ZCT404 zero phase current transformer potential transformer

Electrical Specification

(Customized is available)

Rated Current250A
DC Resistance at 25℃20±3Ω
Dielectric Withstanding     Voltage(Hi-pot)2500Vrms
Output Voltage Vo17mV

Two conditions for generating zero-sequence current:

  1. Whether it is a longitudinal fault, a lateral fault, or asymmetry between normal and abnormal conditions, as long as there is a zero-sequence voltage;
  2. The zero-sequence current has a path.
    The above two conditions are indispensable. Because of the lack of the first one, there is no source; the lack of the second one is what we usually discuss “the question of whether there must be current if there is voltage.
    Zero sequence formula: 3U0=UA+UB+UC, 3I0=IA+IB+IC
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