1:Programming 2:SCR firing control&output regulation 3:Parameter&Alarm Indication 4:Interfacing with external PC or PLC

Summary

The series product adopts SCR three-phase bridge silicon controlled rectifier, DSP computer digital constant current excitation control, slipping sub synchronous detection, excitation is accurate and reliable, output response speed is quick, no overshoot. It can be widely used as synchronous motor excitation power supply of synchronous motor traction system such as large ball grinder, rolling mill, gas compressor; ore crusher, large wind machine and drainage pump etc

Main Technical Features and Performance Index:

1. Operation mode: local/remote operation mode can be chosen

2. Output control mode: constant current excitation and constant voltage excitation output control mode

3. Constant current excitation control accuracy≤±1%,constant voltage excitation control accuracy≤±1%

4. Rectifier mode: three-phase bridge SCR 6 pulse rectifier

5. De- excitation control mode: SCR automatic detection contactless De- excitation control

6. with full voltage or step-down starting control function

7. Main controller: DSP computer digital trigger, current and voltage close-loop regulating control with quick response speed and no overshoot

8. Excitation mode: synchronous motor rotor slip speed detection, clockwise zero automatic excitation, forced synchronizing. The starting of motor is stable, excitation is accurate and reliable

9. Main protection functions: Protection of lack phase, overvoltage, under voltage, quick fuse and alarm protection of AC power supply, output over excitation, lack excitation and magnetic loss protection, output short circuit and instantaneous overload protection, protection of SCR rectifier component, rectifier transformer and over temperature and overheat of bus copper bar, overheating of wind machine, too high water pressure and low block trigger pulse

10. Touch screen and PLC operation control system an be chosen according to customer’s requirement

11. RS485 remote communication interface can be chosen according to customer’s requirement, remote monitor can be realized by Internet CAN bus, MODBUS bus and PROFIBUS bus communication protocol

12. Real-time display, restore and record working current, working voltage, excitation current-time curve and excitation voltage-time curve

KGLF10-Series Computer Control Synchronous Motor Excitation Device