Repair/Maintenance Of Rmus , Distribution Transformer , External Electrical Distribution System Including Repair/Calibration Of Relays , Meters And Other Allied Works At Ctw , Ins Viswakarma , Bv Yard , Old Mov , Abe Park , Cqae Under Age E/M No

Tender Notice

26592691
Repair/Maintenance Of Rmus , Distribution Transformer , External Electrical Distribution System Including Repair/Calibration Of Relays , Meters And Other Allied Works At Ctw , Ins Viswakarma , Bv Yard , Old Mov , Abe Park , Cqae Under Age E/M No
Indian
Andhra Pradesh
12-01-2021
01-02-2021
02-02-2021

Tender Details

Repair/Maintenance Of Rmus , Distribution Transformer , External Electrical Distribution System Including Repair/Calibration Of Relays , Meters And Other Allied Works At Ctw , Ins Viswakarma , Bv Yard , Old Mov , Abe Park , Cqae Under Age E/M No-Ii Ge Ui

Key Value

Document Fees
INR 500 /-
EMD
INR 82000.00 /-
Tender Value
INR 41 Lakhs /-

Attachment

FileName File Description File Size
0E642087-58A0-4850-9CCB-A58A5E7D93AA.html Tender Notice-Tender Notice 0
8283Tender.pdf Tender Document-Tender Documents 729.21
8283CREDIT.pdf Tender Document-Schedule of credit 128.43
BOQ_460004.xls Tender Document-BOQ 1888.00
Tendernotice_1.pdf Tender Document-NIT 216.72

Other Information

Attachments
Additional Details Available on Click
✓ Tendering Authority
✓ Publication Document
(Tender Document / Tender Notice )

BOQ Items

NAME OF WORK : REPAIR / MAINTENANCE OF VCB'S, RMU'S, DISTRIBUTION TRANSFORMER, EXTERNAL ELECTRICAL DISTRIBUTION SYSTEM INCLUDING REPAIR / CALIBRATION OF RELAYS, METERS AND OTHER ALLIED WORKS AT NAD TECHNICAL AREA AND NAD COLONY RESIDENTIAL AREA UNDER AGE E/M NO II OF GE (U-I), VISAKHAPATNAM.
Sl. No. Item Description Item Code / Make Quantity Units
1 1 M&L for disconnecting carefully electrical connection from both HT/ LT (primary & secondary) sides of the transformer, keeping them at safe side and taking out the transformer/Voltage stabiliser indoor/ outdoor type of capacity 500 KVA to 750 KVA, 11 KV/433KV, step down any make for carrying out complete overhauling which shall comprise of the following:- 2 Each Job
2 1.01 a) M&L for lifting, transporting, handling, the transformer to workshop and opening top cover of the transformer by unscrewing nuts, bolts, washers etc. including disconnecting core assembly from HT/ LT bushing and lifting the same gently and taking out from the shell (container/ body) of the transformer.
3 1.02 b) M&L for draining out transformer oil from the above said transformer in the suitable capacity of container /drums and keeping it in safe custody for reuse.
4 1.03 c) M&L for cleaning the transformer body from inside, removing deposited dirt/ sludge/ foreign particles etc. from the bottom/ body of the transformer and drying up the shell from inside before refilling of the transformer oil.
5 1.04 d) M&L for cleaning and washing thoroughly core and windings of the transformer by hosing down with clean dry oil conforming to IS 335/1983, removing deposited dirt/sludge/foreign particles from the windings/ core, thorough inspection of windings, providing insulations to leads and terminals, heating/ drying/ baking complete carefully and thoroughly inside the heating chamber at suitable temperature to obtain required value of insulation resistance etc. all as directed by Engr-in- charge.
6 1.05 e) Lifting and refixing core assembly inside the transformer shell gently and carefully, connecting primary/ secondary/ Neutral connections to the bushings assembly, fixing of tap change over including tightening of nuts, bolts, washers of the core to reduce humming noise all as directed.
7 1.06 f) Refilling the filtered transformer oil in the shell of transformer complete.
8 1.07 g) Refixing the top cover including replacement of cork sheet/ gasket 8mm thick, tightening of nuts/ bolts/ washers etc. and replacement of breather with silica gel crystal type all as directed by Engr-in charge
9 1.08 h) Lifting/ shifting to the place from where removed or to any location as directed and re-installing the transformer including connecting primary/ secondary/ neutral connections etc. all as directed by Engr-in-Charge.
10 1.09 j) The inspection of transformer shall involve:-\ni) Checking of all clamps, nuts, bolts including core bolts & cover fixing bolts.\nIi) Checking all brazings, joints, tap heads and connection joints.\niii) Checking all jumpers, terminations/ connections inside the transformer.\niv) Checking the Bucholtz relay/ conservator MOG if any.\nv) Painting of transformer complete with two coats of synthetic enamel paint externally transformer shell complete all as directed by Engr-in-Charge.\n(vi) Inspection of tap changer, checking the moving and fixed contacts for contact wear and connection to winding.
