ZCT507 PCB Pin type zero phase current transformer products

Electrical Specification

(Customized is available)

Rated Current30A
DC Resistance at 25℃26±4Ω
Dielectric Withstanding      Voltage(Hi-pot)2500Vrms
Output Voltage Vo13±3mV

Conditions of use for zero sequence current transformers

A current transformer can be installed on each of the three-phase lines, or three-phase conductors can be passed through a zero-sequence current transformer together, or a zero-sequence current transformer can be installed on the neutral line N to use it to detect three phases. Vector sum of current.

For the specific application of zero-sequence current protection, a current transformer (CT) can be installed on each of the three-phase lines, or three-phase conductors can be passed through a zero-sequence CT together, or a zero-sequence CT can be installed on the neutral line N. These CTs are used to detect the vector sum of three-phase current, that is, the zero-sequence current Io, IA+IB+IC=IO, when the three-phase load connected to the line is fully balanced (no ground fault, and the leakage current of the line and electrical equipment is not considered ), IO=0; when the three-phase load connected to the line is unbalanced, then IO=IN, and the zero-sequence current at this time is the unbalanced current IN; when a ground fault occurs in a phase, a single-phase ground must be generated The fault current Id, the zero sequence current detected at this time IO=IN+Id, is the vector sum of the three-phase unbalanced current and the single-phase ground current.

ItemRated Current(A)Output Voltage
Vo(mv)
Test ConditionsOver Leakage
Characterstics
Temperature
Characteristics
-35℃~80℃
Dimensions
(mm)
Click PN For DetailsIDODHT
ZCT501308-14lin=30mA,RL=1kΩ¸-10%~0%10%Max6.817.37
ZCT502306.3-7.3lin=22.5mA RL=1kΩ¸-10%~0%10%Max6.818.27.2
ZCT503207.5-10.5lin=11.25mA RL=1kΩ¸-10%~0%10%Max5.515.46
ZCT5053017-21lin=22.5mA RL=1kΩ¸-10%~0%10%Max9.320.97.2
ZCT5063017-21lin=22.5mA RL=1kΩ¸-10%~0%10%Max5179.5
ZCT5073025-30.5lin=20mA RL=1kΩ¸-10%~0%10%Max618.610
ZCT511204.8-5.1lin=20mA RL=1kΩ¸-10%~0%10%Max6.817.57.8
ZCT515303.2-4lin=25mA RL=330Ω¸-10%~0%10%Max8.1186.5
ZCT516406.3-7.3lin=22.5mA RL=1kΩ¸-10%~0%10%Max7.11719.1
ZCT5195017-22lin=11mA,RL=2kΩ¸-10%~0%10%Max9238.3
ZCT5205020-24lin=20mA RL=1kΩ¸-10%~0%10%Max1226.711
ZCT5264025-30lin=25mA RL=1kΩ¸-10%~0%10%Max5.819.37.8
ZCT528307.5-12lin=30mA,RL=1kΩ¸-10%~0%10%Max9.320.97.5
ZCT534406.4-7.5lin=20mA RL=1kΩ¸-10%~0%10%Max6.817.46.5
ZCT538303.6-3.8lin=500mA,RL=150Ω¸-10%~0%10%Max5.515.45.3
ZCT5415012-13lin=25mA RL=330Ω¸-10%~0%10%Max9228.3
ZCT543203.5-4.5lin=20mA,RL=370Ω¸-10%~0%10%Max--6.4
ZCT5473015-18lin=500mA,RL=150Ω¸-10%~0%10%Max--17
ZCT5483013.2-17.8lin=11mA,RL=360Ω¸-10%~0%10%Max1957.5