Directional OC EF MTR 132 KV

May 13, 2019 | Author: Himdad Tahir | Category: Transformer, Relay, Electrical Substation, Electrical Components, Electricity
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Short Description

Directional over current...

Description

Substation:

KURD SAT 132/33/11 SAT 132/33/11 kV 2 x63/50/40 MVA

Contract: KRG-MOE SS6 b / 2011

Site Commissioning Test Record Sheet DIRECTIONAL O/C and E/F Protection Protected Unit

Circuit No. and ref.: TR ANSFORMER LINE-Main Transformer No.

1.RELAY DATA: Relay type designation

Serial Number

Rated current (Amp.)

5

Produced by:

SIEMENS

Rated Frequency (Hz)

50 Hz

Auxiliary DC supply (V)

110

Feeder/Location

Device No.

V.T. Ratio (kV/kV)

132/V3  /0.11V3 / 0.11/V3

C.T. Ratio ( A/A )

300/5/5/5

Polarizing Voltage Vn

110 V AC

2. SETTING RECORD O/C Setting

Ip=

A, TMS=

Ip>= A, t= Ip>>= NA

Plant Relay Address E/F Setting

Plant Relay Address

Char:NINV sec.

Char:DMT

RCA +300 Direction: Forward 132 kV Main Power Transformer Line

Iep= A, TMS= Char:NINV Iep>= A, t= sec. Char:DMT Iep>>= NA RCA -600 Direction: Forward 132 kV Main Power Transformer Line

3. GENERAL INSPECTION AND CHECKS: - Installation and wiring correct to the relevant drawings: …………………………………………



- Test block connections checked: …………………………………………………………………………….…



- Modules type designation or ratings information is correct: ……………………………………



- Relay case connected to the local earth bar: …………………………………………………………….



- Output relays contacts are operating properly: …………………………………………………………



- Operation of digital display, LED indicators, buttons on relay front panel: …………..…



-Communication………………………………………………………………………………………………………………



Date:

Tested by: Zozik Co File Name: 44.1

Witnessed by: MOE (Client) KT Directional_OC_EF_MTR_132

kV.doc

Witnessed by: PB (Owner’s Engineer)

Substation:

KURD SAT 132/33/11 kV 2 x63/50/40 MVA

Contract: KRG-MOE SS6 b / 2011

Site Commissioning Test Record Sheet 4. DIRECTIONAL CHARACTERISTICS PRESENTATION:

Reverse Start Non Operating Area

ReverseStart Start Reverse NonOperating OperatingArea Area Non

RCA=+30

Is

Is

I

I

Vp

O/C

E/F

Forward Start Forward Operation Area

Forward Start Forward Operation Area RCA=-60

Vp=Quadratue voltage lagging current 90 O

Vp=Residual voltage I=Zero Sequence Current

Vp

5. TEST RESULTS :

5.1 Directional Over-current test by secondary current/voltage injection: Polarizing Voltage(s)

Current injected

Injected (V) L1=63V

Angle 00

Phase(s)

Amps

L2=63V

-1200

L1

6

L3=63V

+1200

L1=63V

+1200

L2=63V

00

L2

6

L3=63V

-1200

L1=63V

-1200

L2=63V

+1200

L3

6

L3=63V

00

L1=63V

00

L1

6

L2=63V

-1200

L2

6

L3=63V

0

L3

6

+120

Angle Boundaries of operating area (Current shifted ref. Vp)

Date:

Tested by: Zozik Co File Name: 44.1

Witnessed by: MOE (Client) KT Directional_OC_EF_MTR_132

kV.doc

Witnessed by: PB (Owner’s Engineer)

Substation:

KURD SAT 132/33/11 kV 2 x63/50/40 MVA

Contract: KRG-MOE SS6 b / 2011

Site Commissioning Test Record Sheet

5.2 Directional Earth-Fault current test by secondary current/voltage injection: Polarizing Voltage(s)

Current injected

Injected (V)

Angle

Phase(s)

Amps

U0=63V

00

I0(Residual)

5

Angle Boundaries of operating area (Current shifted ref. Vp)

Note: Values of injected quantities exceeded threshold values of I>, I0> and Vp 5.3 Sensitivity and timing test by secondary current injection: 5.3.1 Over current and Earth fault: See attached Report 5.3.2 Sensitivity test to Polarizing Voltage: Min. Polarizing Voltage:

L12=

V

L13=

V

L23=

V

7.4 Other Tests and Checks Circuit breaker tripping and signaling: …………………………………………………………….…….



On load tests and checks performed: …………………………………………………………….…………….



Test Equipment: Observation of testing engineer:

Site tests results within factory assigned and PTR values TESTS PASSED SATISFACTORY.





Date:

Tested by: Zozik Co File Name: 44.1

Witnessed by: MOE (Client) KT Directional_OC_EF_MTR_132

kV.doc

Witnessed by: PB (Owner’s Engineer)

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