HT-AVR or High Tension-Automatic Voltage Regulators are the high-tension stabilizers that protect electrical equipment from irregularities of voltage. These voltage regulators supply a continuous and stable input voltage. We are involved in manufacturing a wide range of HT-Automatic Voltage Regulators.

HT-AVR are used to get stable input voltage, irrespective of the voltage received from electricity authorities. These regulators not only prevent electrical equipment from fluctuating and irregular Voltages but also the transformer and thus increasing its life and efficiency.


A Built in AVR is a combined unit of HT AVR and Step Down Transformer. Together it gives you stabilized LV output even when the HT voltage input is.


Salient Features:

  • High Efficiency
  • Low maintenance
  • Compact Design
  • Fast Response Time
Technical Specification

Ratings Up-to 5000 kVA
Voltage Class 8-12kV ,9-12kV , 9.5-12kV , 28-35kV,32-35 kV (Other as specified)
Output Regulation ±1% or ± 0.5%
Cooling Natural Air / Oil
Acceptable Frequency 47-53Hz
Correction Speed 6-18 V per second
Response time 10ms
Efficiency More than 98%
Additional Facility Manual Operation
Waveform Distortion Nil
Duty Cycle 24 hours continuous on 100% load
Control Circuit Micro Controller based, Plug in Card for on-line serviceability
Control Panel Auto /Manual Mode Selection Switch Manual Output Voltage Adjustment Switch Output Voltage Adjustment knob ± 8% of the seat voltage Voltmeter Input /Output reading Selection Switch Low /High Input Indicator Output Indicator