Catalogue 1YMA699050-en

LOW VOLTAGE CURRENT TRANSFORMERStype: IMW, IMP, IMS, ISW, INSOA, IMR

2 ABB

APPLICATION

OPERATING CONDITIONS

DESIGN

The current transformers types IMW, IMP, IMS, ISW, INSOA areintended for supplying measuring instruments and protective circuitsof electrical power devices with maximum operating voltage 0,72 kVand frequency 50 Hz. These current transformers are manufacturedfor secondary currents 1 A or 5 A.The current transformers types IMR 0, IMR 1, IMR 2 are intended forsupplying measuring instruments and protective circuits of electricalpower devices with maximum operating voltage 0,72 kV andfrequency 50 Hz, particularly for fuse disconnectors of series SLMand SRE „Slim Line ”, size 00, 1, 2 and 3.

The current transformers are designed for operation in indoorequipment, in temperate (N3), tropical (T3) and marine (MU) climateconditions. Rated long–duration thermal current and limits ofdeviations of these transformers correspond to extended currentrange for 120%×I within the bounds of the ambient temperaturesfrom 268 K (-5°C) to 333 K (+60°C). Additionally the currenttransformers types INSOA, IMW, IMPa, IMPb, IMSa, IMSb, IMSc canoperate within the bounds of the ambient temperatures from 248 K(-25°C) to 333 K (+60°C).

The low voltage current transformers are single-phase, low powertransformers, operating in quasi short-circuit conditions andtransforming the current flowing through the primary circuit to thecurrent in the secondary circuit with the observance of therequirements relating to the accuracy of the transformation specifiedin standards.

pn

The windings of the current transformers types INSOA, IMW, IMPa,IMPb, IMSa, IMSb are closed in the housings made of slow-burningmaterial.The current transformers types IMSc, IMSd and ISW as well as thetransformers of series IMR have the housings made of self -extinguishing polycarbonate.The current transformers are made for different types of primarycircuits, for busbars with cross-sectional dimensions from 20×5 mmup to set of two busbars 120 ×10 mm.The range of primary currentsfrom 1 A up to 5000 A.The secondary terminals of the current transformers types IMW, IMP,IMS, ISW and IMR 2 can be sealed.

– PN–IEC 185 +A1:1994– IEC–185: 1987 +A1: 1990– GOST 7746 – 89– DIN/VDE 0414Teil: 1/01.94The current transformers types INSOA, IMW, IMPa, IMPb, IMSa,IMSb, IMSc are approved by Polish Register of Ships and byGermanischer Lloyd for use on ships.

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

The low voltage current transformer type IMScI = 600 A; I = 5 A; S = 10 VA; class 0,5; FS 5; for temperateclimate conditions.

COMPLIANCEWITH STANDARDS

WARRANTY

THE EXAMPLE OF ORDER

pn sn n

TRANSFORMERS type IMWTECHNICAL DATA

TypeClass ofaccuracy

Primarycurrent

Ipn

A A VA kA kA kV kV kg mm

Isn Sn Ith Idyn Um Up

Secon-dary

current

Ratedpower

Securityfactor forapparat.

FS

Maximumpermissiblevoltage of

transformer

Rated testvoltage Weight

(about)Spacing ofcerminals Current

terminals

Rated current

short-timethermal

dynamic(peak)

IMW

300

250

200

75100150

1; 2; 3; 5;10; 15;20; 2530; 50

5 0,2 10

5

10

5

10

60 x lpn 150 x lpn 0,72 3 0,8

108

102or

108

M6orM8

M8

5

10

5

10

5

0,5 or 1

10,2

0,5 or 1

1

0,5

1

0,2

0,5 or 1

10,2

0,5 or 1

5; 7,5;10; 15

205

5; 7,5;10; 15

205; 7,5;

1010

5; 7,5;10; 15

155

5; 7,5;10; 15

205; 7,5

5; 7,5; 10;15; 20

1 or 5

Note: The versions of current transformer type IMW with secondary winding parameters: 5 VA, class 0,2; 10 VA, class 0,5; 15 VA, class 1 areprefered.

DIMENSIONAL DRAWING IMW – transformers with bus bar 20 x 5 mm

ABB 3

TRANSFORMERS type IMPTECHNICAL DATA

* - for class 0,2 – FS 10..

