SPECIAL REPAIR FOR REPLACEMENT OF OLD OUTDATED OCB 11 KV WITH VCB 11 KV AT TAG LOCATION GURGRAM UNDER GE (E/M) BASE HOSPITAL DELHI CANTT-10

Amount

Dismantling and taking out old pattern Oil Circuit Breaker unit (Incoming -01 No and outgoing -03 Nos) including disconnecting HT electric connection complete all as specified and directed

Supplying, installing, testing and commissioning Indoor arc flash protected Draw-Out with roll on floor type totally enclosed Vacuum Circuit Breaker Panel , rated for 11 KV, 26.3kA/3-sec, comprising of 01 No. Incomer 630 Amp, and 03 Nos. Outgoing VCB Panels 630 Amp and Bus PT/ Line PTs on panel for each bus section, confirming to IEC 62271-200, Internal Arc Classified IAC AFLR – 26.3kA for 1sec, Accessibility Class LSC2B-PM Class, comprising of 800 Amp, continuous rated Copper insulated busbars and droppers in all bus / breaker/ adaptor and and cable chambers, The busbars to be covered with insulating material, The earthing bus bar is made of electrolytic copper and it runs longitudinally throughout the switchgear Encapsulated feeder connections IS3427 and IS12729. with 01nos. . Rack-In-Rack-Out Handles, structure made from Alu Zinc/GI/powder coated CRCA sheets to prevent corrosion and rusting.The complete panel incl. HT and LT chamber with FRLS wiring and acessories shall be manufactured by approved OEM at its own mancufacturing in house facility, and same will be verified via stage/final inspection and proper HT electric connection, necessary earth and PCC work complete all as specified and directed with comprising following accessories. Note:-system house integrator / channel partner products are not accepted complete . VCB, panels, relays, meters must be of same make for better life cycle optimization.

(A) 01 x Incomer Panel, each comprising of :- (i) 11kV, 630 Amp, 26.3kA/3-sec, Draw-Out Vacuum Circuit Breaker as per IEC-62271-100 with roll on floor type Vacuum Circuit Breaker having 03 Nos. vacuum bottles of same make as of circuit breaker and panel, motorized spring charging mechanism (230VAC) with integral spring charging handle for manual charging, associated push-buttons, anti-pumping feature, and associated Shunt Trip/Close Coils (110VDC). (ii) Current Transformers 11kV, 300/150/1A Core1: Class 5P10, 5VA, Core2: Class 0.5, 5VA, (iii) Potential Transformers, Draw-out type for easy maintenance, 11kV/rt3:110V/rt3, 50VA, Cl.0.5 for meter and Class 3P for protection with associated gun-type HRC fuses and MCBs for HT/LT isolation - complete set per breaker. PT must not be on the top of the panel. It should be either floor rolled type placed at the back side of the panel or to be mounted on the breaker trolley.

(iv) Main Protection Relay shall be numerical IED Relay confirming to IEC60255, having 04CT+04PT Inputs with microprocessor based protection scheme for tripping the breaker on various faults like (a) over-current, earth-fault, Over voltage , Under Voltage of the three phases, (b) Synchronism and Energizing Check before breaker closing to prevent un-syncronized mixing of supplies (c) circuit-breaker-failure alarm, (d) interpanel tripping/blocking signals via GOOSE based peer-to-peer communication, on IEC61850 protocol. (e) Integrted arc flash protection with current and light sensing. Sensor to be placed in CB chamber, Busbar Chamber and Cable chamber. The relay shall be communicable on IEC 61850 GOOSE platform over RJ-45/USB/FO port, and fully integrated with the feeder, internally capturing feeder statuses incl. various status, Line-Current, Line-Voltage, Breaker On/Off/Spring.Chrgd, Trip Circuit Failure (from TCS relay), AC Supply Fail, PT Fuse failure relay, Local-Remote etc. and display locally on a built-in back-lit LCD screen with mimic as a Single-Line-Diagram with power & frequency measurements and suitably labelled status LEDs. Relay setting should be possible through inbuilt software or through addtional software supplied with life time software support by the relay manufacturer.

(v) Metering Equipment including:- (a) 01 x Digital Voltmeter (Acc.Cl.0.5), 01 x Digital Ammeter (Acc.Cl.0.5), (b) 01No. Multi-Function-Meter (Acc.Cl.0.5) shall be provided with LCD display for measuring current, voltage, power, power-factor and energy-parameters, Total Harmonic Distortion and Max. Demand Indication, same shall be communicable on ModBus via RS485 port. (vi) LED Indications :- (a) Breaker ON/OFF/TRIP/Spring-Charged, (b) R-Y-B, (c) DC Available LED with push-button (d) AC Supply Fail (e) Trip Circuit Healthy (vii) 08-Window Annunciator with Hooter to indicate following alarms :- (a) OC Trip, (b) EF Trip (c) Trip Circuit Failure, (d) Inter-Tripping Fault, (e) Synchro-Check. (f) PT Fuse Failure The Annunciator will be complete with required Acknowledge/Test buttons as required

