or disconnected position
b
Impossible to turn the crank
b
Circuit breaker cannot be removed from chassis
b
b
The rails are not completely out
turn the crank until the circuit breaker is in disconnected position position and the reset button out v pull the rails all the way out
b
Cradle/circuit breaker mismatch protection
v
Circuit breaker cannot be connected (racked in)
Reset button not pushed-in completely
A padlock or keylock keylock is present on the chassis or a door interlock is present
disable the locking function
The reset button has not been pressed
v
press the reset button
Circuit breaker not in disconnected p os osition
v
The safety shutters are locked The disconnecting-contact clusters are incorrectly positioned b Cradle locked in disconnected position b The reset button has not been pressed, preventing rotation of the crank b The circuit breaker has not been sufciently inserted in the cradle b Th The e cir circu cuit it br brea eake kerr is no nott in in the the ri righ ghtt pos posit itio ion n b
Circuit breaker cannot be locked in connected, test or disconnected position
check the voltage and the supply circuit (0.7 - 1.1 Un). If the problem persists, replace the MCH release v push the reset button in completely v
b
Circ Ci rcui uitt bre break aker er ca cann nnot ot be lo lock cked ed in di disc scon onne nect cted ed po posi siti tion on
contact a Schneider service centre
b
The cranck is still in the cradle
b b
Check that locking in any position is enabled The circuit breaker is not in the right position
b
The cranck is still in the cradle
check that the cradle corresponds with the circuit breaker v remove the lock(s) v reposition the clusters v v
disable the cradle locking function press the reset button
insert the circuit breaker completely so that it is engaged in the racking mechanism v check the circuit breaker position by making sure the reset button is out v remove the crank and store it v
v
contact a Schneider Electric service
centre
check the circuit breaker position by making sure the reset button is out v remove the crank and store it v
47
51201116AA - 06/2009
Checking Masterpact operating conditions
A 3 0 0 0 6 E
Environmental conditions
Ambient temperature Masterpact NT devices can operate under the following temperature conditions: b the electrical and mechanical characteristics are stipulated for an ambient temperature of -5 °C to +70 °C b circuit-breaker closing is guaranteed down to -35 °C b Masterpact NW (without the control unit) can be stored in an ambient temperature of -40 °C to +85 °C b the control unit can be stored in an ambient temperature of -25 °C to +85 °C.
A 4 0 0 0 6 E
Extreme atmospheric conditions Masterpact NT devices have successfully passed the tests dened by the following standards for extreme atmospheric conditions: b IEC 68-2-1: dry cold at -55 °C b IEC 68-2-2: dry heat at +85 °C b IEC 68-2-30: damp heat (temperature +55 °C, relative humidity 95 %) b IEC 68-2-52 level 2: salt mist. Masterpact NT devices can operate in the industrial environments dened by standard IEC 947 (pollution degree up to 4). It is nonetheless advised to check that the devices are installed in suitably cooled switchboards without excessive dust.
A 5 0 0 0 6 E
Vibrations Masterpact NT devices resist electromagnetic or mechanical vibrations. Tests are carried out in i n compliance with standard IEC 68-2-6 for the levels required by merchant-marine inspection organisations (Veritas, Lloyd’s, etc.): b 2 to 13.2 Hz: amplitude ±1 mm b 13.2 to 100 Hz: constant acceleration 0.7 g. Excessive vibration may cause tripping, breaks in connections or damage to mechanical parts.
48
51201116AA - 06/2009
Checking Masterpact operating conditions
A 6 0 0 0 6 E
Altitude Masterpact NT devices are designed for operation at altitudes under 2000 metres. At altitudes higher than 2000 metres, the modications in the ambient air (electrical resistance, cooling capacity) lower the following characteristics. characteristics . m 0 0 0 2
A 7 0 0 0 6 E
Environmental conditions
Altitude (m)
2000
3000
4000
5000
Dielectric withstand voltage (V)
3500
3150
2500
2100
Rated insulation level (V)
1000
900
700
600
Rated operational voltage (V) Rated current (A) at 40 °C
690
590
520
460 460
1 x In
0.99 x In
0.96 x In
0.94 x In In
Electromagnetic disturbances Masterpact NT devices are protected against: b overvoltages caused by devices that generate electromagnetic disturbances b overvoltages caused by an atmospheric disturbance or by a distribution-system outage (e.g. failure of a lighting system) b devices emitting radio waves (radios, walkie-talkies, radar, etc.) b electrostatic discharges produced by users. Masterpact NT devices have successfully passed the electromagnetic-compatibility tests (EMC) dened by the following international standards: b IEC 947-2, appendix F b IEC 947-2, appendix B (trip units with earth-leakage function). The above tests guarantee that: b no nuisance tripping occurs b tripping times are respected.
Cleaning Non-metallic parts: never use solvent, soap or any other cleaning product. Clean with a dry cloth only b Metal parts: clean with a dry cloth whenever possible. If solvent, soap or any other cleaning product must be used, make sure that it does not come into contact with non-metallic parts. b
49
51201116AA - 06/2009
Notes
50
51201116AA - 06/2009
51
51201116AA - 06/2009
Notes
52
51201116AA - 06/2009
Schneider Electric Industries SAS
standards, specications As standards, specications and designs designs change change from time to time, please ask for for conrmation conrmation
35, rue Joseph Monier CS 30323 F - 92506 Rueil Malmaison Cedex
of the information given in this publication.
RCS Nanterre 954 503 439 Capital social 896 313 776 € www.schneider-electric.com
This document has been printed on ecological paper Design: Schneider Electric Photos: Schneider Electric Printed:
s é v r e s é r s t i o r d s u o T c i r t c l e E r e d i e n h c S 9 0 0 2
View more...
Comments
