| 1 | Supplying, Installation, Testing & Commissioning of indoor type floor mounted metal clad, 11 KV VCB panel totally enclosed & fully interlocked, horizontal drawout, horizontal/ vertical isolation floor rolling type breaker as per IS 13118, IEC-62271-100 & 62271-200 & 60694, as amended up to date and additional specifications, having capacities as mentioned below, single break, trip free mechanism, Elecrically charged and auto/manually closing breaker suitable for use on 11 KV, 3 Phase, 50 Hz A.C. supply with short circuit fault level of 500 MVA, rated Short circuit breaking capacity of 26.3 KA for 3 sec and internal arc fault withstand capacity of 26.3 KA for min. 1 sec complete with self contained, fully interlocked, rack in and rack out mechanism, air insulated but encapsulated copper bus bars of 800 Amps capacity, breaker featured with mechanical ON/OFF indicator with hand trip device, spring release coil, shunt trip coil and auxiliary switch of 4 NO+4 NC and equipped with following switchgears and accessories i/c connections suitable for 3 core x 240 sq. mm. XLPE 11 KV cable (cable entry from rear bottom) end termination with heat shrinkable jointing material etc. as required.
Note :
(i) The Panel Board shall be OEM made only. Franchise made MV Switchboards shall not be accepted.
(ii) Cost of end termination not included in this item.
(iii) Panel shall be type tested from NABL accredited labs like CPRI/ ERDA etc. i/c Seismic Compliance Zone-IV and should be internal are tested AFLR (Front, Lateral, rear) protections as per IEC 62271-200.
INCOMER SWITCHGEAR PANEL
a) 1 No. 800 Amp. VCB, 500 MVA, 26.3 KA/3 sec.
b) Spring charged motor - 230 V AC
c) 1 No. withdrawal type 11 KV / 110 Volts three phase PT of Class 0.5 OR 1.0 accuracy for metering, class 5P10 for protection.and 100 VA burden with associated encapsulated HRC fuses for primary isolation, space heater with 1 No. caliberated intelligent multifunction digital panel meter of 0.5 accuracy with multiline display with communication interface port RS485 for giving output on BECNET/ MODBUS protocol of IBMS for recording V, A, KVA, KVAR, KW, KWhr, pf etc. complete with wiring connections etc. as required at site.
d) 1 No. (0-300 A) Ammeter, digital type with selector switch.
e) 1 No. Microprocessor based numerical relay with O/L, E/F and S/C protection.
f) 1 No. Set of dual core dual ratio 3 CTs 150/75/5/5 A of 15 VA burden and accuracy Class 1.0 for metering and class 5P10 for protection.
g) Trip circuit supervision relay.
h) Control switch
i) Indication lamps for ON, OFF, TCH, Auto trip, R,Y,B indication, spring charging.
j) space Heater
k) Digital multi function meter , 96 X 96 mm with operation on MODBUS/ TCP-IP protocol.
l) Emergency push button.
m) 1 set of surge arrestors as per OEM recommendation.
n) Earth switch with making capacity for cable side earthing.
OUTGOING SWITCHGEAR PANEL
a) 2 Nos. 800 Amp. VCB, 500 MVA, 26.3 KA/3 sec.
b) Spring charged motor - 230 V AC
c) 2 Nos. (0-100 A) Ammeter, digital type with selector switch.
d) 2 Nos. Microprocessor based numerical relays with O/L, E/F & S/C protections.
e) 2 sets Set of dual core dual ratio 3 CTs 60/30/5/5 A of 15 VA burden and accuracy Class 1.0 for metering and class 5P10 for protection.
f) Trip circuit supervision relay.
g) Control switch
h) Indication lamps for ON, OFF, TCH, Auto trip, R,Y,B indication, spring charging, push buttons, space heater with thermostatcomplete with all standard accessories for each outgoing as required at site.
i) Hooter
j) Digital multi function meter , 96 X 96 mm with operation on MODBUS/ TCP-IP protocol
k) Emergency push button.
l) 1 set of surge arrestors as per OEM recommendation
m) Earth switch with making capacity for cable side earthing
n) Auxillary relays for protection of chilers.
o) 8 way alarm annunciator window.
p) Power pack with 220 Volt AC input & 24 Volt DC continuous output suitable for closing/ tripping/ indication of HT panel board with 2 Nos. 12 Volts each maintenance free batteries of 100 AH each for all 3 panels ( 1 I/C +2 O/G), charging unit, capacitor bank for emergency delivering for trip system complete with suitable capacity of Ammeter & Voltmeter i/c connections with 2.5 sq. mm FRLS insulated copper conductor cable etc. as required.
