TAN Delta testing of transformer winding and bushings, DGA /BDV/PPM testing of T/F oil, PD testing of 220 KV CT, CVTs, timing test of 132 KV/220 KV SF6 CBs and Analysis of 220/132 KV and 132/33 KV transformers, CT /CVTs and CBs at various 220 and 132

Following testing works are to be conducted for health monitring of various 220/132 KV & 132/33 KV Power Transformers ( HV & LV Bushing and winding ) at 132 KV S/S Aurai, 132 KV S/S Gopiganj, 132 KV S/S Kachhawa, 132 KV S/S Bhadohi and 132 KV S/S Chauri

132 KV Sub-Station Aurai

Tan Delta testing of all HV & LV bushing and winding of 132/33 KV Power Transformers (40MVA T/F-I Accurate make,40MVA T/F-II Aditya make,63 MVA T/F TAL make)

132 KV Sub-Station Gopiganj

Tan Delta testing of all HV & LV bushing and winding of 132/33 KV Power Transformers (40MVA T/F-I Accurate make,40MVA T/F-II ECE make, 63MVA T/F TAL make)

132 KV Sub-Station Kachhawa

Tan Delta testing of all HV & LV bushing and winding of 132/33 KV Power Transformers ( 40MVA T/F Accurate make & 40 MVA T/F Atlanta make)

132 KV Sub-Station Bhadohi

Tan Delta testing of all HV & LV bushing and winding of 132/33 KV Power Transformers (63 MVA T/F-I IMP make.63MVA T/F-II TAL make,20MVA T/F PME make)

132 KV Sub-Station Chauri

Tan Delta testing of all HV & LV bushing and winding of 132/33 KV Power Transformers (40MVA T/F-I ECE make, 40MVA T/F-II Atlanta make)

220KV GIS Bhadohi

Tan Delta testing of all HV & LV bushing and winding of 132/33 KV Power Transformers (40MVA T/F-I & 40MVA T/F-II TAL make)

Tan Delta testing of all HV & LV bushing and winding of220/132 KV Power Transformers ( 200MVA T/F-I TAL Repaired & 200MVA T/F-II Abirami repaired both are aditya make)

132 KV Sub-Station Robertsganj

Tan Delta testing of all HV & LV bushing and winding of 132/33 KV Power Transformers (63 MVA T/F-I Aditya make. 63 MVA T/F-II Atlantamake.)

132 KV Sub-Station Pasahi

Tan Delta testing of all HV & LV bushing and winding of 132/33 KV Power Transformers (40MVA T/F-I, BBL make. 40MVA T/F-II Techincal associate make.)

132 KV Sub-Station Dalla

Tan Delta testing of all HV & LV bushing and winding of 132/33 KV Power Transformers (40MVA T/F-I BBL make. 40MVA T/F-II BBL make.)

132 KV Sub-Station Bina

Tan Delta testing of all HV & LV bushing and winding of 132/33 KV Power Transformers (40MVA T/F- PME make. 20MVA T/F-II GEC make & 20 MVA T/F -III NGF make).

220 KV Sub-Station Robertsganj

Tan Delta testing of all HV & LV bushing and winding of 132/33 KV Power Transformers (160 MVA T/F-I Areva make. 160 MVA T/F-II BBL make.

220 KV substation Mirzapur

Tan delta testing of all HV & LV bushing and winding of 220/132 KV 160 MVA T/F-I (EMCO MAKE) 160 MVA T/F-II (BBL MAKE) installed at 220 KV S/S Mirzapur

Tan delta testing of all HV & LV bushing and winding of 132/33 KV 20 MVA T/F-I (PME MAKE) and 20 MVA T/F-II (PME MAKE) installed at 220 KV S/S Mirzapur

132 KV substation Lalganj

Tan delta testing of all HV & LV bushing and winding of 132/33 KV 40 MVA T/F-II (ACCURATE MAKE) installed at 132 KV S/S Lalganj

132 KV substation Chhanbey

Tan delta testing of all HV & LV bushing and winding of 132/33 KV 40 MVA T/F-II (TECHNICAL ASSOCIATE MAKE) installed at 132 KV S/S Chhanbey

132KV Substation Jigna

Tan delta testing of all HV & LV bushing and winding of 132/33 KV 63 MVA T/F-II (PME MAKE) installed at 132 KV S/S Jigna

132KV Substation Mirzapur

Tan delta testing of all HV & LV bushing and winding of 132/33 KV 63 MVA T/F-I (BBL MAKE),63MVA T/F-II(TAL MAKE) and 40 MVA T/F (TAL MAKE) installed at 220 KV S/S Mirzapur

Collection of transformer oil sample as per standard practice in proper & air tight steel sampling bottle from bottom of T/F and OLTC tank of each T/Fs installed at following sub-station under ETD-Mirzapur. (Sample bottle will be provided by contractor on their own cost)

132KV Substation Gurudevnagar 132KV Substation Jigna 132KV Substation Mirzapur 220KV S/S Mirzapur 132KV S/S Chhanbey 132KV S/S Lalganj

Dissolved gas analysis (IEC : 60567)

Breakdown voltage (IS:6792)

Water content (PPM) (IEC:60567)

Measurement of closing and tripping time and contact resistance measurement of all Breaker of 132 KV & 220 KV SF6 CB of different make at different substation.

At 132 KV S/S Robertsganj At 132 KV S/S Pasahi At 132 KV S/S Dalla At 132 KV S/S Bina At 220 KV S/S Robertsganj

Following testing works are to be conducted for health monitring of various Current Transformers and Potential Transformer in 220 KV bays at 220 KV Substation Robertsganj.Partial Discharge test by both EHF (Extra High Frequency) and HF (High Frequency) methods with help of duly calibrated test kit. The work also includes the cost of carriage and operation of test kit including preparation and submission of test results in specified formats after the completion of tests. The test results should clearly mention the health of CTs and CVTs/PTs suggestion for Action taken regarding the same

220 KV Sub-Station Robertsganj

245 KV current Transformers of various 220 KV Bays.

220 KV Sub-Station Mirzapur

245 KV Current Transformer of various 220 KV bays

245 KV CVTs of various 220 KV bays