220-66-kv-xmer-on-line-nifes-r4-sept-08 - Gujarat Electricity Board

GETCO/E/TS – XMER01power/R4 Sept 08
Wc= Copper losses in KW; Wp = Auxiliary loss in KW.
1.39 PENALTY FOR HIGHER LOSSES:
In case of order if the figures of losses measured during tests or in service are found
to be higher than the figures guaranteed at the option of the GETCO will be rejected
or accepted with the reduction in price as under
1.40 REJECTION:
For Iron loss = Rs. 1,60,000/- per KW
For Copper loss = Rs. 70,000/- per KW
For Auxiliary loss = Rs. 60,000/- per kW
1.40.1 The Purchaser may reject transformer, if any of the following conditions during or
service arises:
i) No load losses or load losses exceed the guaranteed value.
ii) Impedance value exceeds the guaranteed value by + 10% or more.
iii) Oil or winding temperature rise exceeds the specified value by 5 deg. C.
iv) Transformer fails on impulse test.
v) Transformer fails on power frequency voltage withstand test.
vi) The difference is impedance values of any two phase during single phase short
circuit impedance test exceeds 2% of the average value guaranteed by the
manufacturer / contractor.
vii) Transformer is proved to have been manufactured not in accordance with
agreed specification.
1.40.2 The Purchaser reserves the right to retain the rejected transformer and use it until
the bidder replaces the defective transformer by a new transformer, within a
reasonable period, at no extra cost to the GETCO. In such case the transportation,
loading, unloading on plinth, inspection, erection, testing & commissioning charges
shall be bourn by the bidder.
1.41 TRAINING TO ENGINEERS:
1.41.1 The successful bidder will be required to grant facilities for training to minimum two
Engineers to be nominated by the GETCO, at bidders’ works particularly in the
manufacture, assembly, operation and maintenance of transformer. The bidder
should please state the general condition of training and number of Engineers and
duration of training for whom such training will be arranged by him.
1.41.2 Bidder shall at his cost arrange for the above training facilities and in addition shall
bear all living expenses. The Purchaser shall only pay to and fro passage of the
trainees. Bidder shall indicate following in the prices schedule.
a) The lump sum amount of training for the above training facilities.
b) Price reduction / addition for number of trainees specified herein.
1.42 Guarantee period will be reckoned from the date of receipt of 100 % accessories
and not from the date of receipt of main tank only.
Sign and Seal of Bidder Page 37 of 87