11 1.1 k) Conducting the tests on core and windings as per IS like ratio, magnetic imbalance, short circuit etc. in presence of Engr-in-Charge and test results shall be signed both by the contractor and Engineer -in-Charge and kept on record.
12 1.11 Note:- \n(i) Any damage to insulators/ bushes/ windings etc. while in the custody of the contractor shall be made good at no extra cost to Department. The serviceability of the transformer shall be checked and confirmed by the contractor before taking into his custody.\n(ii) M&L for rewinding/ re-insulation of HT/ LT (primary/ secondary) coils, bushes, studs, Transformer oil, cable box, replacement of bucholtz relay/ MOG if any etc will be measured and paid separately.
13 2 All as per Item No. 1 herein before but transformer/Voltage stabiliser indoor/ outdoor type of capacity 250 KVA to 400 KVA 2 Each Job
14 3 All as per Item No. 1 herein before but transformer/Voltage stabiliser indoor/ outdoor type of capacity up to 200 KVA 2 Each Job
15 4 All as per Item No. 1 herein before but transformer/Voltage stabiliser indoor/ outdoor type of capacity 2500 KVA to 5000 KVA 1 Each Job
16 5 Filtration of transformer oil of transformers/ FRMUs installed at various locations to achieve di-electric strength not less than 60 KV at 2.5mm gap as per relevant IS with portable filtration plant, testing of the oil for the di-electric strength before filtration and after filtration complete all as directed by the Engineer-in-Charge. 8000 Litre
17 6 Supply and topping up of transformer oil with di-electric strength not less than 60 KV in to the conservator tank/ body tank of the transformer/ OCB/ FRMUs etc at various locations complete all as directed by the Engineer-in-Charge. \n[Make: Power oil/ Transol/ Sabitha Chemicals] 400 Litre
18 7 M&L for rewinding of distribution (HT/LT) transformers of capacity ( 400 KVA to 750 KVA) by winding the defective coils with new copper wire as per I.S. of same gauge and existing size together with new insulated materials/ bracings before placing in to the transformer and assembling the coil with new insulation and fitting the coils in the chamber, testing and commissioning the transformer and recording the test results complete all as directed.\n[Note: M&L for re-insulation of serviceable coils will be measured & paid separately under relevant items.] 180 KG
19 8 M&L for re-insulating windings of HT/ LT distribution transformers of capacity ( up to 350 KVA) / size/ type by strip opening of HT/ LT coils (i.e. Primary/ secondary coils) from core assembly safely, unwinding the HT/ LT coils (i.e. Primary/ secondary coils) complete, removing the old defective insulation paper and replacing with new DPC insulation to the copper conductor, re-varnishing of the windings with super varnish including heating/ drying/ backing complete carefully and thoroughly inside the heating chamber at suitable temperature to obtain required value of insulation resistance etc. all as per IS 1986-87 and as directed by Engr-in- charge. 240 KG
20 9 M&L for rewinding of HT Tap winding for 33KV/11KV (5 MVA) power transformer HV coil (Primary side) of any capacity/type by winding defective coils with new copper wire with kraft paper insulation as per IS of same gauge and existing size together with new insulated materials/bracings before placing in to the transformer and assembling the coil with new insulation materials, varnishing and fitting the coils in the chamber,testing and commissioning the transformer and recording the test results complete all as directed.\n 350 Kg
21 10 M&L for rewinding of HT Tap winding for 33KV/11KV (5MVA) power transformer LV coil (Secondary side) of any capacity/type by winding defective coils with new copper wire with kraft paper insulation as per IS of same gauge and existing size together with new insulated materials/bracings before placing in to the transformer and assembling the coil with new insulation materials, varnishing and fitting the coils in the chamber,testing and commissioning the transformer and recording the test results complete all as directed.\n 220 Kg
22 11 Disconnection of the Distribution Transformer from HT and LT supply mains, removing of Bus duct and Bus bar, Leakage arresting to following transformers by draining out of oil, after arrangement of necessary empty oil drums, buckets etc., dismantling of top cover and accessories, dismantling of LT bushings by disconnecting leads/jumpers from inside, replacement of gaskets and oil seals and re fixing of the LT bushings, making internal and external connections, replacement of cover gasket and accessories, refixing of accessories and cover, filling of transformer oil complete, and making cable connections and for energising the transformer. (Cost includes materials like gaskets and oil seals and labour, the Bushing and bushings rods to be measured and paid separately).
