753071A UPGRADATION OF GRANTRY YARD OF 33 KV MAIN RECEIVING STATION MRS OF RLB POWER HOUSE UNDER GE WEST JABALPUR

SCHEDULE "A"

Item No 01 : Design (Architecturally and Structurally drawings) and Construction of Block of sub Station building (Single Story) having plinth Area of 20.00 Sqm (Approximately) (nternal size of Bldg 5.50 M x 3.00 M with minimum height 3.50 M) complete all as per design basis report and scope and specifications mentioned in tender documents.

External Electric Supply

Item No 02 : Supply, installation, testing and commissioning HT 11 KV, 3 Phase, 50 Hz, 3 wire, totally enclosed, metal clad, prewired, extensible type, indoor type, floor mounted, Horizontal draw out, horizontal isolation type vacuum circuit breaker (VCB) 630 Amp rating, consisting of INCOMER VCB-02 No, Outgoing VCB-02 No and suitable size bus coupler VCB with copper bus bar of appropriate capacity duly insulated, motor operated, spring charged having rupturing capacity 350 MVA, comprising of the followings including provision of suitable foundation and duct under the VCBs for necessary entry for cables with and including the followings:- (A) Incoming VCB, 630 Amps, 350 MVA-02 No & outgoing VCB, 630 Amps, 350 MVA - 02 No with and including the followings:

(a) Housing for circuit breaker carriage - 1 No (b) Vacuum interrupter suitable for 630 Amps-set of 03 (c) Mechanical inter lock and automatic safety shutter gear including padlocking arrangement-1 No (d) Closing & tripping coil suitable for 24 V DC-01 Set (e) 4 NO +4 NC Auxiliary switch - 01 Set (f) Mechanical ON/OFF indicator-01 Set (g) Mechanical spring charge/discharge indicator-01 Set (h) Breaker Position indicator-01 Set (j) Mechanical operating counter-01 Set (k) Automatic safety shutters - 01 Set (l) Secondary Plug in contacts-01 Set (m) Anti Pumping relay - 01 Set

(n) 11 KV Epoxy Resin Cast current transformer of ratio 200-100/50-5+5A, Core I, Class 1.0 with 15 VA burden for metering, core II CL-1.0, 5 P 10 with 15 VA burden for protection, - 03 Nos (o) 11 KV epoxy resin cast potential transformer of ratio 11/ under root 3/110/under root 3V, 3 phase, draw out type, Core I, Cl1.0 with 100 VA burden for metering & protection-01 No (p) meter misc type 96sqmm ammeter with selector switch - 01 No (q) Meter Misc type 96sqmm voltmeter with selector switch - 01 No (r) Relay non drawout case type, micro processed based non-direction IDMT-01 No

(s) Master trip relay - 01 No (t) Auxiliary relay - 01 No (u) Trip circuit supervision relay-01 No (v) Battery power pack with battery & in built charger for 24V circuit-01 Set (w) KWH meter suitable to record unit consumed-01 No (x) R,Y,B indication lamp-01 Set (xi) Breaker ON/OFF indicating lamps-01 No (xii) Spring charging indication lamp-01 No (xiii) Auto trip indication lamp-01 No (xiv) Trip circuit healthy indication-01 No (xv) Trip/Neutral/Close switch-01 No (xvi) Trip circuit healthy push button-01 No (xvii) MCB for spring charge motor-01 No

(xviii) MCB for AC/DC supply-01 Set (xix) Panel space heater with thermostat-01 No (xx) Panel illumination with switch-01 No (xxi) 5 Amps 3 pin socket with switch-01 No (xxii) Copper Bus bar suitable for 630 Amps rating with sleeves R, Y. B-01 Set (xxiii) Control fuses, ferules & wiring complete - 01 Set (xxiv) MS cubicle with powder coating - 01 Set

(B) Description of bus coupler VCB: Vacuum Circuit Breaker 11 KV, 800A Current rating frequency 50 Hz Short Circuit Breaking Capacity 21 KA. The bus coupler shall be housed in a robust, dustproof, and waterproof metal enclosure with IP degree of protection having Copper busbars with appropriate insulation with reliable spring-charged or motor-charged operating mechanism. VCB should be Capable for remote operation and monitoring through SCADA. All metering panels and tripping mechanisms shall comply with incoming and outgoing VCBs.

Item No 03 : M&L for Lightning arresters expulsion type suitable for 33 KV complete with all fittings, transmission class, discharge capacity 65 kilo amp complete all as specified and directed.