ZCT502 PCB electrical zero sequence current sense transformer
Electrical Specification
(Customized is available)
| Rated Current | 30A |
| DC Resistance at 25℃ | 49±3Ω |
| Dielectric Withstanding Voltage(Hi-pot) | 2500Vrms |
| Output Voltage Vo | ＞6.3mV |
Zero phase current transformer:
The primary coil of the zero current transformer passes through the three-phase conductor of the measured circuit. Under normal conditions, since the vector sum of the three-phase currents is zero, no magnetic flux will be generated in the iron core, so there will be no induced current in the secondary coil.
When a single-phase ground fault occurs in the protected circuit, the vector sum of the three-phase currents is no longer zero. At this time, an induced magnetic flux will be generated in the iron core of the transformer, and there will be an induced current in the secondary coil, thereby starting the relay to make The protective device operates.
| Item | Rated Current(A) | Output Voltage Vo(mv) | Test Conditions | Over Leakage Characterstics | Temperature Characteristics -35℃~80℃ | Dimensions (mm) |
||
|---|---|---|---|---|---|---|---|---|
| Click PN For Details | ID | OD | HT | |||||
| ZCT501 | 30 | 8-14 | lin=30mA,RL=1kΩ¸ | -10%~0% | 10%Max | 6.8 | 17.3 | 7 |
| ZCT502 | 30 | 6.3-7.3 | lin=22.5mA RL=1kΩ¸ | -10%~0% | 10%Max | 6.8 | 18.2 | 7.2 |
| ZCT503 | 20 | 7.5-10.5 | lin=11.25mA RL=1kΩ¸ | -10%~0% | 10%Max | 5.5 | 15.4 | 6 |
| ZCT505 | 30 | 17-21 | lin=22.5mA RL=1kΩ¸ | -10%~0% | 10%Max | 9.3 | 20.9 | 7.2 |
| ZCT506 | 30 | 17-21 | lin=22.5mA RL=1kΩ¸ | -10%~0% | 10%Max | 5 | 17 | 9.5 |
| ZCT507 | 30 | 25-30.5 | lin=20mA RL=1kΩ¸ | -10%~0% | 10%Max | 6 | 18.6 | 10 |
| ZCT511 | 20 | 4.8-5.1 | lin=20mA RL=1kΩ¸ | -10%~0% | 10%Max | 6.8 | 17.5 | 7.8 |
| ZCT515 | 30 | 3.2-4 | lin=25mA RL=330Ω¸ | -10%~0% | 10%Max | 8.1 | 18 | 6.5 |
| ZCT516 | 40 | 6.3-7.3 | lin=22.5mA RL=1kΩ¸ | -10%~0% | 10%Max | 7.1 | 17 | 19.1 |
| ZCT519 | 50 | 17-22 | lin=11mA,RL=2kΩ¸ | -10%~0% | 10%Max | 9 | 23 | 8.3 |
| ZCT520 | 50 | 20-24 | lin=20mA RL=1kΩ¸ | -10%~0% | 10%Max | 12 | 26.7 | 11 |
| ZCT526 | 40 | 25-30 | lin=25mA RL=1kΩ¸ | -10%~0% | 10%Max | 5.8 | 19.3 | 7.8 |
| ZCT528 | 30 | 7.5-12 | lin=30mA,RL=1kΩ¸ | -10%~0% | 10%Max | 9.3 | 20.9 | 7.5 |
| ZCT534 | 40 | 6.4-7.5 | lin=20mA RL=1kΩ¸ | -10%~0% | 10%Max | 6.8 | 17.4 | 6.5 |
| ZCT538 | 30 | 3.6-3.8 | lin=500mA,RL=150Ω¸ | -10%~0% | 10%Max | 5.5 | 15.4 | 5.3 |
| ZCT541 | 50 | 12-13 | lin=25mA RL=330Ω¸ | -10%~0% | 10%Max | 9 | 22 | 8.3 |
| ZCT543 | 20 | 3.5-4.5 | lin=20mA,RL=370Ω¸ | -10%~0% | 10%Max | - | - | 6.4 |
| ZCT547 | 30 | 15-18 | lin=500mA,RL=150Ω¸ | -10%~0% | 10%Max | - | - | 17 |
| ZCT548 | 30 | 13.2-17.8 | lin=11mA,RL=360Ω¸ | -10%~0% | 10%Max | 19 | 5 | 7.5 |