23 11.01 (a) 2500 to 5000 kVA 1 Each Job
24 11.02 (b) 500 kVA to 750 kVA 1 Each Job
25 11.03 (c) 250 kVA to 400 kVA 2 Each Job
26 11.04 (d) up to 200 KVA 1 Each Job
27 12 Disconnecting the HT/LT connections of following transformers i.e (Bus duct / Cable bunch) keeping all the cables out from the HT/LT sides, physically checking the transformer for healthiness, performing the transformer tests like Meggar test, Ratio Test, Magnetic Balance test and short circuit tests for checking the condition of transformer complete and test results shall be submitted by the contractor. Note:- (i) If the transformer found satisfactory then HT/LT connections shall be done by the contractor and has to charge the transformer. (ii) If the transformer fails in these tests then the contractor has to shift the transformer for winding /overhauling. (iii) Cost of Transportation / winding / overhauling is exclusive of rate quoted by the contractor.
28 12.01 (a) 2500 kVA to 5000 kVA 1 Each Job
29 12.02 (b) 500 kVA to 750 kVA 1 Each Job
30 12.03 (c) 250 kVA to 400 kVA 2 Each Job
31 12.04 (d) up to 200 KVA 1 Each Job
32 13 Shifting the Transformer from existing site to another site within 3 Km distance range by Dismantling of HT and LT cables, jumpers and bus bars including LT busbar cable boxes and close the transformers for loading in to Vehicle with the help of crane, transportation to another site, unloading, cable connections both HT and LT, testing and commissioning.
33 13.01 (a) 500 kVA to 750 kVA 1 Each Job
34 13.02 (b) 250 kVA to 400 kVA 1 Each Job
35 13.03 (c) up to 200 KVA 1 Each Job
36 14 M&L for dismantling the LT/HT connections, earthings, controlling cables carefully from the transformer installed on plinth of NAD yard and loading the 2.5 MVA/5 MVA transformer of minimum 6675 Kg/10200 kg respectively weight with cranes of capacity not less than 20 tonnes and above on the transporting trolley vehicle for shifting to workshop and after repair of the same reinstall on the plinth all as directed by Engr-in-charge. 1 Each Job
37 15 M&L for replacement of Silica gel breather assembly complete with breather unit and silica gel including connecting with proper necessary gaskets if necessary, including removing the unserviceable breather assembly.
38 15.01 (a) 2500 kVA to 5000 kVA 2 Each
39 15.02 (a) 500 kVA to 750 kVA 2 Each
40 15.03 (b) 250 kVA to 400 kVA 2 Each
41 15.04 (c) up to 200 KVA 2 Each
42 16 Supply and filling Silica gel to the transformer breather of transformer including removing the unserviceable silica gel 3 KG
43 17 M&L for replacement of Conservator tank complete unit and including connecting with proper necessary gaskets if necessary, including removing the unserviceable Conservator tank.
44 17.01 (a) 500 kVA to 750 kVA 1 Each
45 17.02 (b) 250 kVA to 400 kVA 1 Each
46 17.03 (c) up to 200 KVA 1 Each
47 18 M&L for replacement gun metal drain valves of transformers of following capacities including dismantling old one:- MAKE :- UPADHYAY/ LEADER/ ZOLOTO
48 18.01 (a) 500 kVA to 750 kVA 1 Each
49 18.02 (b) 250 kVA to 400 kVA 2 Each
50 18.03 (c) up to 200 KVA 2 Each
51 19 Supply and fix in repairs off load tap changer assembly suitable for any make with 7 tapping position including opening top cover, conservator etc.
52 19.01 (a) 500 kVA to 750 kVA 1 Each
53 19.02 (b) up to 400 KVA 1 Each
54 20 Supply and replacement of (WTI) Winding Temperature Indicator of following distribution transformers including dismantling old one
55 20.01 (a) 500 kVA to 750 kVA 2 Each
56 20.02 (b) up to 400 KVA 2 Each
57 21 Supply and replace LT Bushings made out Porcelain and suitable length/size all as per existing, complete the following capacity distribution transformers of any make/size/type all as directed including dismantling old one.
58 21.01 (a) 500 kVA to 750 kVA 3 Each
59 21.02 (b) 250 kVA to 400 kVA 3 Each
60 21.03 (c) up to 200 KVA 3 Each
61 22 Supply only HT Bushings made out Porcelain and suitable length/size all as per existing, complete the following capacity distribution transformers of any make/size/type all as directed including dismantling old one.
62 22.01 (a) 500 kVA to 750 kVA 3 Each
63 22.02 (b) 250 kVA to 400 kVA 3 Each
64 22.03 (c) up to 200 KVA 3 Each
65 23 Supply only LT Bushing rod made out of Brass/Copper with threading and suitable length/size all as per existing metal parts / bolts etc, complete the following capacity distribution transformers of any make/size/type all as directed including dismantling old one.
66 23.01 (a) 500 kVA to 750 kVA 3 Each
67 23.02 (b) 250 kVA to 400 kVA 3 Each
68 23.03 (c) up to 200 KVA 3 Each
69 24 Supply only HT Bushing rod made out of Brass/Copper with threading and suitable length/size all as per existing including metal parts / bolts etc, complete the following capacity distribution transformers of any make/size/type all as directed including dismantling old one.
