H.T. Automatic Voltage Regulator (Stabilizer) to be installed on the incoming side of the Transformer and provides stabilize input voltage to the Distribution Transformers.

Advantages of Installing H.T. Automatic Voltage Controller:

• 1. H.T. AutomaticVoltage Stabilizer supplies rated Stabilized Voltage to the transformer, there by the utilization of the transformer will be up to full rated capacity and is protected from High/ Low Voltage Fluctuation.
• 2. Life of the Transformers are increased by installing Stabilizer on HT side.
• 3. Where Nos. of Distribution Transformer are installed in a plant, you can install only one H.T. Automatic Voltage Controller (Regulator). 
• 4. losses of transformer will reduce after installation of HT Automatic Voltage Controller.
• 5. Shorter Payback period.
• 6. In Higher Capacity, it is technically advisable to install H.T. Automatic Voltage Controller because current in L.T. Stabilizer is Very High.

Construction of H.T. AVR:

Global's H.T. AVR primarily consist of the following:

• A. Step Down Transformer
• B. Linear, plus/ minus type vertical Voltage Regulator.
• C. Buck/ Boost Transformer.
• D. Electronic Control Circuit.

The item (A) & (C) will be housed inside a sheet tank fitted with cooling radiators and mounted on uni-directional rollers and item (B) will be housed in separate tank.