PROVISION FOR AUGMENTATION OF EXTERNAL SERVICES FOR NEW PROJECTS AT RCI, HYDERABAD

Amount

Lumpsum price worked out by the contractor for Construction of substation building with RCC framed structure complete all as shown on drawings and as specified.

Lump sum price worked out by the Contractor for “EARTHWORK EXCAVATION, SITE CLEARANCE AND DEVELOPMENT" as listed in Schedule ‘A’ Part - II representing _____________ % _____________________ percent Above / Below the lump sum price of `64,29,908.77 inserted by the MES in Schedule ‘A’ Part - II

Lump sum price worked out by the Contractor for “INTERNAL ELECTRIFICATION” as listed in Schedule ‘A’ Part - III representing __________ % ____________ percent Above / Below the lump sum price of `3,36,614.12 inserted by the MES in Schedule ‘A’ Part - III

Lump sum price worked out by the Contractor for “INTERNAL WATER SUPPLY” as listed in Schedule ‘A’ Part - IV representing __________ % ____________ percent Above / Below the lump sum price of ₹21,445.36 inserted by the MES in Schedule ‘A’ Part - IV

Lump sum price worked out by the Contractor for "ROADS / PATHS / HARD STANDING” as listed in Schedule ‘A’ Part - V representing ______ % _________________ percent Above / Below the lump sum price of `2,19,282.16 inserted by the MES in Schedule ‘A’ Part - V

Lump sum price worked out by the Contractor for "EXTERNAL ELECTRIC SUPPLY” as listed in Schedule ‘A’ Part - VI representing _______ % __________________ percent Above / Below the lump sum price of `4,32,67,311.00 inserted by the MES in Schedule ‘A’ Part - VI

Lump sum price worked out by the Contractor for “AREA DRAINAGE” as listed in Schedule ‘A’ Part - VII representing __________ % _________________________ percent Above / Below the lump sum price of `4,54,583.61 inserted by the MES in Schedule ‘A’ Part - VII

Lump sum price worked out by the Contractor for “FENCING AND GATE” as listed in Schedule ‘A’ Part - VIII representing ______% _________________ percent Above / Below the lump sum price of `7,84,627.95 inserted by the MES in Schedule ‘A’ Part - VIII

Schedule 'A' Part-IX This Schedule is not prepriced by MES and the prepriced rate indicated in Col - 5 as ₹0.00 indicates this fact only. The tenderer is required to quote their rates in Column 6. This Schedule constitutes Sl. Item Nos. 10.00 to 15.00.

EXTERNAL ELECTRIC SUPPLY Supply installation, testing & commissioning of the following siwtch gears set having 04 Nos of 11 KV, 3-Phase, 50 HZ, 800 Amps, 350 MVA, 26.3 KA Vacuum Circuit Breakers, extensible indoor type with motorized and manual spring charging facility breaking capacity 26.3 KA for 3 Seconds, SCADA compatible, having pad lock, provision for earth switch complete with all necessary accessories and standard fittings (e.g. Relays, C.T.s, P.T.s, Power pack, spring charging motor, trip coil, ammeter, voltmeter, indication lamps etc) all as specified, required at and as directed, comprising of 04 Nos of outgoing VCB and 01 bus coupler connecting the VCBs with existing VCB at MRS. Each VCB comprising the following: - Note: Rate quoted shall deemed to include 04 Nos of VCB & bus coupler.

(a) 11 KV, 3 Phase, 50 HZ, 800 Amps, 13.1 KA, VCB having short circuit current withstand capacity not less than 13.1 KA for 3 Seconds, having manual and automatic charging mechanism, by DC / Universal motor suitable for 110 Volts / 230 Volts AC / DC or as per OEM's recommendations, shunt trip coil, indication lamp, on off switch padlock, provision for earth switch etc complete all as specified and directed. (b) Double Core and Double Ratio type dry type current transformers (C.Ts) of ratio 5-25/5-5 Amps, suitable for 11 KV, 3 Phase, 50 HZ, having 15 VA burden or as per OEM's recommendation with 0.5 class accuracy for metering and % P10 accuracy for protection-01 Set of three. (c) Dry type 11 KV/110 Volts potential transformer (P.T.s) suitable for 11 KV, 3 Phase, 50 HZ, connected to bus bar class-1 accuracy of 100 VA burden or as per OEM's recommendation complete all as specified and directed-01 Set.