70 24.01 (a) 500 kVA to 750 kVA 3 Each
71 24.02 (b) 250 kVA to 400 kVA 3 Each
72 24.03 (c) up to 200 KVA 3 Each
73 25 M&L for replacement of (OTI) Oil Temperature indicator of following distribution transformers including dismantling old one.
74 25.01 (a) 500 kVA to 750 kVA 2 Each
75 25.02 (b) 250 kVA to 400 kVA 2 Each
76 25.03 (c) up to 200 KVA 2 Each
77 26 M&L for providing new cable box made out of MS sheet of thickness not less than 3.15 mm including fabrication works, welding etc. to suit the LT/HT side of existing transformer size, including nuts, bolts, cable glands, termination of existing cables etc., all as directed by the Engineer-in-charge for the following capacity transformers:
78 26.01 (a) 500 kVA to 750 kVA 1 Each
79 26.02 (b) 250 kVA to 400 kVA 1 Each
80 26.03 (c) up to 200 KVA 1 Each
81 27 M&L for replacement of Drain plugs to valves/conservator caps of the sizes 3/4", 1", 1.5" valves and plugs of the following capacity distribution transformers of any make/size/type all as directed including dismantling old one.
82 27.01 (a) 500 kVA to 750 kVA 2 Each
83 27.02 (b) 250 kVA to 400 kVA 2 Each
84 27.03 (c) up to 200 KVA 2 Each
85 28 M&L for replacement of Oil gauge glass with gaskets of the following capacity distribution transformers of any make/size/type all as directed including dismantling old one.
86 28.01 (a) 500 kVA to 750 kVA 2 Each
87 28.02 (b) 250 kVA to 400 kVA 2 Each
88 28.03 (c) up to 200 KVA 2 Each
89 29 M&L for preparation of old painted surfaces of transformers with coarse cloth/ brush and painting throughout externally on exposed surfaces with two coats of smoke grey colour synthetic enamel paint including writing of transformer details on plinth in white enamel paint on black enamel paint back ground complete including one coat of white wash for base foundation all as specified and directed by Engineer-in-charge for the following capacity in-door/ out-door type transformer:-
90 29.01 (a) 500 kVA to 750 kVA 2 Each
91 29.02 (b) 250 kVA to 400 kVA 2 Each
92 29.03 (c) up to 200 KVA 2 Each
93 30 Clearing of bushes/small plants up to root level around and surroundings areas E/M installations (i.e.Two Pole/ Four structures, outdoor-substation yards, pump house & Misc E/M installations etc) including surface dressing n.exc 15 cm deep and removing debris to a distance n.exc 50m complete all as directed 2000 Sqm
94 31 Supply and lay (loose filling) Graded coarse aggregate of size 40 mm dia size in outdoor sub-station yards all as directed 80 Cum
95 32 Supply and lay (loose filling) Graded coarse aggregate of size 20 mm dia size in outdoor sub-station yards all as directed 80 Cum
96 33 Excavation in trenches n.exc 1.5mtr wide and not exc 1.5mtr depth and getting out in Soft/loose soil all as directed. 80 Cum
97 34 Returning and filling in of excavated material ay type including spreading, leveling, watering and well ramming in layers not exceeding 25 cm each. 53 Cum
98 35 Removal of surplus excavated material of any type not exceeding 50 mtr and depositing where directed at a level not exceeding 1.5 mtr above the starting point. 27 Cum
99 36 M&L for Sand cushioning/sand covering for underground cable protection complete all as specified.\nNote: Punned thickness only will be measured and paid. 16 CUM
100 37 Supplying and laying reinforced precast concrete cable cover, class HV, Type 1, flat, size 300mmx l80mm x 40mm, laid along alignment of cable as protection to cable in trenches complete all as specified and directed by Engineer-in-Charge 1200 Each
101 38 M&L for GI pipe light grade 100 mm dia laid along road crossings / plinth protection with suitable fittings for cable protection or fixed to the pole/ Wall complete all as specified and directed by Engineer-in-Charge .\nMake : Surya Roshni Ltd / Tata / Jindal steel / Prakash 12 RM
102 39 M&L cable jointing kit for 11 KV (Earthed) grade XLPE cable for outdoor end termination heat shrinkable type joint complete with jointing material and accessories suitable for size 3 core 120 to 185 Sqmm including testing after jointing complete all as directed . Make: M-Seal/ 3M/ Raychem/ Denson 2 Each
103 40 M&L cable jointing kit for 11 KV (Earthed) grade XLPE cable for outdoor end termination heat shrinkable type joint complete with jointing material and accessories suitable for size 3 core 240 to 300 Sqmm including testing after jointing complete all as directed . Make: M-Seal/ 3M/ Raychem/ Denson 2 Each
104 41 M&L cable jointing kit for 11 KV (Earthed) grade XLPE cable for straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armored aluminium conductor cable of size 120 to 185 Sqmm including testing after jointing complete all as directed . Make: M-Seal/ 3M/ Raychem/ Denson 2 Each
