bids are invited for testing service for on-board /commissioned equipment/ instrument related to plant carrying out residual life analysis test for 40 mva, 132/33 kv (telk make, y.o.m.-1995) transformer installed at 220kv s/s moradabad having life around more than 30 years under etd-ii, moradabad. •insulation resistance (ir value) •polarization index value (pi value) •magnetic balance test •magnetizing current test •voltage ratio test •turn ratio test •vector group •checking of prv, oti/wti and buchhloz relay •short circuit test •tan delta and capacitance test of winding •tan delta and capacitance test of bushing •di-electric frequency response analysis (dirana) •sweep frequency response analysis (sfra) total quantity :