Kerala State Electricity Board Tender

Part A- Supply.

Design, manufacture and supply of 180Nos.new class ‘F’ insulated VPI diamond type coils with existing coil dimensions and profile in all respect suitable for 55MW (with 10% COL at 0.9PF) loading capability. The following tests shall be carried out during the manufacturing process. i) Dimensional check ii) Coil Resistance Measurement iii) Inter strand IR value test at110VAC for 3sec as ESI Standard 44-7, June 1978 iv) Inter-turn insulation test as per IEEE522:2004 using HVHF test set v) IR value at 5KV before and after HV AC test for1minute vi) HV AC test at 27 kVfor1minute as per BS4999: Part60:1976 vii) Tan delta test at 2.2 KV, 4.4 KV, 6.6 KV, 8.8 kV and 11 KV as per ESI Std 44-7, June 1978 and IEEE Std 286-2000 viii) Partial Discharge Test as per IEEE Std 1434 ix) Voltage Endurance Test on a random sample as per IEEE Std 1043 x) Thermal Cycling Test on a random sample as per IEEEStd1310

Supply of spare 20Nos new Class-F insulated VPI diamond-type coils with dimensions and profile as mentioned in item 1.01