supply of three phase air cooled unbalanced modelthree phase air cooled unbalanced model,three phase air cooled unbalanced model micro controlled voltage stabilizer (mcvs) of capa city: 75kva having the following specifications:- input voltage: 340v to 480v, output voltage: 415v +/- 1% (p-p), line frequency: 47-53 hz, type: unbalanced supply and load conditions, efficiency: >98.5%, output voltage regulation: +/- 0.5%, speed of correction: 60v per sec., waveform distortion: nil, effect of load po wer factor: nil, ambient temperature: 0-40 deg c, duty cycle: continuous, mode of system: fully automati c/manual, system construction: as per is 9815:1994, protections: input & output overload protection with mcb/mccb, output low & high voltage protection, single phase & phase reversal protection, output electroni c overload protection, led indication for input & output, digital lcd display showing input/output voltage, c urrent, frequency and other programmable parameters, enclosure: ip 32 mounting-floor mounted/free on w heel, warranty:12 months, make: servomax/ consul/ neel/ aplab/ unity/ neelkanth only. [ warranty period: 12 months after the date of delivery ] ] => limited