ABB - IMZ Prospect

CURRENT TRANSFORMERS type IMZ 10 Catalogue card A29/16/00/E

APPLICATION The cast − resin insulated, single−phase, supporting current transformers type IMZ 10 are intended for supplying measuring instruments and protective circuits of electrical power devices with maximum operating voltage of the power network up to 12 kV and frequency 50 Hz. The range of rated primary currents: 5 ÷ 1500 A and 2 × 15 ÷ 2 × 600 A. Version with one, two or three cores.

CHARACTERISTICS − small overall dimensions, − the width of transformer, which enables the installation with distance between phases t =150 mm, − all of mounting dimensions enable the interchangeability of transformers of this type with other transformers manufactured by well−known firms, − the reliability of operation.

OPERATING CONDITIONS The current transformers type IMZ 10 are designed for operation in indoor equipment, in temperate and tropical climate conditions, and in aggressive environmental conditions. Thanks to the increased impulse test voltage strength and to the increased rated thermal strength the current transformers type IMZ 10 are able to operate at altitudes up to 2600 m above sea level. Long−duration thermal current and limits of deviations of transformers in class of accuracy 0,5 corre− spond to extended current range for 120% × Ipn. The lowest permissible temperature during transportation and storage amounts to 218 K (−55oC). The current transformers type IMZ 10 are designed for operation at temperatures from 268 K (−5oC) to 313 K (+40oC).

DESIGN AND PRINCIPLE OF OPERATION The cast − resin insulated current transformers type IMZ 10 are single−phase, low power transformers, operating in quasi short−circuit conditions, transforming the primary current flowing through the high voltage circuit to the secondary current at low potential with the accuracy according to their class. The basic structural components of the current transformers are: primary winding, secondary winding or windings, magnetic core and steel base. The primary winding is cast in epoxy−resin mixture. The resinous casting constitutes the main insulation of the transformer. The secondary windings, wound on the insulating spools, are placed together with the magnetic cores in the window of the resinous casting. The steel base is screwed down to the resinous casting. There is the terminal box in the base, in which there are installed the terminal plates with the leads of secondary windings connected to them. The grounding of no matter which of the terminals of secondary winding is made by screwing in a bolt, which is present in a small foil bag placed in the terminal box. We deliver, on Customer’s request, the cover for current transformers with two and three cores, which enables the sealing of the terminals of measuring windings only.

COMPLIANCE WITH STANDARDS − PN−IEC 185 − IEC 185 − GOST 7746 − 89 − VDE 0414/12.70

THE EXAMPLE OF ORDER The current transformer type IMZ 10, 2 × 100/5/5 A/A/A, Ith = 200 × Ipn I core:10 VA, class 0,5; FS 10 II core: 5 VA, 10 P 10

WARRANTY The factory warranty is twenty four months since the day of putting the apparatus into operation, but not longer than thirty six months since the date of purchase.

TECHNICAL DATA Rated voltage

Maximum permissible voltage of transformer

kV

kV

kV

kV

Hz

kA

kA

kA

10

12

28

75

50

60

150

2,5 × Ith

Type

IMZ 10

Rated test votage of insulation power lightning frequency

Rated frequency

Maximum short−time current thermal dynamic (1− sec.)

Rated short−time dynamic current

The approximate mass of current transformer type IMZ 10 amounts to 24 kg. ABB Power Distribution

