50 kVA Three-Phase Voltage Stabilizer Automatic Voltage Stabilizer with 380V ±15% Input Range and 0.5s Responding Speed

VC-50KVA three-phase automatic voltage stabilizer

The BLAZING POWER SVC-50KVA is a three-phase automatic AC voltage stabilizer designed for 380 V power systems. With a rated capacity of 50 kVA, it is intended to reduce the effect of unstable utility voltage on industrial equipment, commercial facilities and other critical three-phase electrical loads.

When the incoming voltage remains above or below its normal level or fluctuates repeatedly, the stabilizer automatically regulates the voltage and maintains a more stable output for downstream equipment.

The SVC-50KVA uses a floor-standing cabinet design and is suitable for installation in electrical rooms, workshops, production facilities and other industrial power environments.

Technical specifications

* Parameters marked with an asterisk were used as reference values in the preliminary draft and should be confirmed against the final SVC-50KVA datasheet, nameplate or factory test report before publication.

The approximate rated line current at 50 kVA and three-phase 380 V is:

I = 50,000 ÷ (√3 × 380) ≈ 76 A

This is the theoretical rated current and does not include additional capacity required for motor starting current or other high-inrush loads.

Product description

The SVC-50KVA continuously monitors the incoming three-phase supply and automatically adjusts the output when voltage deviation occurs. Its three-phase 380 V input and three-phase 380 V output configuration makes it suitable for common industrial distribution systems.

The 50 kVA capacity is suitable for medium-sized three-phase loads and can also be installed upstream of selected UPS systems or industrial equipment where incoming voltage variation needs to be controlled.

A voltage stabilizer regulates voltage but does not provide stored backup power. If the utility supply is completely interrupted, the stabilizer cannot continue supplying the load. Where both voltage regulation and uninterrupted power are required, the stabilizer can be used together with an online UPS after proper system sizing.

Applications

The SVC-50KVA can be used with industrial machinery, CNC equipment, automation systems, commercial facilities, communication equipment, laboratory instruments, medical support equipment, printing machinery, packaging equipment and other three-phase 380 V electrical loads.

For motors, compressors, pumps and other loads with high starting current, stabilizer sizing should not be based only on the rated equipment power. Starting current, actual load ratio, incoming voltage range and future expansion should also be considered.

Installation and sizing

Before installation, the actual three-phase supply voltage, wiring configuration, maximum load current and voltage fluctuation range should be confirmed.

Suitable upstream circuit protection and cable sizes should be selected, and adequate ventilation and maintenance clearance should be provided around the stabilizer.

When the stabilizer is installed upstream of a UPS, its capacity should be selected according to the UPS rating, rectifier input characteristics, battery charging demand and actual site power conditions rather than by simply matching the UPS kVA rating on a 1:1 basis.