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Current Transformer (low voltage)PDF

•GENERAL 
Current Transformer is used to transform the high AC current to small easily manageable values. They're connected with the Panel Meter or Relay and they can help to measure the current or protect the equipments. Low voltage current transformers are manufactured as of two types for measuring CT and protection CT. 


•MEASURING CT 

Measuring current transformers are constructed to feed on other low voltage apparatus such as measuring instruments, relays, watt-hour meters (kW meter) and these type of current transformers are mainly used 0.5 and 1 class to transfer the current from highest rated current to rated secondary current.


•PROTECTION CT 

Protection current transformers are constructed to feed the protection relay. These type of current transformer are mainly used 5P. (Customer supplied when required.) 


•REFERENCE STANDARDS 

IEC60044-1, VDE0414-44-1, DINS7414, B53938, 8s7626, EN60044-1.


•TEST VOLTAGE 
3kV AC (per min.) 


•FREQUENCY 

50/60Hz 


•OPERATING TEMPERATURE 

-25-C-+50-C 


•ACCURACY 

Measuring 0.5; 1.0; 3.0 (Special accuracy upon request) 


•BURDEN 
Ranging from 1.5-30VA 


•RATED SECONDARY CURRENT 
5A (1A upon request) 


•RATED PRIMARY CURRENT 
Up to 6000A 


•INSULATION 
Class B for Casing type CT 
Class A for Taping type CT 


•CASING 
Non-flammable, polycarbonate self extinguishing ABS/PC 


•TERMINAL MARKS 
VO to UL94 
Primary Pl & P2(K & L) 
Secondary SI & S2(K & L) 


MSQ Current Transformer

Type

Ratio(A)

Burden(VA)

Turns through core

Class:0.5

Class:1.0

MSQ-30B

5/5

5

7.5

1

10/5

5

7.5

1

15/5

5

7.5

1

20/5

5

7.5

1

25/5

5

7.5

1

30/5

5

7.5

1

50/5

5

7.5

1

60/5

5

7.5

1

100/5

5

7.5

1

150/5

5

7.5

1

200/5

5

7.5

1

150/5

5

7.5

1

300/5

5

7.5

1


Type

Ratio(A)

Burden(VA)

Turns through core

Class:0.5

Class:1.0

MSQ-30

30/5


1.0

1

40/5


1.0

1

50/5


1.0

1

60/5

1

1.0

1

75/5

1.5

1.5

1

80/5

2.5

2.5

1

100/5

5

5

1

150/5

5-10

5-10

1

200/5

5-10

5-10

1

250/5

5-10

5-10

1

300/5

5-10

5-10

1


Type

Ratio(A)

Burden(VA)

Turns through core

Class:0.5

Class:1.0

MSQ-40

100/5

2.5

2.5

1

150/5

3

3

1

200/5

5

5-10

1

250/5

5-10

5-10

1

300/5

5-10

5-10

1

400/5

5-10

5-10

1

500/5

5-10

5-10

1


Type

Ratio(A)

Burden(VA)

Turns through core

Class:0.5

Class:1.0

MSQ-60

250/5

5

5

1

300/5

5

5

1

400/5

5-10

5-10

1

500/5

5-10

5-10

1

600/5

10-15

10-15

1

750/5

10-15

10-15

1

800/5

10-15

10-15

1

1000/5

15

15

1


Type

Ratio(A)

Burden(VA)

Turns through core

Class:0.5

Class:1.0

MSQ-100

1500/5

15

15

1

1600/5

15

15

1

2000/5

15

15

1

2250/5

15

15

1

2500/5

15

15

1

3000/5

15

15

1



RCT Current Transformer

Type

Ratio(A)

Burden(VA)

Turns through core

Class:0.5

Class:1.0

RCT-25

75/5

2.5

2.5

1

100/5

2.5

2.5

1


Type

Ratio(A)

Burden(VA)

Turns through core

Class:0.5

Class:1.0

RCT-35

75/5

2.5

2.5

1

100/5

2.5

2.5

1

150/5

5

5

1

200/5

5

5

1

250/5

5

5

1

300/5

5

5

1


Type

Ratio(A)

Burden(VA)

Turns through core

Class:0.5

Class:1.0

RCT-60

400/5

5

5

1

500/5

10

10

1

600/5

10

10

1

750/5

10

10

1

800/5

10

10

1

1000/5

10

10

1

1200/5

10

10

1


Type

Ratio(A)

Burden(VA)

Turns through core

Class:0.5

Class:1.0

RCT-90

800/5

10

10

1

1000/5

10

10

1

1200/5

10

10

1

1500/5

10

10

1

1600/5

10

10

1


Type

Ratio(A)

Burden(VA)

Turns through core

Class:0.5

Class:1.0

RCT-110

1500/5

10

10

1

1600/5

10

10

1

2000/5

20

20

1

2500/5

20

20

1

3000/5

20

20

1



DP Current Transformer

Type 

Ratio(A)

Burden(VA)

Weight(kg)

Class:3.0

Class:1.0

Class:0.5

DP-23

100/5

1.5

-

-

0.88

150/5

2.5

-

-

0.88

200/5


2.5

-

0.88

250/5


2.5

-

0.88

300/5


2.5

2.5

0.88

400/5


2.5

2.5

0.88


Type 

Ratio(A)

Burden(VA)

Weight(kg)

Class:3.0

Class:1.0

Class:0.5

DP-58

250/5


2.5

2.5

0.98

300/5


2.5

2.5

0.98

400/5


2.5

2.5

0.98

500/5


5

2.5

0.98

600/5


5

2.5

0.98

750/5


6.25

2.5

0.98

800/5


7.5

2.5

0.98

1000/5


10

5

0.98


Type 

Ratio(A)

Burden(VA)

Weight(kg)

Class:3.0

Class:1.0

Class:0.5

DP-88

250/5


3.75

1.5

1.10

300/5


5

1.5

1.10

400/5


5

1.5

1.10

500/5


5

2.5

1.10

600/5


5

2.5

1.10

750/5


5

2.5

1.10

800/5


5

2.5

1.10

1000/5


10

5

1.10

1600/5


15

5

1.10


Type 

Ratio(A)

Burden(VA)

Weight(kg)

Class:3.0

Class:1.0

Class:0.5

DP-812

500/5


10

2.5

1.20

600/5


10

2.5

1.20

750/5


10

2.5

1.20

800/5


10

2.5

1.20

1000/5


15

5

1.20

1200/5


20

6.25

1.20

1250/5


20

7.5

1.20

1500/5


20

7.5

1.20

2000/5


20

10

1.20

2500/5


20

15

1.20


Type 

Ratio(A)

Burden(VA)

Weight(kg)

Class:3.0

Class:1.0

Class:0.5

DP-816

1000/5


20

10

3.26

1500/5


25

15

3.26

2000/5


25

15

3.26

2500/5


25

15

3.26

3000/5


30

20

3.26

4000/5


30

20

3.26

5000/5


30

20

3.26


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Product Inquiry
If you would like a quotation or further information about this product, please fill in the form below and we will reply to you soon. You can also contact with Mr.Peter through Whatsapp # 0086-15958776000 or Wechat # GREEGOO directly, thank you.
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