Extension And Modification - 11Kv And 6 . 6Kv Hv Switchboard ( Indoor Type ), IOCl GUJARAT REFINERY-Gujarat

Extension And Modification - 11Kv And 6 . 6Kv Hv Switchboard ( Indoor Type ) , Extension And Modification - 11Kv & 6 . 6Kv Hv Switchboard ( Indoor Type ) , Panel Extension In Existing 11Kv Switchboard ( Sw-11 ) For Two Nos . Of Distribution Transformers ( 2 . 5Mva Each ) Having Following Specifications: -1X 630A , 11Kv , 3Ph , 50Hz , 40Ka/1Sec Vcb Panels ( To Be Installed On Each Bus-Section Of Existing Switchgear Sw-11 ) Complete With But Not Limited To The Following:- 1X Set Of 2500A Main And Transition Busbars- 1X Set Of All Associated Protection , Control And Indication Equipment/Items I . E . Xfmr Feeder Protection Relay , Power Meters , Current Transformer , Auxiliary Relays , Indicating Lamps , Control Switches Etc . , Panel Modification In Existing 6 . 6Kv Switchboard ( Sw-12 ) : 1X 215Kw , 6 . 6Kv , 3Ph , 26 . 2Ka/1Sec Motor Starter ( To Be Installed On Each Dummy Panel Sw-12/Unit F10a And Sw-12/Unit F23a , Type M1 ) Complete With But Not Limited To The Following:- 1X Set Of Main And/Or Transition Busbars ( As Required For Integration With Existing 2000A Main Busbar System ) - 1X 630A Vcb- 1X Set Of All Associated Protection , Control And Indication Equipment/Items I . E . Xfmr Feeder Protection Relay , Power Meters , Motor Protection Relay , Instrument Current Xfmrs , Auxiliary Relays , Indicating Lamps , Control Switches Etc . , Panel Modification In Existing 6 . 6Kv Switchboard Motor Feeder ( Motor Tag No . 2071-P-002A And B , Panel No . 5 And 25 , Feeder Type M1 ) : A . Replacement Of Existing Ct Of 40/1 With New Ct Of Rating 75/1-5A , Short Circuit Rating 26 . 2Ka For 1 Sec . Core-1 : Cl-1 , 10Va And Core-2 : Cl 5P15 , 10Va Having Insulation Class B . B . Replacement Of Existing Cbct With New Cbct Of Rating 10/1A , Poc 1 . 7A , Supply And Fixing Of New Nameplate On The 6 . 6Kv Switchboard Mentioning Revised Rating For Following Motors . A . 2063-P-002C ( 1260Kw ) B . 2061-P-001A ( 630Kw ) C . 2061-P-001B ( 630Kw ) D . 2071-P-002A ( 450Kw ) E . 2071-P-002B ( 450Kw ) , Supply And Installation Of Bus Links , Inter Panel Wiring , Required Modification In Hardware / Software Inside The Panel To Hook-Up With Existing Hmi/Ecs/Rtu System Of Existing Ss-36 With Required Components And Modules . , Installation , Testing And Commissioning Of 11Kv And 6 . 6Kv Switchboard For Extension And Modification Scope As Described Above Including Relay Setting And Coordination With Upstream And Downstream System At Site . The Scope Also Includes Pre-Design Site Visit To Understand The Existing Installation And Hook Up Requirements Of 11Kv And 6 . 6Kv Hv Switchboard .

Sr No	CorrigendumDate	Corrignedum	CorrigendumType	NewSubmissionDate
1	15-Oct-2020	Commercial Corrigendum-1	Date	22-10-2020

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Name of Work: Extension and Modification - 11kV & 6.6kV HV Switchboard (Indoor Type)
	Sl. No.	Item Description	Item Code / Make	Quantity	Units
1	1	Extension and Modification - 11kV & 6.6kV HV Switchboard (Indoor Type)
2	1.01	Panel Extension in existing 11kV Switchboard (SW-11) for Two nos. of Distribution Transformers (2.5MVA Each) having following specifications: \n-1x 630A, 11kV, 3Ph, 50Hz, 40kA/1sec VCB Panels (To be installed on each Bus-Section of Existing Switchgear "SW-11") complete with but not limited to the following:\n- 1x set of 2500A Main and Transition Busbars\n- 1x Set of all associated protection, control and indication equipment/items i.e. XFMR Feeder protection relay, Power Meters, Current transformer, Auxiliary Relays, Indicating Lamps, Control Switches etc.	item1	2	Nos
3	1.02	Panel Modification in existing 6.6kV Switchboard (SW-12) : \n\n1x 215kW, 6.6kV, 3Ph, 26.2kA/1sec Motor Starter (To be installed on each dummy panel "SW-12/Unit F10A" and "SW-12/Unit F23A, type M1") complete with but not limited to the following:\n- 1x set of Main and/or Transition Busbars (As required for integration with existing 2000A main Busbar System)\n- 1x 630A VCB\n- 1x Set of all associated protection, control and indication equipment/items i.e. XFMR Feeder protection relay, Power Meters, Motor Protection Relay, Instrument Current XFMRs, Auxiliary Relays, Indicating Lamps, Control Switches etc.	item2	2	Nos
4	1.03	Panel Modification in existing 6.6kV switchboard motor feeder (Motor Tag no. 2071-P-002A and B, panel no.5 and 25, feeder type M1): \na.\tReplacement of existing CT of 40/1 with new CT of rating 75/1-5A, Short Circuit rating 26.2kA for 1 sec. Core-1 : CL-1, 10VA and Core-2 : CL 5P15, 10VA having Insulation Class B.\nb.\tReplacement of existing CBCT with new CBCT of rating 10/1A, POC 1.7A	item3	2	Nos
5	1.04	Supply and fixing of new nameplate on the 6.6kV switchboard mentioning revised rating for following motors.\na.\t2063-P-002C (1260kW)\nb.\t2061-P-001A (630kW)\nc.\t2061-P-001B (630kW)\nd.\t2071-P-002A (450kW)\ne.\t2071-P-002B (450kW)	item4	1	Lot
6	1.05	Supply and installation of bus links, inter panel wiring, required \nmodification in hardware / software inside the panel to hook-\nup with existing HMI/ECS/RTU system of existing SS-36 with \nrequired components and modules.	item5	1	Lot
7	2	Installation, Testing and commissioning of 11kV and 6.6kV \nSwitchboard for extension and modification scope as \ndescribed above including relay setting and coordination with \nupstream and downstream system at site. \nThe scope also includes Pre-Design site visit to understand \nthe existing installation and hook up requirements of 11kV and \n6.6kV HV switchboard.	item6	1	Activity