supply of 11 kv compact sub station with 630 kva crt type dry transformer at shaheed asfaq ullah khan prani udyan ramgarh taal gorakhpur , ht switchgear , 11kv 630amps 21ka for 3 sec . sf6 insulated non-extinsible compact switchgear consisting of two no motorised load break switch and one no . motorised vacuum circuit breaker with microprocessor based self powered relay with series trip , self powered microprocessor based numerical over current relay ( idmtl + inst . ) protection with one no metering chamber . interconnection between ht switchgear and transformer shall be using 1c x 3r x 95 sq . mm aluminium . unarmorured xlpe cable . ( make: schneider / abb limited or equivalent ) , relay will be of any repute make . , cable termination for incoming d module capable for 3c x 300 sq . mm ( 2 nos . ) al armoured cable , transformer , 630kva 11kv/433v dyn11 copper wound cast resin dry type transformer with off load tap links of +5% to -5% @2 . 5% . class of insulation: h , temperature rise limits of 115 deg . c . transformer losses with is tolerances - nll 1 . 3 kw and ll- 6 . 1 kw and impedance 4% with is tolerances . ( make: abb/schneider ) , surge arrestor in the hv side , lt panel - 1000 amps aluminium busbar , incomer from transformer , 1000amps 433v with minimum 50ka 4p fixed manual ( fm ) type air circuit breaker ( acb ) with microprocessor based release for overcurrent , short circuit and earth fault protection . ( make: schneider / abb limited or equivalent ) , r , y , b , on , off , trip indications - led type ( make: technic/essein deinki/binoy ) , multifunction meter of class 1 accuracy ( make:rishabh/conserve/el measure ) , outgoing , 400 amp 3 pole 36 ka mccbs 04 nos , 125 amp 3 pole 36 ka mccbs 02 no . , outdoor enclosure , outdoor type enclosure having construction of galvanised sheet steel of thickness 1 . 5/2mm . the enclosure shall have ip54 degree of protection for ht & lt switchgear compartment & ip34 degree of protection for transformer compartment . the enclosure shall be powder coated . each compartment will be provided with the door and pad locking arrangement . the compartment illumination lamp with door operated switch shall be provided for hv and lv compartment . interlocking between breaker and transformer door . , interconnection and earthing , interconnection between ht switchgear & transformer using 1c x 3r x 95 sq . mm xlpe single core aluminium cable & interconnection between transformer & lt switchgear using aluminium busbars . internal earthing connections including transformer neutral by using 50 x 6mm gi strips as required . , notes and clarifications: , packge sub-station is outdoor plinth mounted type . erection , and civil work for package substation is in scope of css manufacturer . the foundation details will be furnished . , package sub-station will be complete with the internal interconnections & earthing . accessories required for the external connections of ht & lt cables like termination kits , lugs , glands etc & extending of earth bar to earth pits are in scope of css manufacturer .