SITC OF 500 KVA TRANSFORMER AND RING MAIN UNIT AT JAL SANSADHAN BHAWAN CIVIL LINES, KOTA

SITC of 3 /4 pole current limiting Moulded case circuit breaker (MCCB) made of flame retardent & heat resistant material having following current rating, short circuit breaking capacity at 440/415 V, 50 Hz; O/L & S/C settings , conforming to IS/IEC 60947 P -2 :2003 with front face and centralised adjustable, trip free mechanisum, true contact position indicator, designed for both horizontal & vertical mounting without any adverse effect on electrical performance, suitable for operation from 50 to 55 degree and without derating upto 40 degree, pollution degree 3, having positive isolation capability, push (test) to trip, trip time less then 10 ms under s/c condition, Breaking capacity Ics = 100% Icu. U imp =8 KV, rated insulation voltage 690V. provision for UVR , shunt trip , earth fault trip, door interlock, pad lock & rotary handle ( to be paid extra) , including making connections etc. as required. OEM shall have submit NABL / CPRI / ERDA/ Intertek accrediated lab type test certificate. 4 pole MCCB With Thermal Magnetic release 630 Amp , 50 kA, adjustable O/L & adjustable S/C setting,

Providing & Laying XLPE insulated three core Armoured Aluminium cable for working voltage 11 K.V.(E) confirming IS :7098 P - 2 with H4- Grade electrolytic aluminium conductor confirming to IS: 8130 class-2 of purity >99.6 %, Insulation Screening: Extruded Semiconducting Compound followed by helically wrapped Copper Tape, round / flat strip armouring of cables , Inner / outer sheath PVC type ST-2 confirming to IS:5831 in existing RCC pipe / Hume Pipe/ Stoneware Pipe/ PVC pipe/ open duct/cable trench / Cable tray (with cable tie) including testing etc. as required of following size. 3 core 185.0 Sq.mm

Providing & making heat shrinkable type indoor/outdoor/straight through terminations/ joint kit suitable for 11 KV / 33 KV (Earthed) cable with required components, prepration of cable ends. Type test report should be as per IS13573:2011 including testing etc. as required of following sizes. 11 KV End Termination Kit Outdoor type 3 core 120/150/185 Sq.mm

SITC of Strip in Pipe Earthing using hot-dip galvanized 'B' class G.I. pipe, as secondary conductor. The system shall incorporate a crystalline conductive compound between the primary and secondary conductors to enhance conductivity and long-term stability. of following size and length and as per point mentioned (a), (b), [c), (d), (e) (f) as below

Supply & Laying following size earth strip in horizontal or vertical run in surface by means of Earth strip DMC Insulator including riveting/ soldering/ welding, Jointing shall be done by overlapping double the width of strip and with 2 set of Brass (for Cu strip) / GI (for GI Strip) nut bolt & spring washer spaced at 50cm making connection etc. as required. 25mm x 5mm tinned copper strip

Supply & Laying following size earth wire in horizontal or vertical run in ground/surface/recess including riveting, soldering, saddles, making connection with GI/Cu purity purity >95% thimble etc. as required. 8 SWG copper Wire

