ZCT408 zero sequence transformer for electrical safety

Electrical Specification

(Customized is available)

Rated Current100A
DC Resistance at 25℃13±3Ω
Dielectric Withstanding     Voltage(Hi-pot)2500Vrms
Output Voltage Vo25-30mV

Error of current transformer
The current transformer is mainly composed of three parts: iron core, primary coil and secondary coil. Due to the existence of the iron core reluctance, the current transformer must consume a small part of the current for excitation in the process of changing the current, so as to magnetize the iron core, thereby generating induced potential and secondary current in the secondary coil, and the error of the current transformer It is caused by the excitation current consumed by the iron core.

Due to the existence of excitation current and iron loss, the difference between the primary current and the secondary current of the current transformer is a vector, and the error includes ratio difference and phase angle difference.

The numerical error of the primary current and the secondary current is called the ratio difference when expressed as a percentage in the relative error method.

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