TypeRatedratio

Rated power

Sn

FS

Maximumpermissiblevoltage of

transformer

Rated testvoltage

Maximaldimens.of cross--sectionof a bus

Weight(about)

Rated current

Ith

dynamic(peak)

Idyn Um Up

A/A VA VA VA kA kA kV kV kV kg

class 1class 0,5class 0,2

IMPa

100/5100/1150/5150/1200/5200/1250/5250/1300/5300/1150/5150/1200/5200/1250/5250/1300/5300/1400/5400/1

5

2,5 5

1060 x lpn

60 x lpn

150 x lpn

150 x lpn

0,72

0,72

3

3

10 x 20

10 x 30

0,8

0,5

10

5

5

52,5

5

5

57,510

57,510

5; 7,5;10; 15

5; 7,5;10; 15

5; 7,5;10; 15;

20

57,510

57,510

5; 7,5;10; 15;

20

5

57,5

57,5

*

*

*

IMPb

5; 7,5;10; 15

5; 7,5;10; 15

5; 7,5;10; 15;

20

5; 7,5;10; 15;

20

5; 7,5;10; 15;

20

5; 7,5;10; 15;

20

10

2o

r1

08

11

4o

r1

27

Securityfactor forapparat.

short-timethermal

DIMENSIONAL DRAWING IMPa – current transformers for cable max 20 mm or bar 20 x 10 mmIMPb – current transformers for cable max 30 mm or bar 30 x 10 mm

Ø

Ø

Supporting version Seal wired version

TRANSFORMERS type IMSTECHNICAL DATA

4 ABB

Rated testvoltage

Weight(about)

Rated current

short-timethermal

Ith

dynamic(peak)

Maximumpermissiblevoltage of

transformerIdyn Um Up

kA kA kV kV kgFS

Rated power

Sn

VAAA VA VA

class 1class 0,5class 0,2

Type

Primarycurrent

Ipn Isn

Secon-dary

current

55

7,55

7,55

7,5105

7,510155

7,51015205

7,5101520

5

5

5

5

57,510

57,51015

5

55

1

or

5

600

500

400

300

250

200

IMSa

150

57,51015

60 x lpn 150 x lpn 0,72 3 0,45

Securityfactor forapparat.

For version IMPa - the lengthA = 20,2 mmFor version IMPb - the lengthA = 30,2 mm

ABB 5

TECHNICAL DATA

Rated testvoltage Weight

(about)

Rated current

short-time

Ith

dynamic(peak)

Maximumpermissiblevoltage of

transformerIdyn Um Up

kA kA kV kV kgFS

Rated power

Sn

VAAA VA VA

kl. 1kl. 0,5kl. 0,2

Type

Primarycurrent

Ipn Isn

Secon-dary

current

60 x lpn 150 x lpn 0,72 3 0,7IMSb

600

750

800

1

lub

5

1000

5

5

5

7,5

57,5

10

57,5105

7,510

57,51015

5

10

5

5

10

10

5

7,51015

5

1015

57,5

7,510155

7,51015

101520

57,5

5

DIMENSIONAL DRAWING IMSa – current transformersfor bus bar max 40 x 10 mm

DIMENSIONAL DRAWING IMSb – current transformersfor bus bar max 60 x 10 mm

Securityfactor forapparat.

TECHNICAL DATA

Rated testvoltage Weight

(about)

Rated current

short-timethermal

Ith

dynamic(peak)

Maximumpermissiblevoltage of

transformerIdyn Um Up

kA kA kV kV kgFS

Rated power

Sn

VAAA VA VA

class 1class 0,5class 0,2

Type

Primarycurrent

Ipn Isn

Secon-dary

current

IMSc

7,5107,5105

7,510155

7,510155

7,510155

7,51015205

7,51015207,5101520

5

5

5

10

10

10

5

7,57,51010151520207,57,57,5

10

7,510

7,510

57,510

57,510

57,5

5

1

or

5

5

101015152020

57,510

57,510155

7,510155

7,51015205

7,51015207,5101520

400

500

600

750

800

1000

1200

1500

1600

2000

60 x lpn 150 x lpn 0,72 3 0,9

6 ABB

DIMENSIONAL DRAWING IMSc – current transformers for bus bar max 80 x 10 mm

Securityfactor forapparat.

TECHNICAL DATA

ABB 7

DIMENSIONAL DRAWING IMSd – current transformers for bus bar max 120 x 30 mm or 100 x 50 mm

Type

Primarycurent

Ipn

Secondarycurrent

Isn

Parameters of secondarywindings

Rated current

thermal, 1-sec. dynamic (peak)

Weight(about)

[kg]Idyn [kA]Ith [kA][A][A]

