ST30 SCR Firing Card/ Thyristor Power Control Board / Power controller

Product Details

ST30 three-phase rectification thyristor trigger regulator board adopts 32-bit industrial grade high-performance microprocessor, high digital precision quality design, support network remote control and on-site control mode. The fuzzy-PID parameter is open-ended, which integrates open-loop voltage regulation, closed-loop constant voltage and constant current in one, to control the thyristor to achieve constant voltage current limiting or constant current voltage limiting. The fault alarm and interface parameters are displayed on the LED digital tube menu, and parameters are automatically stored after setting. The control board (regulator) has the functions such as phase loss protection, power-on soft start, soft shutdown, constant current output, constant voltage output, overvoltage protection, overcurrent protection, short circuit protection, and working status indication. It has three-phase full-control bridge rectification and thyristor anti-parallel AC triggering mode, which can trigger thyristor below 1000A, suitable for resistive load and, inductive load, capacitive load, transformer primary side and other types of loads which adjust by voltage and current regulation in various fields of industry. It has been widely used in electrolytic and plating devices, battery charge and discharge devices, three-phase thyristor power supply devices, electric heating temperature control devices, arc discharge control and other equipment.

Technical specifications:
◆ Working power supply: 380Vac ±15%, 50/60HZ
◆ Main circuit working voltage: 380Vac ±15%, 50/60HZ
◆ Voltage adjustment range: 0 ~ 100%
◆ Current adjustment range: 0 ~ 100%
◆ Phase shift range: 0~178°
◆ Adjust output resolution: 1/4000
◆ Stability accuracy: better than ±1%
◆ Trigger current: ≥ 600mA
◆ Trigger capacity: ≤ 1000A one-way thyristor
◆ PID dynamic response time: ≤ 50mS
◆ Overshoot: ≤ 10%
◆ Input signal: DC0-5V, DC0-10V, 0-10mA, 4-20mA, 10K potentiometer adjustment
◆ Three-phase trigger imbalance: ≤ 0.3°
◆ Applicable load: Resistive, inductive, capacitive, transformer load and other loads
◆ Alarm relay contact capacity: 250Vac/10A
◆ Dielectric strength: 3500 VRMS
◆ Ambient (working) temperature: -20°C~ 60°C
◆ Working Relative humidity: ≤ 90% RH (no frost)
◆ Indoor installation requirements: no flammable, no explosive, no corrosive gas, no conductive dust, and vibration should be less than 0.5G
◆ Dimensions: 190 * 130 * 38mm
◆ Dimensions between install holes: 178* 118mm
◆ Weight: 0.8KG

ST30 meet the following standards:
IEC60947-4-2: Low-voltage switchgear and controlgear. Part 4-2: Contactors and motor-starters. AC semiconductor motor Controllers and starters.
GB14048.6-1998: Low-voltage switchgear and controlgear Part 4-2: Contactors and motor starters AC semiconductor motor controllers and starters.
GB3797-89: Electronic Control Equipment Part II - Electronic Control Equipment with Electronic Devices.
IEC61000-4: Electromagnetic compatibility, test and measurement technology.
IEC65: Safety of household and similar general purpose electronic and related equipment powered by grid power.