Product overview

The three-phase thyristor trigger is designed and produced using military-grade PCB and imported microcontroller. It is used to trigger the thyristor to realize the voltage regulation function. It has a high degree of output linearization, a low output starting point, and can achieve stepless regulation of the load voltage. For transformer primary side voltage regulation, welding, temperature control, dimming, charging, excitation, electroplating, electrolysis, water treatment, etc.

Product performance parameters

The trigger waveform has good symmetry, control accuracy is ￡5%, high linearization and stable operation. The triggering power is large and can directly trigger thyristors within 3000A. Various control signals, potentiometer (10K), DC1-5V, DC2_10V, DC4-20mA. Equipped with a soft start function, the soft start on power-up protects the thyristor and load from impact (please specify when ordering) and set the delay time from 0 to 165 seconds. The design is novel and unique, with no phase sequence restriction for three phases, simple wiring and easy maintenance. The main circuit and control circuit are fully isolated, safe and reliable. Sprayed conformal paint has a transparent protective film with excellent moisture-proof, dust-proof and anti-corrosion properties. The trigger is equipped with the function of blocking the trigger pulse due to event or fault. For example, the pulse is blocked when the equipment is turned on, so that the thyristor of the main circuit is completely shut down.

Installation dimensions

Three-phase fully controlled AC phase-shifting and voltage-regulating wiring

Three-phase half-controlled AC phase-shifting and voltage-regulating wiring

Three-phase fully controlled rectifier phase-shifted voltage regulation wiring

Three-phase semi-controlled rectifier phase-shifting voltage regulation wiring

Control terminal wiring diagram

troubleshooting

1. If the system indicator light does not light up, there may be no power supply or the chip is not working.

2. The system indicator light is on, but the thyristor has no output. Check whether the load is connected. If the load is not connected, there will be no output.

3. The system indicator light is on, and the output using analog signals (1-5v, 2-10v, 4-20mA) cannot be adjusted. You should confirm whether the load is connected. If there is no load, there will be no output. You can first use a 10K potentiometer to manually control and debug the load. Connect a 100W-200W bulb for testing