Transformer Roller Type

We are making and supplying of Transformer Rollar Type in Chandigarh, India. Details as given below:- TECHNICAL SPECIFICATION Voltage Range- 340-480/415 vac 3A,, A 20% Frequency range- 50Hz, A 5% Hz Phase- Three phase + neutral + GND OUTPUT Voltage Range- 380/400/415 vac, 3A, A 1.5% (adjustable voltage by preset) Frequency Range- Synchronized with the supply frequency (line mode), 50Hz, A 5% Hz Power Factor- > 0.95 Waveform- Sinusoidal pure sine wave/no distortion Phase- Three phase + neutral + GND Overload capacity- 120% - 60s, 200% - 10 s Display- Digital/Analogue I/P & O/P volt meter Protection- Over voltage 253 vac (L-N), Output shutoff after 4-7s delay Low voltage 176 vac (L-N), Output shutoff after 4-7s delay Automatic circuit breaker rated at 130%, Overload capability for heavy start load. Control- ON/OFF-Normal circuit breaker switch, Output voltage selector switch, Power start button, Power stop button Response time- < 35 ms/volt Insulation Resistance- D.C. 1000V a Y 2M IC Features- Compensator & auto self starting after power failure Electrical Strength- 2000 V power frequency for 60 seconds without breakdown & flash over Efficiency- > 98% Ambient Temperature- -20A C to + 50A C Relative Humidity- < 90% (no condensation) Audible noise- 45dB a 55dB at 1 meter Applications:- Air cooled version Life at full load is 15-20 yrs. Negligible losses in full buck-boost condition. 100% duty cycle Self lubricating carbon roller assembly Roller movement is on both side