Tender For supply of contactor for 60 kva transformer rated current: 95 a, rated voltage: 690 v ac, main pole: 4, aux. contact: 1no + 1nc, control voltage: 230 v ac (168 v ac - 300 v ac) means 230 v ac +/ 30% with surge suppressor as per rdso l. no. 7.1.108/mssbc dt. 17.09.2021 sr. no. 36 (s1k44) suitable for switchboard cabinet of rdso spec. no. rdso/pe/spec/ac/0184 (rev.1) m/s. abb catalogue no. af116b-40 only. [ warranty period: 30 months after the date of delivery ]
Tender For supply of single phase battery charger , the charger will consists of main transformer d.w.copper winding single phase rectifier to give d.c.output voltage 110v to 150v/60amp input 230v single phase 50hz. the voltage and current will be controlled by fine and coarse control rotary switch 40amp 1pole make-(balson/switchon/kaycee). thecharger will have d.c. output ammeter/voltmeter, input mcb, ac fuse, pilot lamp to indicate mains on fan will be provided for cooling. the charger will be housed in m.s.angle/sheet powder siemens grey cabinet with wheel. [ warranty period: 30 months after the date of delivery ]
Tender For supply of k44 contactor for 60 kva transformer rated current: 200 a, rated voltage: 690v ac, main pole: 4, aux contact: 01no+1nc, control voltage: 230v ac (168 v ac-300 v ac means 230v ac +/-30%) with surge suppressor. confirming to rdso specification no. rdso/pe/spec/ac/0184-2015 (rev. 0) or latest. make: abb (model no.- af140-40-00-13+ cal9-11), schneider ( model no.- lc1d1150046m5n +la4da2u), siemens ( model no.-3tk1042-0au0+ 3tk1930-0b or 3rt13556ap36) or c&s ( model no.- lc1fdp1154+ta1-dn11+la9-09980). firm should submit test report & certificate of authorization from oem [ warranty period: 30 months after the date of delivery ]
Tender For providing of custom bid for services - rate contract of deputation of service engineer for transformer inspection work (as per requirement) of transformer of different rating (irrespective of voltage rating) under damodar valley corporation (dvc) for two years
Tender For tender for supply of enm electricals spares item e e - spout bushing insulator w/stud 800/1250a , magn. contact or coil 110v.170amp3tf 5402 , no volt coil under voltage coil , rose contact , brass cable gland complete , auxiliary transformer 400va pri-500/52 , bshg outgng insultr 11kv , 800/400a , contact fixed
Tender For corrigendum : purchase of various spare parts of vfd panel of emd-4 of 2x250mw, stps, sarni. - various spare parts of vfd panel, 3-pole mccb main switching unit 3vt3 (w/o trip unit) : upto 630a, rated voltage 690v ac, breaking capacity 65ka at 415v ac (20ka at 690v ac), ref. no. 3vt3763-3aa36-0aa0, etu for 3vt3 frame :400a fixed o/l fixed s/c trip unit (release), ref. no. 3vt9340-6ab00, motorized operating mechanism : ac 230v, dc 220v for 3vt3, ref. no. 3vt9300-3mq00, shunt release : ac 230/400/500v, dc 220v for 3vt2 & 3vt3, ref. no. 3vt9300-1se00, 1 no + 1nc for 3vt2 & 3vt3, ref. no. 3vt9300-2af10, control transformer 50va, p-230v, s -110vref. no. ept-h-aaaaa-001
Tender For corrigendum : rectification of electrical safety defects - supply and installation of electrical danger notice boards conforming to is 2551 1982 and the indian electricity rules, 1956. each board shall be fabricated from mild steel plate not less than 1.6 mm thick, vitreous-enamelled in visible red finish, with lettering, figures, and skull-and-crossbones emblem in signal white. plate size 200 150 mm with rounded corners, suitable for 415 v medium-voltage installations, bearing bilingual wording (english and tamil) centrally spaced as per the standard. fixing holes of suitable diameter for rivets shall be provided at the corners. boards shall be permanently affixed in conspicuous positions on distribution boards and panels using corrosion-resistant rivets or equivalent fasteners. the rate shall be quoted per piece inclusive of supply of board, rivets, and complete affixing, inspection, testing, cleaning, recommissioning, and submission of the test report for the lightning protection system installed on a 30 metre-high ms wireless tower, including the removal and replacement of all associated fasteners on the downcomer gi plate, ensuring full compliance with applicable standards and operational safety requirements. , inspection and testing of earth electrodes; reconditioning and refilling of earth pits; removal of corrosion from contact plates; replacement of fasteners; cleaning of earth pit troughs; correction of wall separators for earth pits; painting with yellow colour; fixing of durable identification labels with red-coloured text in the respective troughs; provision of closure slabs; and submission of test reports along with photographic evidence. walls to be provided newly: 5- earth pits with existing walls: 22, refilling of silica gel in 11 kv/415 v step-down transformer breather, ensuring proper colour indication and complete replacement of exhausted, dehydrated, or saturated silica gel., insulation and safety covering of exposed live terminals in the 125 kva dg set and of the outer surface of the tneb ht meter box using pvc/acrylic insulation sheets of adequate thickness, rating, and appropriate size suitable for the respective voltage levels, ensuring full electrical insulation and compliance with safety standards. size; 30x20 inches-1 no. 12x24 inches-1 no.