(d) Electronic type solid state programmable type self powered, SCADA compatible having overload, earth fault and short circuit tripping facility with memory to record fault event with fault current and type of fault with real date and time suitable for 11 KV, 3 Phase, 50 HZ VCB and having high torque, less burden not more than 3 VA and low overshoot suitable for 5 of 1 Amps current rating and having three over current and one earth fault elements with over current range not less than 50% to 200% in steps of not less than 5% with time multiplier setting range not less than 0.1 to 1.0 in steps of not more than 0.01 (separate for over current and earth fault) suitable DC auxiliary supply and housed on horizontal draw out type case flush pattern with accessories duly connected with trip and alarm system complete all as specified and directed-01 Set. (e) LED type indication lamps for circuit breaker open (OFF)-'GREEN', Circuit breaker close (ON) 'RED' Circuit breaker trip 'YELLOW', Spring charge 'BLUE' trip circuit healthy with push button and R-Y-B phase indication lamp complete all as specified - 01 Set.

(j) Power pack of suitable capacity contained in maintenance free batteries and battery charger to provide auxiliary power supply to VCB all as per OEM's recommendation and as directed at site by Engineer-in-Charge. (k) Internal control and metering wiring with PVC insulated copper conductor cables of suitable cross sections, necessary power connections and civil work as required for installation of cable. (l) Any other standard accessories required for smooth operation of VCB or recommended by OEM.

Supply installation, testing & commissioning of 11 KV, 3 Phase, 50 HZ of the following capacities of Vacuum Circuit Breaker, extensible indoor type with motorized and manual spring charging facility breaking capacity 26.3 KA for 1 Seconds, SCADA compatible, having pad lock, provision for earth switch complete with all necessary accessories and standard fittings (e.g. Relays, Digital C.T.s, P.T.s, power pack, spring charging motor, trip coil, ammeter, voltmeter, indication lamps etc) with online temperature monitoring system all as specified, required at site and as directed, comprising of following at CHESS and DSP areas). (a) 01 No of VCBs 11 KV, 3 Phase, 50 Hz, 800 Amps (as incomer) (b) 02 No of VCBs 11 KV, 3 Phase, 50 Hz, 400 Amps (as out going)

Note: (i) Description of 11 KV, 3 Pole, 50 HZ, 800 Amps VCB will be as per item Nos. 10.01 to 10.04 hereinbefore. (ii) Description of 11 KV, 3 Pole, 50 HZ, 400 Amps VCB are as under. (a) 11 KV, 3 Phase, 50 HZ, 400 Amps, 26.3 KA, VCB having short circuit current withstand capacity not less than 26.3 KA for 3 Seconds having manual and automatic charging mechanism, by DC / Universal motor suitable for 110 Volts / 230 Volts AC/DC or as per OEM's recommendation, shunt trip coil, indication lamp, on off switch padlock, provision for earth switch etc complete all as specified and directed. (b) Double Core and Double Ratio type dry type current transformers (C.Ts) of ratio 5-25/5-5 Amps, suitable for 11 KV, 3 Phase, 50 HZ, having 15 VA burden or as per OEM's recommendation with 0.5 class accuracy for metering and % P10 accuracy for protection-01 Set of three. (c) Dry type 11 KV/110 Volts potential transformer (P.T.s) suitable for 11 KV, 3 Phase, 50 HZ, connected to bus bar class-1 accuracy of 100 VA burden or as per OEM's recommendation complete all as specified and directed-01 Set.

