Product Profile of Three Phase Servo Stabilizer

Power electronics offers three phase servo stabilizers. These stabilizers are an effective solution to the problem of voltage fluctuations. They are designed to give a stabilized output within 1 % of the normal value. These servo regulators are available in two types namely balanced load and unbalanced load regulators. The balanced load type have 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 unbalanced load stabilizers have separate motorised auto-ransformers for each phase which are independently controlled to ensure desired output. The output wave form is completely distortion free and the regulation is unaffected by power factor. Various models are available corresponding to different input/output and kv a ratings conforming to is:`9815. Oil-cooled stabilizers are available for higher capacites as also ip-55 construction for outdoor use.

Key Features of Three Phase Servo Stabilizer

• Fast rate of correction - more than 35V / sec. [line to neutral] for unbalanced load and 16V / sec for balanced load application
• More than 95% efficiency
• Plug-in type control cards for easy serviceability Visual warning against very high or low input voltages Ruggedised contruction, castor mounted for easy movement
• No waveform distortion
• Auto/Manual facility of operation from front-panel controls Conforming to IS: 9815-1981
• Auto/Manual Control: This control is provided to manually vary the output in the case of control card failure. However, under normal circumstances, this switch should always be on Auto position.
• Metering: A/ C voltmeter with selector switch to read input & output voltages.
• Visual Indications: L.E.D.`s to indicate input "HIGH" & "LOW" and output "ON".
• Under-voltage & over-voltage, audio, vision tripping alarm.
• Overload protection by means of M.C.B wit audio vision alarm
• Digital voltmeter
• Digital! Analog ammeter
• Single phasing preventer
• Protection fuses
• The company also offers warranty on products against manufacturing defects for a period of 12 months from the date of original despatch provided that the goods are returned carriage paid. Service Contract facility available after the warranty period.
• The company also offers other products like:
• UPS System
• Inverter
• Isolation Transformer
• CVT`s