transformer zero sequence impedance calculation ZCT404

High sensitivity and close to zero load shift
Excellent characteristics in temperature and balance

Small change of output voltage after large DC impulse

A variety of configuration and output characteristics
Used for leakage current detection



Transformer zero sequence impedance calculation ZCT404 


Zero phase current transformer which detects the difference between the currents flowing in a number of conductors. The current flowing to a load must equal the current flowing back from the load. If this is not the case, a potentially dangerous residual current will be flowing somewhere in the installation.

Wire lead type zero phase current transformers are easy integrated into standard PCB sub-assemblies that are compliant with IEC61008, IEC61009 and IEC62423 requirements.


Rated Current 250A
DC Resistance at 25℃ 20±3Ω
Dielectric Withstanding     Voltage(Hi-pot) 2500Vrms
Output Voltage Vo 17mV


Electrical Characteristic

Item

Rated Current(A)

Output Voltage
Vo(mv)

Test Conditions

Over Leakage
Characterstics

Temperature
Characteristics
-35~80℃

Dimensions
(mm)

 

 

 

 

 

 

ID

OD

HT

ZCT201

30

4-5.1

lin=10mA RL=510

-10%~0%

10%Max

5.9

16

6.5

ZCT202

30

5.1-6

lin=8mA RL=750

-10%~0%

10%Max

5.8

15.2

6.1

ZCT203

50

17-21

lin=22.5mA RL=1k

-10%~0%

10%Max

9.2

21

7.3

ZCT204

30

12-15

lin=22.5mA RL=1k

-10%~0%

10%Max

9.8

20.6

6.5

ZTC205

30

12.5-15.5

lin=8mA RL=4.7k

-10%~0%

10%Max

9.3

21.3

7.2

ZCT206

50

17-21

lin=22.5mA RL=1k

-10%~0%

10%Max

12.3

26

10

ZCT207

30

7.5-8.5

lin=25mA RL=1k

-10%~0%

10%Max

15.4

29.8

10

ZCT208

60

10.2-12.5

lin=20mA RL=680

-10%~0%

10%Max

7.2

19.4

7.7

ZCT209

50

8-11.2

lin=11.25mA RL=1k

-10%~0%

10%Max

7

17.2

7

ZCT210

50

8-11.2

lin=11.25mA RL=1k

-10%~0%

10%Max

6.8

16.9

7.9

ZCT211

50

8-11.2

lin=11.25mA RL=1k

-10%~0%

10%Max

10.6

25.4

8

ZCT212

60

10.2-12.5

lin=20mA RL=680

-10%~0%

10%Max

11

23.5

8

ZCT213

60

≥300

lin=25mA RL=1k

-10%~0%

10%Max

9.4

23.8

12.7

ZCT218

60

10.2--12.5

lin=25mA RL=680

-10%~0%

10%Max

7.5

18.9

7.6

ZCT220

60

≥300

lin=25mA RL=47k

-10%~0%

10%Max

10.1

24

11.5

ZCT225

60

≥300

lin=25mA RL=47k

-10%~0%

10%Max

10.9

25.5

9

ZCT401

100

17-21

lin=22.5mA RL=1k

-10%~0%

10%Max

15

29.2

10

ZCT402

100

6.3-7.5

lin=20mA RL=370

-10%~0%

10%Max

17.5

35.9

8.8

ZCT403

250

17-21

lin=22.5mA,RL=1k

-10%~0%

10%Max

29

51

12

ZCT404

250

17-21

lin=22.5mA,RL=1k

-10%~0%

10%Max

32

55.6

12

ZCT405

250

17-21

lin=22.5mA,RL=1k

-10%~0%

10%Max

42

80*69

20

ZCT406

630

17-21

lin=25mA,RL=1k

-10%~0%

10%Max

51.3

84

26

ZCT407

800

17-21

lin=22.5mA,RL=1k

-10%~0%

10%Max

51

96*89

23

ZCT408

100

125-150

lin=500mA,RL=150

-10%~0%

10%Max

19

36

11.5

ZCT409

225

125-150

lin=500mA,RL=150

-10%~0%

10%Max

24

42

12

ZCT410

400

125-150

lin=500mA,RL=150

-10%~0%

10%Max

43

90*74

16

ZCT411

800

120-151

lin=500mA,RL=150

-10%~0%

10%Max

53

96*89

23


Output voltage and Turns / resistor graph



Testing



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