Tender For Annual Electrical Maintenance Works At Captive Power Plant, Hwp(M), Bhadradri Kothagudem-Telangana

Tender For Annual Electrical Maintenance Works At Captive Power Plant, Hwp ( M ) - 1 Preventive Maintenance Of Circuit Breakers Of Following Voltage Level And Type: 2 220Kv Sf6 3 33 Kv Vcb 4 11 Kv Vcb 5 415V Acb 6 Preventive Maintenance Of 220Kv Isolators 7 Preventive Maintenance Of 220Kv Switchyard Bay Marshalling Box 8 Preventive Maintenance Of Switchgear Panel Of Following Voltage Level: 9 33Kv 10 11Kv 11 415V 12 Preventive Maintenance Of Transformers Of Following Rating: 13 220 / 33Kv, 40Mva 14 33 / 11Kv, 40Mva 15 33 / 6.6Kv, 16Mva 16 11 / 6.6Kv, 8Mva 17 Below 8Mva 18 Oil Topup In Transformers Of Following Rating: 19 8Mva And Above 20 8Mva And Below 21 Replacement / Drying Of Silica Gel Of Transformer 22 Arresting Of Oil Leak From Transformer Of Following Rating: 23 220 / 33Kv, 40Mva 24 33 / 11Kv, 40Mva 25 33 / 6.6Kv, 16Mva 26 11 / 6.6Kv, 8Mva 27 Below 8Mva 28 Transformer Oil Sample Collection And Testing ( For Bdv ) As Per Relevant Indian Standard. Bdv Kit Will Be Provided By Department 29 Disconnection Of Power Cables From Transformer ( Rated 40 Mva ) Terminals ( After Opening Terminal Box Cover ) For The Purpose Of Measuring Of Ir Value And Subsequent Connection And Closing Of Terminal Boxes. Measurement Of Ir Value Covered In Other Item. 30 Disconnection Of Ground Connection From Transformer ( Rated 40 Mva ) Neutral Terminals For The Purpose Of Measuring Of Ir Value And Subsequent Connection. Removal And Reconnection Of Any Other Ground Connections In The Circuit Are Also Covered In This Item. Measurement Of Ir Value Covered In Other Item. 31 Disconnection Of Power Cables From Transformer ( Rated Between 8Mva And 40Mva ) Terminals ( After Opening Terminal Box Cover ) / Bus Bar Terminals For The Purpose Of Measuring Of Ir Value And Subsequent Connection And Closing Of Terminal Boxes. Measurement Of Ir Value Covered In Other Item 32 Disconnection Of Ground Connections From Transformer ( Rated Between 8Mva And 40 Mva ) Neutral Terminals For The Purpose Of Measuring Of Ir Value And Subsequent Connection. Removal And Reconnection Of Any Other Ground Connections In The Circuit Are Also Covered In This Item. Measurement Of Ir Value Covered In Other Item. 33 Disconnection Of Power Cables From Transformer ( Rated 8 Mva And Less ) Terminals ( After Opening Terminal Box Cover ) For The Purpose Of Measuring Of Ir Value And Subsequent Connection And Closing Of Terminal Boxes. Measurement Of Ir Value Covered In Other Item. 34 Disconnection Of Ground Connections From Transformer ( Rated 8Mva And Less ) Neutral Terminals For The Purpose Of Measuring Of Ir Value And Subsequent Connection. Removal And Reconnection Of Any Other Ground Connections In The Circuit Are Also Covered In This Item. Measurement Of Ir Value Covered In Other Item. 35 Removal Of Existing Oil Temperature Indicator / Winding Temperature Indicator Of Transformer And Replacing It With Spare By Proper Mounting. Connection And Disconnection Of Indicator Terminals From