SCR Power Controller Systems
Analog / digital Power control
On-site SCR power controller testing and repair services. Assistance available for retrofitting controller and spare components.
Power controller applications:
Glass melt furnace boosting
Metal casting & melt holding furnaces
Electric ovens
Glow Bar Furnace
Rotary Hearth Furnace
We provide aftermarket support for every manufacturer of power controller
Please see the reviews of our clients about the value of our aftermarket power controller service.
Zero-cross control
With historically lower initial and operational costs, the zero-cross SCR / thryistor power controller provides robust on-off control for heaters and inductively matched loads such as transformers in the case of electric boosting of glass furnaces. Turning power on and off at the instant of zero voltage also reduces the total harmonic distortion caused by the controller which reduces electromagnetic interference and utility imposed charges for operating low power factor equipment
Zero-cross control waveform
Phase angle control waveform
Phase-angle control
By individually regulating the conduction angle of each half-cycle, phase angle regulation provides precise control of AC power. Controlling SCR / thyristor turn-on has the advantage of limiting current, providing in-rush current control for large inductive loads, and regulating the average output voltage and AC bias.