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Description

Overhauling And Maintenance Of 3.3kv, Ngef Make Locb Circuit Breakers

Tendering Authority: Heavy Water Board

India, Tamil Nadu, Tuticorin

NTID

29363748

Last Date For Submission

03 Nov, 2022

Closing Date

03 Nov, 2022

BOQ Items Total Items : 17 | Total Qty : 177
# Item Quantity Units
1 Drawing out of EKU TYPE, 3.3KV, 1250A, NGEF make circuit breakers, discharging of springs, removal of pole heads, opening of inside pole for fixed and moving contacts, inspection of guide rollers and arc quenching systems replacement of defective items, replacement of oil seals and O rings and assembling and testing of individual circuit breakers as per technical specifications. Required dowell pin, circlip, o rings, split pin etc. for replacing in driving mechanism is in contractor scope. 21 Nos
2 Drawing out of EKU type, 3.3KV, 2500A, NGEF make circuit breakers, discharging of springs, removal of pole heads, opening of inside pole for fixed and moving contacts, inspection of guide rollers and arc quenching systems replacement of defective items, replacement of oil seals and O rings and assembling and testing of individual circuit breakers as per technical specifications .Required dowell pin, circlip, o rings, split pin etc. for replacing in driving mechanism is in contractor scope. 3 Nos
3 Supply of necessary spares as per list below suitable for using in driving mechanism,poles etc of EKU type 3.3KV, 1250A /2500A, NGEF make LOCB circuit breakers as per technical specifications. i. Dowel pin 3 25 - 3 Nos ii. Dowel pin 3 32 - 3 Nos. iii. Split pin 1.2 12 - 4 Nos. iv.Circlip A 12 00 000 3832 -4 Nos. v. Circlip A 16 00 007 8424 - 2 Nos. vi. Dowel pin 4 12 -2 Nos. vii. Compression spring 41 1633 0016 -2 Nos. viii. Rubber Washer 4mm thick (41 1414 0012) -3 Nos. ix. Molycote grease - 1 kg x. O ring 41 1614 0014 -15 Nos. xi. O ring 41 1614 0008 - 4 Nos. xii. O ring 41 1614 0009 -7Nos. xiii. O ring 41 1614 0010 -4 Nos. xiv. O ring 41 1614 0011 -4Nos. xv.Sealing ring 41 1614 0012 (4 mm thick) -4 Nos. xvi.Washer 41 1614 0002 (4 mm thick) -4 Nos. xvii. Circlip A 10 00 4343 0001 -2 Nos. xviii. Dowel pin 5 40 -4 Nos. xix. Dowel pin 8 40 -4 Nos. xx. Split pin 3.2 18 -4 Nos. xxi. Scortch bright 6" 9" -10 Nos. 1 Set
4 Supply of suitable size moving contact tip for EKU type 3.3KV, 1250A /2500A, NGEF make LOCB circuit breakers. Note: contct tip shall be electrolyte grade copper, its dimensions shall be same as that of existing one. 3 Nos
5 Supply of arc chute suitable for replacing in EKU TYPE, 3.3KV, 2500A, NGEF make LOCB circuit breaker as per technical specifications. 2 Nos
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