81066 Spl Rep Replacement of Old Vintage VCBs under AGE EM-1 GE Minniebay Port Blair

Amount

Supply, Installation, testing & commissioning of indoor type HT 11KV, 25 kA, VCB line upto 16 (Sixteen panels HT switchboard consisting of 800 Amps, VCB 11 KV - 01 Nos as Incomer(EB), 02 Nos as Incomer(DG), Bus coupler cum Bus Riser 800 Amps VCB 11 KV -2Nos , Outgoing minimum 630 A VCB 11 KV - 11 Nos. VCB panel indoor type totally enclosed, free standing floor mounting type, compartment based with truck mounted vacuum circuit breaker spring operated electrically and manually charged operating mechanism suitable for horizontal isolation, horizontal draw out type VCBs with copper bus bars, Self supported Insulated Busbar with full voltage rated should be used. The switchgear panel shall be of sheet steel construction with Aluminum Zinc not less than 2.5mm thickness for load bearing section and not less than 2 mm thickness for non-load bearing and shall totally dust and vermin proof. (Contd..../-)

Complete VCB panel confirming to IEC 62271-200 standards and IP 4X class of protection comprising necessary bus-bars extension and connections and following protective and control devices as specified below. Circuit Breaker shall be suitable for E2, M2, C2 duty suitable for temperature/humidity/other atmosphoric conditions of Minniebay Port Blair and as per PS Specification complete including suitable cement concrete foundation & foundation frame as per OEM recommendations complete with the following :- Make : SCHNEIDER/ ABB/ SIEMENS or equivalent approved make of HQ CESC (A) 11KV Incomer Panel - 01 Nos as Incomer(EB), 02 Nos as Incomer(DG). Incomer 11KV, 800A, 25KA, HT Vacuum Circuit Breaker for Incomer confirming to the IEC 62271-200 and and IP 4X class of protection comprising necessary bus-bars extension and connections and following protective and control devices as specified below. (a) 800 Amps Continous high conductivity electrolytic copper bus bar, Raychem Insulated for full voltage, phase identification made at the end by colored tape, bus bar shall be mounted on integral seal off bushing and interconnection with electrolytic grade copper with joints silver plated. (Contd..../-)

(b) Circuit breaker shall be mounted on a withdrawable truck which shall roll out horizontally from service position to isolated position with ease.Circuit Breaker shall be suitable for E2, M2, C2 duty. Vacuum Interrupters of the circuit breakers shall be completely encapsulated in epoxy housing.The switchgear shall be have temperature measurement wireless sensors at all ciritcal points Medium voltage cable connection & Busbar joints/ Connections.The system shall help operator during local investigation and local monitoring as per specifications. HMI shall give access to the condition monitoring data and alarm. Make of HMI: ABB/SIEMENS/SCHNIEDER or equivalent approved make of HQ CESC. The switchgear and control gear panels shall be of the fully arc proof/tested for 25kA for 1 Sec. Make: ABB / Schneider / Siemens or equivalent approved make of HQ CESC (c) Motorised Spring Charged Mechanism with emergency push button (d) Cast Resin Current Transformer, 11KV, with primary 300-150A secondary 5-5 A or 1-1 A, 15VA, Cl 5P10, Cl0.5 Core II: PS Class - 03 Nos for each VCB panel. (Contd..../-)

(j) Panel Must have additional features :- (i) Continous rated closing/tripping coils (ii) Spring Charging Handle (iii) Fully Internal Arc tested for 25KA for 1 Sec or as per IEC 62271-100 (iv) Manual closing /tripping of the CB with compartment door closed (v) Short time rating for 3 seconds as per IEC 62271-100 (vi) Mechanical endurance test - M2 (vii) Air insulated rear end Bottom entry cable box suitable for termination of XLPE Cables (viii) Breaker shall be provided with Auxiliary switch 6NO + 6NC contacts mounted on the draw out portion of the switchgear and Position cell switch with 3NO + 1NC contact one each for test position and service position. (ix) Temperature sensor type TH110 or equivalent for Cable & Busbar chamber. (x) 1 No.Wireless Humidity sensor type (Contd..../-)