(d) Electronic type solid state programmable type self powered, SCADA compatible having overload, earth fault and short circuit tripping facility with memory to record fault event with fault current and type of fault with real date and time suitable for 11 KV, 3 Phase, 50 HZ VCB and having high torque, less burden not more than 3 VA and low overshoot suitable for 5 of 1 Amps current rating and having three over current and one earth fault elements with over current range not less than 50% to 200% in steps of not less than 5% with time multiplier setting range not less than 0.1 to 1.0 in steps of not more than 0.01 (separate for over current and earth fault) suitable DC auxiliary supply and housed on horizontal draw out type case flush pattern with accessories duly connected with trip and alarm system complete all as specified and directed-01 Set. (e) LED type indication lamps for circuit breaker open (OFF)-'GREEN', Circuit breaker close (ON) 'RED' Circuit breaker trip 'YELLOW', Spring charge 'BLUE' trip circuit healthy with push button and R-Y-B phase indication lamp complete all as specified - 01 Set.

Supply installation, testing & commissioning of 11 KV, 3-Phase, 50 HZ of the following capacities of Vacuum Circuit Breaker, extensible indoor type with motorized and manual spring charging facility breaking capacity 26.3 KA for 1 Seconds, SCADA compatible, having pad lock, provision for earth switch complete with all necessary accessories and standard fittings (e.g. Relays, Digital C.T.s, P.T.s, Power pack, spring charging motor, trip coil, ammeter, voltmeter, indication lamps etc) with online temperature monitoring system all as specified, required at site and as directed, comprising of following at LSP Area and Technical areas). (a) 01 No of VCBs 11 KV, 3 Phase, 50 Hz, 800 Amps (as incomer) (b) 04 No of VCBs 11 KV, 3 Phase, 50 Hz, 400 Amps (as out going) Note: Specification of VCBs same as mentioned at items at Sl item No. 11.01 to 11.03.

Supply & commissioning of auxillary power supply system of 110 Volts for protection of VCB panel including synthetic rubber chamber complete by using 55 Nos maintenance free lead acid batteries of 2 volts 80 AH capacity, 25 Amps booster and trickle charger complete all as specified and directed.

Supply, installation, testing & commissioning of 11 KV, rated voltage 12kV, 630A, 21kA/3sec, indoor type, non-extensible type, internal arc 21kA for 1 Sec for tank, floor mounted with internal copper bus bars, SF6 insulated, 3 Way RMU consisting of 02 Nos fixed manual 630A VCB's as incomer & 01 No fixed manual 630A VCB's as outgoing with SCADA compatable overload and earth fault protection relay (MFM for VCB Feeders). All live parts, bus bars, VCBs connections of RMU shall be enclosed in one SF6 tank to avoid multiple interconnections. SF6 tank shall be sealed for life robotically welded non magnetic and non ferrite stainless steel Grade 304 of minimum 2.5 mm thick having IP67 degree of protection filled with SF6 gas as insulation with leakage rate less than 0.1% per year tested as per IEC 62271-200. Painting thickness shall be atleast 60microns, Breaker shall be M2 Class-10,000 operations at rated normal current and 10 operations at rated short circuit breaking current. Manual welding or hermetic sealing of tank shall be not be accepted. The unit shall have front cable entry (suitbale for termination of 3C x 180/240 Sqmm cable) for ease of installation and shall have site replaceable bushings for ease of trouble shooting during breakdown.

RMU should be complete with all accessories such as terminal boots, VPIS, cable supports, all front cable terminations, mechanical indications for VCB ON/OFF, Manometer as per with IEC standards 62271-200, 60056, 60129, 60265, 60298, 60420, 60529 and 60694. Altitude of installation upto 1000m as per IEC 60120. Bushings bolted type top mounted outside the tank for connection of external bus bar. Degree of protection shall be IP2X & IP3X for front mimic & cable compartments respectively. Also, the outer enclosure shall cover the full length of the switchgear, to ensure IP-54 protection for outer enclosure. The unit shall be internal arc proof 21kA for 1 sec with AFLR clasification, tested and totally safe for human beings. The gas release & personnel safety from internal arc shall not depend on plinth design. The release of gas to be from the top of the unit, so that, even if the person is operating the unit, opening the cover, & there are personnels near the sides of the RMU / plinth, top release will ensure their safety. The hot gas release, in case of an internal arc, in no case should be from any side or bottom of the unit, as the same is unsafe for the operating personnel / pedestrian or general public.