Supply installation testing & Commissioning of Copper wound distribution Transformer of following rating and % Impedance, 11/0.433 KV Delta-Star Connected, Vector Group Dyn 11, ONAN Cooled losses as per IS 1180 part I 2014 (Fourth Revision) Level-1, including standard accessories like conservator with prismatic oil level gauge , silica gel breather, Bucholz relay, pressed steel radiator fins, Radiator Valve(above 800 KVA) Suitable size HT cable box, LT cable box or Busduct adaptor box, Off -LTC ( +5% to - 7.5%in steps of 2.5 %), temperature rise of 40 degree C in oil / 45 degree C in winding , drain valve, Air release device, Dial type Oil & Winding Temperature gauge with alarm & trip contacts, first filling of transformer oil as per IS:335-1953, Epoxy primer and PU based paint as Top coat, Unidirectional rollers for rating up to 800 KVA & bi- directional above 800 KVA rollers with locking arrangement etc. as required. (On Existing RCC foundation/ Steel structure) Factory Tests: The Transformer shall be subjected to routine factory tests (as per IS:2026 and IS:1180) and Following tests shall also be carried out on each transformer(a) Ratio test on each tapping. (b) Resistance of windings at principal and all taping. (C) Insulation resistance of the winding between HV to earth / HV to LV / LV to earth. (d) Vector group test. (e) Magnetic Balance test in presence of departmental Engineer. Transformer shall also be tested in CTL of discom (up to 500 KVA) before charging & complete installation must be certified from Electrical Inspectorate office as per Indian Electricity rule, (CTL testing charges and Electrical Inspectorate office charges shall be reimbursed to the contractor) Note : Note: Manufacturer's in house testing facilities accredited by NABL shall be applicable above 500 KVA Transformers. 500 KVA with % Impedance 4.5

SITC of 11kV 630 Amps 21KA for 3 Sec. SF6 insulated, outdoor duty (IP54) , Extensible / Non extensible type Ring main unit (RMU) manually operated in combination of VCB modules and Load Break switch consisting of Copper busbar in SF6 insulated stainless steel Outdoor enclosure of thickness of 2 mm and tank of stainless steel Outdoor enclosure of thickness 3mm with manometer. The HV switchgear and control gear should be confirming to IEC-62271-100, IEC-62271-200-2003 & IEC-60694-1996. The RMU should be internal arc tested for 21KA for 1Second with IAC-AFL classification for both Cable chamber and gas tank as per IEC 62271-200 and LBS to be rated for class E3 as per IEC 62271 - 103. Vacum Interrupter should be same as used during type test of RMU. Each feeder of RMU should have voltage presence indicator. and VCB feeder should consist of 1 no. microprocessor based Self powered numerical relay with over Current/ earth fault & short circuit protection with each VCB feeder, 3 Nos. Protection CT shall be of Burden 2.5VA, ratio 50/1A, Class of Accuracy class 5P10 for O/C and E/F protection for each VCB. Load break switch feeder shall have Fault Passage indicator, Right angle boots for all the feeder Modules, Remote trip, Emergency Stop, Cable cover interlocking, Trasnformer protection tapo card etc. All the type test certificates as per IEC and CEA from Third party NABL / CPRI / ERDA accrediated lab to be submitted. (Cost of RCC Foundation / Steel Structure to be paid Extra) Extensible 3 way RMU with 1 no. VCB & 2 No. Load Break Switch

(d) Wiring between components within switchgear and Incoming / outgoing cable shall be done through the terminal block only. Direct connection shall not be permitted. Each terminal block shall be one piece moulded, barrier type, 650 volt grade, complete with washers, heads, studs with two nuts and identification strips and shall have adequate continuous current rating. For tap-offs, adjacent terminals with shorting strips shall be used. 10% Spare terminal blocks shall be provided. Wire identification on marking strip shall correspond to the designation of the wiring diagrams. All wire terminals on the equipment shall also be marked with designation corresponding to those of the wiring diagram. (e) All wiring shall be enclosed in plastic channels and neatly bunched and closed in metering chamber, Wiring between terminals of various devices shall be ‘point to point’ (no wire splitting or tee connections) with wires neatly trucked along the back of the panels, adequately supported to prevent sagging. (f) Floor mounted panel shall be mounted on Base frame of ISMC channel size 100 x 50 x 5 mm ( to be paid Extra ) (g) Tests: The insulation resistance (with 1000 V Megger) and High voltage Power frequency test (by applying a voltage of 2.5KV for one minute) shall be measured between phases, between phase and neutral and between phase and earth. both before and after high voltage power frequency test. The insulation resistance shall not be less than three megaohm. CT Secondary current injection test shall also be carried out. (h) only outer surface area on all sides shall be measured & panel to be fabricated only from CPRI approved fabricator only (CPRI type Test certificates for Temp. rise test, Short circuit test for 50 kA and IP test is to be submitted)