This manual provides operation instructions, installation guidelines, and technical specifications for the ZKZ3 zero-crossing power adjuster used in…
The ZKZ3 zero-crossing power adjuster is a device designed for controlling constant resistance loads in three-phase two-control or three-phase three-control schemes. It features advanced functions such as cascaded start-up, overcurrent protection, and load undercurrent protection with alarm capabilities. The unit is equipped with an efficient heat dissipation system and offers two output regulation methods: PWM fixed-cycle and CYC variable-cycle zero-crossing. This manual is written in Chinese.
| Power Element | Imported single-phase anti-parallel thyristor module |
|---|---|
| Current Capacity | 40, 80, 150, 225, 300, 400, 500A AC |
| Control Board Power | 220V AC ±10% 50HZ |
| Control Input | 4 ~20mA DC input, receive impedance 120Ω |
| Operating Temperature | -10 ~+40℃ |
| Heat Dissipation Protection | 75℃ temperature switch, ±5℃ |
| Output Resolution | 20ms (one sine wave) |
The device offers PWM fixed-cycle regulation and CYC variable-cycle zero-crossing regulation.
It allows multiple units to start the load with minimal impact on the power grid.
Yes, it can automatically judge if the load is disconnected and trigger an alarm.