Bidder shall provide type test report to prove compliance to the Internal Arc fault IAC-AFLR as per IEC 62271-200. Internal arc testing shall be done with enclosure door in open condition with switching devices in operation mode as per specified standard. Rated filling for insulation at 20°C shall be 1.4 bar Pressure absolute. Ambient temperature range shall be +40 deg C to -25 deg C. Location: LSP, DSP and CHESS. (A) Incomer: SF6 insulated motorized breaker module consisting of following accessories: (i) 11 KV, 630 Amps fixed type Vacuum Circuit Breaker module for making and breaking of fault current alongwith disconnector + earth switch and interlocking facility. (ii) Short time current - 21 KA / 3 Sec, breaking capacity - 52 kAp. (iii) Auxiliary contacts - 01 No + 1 NC. (iv) Stored energy mechanism with manual / motorized spring charging, associated closing / tripping coils, integrated non removable spring charging operating handle and ON/OFF push buttons mechanically latched to the mechanism.

(v) Interlocked, arc proof cable box for front termination of the cable suitable upto 1R x 3 Core 185/240 Sqmm, 11 KV XLPE cable with double door arrangement (IP 54 + IP3X) safety interlocked to prevent access to cable termination in live condition. (vi) Numerical based self powered OC + EF Protection Relay, providing over current (Min setting 20%), earth fault (Min setting 10%). (vii) Resin cast, Ring core CTs of suitable capacity for protection (Acc.CI.5P10), installed away from bushings to prevent saturation of core - 01 No. (viii) Potential transformers with HT fuse on primary side and MCB on secondary side for protection and primary voltage 11000 V3v & secondary voltage 110 V3v with burden windings 50 VA, class of winding 1:10. (ix) Digital multi function meter with RS-485 port (A, V, kw, KVA, KWh, PF etc. (x) Suitable site replaceable cable bushings situated not beyond 300mm from cable cover to allow ease of access for installation / testing / replacement purpose. (xi) Cable covers with self interlocking mechanism between doors, earth switch, disconnector and VCB.

(xii) Capacitive voltage indication fixed type system. (xiii) Mechanical indications for breaker ON, OFF, EARTH, Spring charged-discharged. (xiv) Mechanical interlock between incomers. (xv) Battery 2 x 12 volts alongwith battery chargers. (B) Outgoing: SF6 insulated motorized breaker module consisting of following accessories: (i) 11 KV, 630 Amps fixed type Vacuum Circuit Breaker module for making and breaking of fault current alongwith disconnector + earth switch and interlocking facility. (ii) Short time current - 21 KA / 3 Sec, breaking capacity - 52 kAp. (iii) Auxiliary contacts - 01 No + 1 NC.

(iv) Stored energy mechanism with manual / motorized spring garging, associated closing / tripping coils, integrated non removable spring charging operating handle and ON/OFF push buttons mechanically latched to the mechanism. (v) Interlocked, arc proof cable box for front termination of the cable suitable upto 1R x 3 Core 185/240 Sqmm, 11 KV XLPE cable with double door arrangement (IP 54 + IP3X) safety interlocked to prevent access to cable termination in live condition. (vi) Numerical based self powered OC + EF Protection Relay, providing over current (Min setting 20%), earth fault (Min setting 10%). (vii) Resin cast, Ring core CTs of suitable capacity for protection (Acc.CI.5P10), installed away from bushings to prevent saturation of core - 01 No. (viii) Potential transformers with HT fuse on primary side and MCB on secondary side for protection and primary voltage 11000 V3v & secondary voltage 110 V3v with burden windings 50 VA, class of winding 1:10.

(ix) Suitable site replaceable cable bushings situated not beyond 300mm from cable cover to allowease of access for installation / testing / replacement purpose. (x) Cable covers with self interlocking mechanism between doors, earth switch, disconnector and VCB. (xi) Capacitive voltage indication fixed type system. (xii) Mechanical indications for breaker ON, OFF, EARTH, Spring charged-discharged.

Cutting of existing bituminious / PCC road or flooring / plinth protection for laying of GI pipe in road intersection for passing of HT XLPE cable including excavation in any type of soil, returning and filling in and making good top 30cm of the trench by providing PCC 1:2:4 type B1 using 20mm graded stone aggregate to flush with existing road surface complete all as specified and directed.

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