105 42 M&L cable jointing kit for 11 KV (Earthed) grade XLPE cable for straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armored aluminium conductor cable of size 240 to 300 Sqmm including testing after jointing complete all as directed . Make: M-Seal/ 3M/ Raychem/ Denson 2 Each
106 43 S&L XLPE insulated, screened, PVC bedded galvanised steel strip or wire armoured ,electric power cables heavy duty with aluminium conductor, 11000 Volts grade ( earthed) of size 3 core 185 Sqmm complete in trenches/ ducts/ on pole etc complete all as directed . Make: Universal/ CCI/ Finolex/Havells/RPG 140 RM
107 44 S&L XLPE insulated, screened, PVC bedded galvanised steel strip or wire armoured ,electric power cables heavy duty with aluminium conductor, 11000 Volts grade ( earthed) of size 3 core 240 Sqmm complete in trenches/ ducts/ on pole etc complete all as directed . Make: Universal/ CCI/ Finolex/Havells/RPG 115 RM
108 45 M&L for detecting HT 11KV UG cable faults located in any stretch/ depth with sophisticated cable fault locator consisting of microprocessor based pre-locator system, HV surge generator, fault pin point surge wave receiver, cable identification instrument , cable tracer for exact location of under ground cable routes. Note: The rate quoted deemed to be inclusive of transportation of equipment and charges for service engineer . The fault locator will be issued by department for operation 4 Each Job
109 46 M&L for repair and servicing of HT (HT 11 KV) four pole structure by replacing Aluminium PG clamps, GI bolts and nuts, pieces of ACSR conductor with insulation sleeve RYB of any size as jumpers including lubricating the moving parts of AB switch and cleaning of all disc and pin insulators and applying silicon compound for prevention of arcing due to dust/ salt deposits over the surfaces including preparation of surfaces, applying zinc chromate primer on rusted surfaces and applying one coat of aluminum paint to the entire structure complete all as directed. Note:-Rate quoted shall be inclusive of two coats of white wash on exposed concrete . 2 Job
110 47 All as per item No. 46 above but for two pole structure 2 Job
111 48 M & L notice plate of 1.6 mm thick mild steel sheet vitreous enameled white, with letters figures and conventional skull and bones in signal red colour and fixed with MS clamps bolts and nuts of approved size for HT 11 KV of size 25 x 20 cm 6 Each
112 49 M&L cross arms, bracing, supports, clamps and back plates fabricated from structural steel sections including nuts, bolts, washers, welding, bending cold or hot, drilling holes for bolts in any shape or size as indicted and inclusive of one primer coat one under coat and two finishing coat of aluminium paint including dismantling old one. . 0.3 Per Qtl
113 50 M & L for disc insulator porcelain vitreous brown 145 mm height & 225 mm dia ball and socket type two in series assembly with cast aluminium 4 U bolt tension hardware and tension clamps for conductors working pressure HT 11 KV complete including dismantling old one all as specified & directed. 6 Each Set
114 51 Material for pin insulator porcelain vitreous brown insulator including one galvanised mild steel spindle two galvanised iron washers and one galvanised iron nut for 11000 volts grade 205 mm dia & 215 mm height, complete including dismantling old one all as specified 6 Each
115 52 .- ditto- as per Sl Item No. 51, but post type insulator including dismantling old one. 6 Each
116 53 Supply and install HT 11 KV, 200 Amp outdoor type gang operated single break switch Tilting type vertical mounting consisting of hot dip galvanised channel iron base having 2 Nos 11 KV Post type insulator in stack and 3 stack per phase copper or copper alloy high pressure heavily tinned contacts plated MS arcing horns capable of breaking the magnetizing current complete with horizontal connecting bar GI pipe as down rod levers coupling & operating handle with locking arrangement complete. 2 Each
117 54 S & Install drop out lift OFF HT 11 KV, 200 Amp fuse link consisting of channel iron base having 2 Nos 11 KV post type insulators in stack & 2 stack per phase complete with fuse carrier of SRBP tube with heavily tinned non ferrous metal parts and spring loaded phosphor bronze contact complete manufactured as per IS 9385 Complete 2 Set