(k) SCADA Compatible Feeder Protection Relay 50/51(3 phase over current), 50/51N ( Earth over current),STOFF switch on to fault (50 HS), 67P (3phase directional over current), 67N(Earth fault directional over current), 51V(Voltage controlled over current), 37(3phase under current), 46(Negative phase sequence over current), 59N(Residual over voltage), 32(Directional Power protection (Under/ Over active/ reactive power), 81U/O (Under/over frequency), 49(Thermal overload), 79(Autoreclose), 50BF(Circuit breaker failure detection), Cold load pick up and magnetizing inrush, programmable stages(99), syncro check(25), CB wear.Relay will be on Modbus Protocol & with graphical display - 1No. Make : Schneider / ABB/ Siemens or equivalent approved make of HQ CESC. (l) Relay shall support with communication protocols IEC 61850, have front USB,support PRP/RSTP redundancy communication protocol on RJ45/FO,shall have web server (web HMI) feature to monitor and control using LAN,have minimum 8 programmable LED,shall have 4CT and 4VT inputs.The relay shall be provided with at least 16 digital inputs and 8 digital outputs and one self-supervision output. (Contd.../-)

(m) Master Trip Relay - 1 No with remote reset-1 Nos. Make: Schneider / ABB/ Siemens or equivalent approved make of HQ CESC. (n) Trip Circuit Supervision Relay - 1 No or inbuilt in main protection relay Make: Schneider / ABB/ Siemens or equivalent approved make of HQ CESC. (p) PT Fuse Failure Relay -1 No or inbuilt in main protection relay Make: Schneider / ABB/ Siemens or equivalent approved make of HQ CESC. (q) Anti Pumping Relay & DC Supervision relay, High Speed master trip relay - 1 No or inbuilt in main protection relay Make: Schneider / ABB/ Siemens or equivalent approved make of HQ CESC. (Contd.../-)

(B) 11KV Bus coupler cum Bus Riser 800 Amps VCB 11 KV -2Nos Incomer 11KV, 800A, 25KA, HT Vacuum Circuit Breaker for Incomer confirming to the IEC 62271-200 and and IP 4X class of protection comprising necessary bus-bars extension and connections and following protective and control devices as specified below. (a) 800 Amps Continous high conductivity electrolytic copper bus bar, Raychem Insulated for full voltage, phase identification made at the end by colored tape, bus bar shall be mounted on integral seal off bushing and interconnection with electrolytic grade copper with joints silver plated. (b) Circuit breaker shall be mounted on a withdrawable truck which shall roll out horizontally from service position to isolated position with ease.Circuit Breaker shall be suitable for E2, M2, C2 duty. Vacuum Interrupters of the circuit breakers shall be completely encapsulated in epoxy housing.The switchgear shall be have temperature measurement wireless sensors at all ciritcal points Medium voltage cable connection & Busbar joints/ Connections.The system shall help operator during local investigation and local monitoring as per specifications. (Contd..../-)

(g) Digital Ammeter with ASS -1 no, Digital Voltmeter with ASS-1 no (h) Panel Must have additional features :- (i) Continous rated closing/tripping coils (ii) Spring Charging Handle (iii) Fully Internal Arc tested for 25KA for 1 Sec or as per IEC 62271-100 (iv) Manual closing /tripping of the CB with compartment door closed (v) Short time rating for 3 seconds as per IEC 62271-100 (vi) Mechanical endurance test - M2 (vii) Air insulated rear end Bottom entry cable box suitable for termination of XLPE Cables. (viii) Breaker shall be provided with Auxiliary switch 6NO + 6NC contacts mounted on the draw out portion of the switchgear and Position cell switch with 3NO + 1NC contact one each for test position and service position. (ix) Temperature sensor type TH110 or equivalent for Cable & Busbar chamber. (x) 1 No.Wireless Humidity sensor type. (Contd.../-)