Marshalling Box Is In The Scope Of Contractor 36 Measurement Of Insulation Resistance Value / Polarisation Index Value Of Transformer Winding / Power Cable / Circuit Breaker / Bus Bar / Motor Etc. 37 Measurement Of Dielectric Disspitation Factor / Capacitance Value Of Insulations Of 220Kv Ct / Pt / Transformer / Oip Bushing 38 Troubleshooting Of Control / Protective / Power Circuits Of 220Kv Circuit Breaker / 220Kv Isolator / 220 / 33Kv 40Mva Transformer / 220Kv Ct / 220Kv Pt Etc. 39 Troubleshooting Of Control / Protective / Power Circuits Of 33Kv Switchgear / 33Kv Breakers / 33Kv-11Kv-6.6Kv Voltage Level Transformers Etc. 40 Troubleshooting Of Control / Protective / Power Circuits Of 6.6Kv-415V Voltage Level Transformer / 6.6Kv Motor Etc. 41 Troubleshooting Of Control / Protective / Power Circuits Of 415V Circuit Breaker / 415V Transformer / 415V Switchgear / 415V Motor Etc. 42 Troubleshooting Of Control / Protective Circuits Of 220V Dc / 48V / 24V Dc System 43 Installing Semaphore Switch / Annunciator / Ammeter / Voltmeter / Energy Meter / Synchronising Selector Switch / Protective Relay / Selector Switch / Indication Lamp / Contactor / Overload / Mcb / Fuse Holder / Tpn Switch Etc By Cutting The Panel Door To Suitable Size, Proper Mounting As Per Instructions Of Eic And Proper Terminations Of Wires With Lugs 44 Replacement Of Fuse Holder / Mcb / Semaphore Switch / Annunciator / Ammeter / Voltmeter / Energy Meter / Synchronising Selector Switch / Protective Relay / Selector Switch / Indication Lamp / Contactor / Overload / Tpn Switch Etc With Spare And Proper Terminations Of Wires Same As Before 45 Improvement Of Ir Value To Satisfactory Value ( As Directed By Eic ) Of 33Kv Outgoing Cubicle By Hot Air Blowing / Heating With Luminaires Etc. 46 Improvement Of Ir Value Of 415V Motor To Satisfactory Value ( As Directed By Eic ) By Hot Air Blowing In Terminal Box / Heating With Luminaires Etc. 47 Preventive Maintenance Of Ht Motor 48 Condition Monitoring Of Ht Motor 49 Improvement Of Ir Value Of 6.6Kv Motor To Satisfactory Value ( As Directed By Eic ) By Hot Air Blowing In Terminal Box / Heating With Lumiaires Etc. 50 Preventive Maintenance Of Lt Motor And Its Module 51 Condition Monitoring Of Lt Motor 52 Temporary Power Supply Connection / Disconnection At Different Location ( Material Collection From Plant Store And Safe Return To Plant In Contractor Scope ) 53 Condition Monitoring Of Lt Module 54 Shifting Of Cts / Pts / Lt Motors / Control Transformers / Testing Kits Etc. From Dps Store / E-U Store To Site / Site To Store When Required 55 Removal Of Connection Of 220Kv Overhead Conductors From Oip Bushings For Testing Of Bushings And Re-Termination After Completion Of Testing 56 Pre-Monsoon Checks Of Transformers As Per Checklist 57 Disconnection Of Cables From Motors / Overhead Lines / Tbs Etc. For Troubleshooting Etc. And Reconnecting After Completion Of Troubleshooting 58 Supply Of Paint And Painting Of The Surface Of Cable Tray / Panel / Motor / Exhaust Fan Etc. Minimum Quantity Of Synthetic Enamel Smoke Grey Paint To Be Supplied:15 Litres

