Electrification work in Auditorium Building at University of Kota

S I T C of star rated Aluminium wound distribution Transformer of following rating 11/0.433KV Delta-Star Connected, Vector Group Dyn 11,ONAN Cooled & as per BEE star - 1 ( Correspnding level as per BIS amended upto date of receipt of tender) & BIS approved as per IS 2026- 1977 & losses as defined as per 2014 (Fourth Revision) Level-1 including standard accessories like conservator, silica gel breather, radiator, fins, HT cable box & LT cable boxes, temperature rise in winding/oil 35-40 degree C upto 200 KVA & 40-45 degree C for above 200 KVA, ISI marked drain valve, Dial type Temperature gauge, first filling of transformer oil as per IS :335-1953, Epoxy based paint, undirectional rollers as required including carrying of pre-commission Testing & Charging of Transformer complete in all respect . Factory Tests : The Transformer shall be subjected to routine factory tests (as per IS:2026 and IS:1180) in OEM's own lab and same shall be witnessed by Department engineer. Site Tests : Following tests shall be carried out on each transformer at site by OEM engineer in presence of department's site engineer:- a) Ratio test on each tapping.b) Resistance of windings at principal and all tapings.c) Insulation resistance of the winding between HV to earth / HV to LV / LV to earth.d) Vector group test.e) Magnetic Balance test. Transformer shall be tested from CTL of discom before charging of transformer & complete installaion must be certified from Electrical Inspectorate office as per Indian Electricity rule, (CTL testing charges and Electrical Inspection charges shall be reimbursed by the department to the contractor)

630 KVA with Off -LTC (+5% to - 10% @ 2.5%) % Impedance 4.5

Supply & Installation of D.P. Structure With AIR BREAK SWITCH having following specifications A, B, C, D, E.

A) Double pole structure on 2 no ISMB ( I beam ) of size 150 x 75 mm x 8 mm, 9 mtr length using MS channel each of size 100 mm x 50 mm x 2500 mm ( 3 No. ) and of size 75 mm x 40 mm x 2500 (4 No.) mm complete in all respect with nuts, springs washers, clamps as required.

B) Off load type gang operated 3-pole horizontal flute type switch suitable for 11KV ; 400A ,3-ø, central post rotating double break isolator complete with MS hardware , copper moving & fixed contact ,assembly of 9 nos pin insulator , 25 mm ‘B’ class GI pipe of suitable length for operation.

C) 3nos Vertical / Horizontal mounted 11kv horn gap fuse set /drop out 11kv barrel fuses mounted on 6no pin insulators

D) 3 piece non linear resistor type. lighting arrestor of approved make suitable for 3 wire, 11kv Overhead line with rated voltage of 9kv rms & nominal discharge current rating of 5 kA & complete with galvanized clamping arrangement GI bolts, nuts, washer etc as required.

E) 3 no 11kv ACSR conductors mounted on pin type insulators as required.

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