(j) SCADA Compatible Feeder Protection Relay 50/51(3 phase over current), 50/51N ( Earth over current),STOFF switch on to fault (50 HS), 67P (3phase directional over current), 67N(Earth fault directional over current), 51V(Voltage controlled over current), 37(3phase under current), 46(Negative phase sequence over current), 59N(Residual over voltage), 32(Directional Power protection (Under/ Over active/ reactive power), 81U/O (Under/over frequency), 49(Thermal overload), 79(Autoreclose), 50BF(Circuit breaker failure detection), Cold load pick up and magnetizing inrush, programmable stages(99), syncro check(25), CB wear.Relay will be on Modbus Protocol & with graphical display - 1No. Make : Schneider / ABB/ Siemens or equivalent approved make of HQ CESC. (k) Relay shall support with communication protocols IEC 61850, have front USB,support PRP/RSTP redundancy communication protocol on RJ45/FO,shall have web server (web HMI) feature to monitor and control using LAN,have minimum 8 programmable LED,shall have 4CT and 4VT inputs.The relay shall be provided with at least 16 digital inputs and 8 digital outputs and one self-supervision output. (Contd...../-)

(l) Master Trip Relay - 1 No with remote reset-1 Nos. Make: Schneider / ABB/ Siemens or equivalent approved make of HQ CESC. (m) Trip Circuit Supervision Relay - 1 No or inbuilt in main protection relay Make: Schneider / ABB/ Siemens or equivalent approved make of HQ CESC. (n) Anti Pumping Relay & DC Supervision relay, High Speed master trip relay - 1 No or inbuilt in main protection relay Make: Schneider / ABB/ Siemens or equivalent approved make of HQ CESC. (C )11KV Outgoing Panels - 11 Nos Incomer 11KV, minimum 630A, 25KA, HT Vacuum Circuit Breaker for Incomer confirming to the IEC 62271-200 and and IP 4X class of protection comprising necessary bus-bars extension and connections and following protective and control devices as specified below. (a) Minimum 630 Amps Continous high conductivity electrolytic copper bus bar, Raychem Insulated for full voltage, phase identification made at the end by colored tape, bus bar shall be mounted on integral seal off bushing and interconnection with electrolytic grade copper with joints silver plated. (Contd..../-)

(b) Circuit breaker shall be mounted on a withdrawable truck which shall roll out horizontally from service position to isolated position with ease.Circuit Breaker shall be suitable for E2, M2, C2 duty. Vacuum Interrupters of the circuit breakers shall be completely encapsulated in epoxy housing. The switchgear shall be have temperature measurement wireless sensors at all ciritcal points Medium voltage cable connection & Busbar joints/ Connections.The system shall help operator during local investigation and local monitoring as per specifications. HMI shall give access to the condition monitoring data and alarm. Make of HMI: ABB/SIEMENS/SCHNIEDER or equivalent approved make of HQ CESC. The switchgear and control gear panels shall be of the fully arc proof/tested for 25kA for 1 Sec. Makes: ABB / Schneider / Siemens or equivalent approved make of HQ CESC (c) Motorised Spring Charged Mechanism with emergency push button. (Contd..../-)

(h) Panel Must have additional features :- (i) Continous rated closing/tripping coils (ii) Spring Charging Handle (iii) Fully Internal Arc tested for 25KA for 1 Sec or as per IEC 62271-100 (iv) Manual closing /tripping of the CB with compartment door closed (v) Short time rating for 3 seconds as per IEC 62271-100 (vi) Mechanical endurance test - M2 (vii) Air insulated rear end Bottom entry cable box suitable for termination of XLPE Cables (viii) Breaker shall be provided with Auxiliary switch 6NO + 6NC contacts mounted on the draw out portion of the switchgear and Position cell switch with 3NO + 1NC contact one each for test position and service position. (ix) Temperature sensor type TH110 or equivalent for Cable & Busbar chamber. (x) 1 No.Wireless Humidity sensor type. (Contd.../-)