Parameters related to primary circuit The not switchable current transformers

The switchable current transformers

500×Ipn

Rated primary current I pn

100×I pn

200×Ipn

300×Ipn

500×Ipn

kA 0,5

A 2x1

kA 0,1−0,2

kA 0,2−0,4

kA 0,3−0,6

kA 0,5−1

1 2,5

2x2 2x5 2x10 2x15

0,2−0,4 0,5−1 1−2 1,5−3

0,4−0,8 1−2 2−4 3−6

0,6−1,2 1,5−3 3−6

1−2 2,5−5

2x20 2x25 2x30

2−4 2,5−5 3−6

4−8 5−10 6−12

6−12 7,5−15 9−18

10−20 12,5−25 15−30

20 25 30

2x40 2x50 2x60

4−8 5−10 6−12

10−20 12−24

12−24 15−30

25−50

37,5

2x75 2x100 2x120 2x125

7,5−15 10−20 12−24

15−30 20−40

15−30 20−40 25−40

30−40

40

2x150 2x200 2x250 2x300 2x400 2x500

30−40 40−40 40−40

40−40

60

2x600

40−40

Rated primary current I pn

100×Ipn

200×I pn

300×I pn

A 1

kA 0,1

kA 0,2

kA 0,3

2 5 10

0,2 0,5 1

0,4 1 2

0,6 1,5 3

15 20 25 30

1,5 2 2,5 3

3 4 5 6

6 7,5 9

7,5 10 12,5 15

40 50 60

4 5 6

8 10 12

12 15 18

75 80 100

7,5 8 10

15 20

22,5 24 30

120 125 150 200

12

24

15 20

30 40

250 300 400

25 30 40

40

500 600 750

40 40 40

60

800 1000 1200

60 60 60

1500

60

Rated short−time thermal current (1 − sec.) Ith

37,5 40 40 40 60 60

Version

The second windings 2S1 − 2S2

7,5−15

22,5−40 30−40

37,5−40

37,5−40 40−40 40−40 40−40

Rated secondary current Isn = 5 [A]

Parameters of secondary windings The first windings 1S1 − 1S2 (S1 − S2)

40

Rated short−time thermal current (1 − sec.) Ith

The third windings 3S1 − 3S2

Range of production Rated short−time thermal current (1 − sec.) Ith 100×I pn 200×Ipn 300×I pn 500×I pn

Parameters of secondary windings version not recommended

10VA cl.0,5 FS10

version recommended

15VA cl.0,5 FS10

impossible to make

1 core

30VA cl.0,5 FS10

* except Ipn = 800; 2×400 [A] ** except Ipn = 1; 5; 25; 50; 800; 1000; 2×1; 2×5; 2×25; 2×50; 2×250; 2×400; 2×500 [A]

45VA cl.0,5 FS10 10VA 10P10 15VA 10P10 20VA 10P10 30VA 10P10

3 cores

2 cores

45VA 10P10 10VA cl.0,5 FS10

5VA 10P10

10VA cl.0,5 FS10

10VA 10P10

10VA cl.0,5 FS10

15VA 10P10

15VA cl.0,5 FS10

15VA 10P10

15VA cl.0,5 FS10

20VA 10P10

15VA cl.0,5 FS10

30VA 10P10

30VA cl.0,5 FS10

30VA 10P10

30VA cl.0,5 FS10

45VA 10P10

Minimum installation distances for current transformers type IMZ 10 in consideration of test voltage

5VA cl.0,5 FS10

5VA 10P10

5VA 10P10

10VA cl.0,5 FS10

5VA 10P10

10VA 10P10

10VA cl.0,5 FS10

10VA 10P10

15VA 10P10

10VA cl.0,5 FS10

15VA 10P10

15VA 10P10

15VA cl.0,5 FS10

5VA 10P10

5VA 10P10

15VA cl.0,5 FS10

10VA 10P10

10VA 10P10

15VA cl.0,5 FS10

10VA 10P10

15VA 10P10

15VA cl.0,5 FS10

15VA 10P10

15VA 10P10

30VA cl.0,5 FS10

15VA 10P10

15VA 10P10

ABB Power Distribution

* **

* * ** **

Manufacturer reserves for itself the right to train the changes resulting from the technological progress.

Publication 04.2000

DIMENSIONAL DRAWING

CURRENT TRANSFORMERS type IMZ 15 Catalogue card A34/06/00/E

APPLICATION The cast−resin insulated single phase, supporting current transformers type IMZ 15 are intended for supplying mea− suring instruments and protective circuits of electrical power devices with the maximum permissible voltage of the power network up to 17,5 kV and frequency 50 Hz. The range of rated primary currents: 5 ÷ 1500 A and 2 × 15 ÷ 2 × 600 A.

CHARACTERISTICS − small overall dimensions, − the width of the transformer enables its installation with the distance between phases t = 150 mm, − all of mounting dimensions enable the interchangeability of these transformers with the transformers of such kind manufactured by other well−known firms, producers of current transformers, − very low level of partial discharges ensures the durability of insulation and the reliability of operation.

OPERATING CONDITIONS The current transformers type IMZ 15 are designed for operation in indoor equipment, in temperate and tropical climate conditions, and in aggressive environmental conditions. Thanks to the increased impulse test voltage strength and to the increased rated thermal strength the current transformers type IMZ 15 can operate at altitudes up to 2600 m above sea level. The long−duration thermal current and the limits of errors of the transformers in class of accuracy 0,5 correspond to the extended current range for 120% × Ipn. The current transformers type IMZ 15 are designed for operation at temperatures from 268 K (−5oC) to 313 K (+40oC). The lowest permissible temperature during transportation and storage is 218 K (−55 oC).