118 55 M&L for earthing complete with GI earth plate electrode of size 60cm x 60cm x 6 mm thick buried directly in ground (earth pit not less than 2.25 m deep below ground level) with top edge of the plate not less than 1.5m below the normal ground level connected with GI strip 32 x 6mm by means of bolts, nuts, check nuts & washers of galvanized iron steel including necessary excavation and earth work in any type of soil, removing surplus soil to a distance not exc 50m, with and including PCC chamber in PCC (1:2:4), type B1,using (20mm graded stone aggregate), "mild steel angle iron frame" made out of MS angle iron of size 40x 40 x 6 mm thick duly painted with two coats of synthetic enamel paint over one coat of red oxide zinc chrome primer hinged with and including 6mm thick CI cover with handle, watering arrangement with funnel internally secured with wire mesh with 20mm dia medium grade pipe for watering 40mm dia light grade, GI pipe for lead protection in & including alternate layers of charcoal dust and common salt complete all as shown in electrical "plate No '3' and connected to earthing test point all as specified and indicated including testing on completion including retrieving old GI earth plate, CI cover, GI pipes, angle iron frame from existing earthing as directed. 12 Each Set
119 56 S & F following spares of GOD 11 KV grade, 200 Amp rating in position as in repairs including testing after repairs
120 56.01 (a). Male contact 3 Each
121 56.02 (b). Female contact 3 Each
122 56.03 (c). Tinned copper flexible jumper 3 Each
123 56.04 (d). MS Jumper carrier 3 Each
124 56.05 (e). Back connector plate 3 Each
125 57 Disconnect and taking out the IDMT/ Numeric/ Microprocessor based relay of any type of any Make from 11 KV HT panel, cleaning the contacts, calibrating the relay by conducting secondary injection tests, checking of current transformer, rectification of defects in control wiring for proper tripping of circuit breakers through CTs and relay and tripping coils, adjustment/setting to plug and time multiplier settings of the relay to achieve the discrimination in tripping, tune/synchronise upstream breaker relay settings, re-installation of relay, testing & commissioning etc complete all as specified and as directed. 6 Job
126 57.01 Note: The Contractor has to arrange necessary testing Kits, testing equipments, tools etc. Rental rates for the testing/calibration kits & connected equipments are deemed to be included in the quoted rate. Testing & tuning shall be carried out in the presence of representative of the Department, to the satisfaction of the Department.
127 58 Taking down HT switch gear (Vacuum circuit breaker ) of capacity 11 KV 250/350 MVA comprising of following repairs, overhauling, servicing, carrying out preventive maintenance and refixing the same after repairs/ overhauling: 6 Job
128 58.01 (a) Tripping off the breaker, lowering the breaker with raising/lowering handle and pulling out the breaker complete from the panel along with the trolley for servicing/inspection/overhauling
129 58.02 (b) Servicing/Inspecting/checking of automatic safety shutter operation for serviceability and replacement of spares if required.
130 58.03 (b) Servicing/Inspecting/checking of circuit spout and circuit spout connections for RYB phases and replacement of spares if required.
131 58.04 (c) Dismantling and checking of cross bar assembly, fixed contacts and current carrying parts of the breaker, trolley, insulated assembly and checking lamination with clamps, epoxy spout, isolator assembly etc.
132 58.05 (d) Setting, reassembling, cleaning, adjustment of fixed contacts, main contact, arcing contacts and chamber baffle pot assembly, moving contact for proper setting of auxiliary contacts operating mechanism.
133 58.06 (e) Servicing/Inspecting/checking of secondary sockets/busbar earthing plugs/earthing sockets and replacement of spares if required.
134 58.07 (f) Checking, setting and adjustment of lowering and raising operation of the breaker trolley.
135 58.08 (g) Decarbonising of busbar and connected items
136 58.09 (h) Lubrication and greasing of all moving parts of the trolley, stopper bolt for proper operating and closing of shutter gear, isolation resistance of trolley of with vacuum interrupter assembly.
137 58.1 j) The inspection of HT switch gear shall involve:-\n(i) Inspection of truck & hoist assembly.\n(ii) Inspection of tank assembly & barriers.\n(iii) Inspection of assembly & components of solenoid assembly.\n(iv) Inspection of assembly & components of dependent mechanism.\n(v) Inspection of assembly & components of spring box mechanism.\n(vi) Inspection of motor mechanism spring charge assembly \n(vii) Inspection of assembly of trip unit & related components
