High Precision Auto Voltage Regulator

The TND(SVC) and TNS series are designed to deliver stable AC output voltage when grid voltage is unstable or load conditions change. The regulator uses a contact-type autotransformer, servo motor, and automatic control circuit to adjust the carbon brush position and bring the output voltage back to the rated value.

This High Precision Auto Voltage regulator is suitable for power environments that require accurate voltage control, fast adjustment, and dependable equipment protection. It helps reduce the impact of voltage fluctuation on electrical devices while maintaining low waveform distortion and reliable long-term operation.

• High output accuracy: Provides 220V +/-3% or 110V +/-3% output for single phase models and 380V +/-3% output for three phase models.
• Fast automatic adjustment: Regulation time is less than 1 second when the input voltage changes by 10%.
• Single and three phase coverage: TND(SVC) models support single phase applications, while TNS models support three phase power systems.
• Stable waveform quality: Designed with no additional waveform distortion, helping protect sensitive electrical equipment.
• Reliable protection design: Includes delay, overvoltage, and undervoltage protection functions for safer operation.
• Efficient operation: Efficiency is greater than 90%, supporting continuous use in commercial and industrial environments.
• Wide model range: Available from compact low-power units to cabinet-type high-capacity models for larger loads.

The TND(SVC) single phase series includes compact tabletop models and vertical cabinet models for higher power ratings. The TNS three phase series covers small and medium-capacity electrical systems, with cabinet-style models for larger loads.

This High Precision Auto Voltage regulator is suitable for locations where a stable AC power supply is required to keep equipment running normally and reduce downtime caused by voltage fluctuation.

• Office equipment, communication equipment, and commercial electrical systems
• Medical equipment, laboratory instruments, and precision devices
• Industrial control equipment and production machinery
• Lighting systems, household appliances, and small commercial facilities
• Three phase distribution systems for workshops, buildings, and electrical rooms
• OEM equipment requiring stable input voltage protection

When selecting a model, confirm the phase type, rated capacity, input voltage range, output voltage, load type, installation method, and whether tabletop or cabinet-style construction is preferred. For motor loads or equipment with high starting current, choose a suitable capacity margin to improve stability and service life.

Need help choosing a TND(SVC) or TNS automatic voltage regulator? Send your required phase type, capacity, input voltage range, output voltage, application, and order quantity. Our team can provide technical guidance, model recommendations, and competitive quotation options.