DESIGN AND PRINCIPLE OF OPERATION The cast−resin insulated current transformers type IMZ 15 are the single−phase, low power transformers working in conditions close to the short−circuit state, transforming the primary current flowing trough the high voltage circuit into the secondary current of low potential with the accuracy according to their class. The basic structural components of the current transformers are: the primary winding, the secondary winding or windings, the magnetic core and the steel base. The primary winding is cast in epoxy − resin mixture. The resinous casting makes the main insulation of the transformer. The secondary windings, wound on the insulating spools are placed together with the magnetic cores in the window of the resinous casting. The steel base is screwed down to the resinous casting. There is the terminal box in the base, in which there are installed the terminal plates with the leads of secondary windings connected to them.

COMPLIANCE WITH STANDARDS − PN−IEC 185 + A1:1994 − IEC 185 − DIN/VDE 0414 Teil 1/01.94 − GOST 7746−89

THE EXAMPLE OF ORDER: The current transformer type IMZ 15; 2 × 10/5/5 A/A/A; Ith = 200 × Ipn I core: 10 VA; class 0,5; FS10 II core: 5 VA; 10P10

WARRANTY The factory grants 24 months of warranty since the day of putting the apparatus into operation, but no longer than 36 months since the date of sale.

ADDITIONAL INFORMATION The secondary terminals of measuring windings of the currnet transformers type IMZ 15 can be sealed separately.

TECHNICAL DATA

Type

IMZ 15

Maximum permissible voltage of transformer

Rated test votage of insulation power lightning frequency

Rated frequency

Maximum short−time current thermal dynamic (1− sec.)

Rated short−time dynamic current

kV

kV

kV

Hz

kA

kA

kA

17,5

38

95

50

60

150

2,5 × Ith

The approximate mass of current transformer type IMZ15 amounts to 24 kg.

ABB Power Distribution

PARAMETERS RELATED TO PRIMARY CIRCUIT The not switchable current transformers Rated primary Rated short−time thermal current (1 − sec.) Ith current Ipn 100×Ipn 200×Ipn 300×Ipn A 5 10 15 20 30 50 75 100 150 200 300 400 600 800 1000 1200 1500

kA 0,5 1 1,5 2 3 5 7,5 10 15 20 30 40 40 60 60 60 60

3 cores

Rated secondary current Isn = 5 A

2 cores

kA 1,5 3

A

kA

kA

kA

2×15 2×50

1,5−3 5−10

3−6 10−20

15−30

2×75

7,5−15

15−30

2×100 2×150

10−20 15−30

20−40 30−40

2×200

20−40

30

2×300 2×400

30−40 40−40

40

2×600

40−40

6 15

Parameters of secondary windings The first The second The third windings windings windings 1S1 − 1S2 2S1 − 2S2 3S1 − 3S2 (S1 − S2)

Version

1 core

kA 1 2 3 4 6 10 15 20 30 40 40

The switchable current transformers Rated primary Rated short−time thermal current (1 − sec.) Ith current Ipn 100×Ipn 200×Ipn 300×Ipn

30−40

Range of production Rated short−time thermal current (1 − sec.) I th 100×Ipn

200×Ipn

300×Ipn

15VA cl. 0,5 FS10 30VA cl. 0,5 FS10 30 VA 10P10 45VA 10P10 10VA cl. 0,5 FS10

5VA 10P10

10VA cl. 0,5 FS10

10VA cl. 0,5 FS10

15VA cl. 0,5 FS10 15VA cl. 0,5 FS10

30VA 10P10 15VA 10P10

15VA 10P10

*

Range of catalogue production except Ipn = 1; 5; 25; 50; 800; 1000; 2×1; 2×5; 2×50; 2×250; 2×400; 2×500 A Note: There is a possibility making the transformer with parameters relating to current circuit and with parameters of secondary windings the same like in the transformers IMZ10.

*

Minimum installation distances for the current transformers type IMZ 15

ABB Power Distribution

The current circuit for the transformers type IMZ 15 (for type tests)

1. 2. 3. 4. 5. 6. 7. 8.

9.