q) All necessary items required for completion of panel like MCBs, DBs etc. shall be provided alongwith the panel.etc complete as required. | 1 | Each |
| 2 | Supplying, installation, testing and commissioning of 800 KVA capacity (continuous loading) level 2 rated (Corresponding Level as per BIS amended upto date of receipt of tender) , 11/0.433 KV step down, 3 Phase, 50 Hz, Dyn 11 vector group, ONAN (Oil Natural Air Natural) copper wound transformer (Electrolytic grade 99.9% pure copper, Core made of first grade Cold Rolled Grain Oriented (CRGO) Core grade MOH or better, suitable for out door/indoor applications with On Load Tap Changer (OLTC) on HV side having AVR relay and Remote Tap Changer Control (RTCC) for automatic sensing of incoming voltage, automatic operation of OLTC and facility for remote and manual operation of OLTC HV side in range of +5% to -15% in steps of 2.5%, having cable end boxes on HV side suitable for 3x300 sqmm XLPE cable of 11 KV grade, including bus trunking / LT Cable 1.1 KV grade on LV side including supplying and laying of copper conductor multicore control cable from transformer to HT breaker/panel for safety tripping, complete with all accessories and safety provisions as per relevant IS Code including first filling of filtered dehydrated oil, i/c supplying and grouting of suitable M.S. Channel with all accessories and transformer shall be confirming to IS : 2026 (Part 1 to Part 5), IS : 1180 and as per CPWD specifications complete in all respects etc as required at site. The maximum flux density in any part of the core and yoke at rated voltage and frequency shall be such that the flux density with + 12.5 percent combined voltage and frequency variation from rated voltage and frequency does not exceed 1.9 Tesla. The permissible temperature-rise shall not exceed 35 0C for oil and 40 0C up to 200 KVA and 40 0C for oil and 45 0C for above 200 KVA for winding. Inside of tank shall be painted with varnish or liquid resistant paint. For external surfaces one coat of thermo setting powder paint or one coat of epoxy primer followed by two coats of polyurethane base paint shall be used. IS: 1180 (Part 3) shall be referred to for paint thickness for normal to medium corrosive atmosphere. For highly polluted atmosphere and special application external paint work shall be as per direction of Engineer-in-Charge. Design ambient condition: a) air temperature 50 0C, b) Relative Humidity 90 % Max, c) Seismic Zone as per location of site, d) Altitude as per location/site. Noise level Shall not exceed limits as per NEMA TR-1 with all accessories running measured as per IEC 551 / NEMA standard. The transformer should have QR code which should contain drawing, test report OEM manual, Geo- Tag of manufacturing location etc. Marking Each transformer shall be provided with rating plate made of anodized aluminium/ stainless steel material securely fixed on the outer body, easily accessible, as per IS: 1180 Part-3. The entries on the rating plate shall be indelibly marked. Fitting and Accessories : The following fittings shall be provided:- a) Two earthing terminals with the earthing symbol b) Oil level gauge indicating oil level at minimum, 30 C and maximum operating temperature; c) Air release device (for non-sealed type transformers) d) Rating and terminal marking plates; e) Silica gel breather f) Drain-cum-sampling valve ( nominal size thread, IS 554) preferably steel with plug for three phase transformers; g) Thermometer pocket with cap; h) Oil filling holes having (1 nominal size thread) with cover (for sealed type transformers without conservator); i) Lifting lugs for the complete transformer as well as for core and winding assembly; j) Pressure relief device or explosion vent above 200 kVA; k) One filter valve on the upper side of the tank (for transformers above 200 kVA); l) Unidirectional flat rollers (for transformers above 200 kVA); m) Inspection hole (for transformers above 200 kVA); n) HV side neutral grounding strip (where one of the HV bushing terminal is connected to earth); o) Buchholz relay for transformers above 800 kVA. p) Arcing horns or suitable rating lightning arrestors for HT side 3 Nos. q) Bird guard; r) Oiltemperature indicator and winding temperature indicators for transformers above 200 kVA with suitable tripping mechanism abovepermissible limit s) Jacking pads (for transformer above 1 600 kVA); t) Additional Neutral separately brought out on bushing for earthing. u) Magnetic oil level gauge (for transformer above 1600 kVA) with low oil level alarm contact; v) Non return valve (for conducting pressure test); w) Pressure relief device or explosion vent x). Monogram Plate y) Inspection cover z). Detachable type radiators with top and bottom shutoff valve. aa) Oil Conservator with Oil level indicator, minimum level marking and drain plug for all transformers of capacity 50 KVA and above. bb) Necessary hardware, clamps, lugs etc. for termination on HV/MV etc. for all transformers. | 2 | Each |
| 3 | Sub Head II - HT Cable
Supply of 11 KV 3 core x 240 sq mm Stranded Compact Circular Aluminium Conductor, Conductor Screen With Extruded Semi Conducting Compound, XLPE Insulated, Insulation Screening with extruded Semi Conducting Compound in combination with Copper Tape, cores laid up, innersheath of PVC tape, galvanised flat steel strip armoured and overall PVC Sheathed Cable conforming to IS: 1554 (Part-2) 1988 amended upto date. Cross linked polyethylene (XLPE) insulated, PVC sheathed conforming to IS: 7098 (Part-2) -1985, 2011 (Reaffirmed 2021) amended upto date.
3C X 240 Sq mm
| 80 | Meters |
