3 kVA Single Phase Variac Voltage Regulator

3 kVA Single Phase Variac Voltage Regulator Features

• 3 kVA and single phase.
• Better protection, high quality workmanship.
• 12A rated output current and 0-250V rated output voltage, 220V rated input voltage.
• Widely used in various power supply sites with frequency 50Hz.
• High quality and safety variac voltage regulator.

3 kVA Single Phase Variac Voltage Regulator Specifications

3 kVA Single Phase Variac Voltage Regulator Detail

Tips: Fault causes of voltage regulator

• The transition resistance in the auxiliary contact is broken during the switching process.
• As the contact roller is stuck, the tap switch stops at the transition position, thus causing the inter turn short circuit to burn out.
• The tap switch is not well sealed, water enters and thus causing short circuit between phases.
• Tap switch tank is short of oil.
• Crossing fault current during voltage regulation.