(viii) Control Equipment incl. :- (a) 01 x TNC Switch, (b) 01 x Local/Remote Switch, (c) 01 x Emergency Trip Push Button, (d) MCBs for AC (e) MCBs for DC (f) Heater Switch with Thermostat - 01no. (g) 3-pin socket with ON/OFF switch - 01no. (h) LED Lamp with ON/OFF switch - 01no. (ix) Flush mounted Auxillary Protection Relays incl:- (a) Trip Circuit Supervision Relay, (b) Master trip Relay, (c) DC Supervision Scheme (x) Power Pack (230V AC to 110V DC)

(B) 03 x Outgoing Panel, each comprising of :- (i) 11 KV, 630Amp, 26.3KA/3-sec, Draw-Out Vacuum Circuit Breaker as per IEC-62271-100. Vacuum Circuit Breaker having 03 Nos. vacuum bottles of same make as of circuit breaker and panel, motorized spring charging mechanism (230VAC) with integral spring charging handle for manual charging, associated push-buttons, anti-pumping feature, and associated Shunt Trip/Close Coils (110VDC).

(ii) Current Transformers 11kV, 150-75/1A, or 100-50/1A for 3 breakers as per load ,Core1: Class 5P10, 5VA, Core2: Class 0.5, 5VA - Set of 03 Nos.each/ breaker

(iii) Main Protection Relay shall be numerical IED Relay confirming to IEC60255, having 03 CT Inputs with microprocessor based protection scheme for tripping the breaker on various faults like (a) over-current or earth-fault in any of the three phases, (b) circuit-breaker-failure alarm, (c) interpanel tripping/blocking signals via GOOSE based peer-to-peer communication, on IEC61850 protocol. (d) Integrted arc flash protection with current and light sensing. Sensor to be placed in CB chamber, Busbar Chamber and Cable chamber. (e )Transformer protection (Marshalling Box and Buchhloz relay). The relay shall be communicable on IEC 61850 GOOSE platform over RJ-45/USB/FO port, and fully integrated with the feeder, internally capturing feeder statuses incl. various status, Line-Current, Breaker On/Off/Spring.Chrgd, Trip Circuit Failure (from TCS relay), Local-Remote etc. and display locally on a built-in back-lit LCD screen with mimic as a Single-Line-Diagram with current measurements and suitably labelled status LEDs. Relay setting should be possible through inbuilt software or through addtional software supplied with life time software support by the relay manufacturer.

(iv) Metering Equipment including:- (a) 01 x Digital Voltmeter (Acc.Cl.0.5), 01 x Digital Ammeter (Acc.Cl.0.5) for each outgoing VCB Panel (b) 01 No. Multi-Function-Meter (Acc.Cl.0.5) shall be provided with LCD display for measuring current, voltage, power, power-factor and energy-parameters, Total Harmonic Distortion and Max. Demand Indication, same shall be communicable on ModBus via RS485 port for each outgoing VCB panel. (v) LED Indications for each outgoing VCB Panel - (a) Breaker ON/OFF/TRIP/Spring-Charged, (b) Trip Circuit Healthy (vi) 08-Window Annunciator with Hooter for each outgoing VCB Panel to indicate following alarms :- (a) OC Trip, (b) EF Trip (c) Trip Circuit Failure, (d) Inter-Tripping Fault, The Annunciator will be complete with required Acknowledge/Test buttons as required

(vii) Control Equipment for each outgoing VCB Panel incl. (a) 01 x TNC Switch, (b) 01 x Emergency Trip Push Button, (c) 01 x Local/Remote Switch, (d) MCBs for AC/DC isolation (e) Heater Switch with Thermostat - 01no. (f) 3-pin socket with ON/OFF switch - 01no. (g) LEDLamp with ON/OFF switch - 01no.

(viii) Flush mounted Auxillary Protection Relays incl. (a) Trip Circuit Supervision Relay, (b) Master trip Relay,

(ix) Transformer protection for each outgoing VCB Panel, comprising of :- (a) Oil Temperature high. (b) Winding Temperature high. (c ) Tank oil level low. (d) OLTC oil level low. (e) Buchhloz relay trip or sudden gas and sudden oil pressure relay trip. (f) Pressure relief. (x) Power Pack (230V AC to 110V DC)

Material and labour for Cable jointing kit 11 KV(Earthed) grade cable for indoor termination cold shrink type joint complete with jointing material and accessories suitable for XLPE armoured aluminium conductor HT cable of size 120 Sqmm to 300 Sqmm x 3 core including removing of old termination and necessary cutting of existing cable for new termination. Note: MES will give shutdown for 8 hrs for dismantling and fixing of existing VCBs and for installation,testing,commissioning of new VCBs complete all as specified and directed by E-in-Charge. If time will increase beyond 8 hrs then contractor should arrange alternative arrangement for providing power supply to user . If contractor fail to provide the same , the penalty will be impose for Rs 10000/- per hr and penalty should be recovered from contractor dues.

Flint India

SNOWY ENGINEERING INC