MANUFACTURING, TESTING, SUPPLY AND ERECTION and COMMISSIONING OF 3 NOs. 25 MVA, 11/132KV GENERATOR TRANSFORMERS FOR MUKERIAN HYDEL PROJECT, TALWARA, PUNJAB

Amount

Part I : Supply

25 MVA, 11/132KV, ONAN cooled, oil immersed outdoor type generator transformer suitable for 3-Phase, 50 C/S frequency, Delta-star connected in accordance with ISS Vector group YD 11 with neutral solidly earthed on HV side. The transformer will be fitted with off ckt tap changer of Easun-MR/ TELK/ BHEL/ NGEF/ CGL/ CTR/ Paragon Associates/ Alwaye make Type 66 KV, 300 Amps rating for voltage variation on HV side to give 142.5 KV, 139 KV, 135.5KV, 132 KV and 128.5 KV with LV constant. Percentage impedance on 25 MVA base at 75 deg.C shall be as 10% + tolerance as per IS-2026 Part-II latest edition. The transformer shall be able to operate continuously for 10% overload capacity. The transformer shall be dispatched oil filled. Transformer oil (Napthenic base) for radiators& conservators etc. alongwith 10% extra quantity shall be dispatched directly in non-returnable epoxy coated steel drums. The transformer shall be complete with all fittings and accessories as per specification. The following extra spares with each transformer shall form part of supplies

HV line end bushing complete

LV line end bushing complete

HV neutral end bushing complete

Complete sets of gaskets

WTI with remote indicator

Magnetic oil level gauge

OTI with remote indicator

Silica gel container along with Silicagel (for one time filling) for main tank

Pressure Relief Valve

Buchholz relay

Dial type thermometer for OTI

Switches, fuses, relays for electric control ckt.

Short circuit test charges for 1 no. GT (If applicable)

Part II : Erection and commissioning

Erection, Commissioning of 25 MVA, 11/132KV, ONAN cooled, oil immersed outdoor type generator transformer.

Bidder Name

Amount in Words

Bharat Bijlee Ltd.

Transformers and Rectifiers (India) Limited

Bharat Bijlee Ltd.