Tender For Supply and delivery at site of 250 KVA distribution Transformer outdoor typeITEM LIST :- (1) Supply and delivery at site of 250 KVA distribution Transformer outdoor type 11/0.433 KV, 3 phase04 wire 50/c, ONAN cooled, delta/ star,insulation level-HV/28/25/KV/KVP & LV/3/KV/KVP, Off circuit tap changer,range -+5% yo 5% in steps, tapping provided on HV rated current ( line current) HV 13.132 A, LV 347.80 A, temp.rise top/50 degree C, winding / 55 degree C, ambient temp./50 degree C, weight ( approx) core & winding withclamps 524 kg, tank & fitting 348kg,oil -285ltr(242kg),total weight-1114kg,dimension of transformer, L-1500mm,B-1265mm, H-1525mm,current density: HV 3 to 3.5 sqmm, LV-3 to 3.5sqmm, flux density at principal voltage &normal frequency-1.7 ( max) tesla, copper double wound transformer complete with first fill of transformer oil andwith standard fittings ( CPRI type tested ), tests: routine test ratio test, polarity, phase angle error measuurement,BDV of oil, LR values, polarization index, dielectric discharge, winding resistance, open & short circuit test,impedance test, seperate souce voltage test induced over voltage test, magnetic balance test, vector group test,zero sequence impedence test, tan delta & capacnance of transformer IS: 2026, the supplier shall furnish the typetest report as per IS from NABL, accredited lab.Make:- Crompton Greaves Ltd, BHEL, AREVA, AEG, ABB asper IS: 2026.