(j) SCADA Compatible Feeder Protection Relay 50/51(3 phase over current), 50/51N ( Earth over current),STOFF switch on to fault (50 HS), 67P (3phase directional over current), 67N(Earth fault directional over current), 51V(Voltage controlled over current), 37(3phase under current), 46(Negative phase sequence over current), 59N(Residual over voltage), 32(Directional Power protection (Under/ Over active/ reactive power), 81U/O (Under/over frequency), 49(Thermal overload), 79(Autoreclose), 50BF(Circuit breaker failure detection), Cold load pick up and magnetizing inrush, programmable stages(99), syncro check(25), CB wear.Relay will be on Modbus Protocol & with graphical display - 1No. Make : Schneider / ABB/ Siemens or equivalent approved make of HQ CESC. (k) Relay shall support with communication protocols IEC 61850, have front USB,support PRP/RSTP redundancy communication protocol on RJ45/FO,shall have web server (web HMI) feature to monitor and control using LAN,have minimum 8 programmable LED,shall have 4CT and 4VT inputs.The relay shall be provided with at least 16 digital inputs and 8 digital outputs and one self-supervision output. (Contd..../-)

(l) Master Trip Relay - 1 No with remote reset-1 Nos. Make: Schneider / ABB/ Siemens or equivalent approved make of HQ CESC. (m) Trip Circuit Supervision Relay - 1 No or inbuilt in main protection relay Make: Schneider / ABB/ Siemens or equivalent approved make of HQ CESC. (n) Anti Pumping Relay & DC Supervision relay, High Speed master trip relay - 1 No or inbuilt in main protection relay Make: Schneider / ABB/ Siemens or equivalent approved make of HQ CESC. (p) Transformer Fault Alarm/Trip Aux. Relay for Transformer outgoing Feeders only -4 No Make: Schneider / ABB/ Siemens or equivalent approved make of HQ CESC. (q) Annunciator (12 Window) for Transformer Feeder only - 4 Nos Make: Schneider / ABB/ Siemens or equivalent approved make of HQ CESC. (Contd..../-)

bottom all as directed. (Note: The rate quoted deemed to be inclusive of control cables & supply cable complete) .Make: Maintenance free batteries type VRLA Battery - Exide/AMCON Battery charger- Caldyne/ Amarraja (Amcon)/ HBL Nife. (G) EARTHING STRIP : Quoted rate inclusive of provn of GI earth strip 32x6mm from earth testing point up to VCB panels/ battery bank system including protection pipe etc complete. (H) Elastomer Synthetic insulation Mat : The quoted rate inclusive for provision of Nominal 2.5 mm +10%, thick insulated Elastomer Synthetic insulation Mat Confirming to I.S.15652:2006 and meeting the requirements of IS 5216 (Part1,2&3), IS 8437, IEC-479 Pub-1, along with suitable adhesive / chemibond, Pu-resin, waterproofing compound and sealing material as per service recommendations of Annexure 'A', Clause C of IS: 15652 and suitable for Class-A upto 33KV with HT trolley movement in front of VCB panels and battery bank system complete all as directed. Make:Electromat /Suntex (INSULATICA 2000) or equivalent approved make of HQ CESC (Contd..../-)

Note for item No. 01 :- (a) Electrical and mechanical interlocking between all incoming breaker and bus coupler breaker to avoid double supply in outgoing breakers shall be provided as directed by Engr-in-Charge. (b) Contractor shall submit type test report for standards mentioned above/GA drgs to the GE for approval before placing order to original manufacturer's of the panels. The quoted rate inclusive of provision of specified rated capacity of nearest higher avialable capacity of VCBs as per OEM design without any claim. (c) Contractor shall provide all the arrangements for witnessing the pre-despatch inspection of equipments/machinery by the representative of Accepting Officer at factory premise or through digital e-testing as directed by Accepting Officer. (d) Any items/ parts required for making connections in respect of incoming, outgoing, buscoupler and earthing etc are deemed to be included the unit rate quoted. (e) Unit rate quoted shall be inclusive of the cost of control cables complete for keeping the HT panels in operational as required. (Contd.../-)

