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.
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Rated Current
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250A
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DC Resistance at 25℃
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20±3Ω
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Dielectric Withstanding Voltage(Hi-pot)
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2500Vrms
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Output Voltage Vo
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17mV
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Electrical Characteristic
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Item
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Rated Current(A)
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Output Voltage
Vo(mv)
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Test Conditions
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Over Leakage
Characterstics
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Temperature
Characteristics
-35~80℃
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Dimensions
(mm)
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ID
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OD
|
HT
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ZCT201
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30
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4-5.1
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lin=10mA RL=510
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-10%~0%
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10%Max
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5.9
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16
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6.5
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ZCT202
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30
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5.1-6
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lin=8mA RL=750
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-10%~0%
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10%Max
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5.8
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15.2
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6.1
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ZCT203
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50
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17-21
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lin=22.5mA RL=1k
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-10%~0%
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10%Max
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9.2
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21
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7.3
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ZCT204
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30
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12-15
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lin=22.5mA RL=1k
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-10%~0%
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10%Max
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9.8
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20.6
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6.5
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ZTC205
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30
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12.5-15.5
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lin=8mA RL=4.7k
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-10%~0%
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10%Max
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9.3
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21.3
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7.2
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ZCT206
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50
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17-21
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lin=22.5mA RL=1k
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-10%~0%
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10%Max
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12.3
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26
|
10
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ZCT207
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30
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7.5-8.5
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lin=25mA RL=1k
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-10%~0%
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10%Max
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15.4
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29.8
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10
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ZCT208
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60
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10.2-12.5
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lin=20mA RL=680
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-10%~0%
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10%Max
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7.2
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19.4
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7.7
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ZCT209
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50
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8-11.2
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lin=11.25mA RL=1k
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-10%~0%
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10%Max
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7
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17.2
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7
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ZCT210
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50
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8-11.2
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lin=11.25mA RL=1k
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-10%~0%
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10%Max
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6.8
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16.9
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7.9
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ZCT211
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50
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8-11.2
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lin=11.25mA RL=1k
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-10%~0%
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10%Max
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10.6
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25.4
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8
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ZCT212
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60
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10.2-12.5
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lin=20mA RL=680
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-10%~0%
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10%Max
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11
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23.5
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8
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ZCT213
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60
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≥300
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lin=25mA RL=1k
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-10%~0%
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10%Max
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9.4
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23.8
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12.7
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ZCT218
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60
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10.2--12.5
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lin=25mA RL=680
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-10%~0%
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10%Max
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7.5
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18.9
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7.6
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ZCT220
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60
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≥300
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lin=25mA RL=47k
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-10%~0%
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10%Max
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10.1
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24
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11.5
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ZCT225
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60
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≥300
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lin=25mA RL=47k
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-10%~0%
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10%Max
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10.9
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25.5
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9
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ZCT401
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100
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17-21
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lin=22.5mA RL=1k
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-10%~0%
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10%Max
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15
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29.2
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10
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ZCT402
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100
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6.3-7.5
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lin=20mA RL=370
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-10%~0%
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10%Max
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17.5
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35.9
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8.8
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ZCT403
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250
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17-21
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lin=22.5mA,RL=1k
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-10%~0%
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10%Max
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29
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51
|
12
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ZCT404
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250
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17-21
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lin=22.5mA,RL=1k
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-10%~0%
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10%Max
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32
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55.6
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12
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ZCT405
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250
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17-21
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lin=22.5mA,RL=1k
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-10%~0%
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10%Max
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42
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80*69
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20
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ZCT406
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630
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17-21
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lin=25mA,RL=1k
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-10%~0%
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10%Max
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51.3
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84
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26
|
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ZCT407
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800
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17-21
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lin=22.5mA,RL=1k
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-10%~0%
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10%Max
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51
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96*89
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23
|
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ZCT408
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100
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125-150
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lin=500mA,RL=150
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-10%~0%
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10%Max
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19
|
36
|
11.5
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ZCT409
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225
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125-150
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lin=500mA,RL=150
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-10%~0%
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10%Max
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24
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42
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12
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ZCT410
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400
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125-150
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lin=500mA,RL=150
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-10%~0%
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10%Max
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43
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90*74
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16
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ZCT411
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800
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120-151
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lin=500mA,RL=150
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-10%~0%
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10%Max
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53
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96*89
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23
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Output voltage and Turns / resistor graph
Testing
Packing and Shipping
