Build your own Thyristor Power Controller/ Power Switches with Libratherm Thyristor Triggering Cards.

Thyristor power controllers and power switches are extensively used in the industry for controlling power delivery. They regulate and switch the AC operated loads and deliver precise amounts of power to heaters, motors, transformers, etc.

The principle behind controlling power delivery is the thyristor triggering mechanism. There are two main types of techniques:

1. Phase Angle Control: This technique controls power by only allowing the desired percentage of the AC power supply to be delivered to the end device.
2. Zero Crossover: As the name suggests, power is controlled by turning the power on and off when the AC signal crosses the zero mark. This provides for a noiseless, transient free switching of power.

For more information on choosing which technique to use, Click Here

OEMs use Libratherm Thyristor Triggering Cards to integrate AC power regulators and power switches using SCR modules into their offered solutions. Cards are available in single-phase, two-phase and three-phase models. These cards support all industrial standard SCR devices / SCR modules of any brand ranging from 25A to 1000A, making them an OEM friendly solution.

Using Libratherm Thyristor Triggering Cards, OEMs have build power control solutions for the following:

• HVAC systems
• Drying Ovens
• Annealing furnace
• Tempering furnace
• Aluminium Melting and Holding Furnace
• Aging Ovens
• Electrical Upsetting machine
• Resistance Welding machine
• Metal Gathering machine
• Magnetic and Electromagnetic Crack Detector
• Electromagnetic Vibrator control
• Hydraulic Sintering Press (Low Voltage High Current Heating)
• Cold Roll Mills Sheet metal spot welding
• AC to DC rectifiers for Electroplating Plants
• Effluent / Sewage Treatment Plants
• Battery Chargers
• Constant Voltage/Constant Current Power Supply
• SCOTT-T Transformer heating system
• Real Time Power Factor Control using Capacitor Bank Switching

Power control systems may experience failure due to breakdown in the supporting electronics. However it has been observed that the thyristor device (SCR devices / SCR modules) are in good condition. Libratherm Thyristor Triggering Cards are compatible with thyristor devices of any make. This makes them fully integratable with existing power control solutions. This allows us to replace the damaged electronics and revive the power control systems without having to reinvest in expensive thyristor devices.