Perfect Hertz – Oil Cooled Servo Voltage Stabilizer (10 KVA – 2000 KVA)
Perfect Hertz, a unit of Perfect Generators, offers high-performance Oil Cooled Servo Controlled Voltage Stabilizers ranging from 10 KVA to 2000 KVA. Built for industrial, commercial, and critical operations, these stabilizers deliver consistent voltage supply and complete protection for both indoor and outdoor applications.
Capacity Range: 10 KVA – 2000 KVA
Input Voltage Range (Customizable):
295 – 465V
340 – 480V
360 – 460V
Output Voltage: 380V / 400V / 415V ±1%
Input Frequency: 47 – 53 Hz
Correction Speed: 8 – 70 V/sec
Efficiency: 95% – 98%
Control Module: Digital microcontroller-based (programmable via front panel keypad)
Reset Function: Manual/Auto reset with programmable trip delay
Cooling Type: ONAN (Oil Natural Air Natural)
Metering: Digital (Class 1 accuracy)
Annunciation: LED indicators with audio alarm
Display: LED / LCD (optional)
Protections: Over/Under Voltage, Overload, Short Circuit, Phase Reversal, Single-Phase Prevention, Neutral Failure, Frequency Cut-off, Earth-Neutral Voltage Protection
Circuit Breaker:
MCB built-in up to 30 KVA
MCCB (optional) above 30 KVA
Operating Temperature: 0°C – 45°C
IP Rating: IP40
Cabinet Color: Siemens Grey (RAL 7032)
Standard Compliance: IS 9815