10. 11.

Steel base. Insulating housing. Plastic cover. Standardised machine elements: Fe−Zn 12 µm. For switchable transformers only. Union pieces: brass for version N3, Cu−Ni 10 µm for version T3 (for Ith>30/60 kA: Cu for version N3, Cu−Ni 10 µm for version T3). Fasteners: Cu−Ni 10 µm. For version N3 − mandrels M8 and standardised machine elements M8: Fe−(Cu 3 µm + Sn 10 µm). For version T3 − mandrels M8:Fe−(Cu 10 µm + Ni 5 µm + Cr 0.3 µm). − spring washers: as for version N3. − remaining standardised machine elements brass−Ni 10 µm. For version N3 − bolt M12 and standardised machine elements M12: Fe−(Cu 3 µm + Sn 10 µm). For version T3 − bolt M12 and standardised machine elements M12: Fe−(Cu 10 µm + Ni 5 µm + Cr 0.3 µm). − spring washers: as for version N3. − remaining standardised machine elements brass−(Cu−Ni 5 µm). Primary terminals: brass for version N3, brass−Ni 10 µm for version T3 (for cooper terminals: Cu for version N3, Cu−Ni 10 µm for version T3). Secondary terminals: brass−Ni 10 µm. Standardised machine elements M6: spring washer: Fe−(Cu 3 µm+Sn 10 µm). Remaining standardised machine elements: brass−Ni 10 µm).

Publication 04.2000

Notes:

CURRENT TRANSFORMERS type IMZ 20 Catalogue card A29/26/00/E

APPLICATION The cast − resin insulated, single−phase, supporting current transformers type IMZ 20 are intended for supplying measuring instruments and protective circuits of electrical power devices with maximum operating voltage of the power network up to 24 kV and frequency 50 Hz. The range of rated primary currents: 5 ÷ 1500 A and 2 × 15 ÷ 2 × 600 A. Version with one, two or three cores.

CHARACTERISTICS − small overall dimensions, − all of mounting dimensions enable the interchangeability of transformers of this type with other transformers manufactured by well−known firms, − the reliability of operation.

OPERATING CONDITIONS The current transformers type IMZ 20 are designed for operation in indoor equipment, in temperate and tropical climate conditions, and in aggressive environmental conditions. Thanks to the increased impulse test voltage strength and to the increased rated thermal strength the current transformers type IMZ 20 are able to operate at altitudes up to 2600 m above sea level. Long−duration thermal current and limits of deviations of transformers in class of accuracy 0,5 correspond to extended current range for 120% × Ipn. The lowest permissible temperature during transportation and storage amounts to 218 K (−55oC). The current transformers type IMZ 20 are designed for operation at tempera− tures from 268 K (−5oC) to 313 K (+40oC).

DESIGN AND PRINCIPLE OF OPERATION The cast − resin insulated current transformers type IMZ 20 are single−phase, low power transformers, operating in quasi short−circuit conditions, transforming the primary current flowing through the high voltage circuit to the second− ary current at low potential with the accuracy according to their class. The basic structural components of the current transformers are: primary winding, secondary winding or windings, magnetic core and steel base. The primary winding is cast in epoxy−resin mixture. The resinous casting constitutes the main insulation of the transformer. The secondary windings, wound on the insulating spools, are placed together with the magnetic cores in the window of the resinous casting. The steel base is screwed down to the resinous casting. There is the terminal box in the base, in which there are installed the terminal plates with the leads of secondary windings connected to them. The grounding of no matter which of the terminals of secondary winding is made by screwing in a bolt, which is present in a small foil bag placed in the terminal box. We deliver, on Customer’s request, the cover for current transformers with two and three cores, which enables the sealing of the terminals of measuring windings only.

COMPLIANCE WITH STANDARDS − PN−IEC 185 − IEC−185 − VDE 0414/12.70

THE EXAMPLE OF ORDER The current transformer type IMZ 20, 2×100/5/5 A/A/A, Ith= 200 × I pn I core:10 VA, class 0,5; FS 10 II core: 5 VA, 10 P 10

WARRANTY The factory warranty is twenty four months since the day of putting the apparatus into operation, but not longer than thirty six months since the date of purchase.

TECHNICAL DATA Rated voltage

Maximum permissible voltage of transformer

kV

kV

kV

kV

Hz

kA

kA

kA

20

24

50

125

50

60

150

2,5 × Ith

Type

IMZ 20

Rated test votage of insulation power lightning frequency

Rated frequency

Maximum short−time current thermal dynamic (1− sec.)