IMSd

1500

1600

2000 1

or

5

5

2500

3000

4000

5000

5 VA class 0,2 FS 1015 VA 0,5 FS 530 VA 1 FS 5

5 VA 0,2 FS 1015 VA 0,5 FS 530 VA 1 FS 5

15 VA 0,2 FS 530 VA 0,5 FS 545 VA 1 FS 5

15 VA 0,2 FS 530 VA 0,5 FS 545 VA 1 FS 5

30 VA 0,2 FS 560 VA 0,5 FS 560 VA 1 FS 5

45 VA 0,2 FS 560 VA 0,5 FS 590 VA 1 FS 5

60 VA 0,2 FS 590 VA 0,5 FS 5120 VA 1 FS 5

classclass

classclassclass

classclassclass

classclassclass

classclassclass

classclassclass

classclass

class

37,5 100

1,3

1,5

1,6

1,8

40 105

50 125

62,5 156,5

75 187

100 250

100 250

Maximumpermissible voltage

of transformer

Testvoltage

Extendedcurrentrange

0,72 3 120% x Ipn

ext. % x IpnUp [kV]Um [kV]

TRANSFORMERS type ISWTECHNICAL DATA

kA kA kV kV kgAA VA VAFS

short-timethermal

Ith Idyn Um Upclass 1class 0,5Ipn Isn

Weight(about)Type

Rated testvoltagedynamic

(peak)

Maximumpermissiblevoltage of

transformer

Rated power

Sn

Primarycurrent

Secon-dary

current

Rated current

8 ABB

ISWa

2002,52,5

5; 7,5 5; 7,510

5; 7,510

5; 7,510; 15

5; 7,510; 15

5; 7,510; 15

5; 7,510; 15

5; 7,510; 15

20

5; 7,510; 15

20

5; 7,510; 15

2,5 2,52,5 2,5

2,5; 5 2,5; 57,5

2,5; 57,5; 10

2,5; 57,5; 10

2,5; 57,5; 10

2,5; 57,5; 10

15

2,5; 57,5; 10

15

2,5; 57,5; 10

15

2,5; 57,5; 10

15

2,5; 57,5; 1015; 20

2,5; 57,5; 1015; 20

2,5; 57,5; 1015; 20

5; 7,5;10; 15;20; 30

5; 7,5;10; 15;20; 30

5; 7,5;10; 15;20; 30

5; 7,5;10; 15;20; 30

5; 7,5;10; 15;20; 30

5; 7,5;10; 15;20; 30

1

or

5

1

or

5

250300

400

500

600

750

800

250300

400

500

600

750

800

1000

1200

1500

1600

ISWb

2,5; 52,5

5

5

2,5; 5

60 x lpn

60 x lpn

150 x lpn

150 x lpn

0,72

0,72

3

3

0,8

0,8

Securityfactor forapparat.

DIMENSIONAL DRAWING ISWa – current transformersfor cable max Ø 48 mm or bus bar max 50 x 30 mm

DIMENSIONAL DRAWING ISWb – current transformersfor cable max Ø 48 mm or bus bar max 60 x 30 mm

TRANSFORMERS type INSOATECHNICAL DATA

TypeRatedratio

Ratedpower

Sn

Securityfactor forapparat.

FS

Rated current

short-timethermal

Ith

dynamic(peak)

Maximumpermissiblevoltage of

transformer

Rated testvoltage

Maximaldimensions

of cross--sectionof a bus

Weight(about)

Idyn Um Upclass 3

VA kA kA kV kV mm kgA/A

ABB 9

INSOA

100/54

2

5; 7,5

5; 7,5; 10

5; 7,5; 10

5; 7,5; 10

100/1150/5150/1200/5200/1300/5300/1400/5400/1

60 x lpn 150 x lpn 0,72 3 10 x 30 0,4

DIMENSIONAL DRAWING INSOA – current transformers for cable max mm or bus bar max 30 x 10 mmØ 30

Supporting version Seal wired version

Type

Rated primarycurrent

Ipn

Parametersof secondary winding

Ratedsecondary

currentIsn

Maximalcross

-sectionof busbar

Mass(about)

[kg][mm][kA][kA][A]power; class; FS[A]

Rated current

short-timethermal

dynamic(peak)

TRANSFORMERS type IMR0TECHNICAL DATA

DIMENSIONAL DRAWING IMR0 – current transformers for cable max 18 mm or bus bar max 20 x 5 mmØ

TRANSFORMERS type IMR1TECHNICAL DATA The current transformer type IMR 1 for A = 20,5 mm

Version with secondaryterminals

Version with leaded cables LYc,length approximately 20 cm

Type

Ratedprimarycurrent

Ipn

Parametersof secondary windingfor version A =30 mm

Parametersof secondary windingfor version A =50 mm

Ratedsecondary

currentIsn

Rated testvoltage

Maximalcross

-sectionof busbar

Weight(about)

[kg][mm][kA][kA][kV][A]power; class; FSpower; class; FS[A]

