Product Name: KGPS Medium Frequency Power Supply
Product introduction: Thyristor intermediate frequency power supply and thyristor intermediate frequency power supply are static frequency conversion devices that use thyristor components to convert power frequency three-phase AC power supply into intermediate frequency single-phase AC power supply, mainly used for induction heating. Induction melting KGPS medium frequency furnace and other occasions that require medium frequency power supply. Due to its high overall efficiency, light weight, low noise, rapid start stop, automatic frequency tracking of load parameter changes, and convenient power adjustment, it has a series of advantages.
The main circuit of this device adopts an "AC-DC-AC" conversion system, which consists of a three-phase fully controlled bridge rectifier circuit, an inductor filter circuit, and a parallel inverter circuit. The thyristor intermediate frequency power supply components are cooled with water, and their control system is composed of integrated circuits with stable performance and reliable start-up. The zero voltage or sweep start method used is convenient. Easy to maintain and economical, especially suitable for metal melting, heating, and heat treatment in medium frequency furnaces.
Technical specifications:
1. Rated input of equipment: three-phase AC power, frequency of 50 Hz (60 Hz), line voltage of 380 V (high-voltage equipment includes various types such as 660V, 750V, 950V, 1050V, 1250V, 1450V, etc.)
2. Rated output of equipment: Under rated voltage or rated load, the output power can be smoothly and continuously adjusted, with an adjustment range of 5% to... of the rated power;
3. Can prevent overvoltage during switch operation (such as QF opening and closing, RS melting, etc.);
4. When the inverter bridge experiences a direct short circuit, the protection system immediately activates, causing the device to automatically shut down and issue an overcurrent indicator signal - illuminating the overcurrent indicator light in the instrument box;
5. If the output current exceeds the set value, the protection system will also automatically shut down the device and issue an overcurrent indicator signal - light up the overcurrent indicator light in the instrument box;
6. When the working pressure of the water cooling system is below a certain value, this machine will automatically shut down and light up the water pressure indicator light on the panel;
7. This machine is equipped with current and voltage limiting components to limit the input current and output voltage within the set values.