(f) Unit rate quoted shall be inclusive of the cost of connecting existing HT cables, radium stickered name plates indicating each feeder and schematic layout distribution drawing all as directed by Engr-in-Charge. (g) The quoted rate inclusive of necessary addition/ateration/cutting of cable duct for installation of VCBs in proper alignment, provision of PCC fdn, angle iron/channel supports required complete for errection of panels as per OEM recommendations and as directed by Engr-in-Charge/GE. (h) The quoted rate inclusive of provision of temporary arrangements/connections of restoration of electrical supply till the installation/errection of HT panels all as directed by Engr-in-Charge/GE

Dismanlting old HT VCB panels -16 Nos complete with connected accessories carefully including dismantling the Cable connections complete & transporting to MES Storeyard/any location with necessary T&P and transportation complete all as directed upto a distance not exc 1.5 KM.

Supply ,laying , testing & commissioning of HT UG cable, XLPE insulated screened PVC bedded, galvanised steel strip or wire armoured, electric power cable(heavy duty) with stranded aluminium conductor,6.35/11 KV grade (Earthed system cable), of size 3 core 120 sqmm. Make: GLOSTER/POLYCAB/HAVELLS/KEI or equivalent approved make of HQ CESC in existing cable duct complete. Note:- (a) Rate inclusive of cutting of PCC, DWC HDPE pipe wherever required and HT termination joints will be measured and paid separately.

Supply ,laying , testing & commissioning of HT UG cable, XLPE insulated screened PVC bedded, galvanised steel strip or wire armoured, electric power cable(heavy duty) with stranded aluminium conductor,6.35/11 KV grade (Earthed system cable), of size 3 core 95 sqmm. Make: GLOSTER/POLYCAB/HAVELLS/KEI or equivalent approved make of HQ CESC in existing cable duct complete. Note:- (a) Rate inclusive of cutting of PCC, DWC HDPE pipe wherever required and HT termination joints will be measured and paid separately.

M & L for Cable jointing kit for 11 KV (Earthed) grade cable for indoor termination cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of of size 50 Sqmm to 95 sqmm. Make: Raychem/ Birla 3M/ M-Seal/Denson

M & L for Cable jointing kit for 11 KV (Earthed) grade cable for indoor termination cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of of size 120 Sqmm to 185 sqmm. Make: Raychem/ Birla 3M/ M-Seal/Denson

M & L for Cable jointing kit for 11 KV (Earthed) grade cable for straight through , cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of of size 50 to 95 Sqmm Make: Raychem/ Birla 3M/ M-Seal/Denson

M & L for Cable jointing kit for 11 KV (Earthed) grade cable for straight through , cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of of size 95 Sqmm to 120 sqmm. Make: Raychem/ Birla 3M/ M-Seal/Denson

Material and labour earthing with galvanised steel earth plate electrode of size 60x60cmx6mm thick buried directly in ground to a depth not less than 2.25 mtr deep below normal ground level with top edge of the earth plate not less than 1.5 mtr deep below normal ground level connected to galvanized iron strip of size 32x6mm as earthing lead by means of nuts, bolts and washers of steel after welding of GI strip to earth electrode to the full lenght of earth plate,40mm dia GI tubing light grade protection pipe upto test point, 20mm dia GI watering pipe with funnel and wire mesh, PCC pit 1:3:6 with pit cover of size 30X30 cm made of RCC 1:3:6 with 8mm dia bars & with 6 mm dia size MS handle,angle iron frame made of angle iron of size 40x40x4mm, adequate qty of charcoal dust and salt layers all around the earth plate, earth work in any type of soil, removal of excavated soil and returning filling in all as required at site complete all as specified in plate No 3 of SSR Part-I and all as specified or indicated including testing on completion. NOTE :-Rates inclusive of necessary excavation in any type of soil, earth work, PCC pit, CI cover, funnel with watering pipe, suitable size of light grade GI Protection pipe for earth strip in ground, GI earth strip upto 7.5 m long for connecting to test point etc. all as required at site for complete earthing).

RAVINDRA BROTHERS

Prasur Electricals & Engineering Co.