Rated current

short-timethermal

dynamic(peak)

1 VA class 3 FS 5 1

5

1 or 5

2,5 VA class 3 FS 51 VA class 3 FS 5

2,5 VA class 3 FS 51 VA class 0,5 FS 54 VA class 3 FS 5

2,5 VA class 3 FS 52,5 VA class 1 FS 5

2,5 VA class 1 FS 51 VA class 0,5 FS 54 VA class 3 FS 5

2,5 VA class 0,5 FS 5

5 VA class 1 FS 52,5 VA class 0,5 FS 5

4 VA class 0,5 FS 5200

150

100IMR0

75

50

3 60 x lpn

60 x lpn

150 x lpn

150 x lpn

20 x 5

20 x 10

0,4

0,6

Rated testvoltage

Up

[kV]

10 ABB

IMR1a

1 VA class 1 FS 52,5 VA 3 FS 5class

2,5 VA 0,5 FS 55 VA 1 FS 5

classclass

5 VA 0,5 FS 57,5 VA 1 FS 5

classclass

5 VA 0,5 FS 57,5 VA 1 FS 5

classclass

7,5 VA 0,5 FS 510 VA 1 FS 5

classclass

10 VA 0,5 FS 515 VA 1 FS 5

classclass

1 VA 1 FS 52,5 VA 1 FS 5

classclass

75

100

150

200 1 or 5 3

250

300

400

Type

Type

Rated primarycurrent

Ipn

Rated primarycurrent

Ipn

Parametersof secondary winding

Parametersof secondary winding

Ratedsecondary

currentIsn

Ratedsecondary

currentIsn

Maximalcross

-sectionof busbar

Maximalcross

-sectionof busbar

Weight(about)

Weight(about)

[kg]

[kg]

[mm]

[mm]

[kA]

[kA]

[kA]

[kA]

[A]

[A]

power; class; FS

power; class; FS

[A]

[A]

Rated current

Rated current

short-timethermal

short-timethermal

dynamic(peak)

dynamic(peak)

The current transformer type IMR 1 for A = 25,5 mm

60 x lpn

60 x lpn

150 x lpn

150 x lpn

25 x 10

40 x 10

0,6

0,6

Rated testvoltage

Up

Rated testvoltage

Up

[kV]

[kV]

IMR1b

IMR2

1 VA class 1 FS 52,5 VA 3 FS 5class

5 VA class 1 FS 5

2,5 VA 0,5 FS 55 VA 1 FS 5

classclass

10 VA 0,5 FS 510 VA 1 FS 5

classclass

2,5 VA 0,5 FS 55 VA 1 FS 5

classclass

15 VA 0,5 FS 515 VA 1 FS 5

classclass

5 VA 0,5 FS 57,5 VA 1 FS 5

classclass

15 VA 0,5 FS 520 VA 1 FS 5

classclass

7,5 VA 0,5 FS 510 VA 1 FS 5

classclass

15 VA 0,5 FS 520 VA 1 FS 5

classclass

10 VA 0,5 FS 515 VA 1 FS 5

classclass

15 VA 0,5 FS 520 VA 1 FS 5

classclass

15 VA 0,5 FS 520 VA 1 FS 5

classclass

1 VA 0,5 FS 52,5 VA 1 FS 5

classclass

5 VA 0,5 FS 510 VA 1 FS 5

classclass

100

200

150

250

200

300

250

400

1 or 5

1 or 5

3

3

300

500

400

600

500

630

650

DIMENSIONAL DRAWING IMR1a – current transformersfor cable max 18 mm or bus bar max 20 x 10 mmØ

DIMENSIONAL DRAWING IMR1b – current transformersfor cable max 23 mm or bus bar max 25 x 10 mmØ

Version with secondaryterminals

Version with leaded cables LYc,length approximately 20 cm

TRANSFORMERS type IMR2TECHNICAL DATA

ABB 11

For version IMR 1a - the lengthA = 20,5 cm.For version IMR 1b - the lengthA = 25,5 cm.

1YM

A69

9050

-en

Pub

licat

ion

04.2

003

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

max. diameter of conductor 30Ø

DIMENSIONAL DRAWING IMR2 – current transformers for cable max 30 mm or bus bar max 40 x 10 mmØ

Version with secondaryterminals

Version with leaded cables LYc,length approximately 20 cm

ABB Sp. z o.o.Power Technologies Divisionul. Leszno 5906-300 Przasnysz, PolandPhone: (+48 22) 52 52 838, 51 52 831

(+48 29) 75 33 233, 75 33 240Fax: +48 22 51 52 659, +48 29 75 33 327

www.abb.com