138 58.11 Note: (i) The servicing includes for busbar duct chamber, cable alleys and connecting accessories \n (ii) The rate quoted shall be deemed to include for necessary T&P, nuts, bolts, washers, gasket, insulation tape, compound, painting of VCB panels with approved colour including lettering details all as per existing etc. to put in to the VCBs and panels in serviceable condition, testing and commissioning all as specified and as directed by the Engineer-in-Charge.\n(iii) Major spares like Breaker bushings, vacuum interrupter assly, busbar spout, busbar spout connections, circuit spout/circuit spout connections/buffer fixed contacts, moving contacts, tank assly/barriers, solenoid spares, dependent/spring mechanism/ motor mechanism, trip unit etc will be measured and paid separately under relevant items of Schedule 'A'. However the rate quoted shall be deemed to include for any other minor spares require replacement. \n (iv) the servicing shall be carried out by Auhtorised service centre as approved by GE
139 59 Supply only the following spares suitable for 250 MVA to 450 MVA HT switch gear VCBs and 11 KV HT panel repair work under relevant Schedule
140 59.01 CTs epoxy cast wound primary CTs with minimum primary current 60 to 400 A, single/ double ratio, double core (Protection core-5P10 & Metering core- Class 1.0), 25 KA for 1 sec of 15 VA minimum Burden. 2 Set of three
141 59.02 Supply only 1.5 sqmm flexible PVC stranded copper conductor cable, unsheathed, 1100 V grade for control wiring. 90 RM
142 59.03 Supply only 2.5 sqmm flexible PVC stranded copper conductor cable, unsheathed, 1100 V grade for control wiring. 90 RM
143 59.04 LED Indication Lamps 12 Each
144 59.05 Shunt trip coil 110 V DC/220 V DC 1 Each
145 59.06 Shunt trip coil 110 V DC/220 V DC with assembly 1 Each
146 59.07 Breaker control switch 4 Each
147 59.08 Busbar Spout 2 Each
148 59.09 Circuit spout 2 Each
149 59.1 Control circuit fuses 2 A to 63 A 24 Each
150 59.11 HRC fuse (PT HT side) 6 Each
151 59.12 PT plug contact 3 Each
152 59.13 Multifunction meter, Digital type (Displaying A, V, PF, Hz, KVA, KW, KVAR, KWh, Karsh etc.) Class 1/0.5 with RS485 port for communication in Modbus protocol. Make : L&T, Conzerve, HPL (SOCOMEC). 4 Each
153 59.14 VCB buffers 3 Each
154 59.15 110 Volt DC closing coil assembly 3 Each
155 59.16 Push to trip knob red assembly 2 Each
156 59.17 Push to trip knob green assembly 2 Each
157 59.18 Ratchet wheel 1 Each
158 59.19 Nylon release lever 3 Each
159 59.2 VCB charging powl 3 Each
160 59.21 Shutters for racking shaft 2 Each
161 59.22 Bus bar support insulator for VCB panel 3 Each
162 60 M&L for replacement of damaged space heater in HT VCB 11 kv with new one suitable to operate on 110 Volts DC supply complete with necessary wiring and control cable with toggle switch and all as directed by engr-in-charge. 10 Each Job
163 61 M&L for repairs/servicing of 36 KV outdoor VCBs of (Areva) Schneider make with mechanism comprising of the following:-\na) Cleaning of vacuum interrupter limbs for dust, oxidising and decarbonising with CTC.\nb) Repair/servicing of spring loaded operating mechanism\nc) Repair/servicing of spring charging motor \nd) Checking, repairing & servicing of gearbox, auxiliary switches, spring, limit switch etc complete\ne) Checking & repairing electrical and mechanical operations\nf) Checking & Repairing remote closing and tripping of VCB from 33KV control panel.\ng) Lubrication all moving parts with petroleum jelly & cleaning all bushing insulators with CTC\nh) Tightening of all mechanical connections of mechanism\ni) Tightening all HV and LV connection of VCB.\n 2 Job
164 62 Supply only the following spares for servicing/repairing of 36 KV Circuit breaker of type of make Areva.
165 62.01 ON/OFF indicator link 3 Each
166 62.02 Motor Cut off Switch 1 Each
167 62.03 Motor for spring charging (Make: Bosch) 1 Each
168 62.04 Auxiliary contactor 1 Each
169 62.05 Drive link Assembly 1 Each
170 62.06 Auxiliary switch arrangement with Bell crank assly & operating link 1 Each
171 62.07 Trip coil 3 Each
172 62.08 Release coil 3 Each
173 63 Disconnect and taking out the Numeric/ Microprocessor based relay(Master Tripping relay, Auxiliary relays) of any type/ of any Make from 33/11 KV HT incoming and outgoing panel, cleaning the contacts, calibrating the relay by conducting secondary injection tests, checking of current transformer, rectification of defects in control wiring for proper tripping of circuit breakers through CTs and relay and tripping coils, adjustment/setting to plug and time multiplier settings of the relay to achieve the discrimination in tripping, tune/synchronise upstream breaker relay settings, re-installation of relay, testing & commissioning etc complete all as specified and as directed. 24 Job
174 63.01 Note for Item : The Contractor has to arrange necessary testing Kits, testing equipments, tools etc and shall also submit detailed test reports, panel wise, duly spiral bound. Rental rates for the testing/calibration kits & connected equipments are deemed to be included in the quoted rate. Testing & tuning shall be carried out in the presence of representative of the Department, to the satisfaction of the Department.