Rated short−time dynamic current

The approximate mass of current transformer type IMZ 20 amounts to 33 kg.

ABB Power Distribution

Parameters related to primary circuit The switchable current transformers

The not switchable current transformers Rated primary current Ipn

200×Ipn

300×Ipn

500×Ipn

100×Ipn

200×Ipn

300×Ipn

500×Ipn

A 1

kA 0,1

kA 0,2

kA 0,3

kA 0,5

A 2×1

kA 0,1−0,2

kA 0,2−0,4

kA 0,3−0,6

kA 0,5−1

2 5 10

0,2 0,5 1

0,4 1 2

0,6 1,5 3

1 2,5

3 4 5 6

6 7,5 9

7,5 10 12,5 15

0,4−0,8 1−2 2−4 3−6

1−2 2,5−5

1,5 2 2,5 3

0,2−0,4 0,5−1 1−2 1,5−3

0,6−1,2 1,5−3 3−6

15 20 25 30

2×2 2×5 2×10 2×15 2×20 2×25 2×30

2−4 2,5−5 3−6

4−8 5−10 6−12

6−12 7,5−15 9−18

10−20 12,5−25 15−30

40 50 60

4 5 6

8 10 12

12 15 18

20 25 30

2×40 2×50 2×60

4−8 5−10 6−12

10−20 12−24

12−24 15−30

25−50

75 80 100

7,5 8 10

15

37,5

7,5−15 10−20 12−24

120 125 150 200

12

24

2×75 2×100 2×120 2×125

15−30 20−40

20

22,5 24 30

30 40

40

15−30 20−40 25−40

30−40

15 20

2×150 2×200 2×250

250 300 400

25 30 40

60

2×300 2×400 2×500

30−40 40−40 40−40

40−40

40

500 600 750

40 40 40

2×600

40−40

60

800 1000 1200

60 60 60

1500

60

Version

100×Ipn

Rated primary current Ipn

Rated short−time thermal current (1 − sec.) Ith

37,5 40 40

40

40 60 60

Rated short−time thermal current (1 − sec.) Ith

7,5−15

22,5−40 30−40

37,5−40

37,5−40 40−40 40−40 40−40

Rated secondary current Isn = 5 A

Parameters of secondary windings The first windings The second windings The third windings 1S1 − 1S2 2S1 − 2S2 3S1 − 3S2 (S1 − S2)

Range of production Rated short−time thermal current (1 − sec.) Ith 100×Ipn 200×Ipn 300×Ipn 500×Ipn

Parameters of secondary windings version not recommended

10VA cl.0,5 FS10

version recommended

15VA cl.0,5 FS10

impossible to make

1 core

30VA cl.0,5 FS10

* except Ipn = 800; 2×400 A ** except Ipn = 1; 5; 25; 50; 800; 1000; 2×1; 2×5; 2×25; 2×50; 2×250; 2×400; 2×500 A

45VA cl.0,5 FS10 10VA 10P10 15VA 10P10 20VA 10P10 30VA 10P10

3 cores

2 cores

45VA 10P10 10VA cl.0,5 FS10

5VA 10P10

10VA cl.0,5 FS10

10VA 10P10

10VA cl.0,5 FS10

15VA 10P10

15VA cl.0,5 FS10

15VA 10P10

15VA cl.0,5 FS10

20VA 10P10

15VA cl.0,5 FS10

30VA 10P10

30VA cl.0,5 FS10

30VA 10P10

30VA cl.0,5 FS10

45VA 10P10

5VA cl.0,5 FS10

5VA 10P10

5VA 10P10

10VA cl.0,5 FS10

5VA 10P10

10VA 10P10

10VA cl.0,5 FS10

10VA 10P10

15VA 10P10

10VA cl.0,5 FS10

15VA 10P10

15VA 10P10

15VA cl.0,5 FS10

5VA 10P10

5VA 10P10

15VA cl.0,5 FS10

10VA 10P10

10VA 10P10

15VA cl.0,5 FS10

10VA 10P10

15VA 10P10

15VA cl.0,5 FS10

15VA 10P10

15VA 10P10

30VA cl.0,5 FS10

15VA 10P10

15VA 10P10

ABB Power Distribution

* **

* * ** **

Publication 04.2000