ZCT218 Lead Wire Type single phase current transformer

Electrical Specification

(Customized is available)

Rated Current60A
DC Resistance at 25℃60±4Ω
Dielectric Withstanding     Voltage(Hi-pot)2500Vrms
Output Voltage Vo10-12.5mV

The working principle of the zero-sequence current transformer

The zero-sequence current transformer is mainly composed of primary winding, secondary winding, annular iron core, wiring cable and shell in use. Its primary winding is a primary three-phase or single-phase conductor cable passing through the annular inner hole of the transformer. In the application of three-phase cables, the primary current of the zero-sequence CT is the vector sum of the primary three-phase currents 0

when the current is balanced. When single-phase grounding or three-phase unbalance occurs in the three-phase power system, the primary current vector sum of the zero-sequence CT is not 0, then the secondary winding of the zero-sequence current transformer will have current output, and this current can be Supply protection devices to protect and monitor power cables and large equipment through the operation of the protection devices.

ItemRated Current(A)Output Voltage
Vo(mv)
Test ConditionsOver Leakage
Characterstics
Temperature
Characteristics
-35~80℃
Dimensions
(mm)
Click PN For DetailsIDODHT
ZCT201304-5.1lin=10mA RL=510-10%~0%10%Max5.9166.5
ZCT202305.1-6lin=8mA RL=750-10%~0%10%Max5.815.26.1
ZCT2035017-21lin=22.5mA RL=1k-10%~0%10%Max9.2217.3
ZCT2043012-15lin=22.5mA RL=1k-10%~0%10%Max9.820.66.5
ZCT2053012.5-15.5lin=8mA RL=4.7k-10%~0%10%Max9.321.37.2
ZCT2065017-21lin=22.5mA RL=1k-10%~0%10%Max12.32610
ZCT207307.5-8.5lin=25mA RL=1k-10%~0%10%Max15.429.810
ZCT2086010.2-12.5lin=20mA RL=680-10%~0%10%Max7.219.47.7
ZCT209508-11.2lin=11.25mA RL=1k-10%~0%10%Max717.27
ZCT210508-11.2lin=11.25mA RL=1k-10%~0%10%Max6.816.97.9
ZCT211508-11.2lin=11.25mA RL=1k-10%~0%10%Max10.625.48
ZCT2126010.2-12.5lin=20mA RL=680-10%~0%10%Max1123.58
ZCT21360≥300lin=25mA RL=1k-10%~0%10%Max9.423.812.7
ZCT2186010.2--12.5lin=25mA RL=680-10%~0%10%Max7.518.97.6
ZCT22060≥300lin=25mA RL=47k-10%~0%10%Max10.12411.5
ZCT22560≥300lin=25mA RL=47k-10%~0%10%Max10.925.59
ZCT40110017-21lin=22.5mA RL=1k-10%~0%10%Max1529.210
ZCT4021006.3-7.5lin=20mA RL=370-10%~0%10%Max17.535.98.8
ZCT40325017-21lin=22.5mA,RL=1k-10%~0%10%Max295112
ZCT40425017-21lin=22.5mA,RL=1k-10%~0%10%Max3255.612
ZCT40525017-21lin=22.5mA,RL=1k-10%~0%10%Max4280*6920
ZCT40663017-21lin=25mA,RL=1k-10%~0%10%Max51.38426
ZCT40780017-21lin=22.5mA,RL=1k-10%~0%10%Max5196*8923
ZCT408100125-150lin=500mA,RL=150-10%~0%10%Max193611.5
ZCT409225125-150lin=500mA,RL=150-10%~0%10%Max244212
ZCT410400125-150lin=500mA,RL=150-10%~0%10%Max4390*7416
ZCT411800120-151lin=500mA,RL=150-10%~0%10%Max5396*8923