bids are invited for repair and overhauling service - diesel generators- dg sets; greaves power ; no; buyer premises (a) gen o/p – 19 kva/15.2kw (b) voltage - 415 (3 phase) / 230v (single phase) (c) frequency – 50 hz (d) power factor – 0.8 lagging (e) alternator type brushless, self-exited insulation class -class h (f) voltage regulation + 1% (with avr) (g) cooling – air cooled (h) no of pole – 4 pole (j) speed(rpm)- 1500(for 50 hz) (k) protection – ip23 (l) avr fitted for stable voltage output. efficiency approx 86- 90% excitation system self excited, rotation field. (k) total harmonic distortion (thd) < 5 % total quantity :