175 64 M & L for preparation of old painted surfaces of steel by brushing/cleaning stain, greasy spots with thinner, applying two coats of spray painting (synthetic enamel paint) all sides with spraying machine to 33 KV, outdoor VCB-06 Nos/AB switch gear control ,CTs, PTs and In door 11 KV VCB 21 Nos etc disconnecting of power supply and including writing description of equipment in block English letter 50 mm with white /black synthetic enamel paint all as specified and directed. 1 Each Job
176 65 M/L for inspecting, checking, servicing of 33KV Lightening arrestors by decarbonising of lighting arrestors, tightening all earthing connections and HV connections for proper contact, application of petroleum jelly of electrical connection, replacement of corroded nuts and bolts etc Complete 2 Job
177 66 M/L for inspecting, checking, servicing of 33 KV Disc/post top insulator by carrying out the following:-\na) Checking insulator for any cracks & pitting\nb) checking the inter locking pins for corrosion and replacing if necessary. cleaning/decarbornising with CTC.\nc) replacing the corroded, rusted nuts &bolts of clamps having conductors if necessary. \nd) Tightening of all supporting connections. 2 Job
178 67 M/L for repairing/ Servicing of 33 KV/110 V PT Set (outdoor):\na) Checking PT limb(Ceramic insulator) for any cracks, pitting and burns\nb) cleaning/decarbonising with CTC\nc) replacing insulator oil with New Oil.\nd) carrying/conducting ratio test.\ne) Tightening all primary and secondary connections.\nf) Tightening all basement fixing nuts & bolts. 2 Job
179 68 M/L for Servicing of 33/11 KV CT Set(outdoor):\na) Checking CT limb for any cracks, pitting and burns\nb) cleaning/decarbonising the limbs with CTC\nc) Complete drain out of old insulating oil and filling new insulator oil.\nd) conducting ratio test.\ne) Tightening all primary and secondary connections.\n 2 Job
180 69 M/L for repairing & servicing of 33KV gang operated air break isolator & earth switch comprising the following:\na) Cleaning of contact for dust, oxidation & pitting with CTC.\nb) Cleaning of all insulators with CTC and observing any cracks and carbon deposits/contents.\nc) Repairing, adjusting the rotating arms for perfect operation including lubrication with petroleum jelly. \nd) Repairing/replacement of tension spring in fixed contacts.\ne) Lubricating of all moving parts for smooth operation.\nf) Checking of auxiliary contacts and their calibration\ng) Applying petroleum jelly to all electrical contacts/moving contacts.\nh) Tightening of all electrical and mechanical connections.\n 2 Job
181 69.01 Note for Item NO.66 to 69 : The rate quoted deemed to be inclusive of Consumables like nuts & bolts, washers, petroleum jelly, CTC etc & T&P etc complete and necessary safety measures for working in 33 KV yard.
182 70 M&L for preparation of steel surfaces of 33 KV structural yard consisting of GODs, CTs, PTs, surge monitors and circuit breakers including yard structures and painting with a coat of Zinc chromate primer on rusted surfaces & applying a coat of rich zinc mix aluminum paint for structures and approved colour synthetic enamel paint on switch gears, transformers etc complete including preparation of surfaces etc. complete all as directed. 2 Job
183 71 M & L for preparation of old painted surfaces of steel by brushing/cleaning stain, greasy spots with thinner, applying two coats of spray painting (synthetic enamel paint) all sides with spraying machine to 33 KV (2.5/3.15 MVA -02 No) transformer and its accessories in the yard after disconnecting of power supply and including writing description of equipment in block English letter 50 mm with white/Black synthetic enamel paint all as specified and directed. 2 Each Job
184 72 Spraying the herbicide using 5 liter hand pump (with sufficient herbicide and water ratio as per manufacturer instructions which can destroy vegetation) to destroy the unwanted vegetation as directed by engineer-in-charge. 3000 Sqm
185 73 M&L for replacement of Bucholtz relay for transformer of capacity 160 KVA to 5000 KVA 1 Each
186 74 M&L for replacement of winding temperature indicator (WTI) for 2500/3150 KVA ,33/11KV transformer including dismantling old one 1 Each
187 75 M&L for replacement of oil temperature indicator (OTI) for 2500/3150 KVA ,33/11KV transformer including dismantling old one 1 Each
188 76 M&L for carrying out following onsite test with testing equipments and all as directed for 33/11 KV transformer of any capacity:-\ni) IR Test\nii) Magnetic imbalance test\niii) Ratio test\niv) Di-electric test of oil\nv) Flame test 1 Job
189 77 S&F in repair insulating mat class-c/voltage grade up to 33 kv (AC) as per IS:15652:2006 with ISI marked of thickness 2.0 mm +/- 10% of approx width 1.0 meter along with suitable adhesive/homebound, resin, waterproofing compound and sealing material all as per IS complete all as directed. 60 Sqm
190 78 Preparing the flat/chequered plate surface for painting and painting the same with one coat of black paint all as directed. 60 Sqm
191 79 Supply and fix copper bare conductor of 6/8 mm dia for overhead earth grid as required including making arrangements for connections all as directed by Engineer-in-charge.\n 10 Kg
Disclaimer :
We takes all possible care for accurate & authentic tender information, however Users are requested to refer Original source of Tender Notice / Tender Document published by Tender Issuing Agency before taking any call regarding this tender.
Tell us about your Product / Services,
We will Find Tenders for you

Copyright © 2021 · All Rights Reserved. Terms of Usage | Privacy Policy

For Tender Information Services Visit : TenderDetail