Sr No	CorrigendumDate	Corrignedum	CorrigendumType	NewSubmissionDate
1	05-May-2023	Bid Auto Extn Corrigendum	Bid Auto Extn Corrigendum	12-05-2023

Refer document

INR 18060.0 /-

INR 9.03 Lakhs /-

Name of Work: AnnualElectrical Maintenance Works at Captive Power Plant, HWP(M)

Sl. No.	Item Description
1	Preventive Maintenance of circuit breakers of following voltage level and type:
2	220kV SF6
3	33 kV VCB
4	11 kV VCB
5	415V ACB
6	Preventive Maintenance of 220KV Isolators
7	Preventive Maintenance of 220KV Switchyard bay marshalling box
8	Preventive maintenance of switchgear panel of following voltage level:
9	33kV
10	11kV
11	415V
12	Preventive Maintenance of transformers of following rating:
13	220/33kV, 40MVA
14	33/11kV, 40MVA
15	33/6.6kV, 16MVA
16	11/6.6kV, 8MVA
17	Below 8MVA
18	Oil topup in transformers of following rating:
19	8MVA and above
20	8MVA and below
21	Replacement/Drying of Silica Gel of transformer
22	Arresting of oil leak from transformer of following rating:
23	220/33kV, 40MVA
24	33/11kV, 40MVA
25	33/6.6kV, 16MVA
26	11/6.6kV, 8MVA
27	Below 8MVA
28	Transformer oil sample collection and testing(for BDV) as per relevant Indian standard. BDV kit will be provided by department
29	Disconnection of power cables from transformer(rated 40 MVA) terminals(after opening terminal box cover) for the purpose of measuring of IR value and subsequent connection and closing of terminal boxes. Measurement of IR value covered in other item.
30	Disconnection of ground connection from transformer(rated 40 MVA) neutral terminals for the purpose of measuring of IR value and subsequent connection. Removal and reconnection of any other ground connections in the circuit are also covered in this item. Measurement of IR value covered in other item.
31	Disconnection of power cables from transformer(rated between 8MVA and 40MVA) terminals(after opening terminal box cover)/bus bar terminals for the purpose of measuring of IR value and subsequent connection and closing of terminal boxes. Measurement of IR value covered in other item
32	Disconnection of ground connections from transformer(rated between 8MVA and 40 MVA) neutral terminals for the purpose of measuring of IR value and subsequent connection. Removal and reconnection of any other ground connections in the circuit are also covered in this item. Measurement of IR value covered in other item.
33	Disconnection of power cables from transformer(rated 8 MVA and less) terminals(after opening terminal box cover) for the purpose of measuring of IR value and subsequent connection and closing of terminal boxes. Measurement of IR value covered in other item.
34	Disconnection of ground connections from transformer(rated 8MVA and less) neutral terminals for the purpose of measuring of IR value and subsequent connection. Removal and reconnection of any other ground connections in the circuit are also covered in this item. Measurement of IR value covered in other item.
35	Removal of existing Oil Temperature indicator/Winding temperature indicator of transformer and replacing it with spare by proper mounting. Connection and disconnection of indicator terminals from marshalling box is in the scope of contractor
36	Measurement of Insulation resistance value/ Polarisation index value of transformer winding/power cable/circuit breaker/bus bar/motor etc.
37	Measurement of dielectric disspitation factor/Capacitance value of insulations of 220kV CT/PT/transformer/OIP bushing
38	Troubleshooting of control/protective/power circuits of 220kV circuit breaker/ 220kV isolator/ 220/33kV 40MVA transformer/220kV CT/220kV PT etc.
39	Troubleshooting of control/protective/power circuits of 33kV switchgear/33kV breakers/33kV-11kV-6.6kV voltage level transformers etc.
40	Troubleshooting of control/protective/power circuits of 6.6kV-415V voltage level transformer/6.6kV motor etc.
41	Troubleshooting of control/protective/power circuits of 415V circuit breaker/ 415V transformer/ 415V switchgear/ 415V motor etc.
42	Troubleshooting of control/protective circuits of 220V DC/48V/24V DC system
43	Installing semaphore switch/ Annunciator/ Ammeter/ Voltmeter/ Energy meter/ Synchronising selector switch/Protective relay/Selector switch/Indication lamp/contactor/overload/MCB/fuse holder/TPN switch etc by cutting the panel door to suitable size, proper mounting as per instructions of EIC and proper terminations of wires with lugs
44	Replacement of fuse holder/MCB/semaphore switch/ Annunciator/ Ammeter/ Voltmeter/ Energy meter/ Synchronising selector switch/Protective relay/Selector switch/Indication lamp/contactor/overload/TPN switch etc with spare and proper terminations of wires same as before
45	Improvement of IR value to satisfactory value(as directed by EIC) of 33kV outgoing cubicle by hot air blowing/ heating with luminaires etc.
46	Improvement of IR value of 415V motor to satisfactory value(as directed by EIC) by hot air blowing in terminal box/ heating with luminaires etc.
47	Preventive Maintenance of HT motor
48	Condition monitoring of HT motor
49	Improvement of IR value of 6.6kV motor to satisfactory value(as directed by EIC) by hot air blowing in terminal box/ heating with lumiaires etc.
50	Preventive Maintenance of LT motor and its module
51	Condition monitoring of LT motor
52	Temporary power supply connection / disconnection at different location (material collection from plant store and safe return to plant in contractor scope)
53	Condition monitoring of LT module
54	Shifting of CTs/PTs/LT motors/Control transformers/testing kits etc. from DPS store/E-U store to site/site to store when required
55	Removal of connection of 220KV overhead conductors from OIP bushings for testing of bushings and re-termination after completion of testing
56	Pre-monsoon checks of transformers as per checklist
57	Disconnection of cables from motors/overhead lines/TBs etc. for troubleshooting etc. and reconnecting after completion of troubleshooting
58	Supply of paint and painting of the surface of cable tray/panel/motor/exhaust fan etc. Minimum quantity of synthetic enamel smoke grey paint to be supplied:15 litres