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	Corrigendum	CorrigendumType	NewSubmissionDate
1	15-10-2020	Commercial Corrigendum-1	Date	22-10-2020

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