SURVAS servo voltage regulators are an effective solution to the problem of voltage fluctuations. They are designed to give a stabilized output within +/- 1% of the nominal value. These servo voltage regulators are available in two configurations, namely Balanced load and unbalanced load regulators. The balance load type has a sensing circuit which detects the voltage variation in one phase and moves the motor such that three phase output is in the specified limit. The unbalance load stabilizers have separate motorized auto- transformers for each phase which are independently controlled to ensure desired output. The output waveform is completely distortion free and the regulation is unaffected by power factor. Various models are available corresponding to different input/output and KVA ratings.
Automatic High/Low voltage cut-off. Overload & Short-circuit protection.
Audio alarm at extreme input voltages.
Line-noise and surge suppression network.
Separate line current meter with rotary switch.
Single-phasing preventer for Balanced load application
Ultra isolation transformer at output (star-delta optional)
TYPICAL APPLICATIONS :
Plastic Moulding Machines
Spark Erosion and Wire-Cut Machines. Mainframe computers.
Communication equipments like Radio and TV transmitters, Space applications. Operation Theaters, large X-ray machines, CAT Scanners.
Air conditioning plants.
Production plants, general heating and lighting equipments. Large testing laboratories.
Elevators and Escalators.
Centralized stabilization of domestic power.
Textile machinery like Autoconers, draw Frames and Power looms.
Diamond cutting / polishing machines.