High Precision Automatic AC Voltage Regulator SVC (TND/TNS)

The SVC (TND/TNS) series high precision fully automatic AC voltage regulator is designed to keep critical equipment running safely when the mains voltage fluctuates. Built on a servo driven contact voltage regulation structure with all copper coils, it delivers rapid compensation (≤10ms) and clean power with no additional waveform distortion. The front panel meters and indicator lights allow easy monitoring of input/output status, while the ventilated metal chassis supports reliable heat dissipation for long term operation. Available in single phase (TND) and three phase (TNS) versions, it is widely used for precision instruments, medical equipment, public facilities, and communication systems.

Key Features

• High Precision Stabilization: Regulated output accuracy of 220V ±2.5% (TND) or 380V ±3% (TNS) to protect sensitive loads.
• Fast Automatic Response: ≤10ms rapid adjustment helps handle sudden voltage rises/drops with stable performance.
• Low Distortion Output: No additional waveform distortion, helping maintain power quality for electronics and control systems.
• All Copper Coils: Copper windings improve durability and efficiency, extending service life.
• Protection & Safety: Multi protection functions (over/under voltage, overcurrent, short circuit) with clear indicators for safe operation (model dependent).

Typical Specifications (Reference)

• Models: TND (single phase), TNS (three phase)
• Rated Capacity: 0.5kVA–50kVA (TND); 1.5kVA–100kVA (TNS)
• Operating Voltage Range: 160V–250V (TND); 160V–250V phase / 277V–433V line (three phase four wire, TNS)
• Output Voltage: 220V ±2.5% (TND; 0.5–3kVA option 110V ±6%); 380V ±3% (TNS)
• Frequency: 50Hz/60Hz
• Noise: <60dB(A) (within 1 meter)
• Operating Environment: 15°C to +40°C; altitude <1000m; relative humidity <60%