Tender For Repair Of Damaged Failed 33_11 Kv 3.15 Mva, 5.0 Mva And 8.0 Mva 33_11 Kv Power Transformers, jodhpur-Rajasthan

Repair Of Damaged Failed 33_11 Kv 3.15 Mva, 5.0 Mva And 8.0 Mva 33_11 Kv Power Transformers , 1.0 ) Opening Of Transformer Cover, Draining Oil, De-Tanking Core Coil Assembly, Assessment And Estimation For Repair And Replacement Of Part, Providing Locking Arrangement On All Valves & Plugs As Per Requirement Of Specification, Cleaning & Washing Of Dust / Rust & Dirt From All Other Parts Including Core Tanks & Cooling Tubes, Re-Tank , Variable With Base Date 01.03.2023 , 1.1 ) For 3.15 Mva Rating , 1.2 ) For 5.0Mva Rating , 1.3 ) For 8.0 Mva Rating , 2.0 ) Supply Of Following Damaged Parts Requiring Replacement Complete In All Respect, Variable With Base Date 01.03.2022 , 2.1 ) Hv Leg Coil With Insulation, Varnish & Baking Of Coil Assembly ( Vacuum Impregnation ) ( The Burn Leg Is To Be Retained By Contractor ) , 2.2 ) Lv Leg Coil With Insulation, Varnish & Baking Of Coil Assembly ( Vacuum Impregnation ) ( The Burn Leg Is To Be Retained By Contractor ) , 3 ) Ht Bushing ( 33 Kv ) As Per Relevant Iss. , 4 ) Lt Bushing ( 11 Kv ) & Neutral Bushing As Per Relevant Iss. , 5 ) Bushing Rod & Other Metal Parts Including Nuts ( Material & Size Of Bushing / Rods / Nuts As Per Is Specidfication ) , 5.1 ) For Hv , 5.2 ) For Lv , 6.0 ) Set Of Gaskets ( Rubberized Cork Neoprene Material & Size Is To Be Needed ) , 6.1 ) For 3.15 Mva Rating , 6.2 ) For 5.0Mva Rating , 6.3 ) For 8.0 Mva Rating , 7.0 ) Breather Dehydrator ( Silicagel Type With Fresh Silicagel ) , 7.1 ) For 3.15 Mva Rating , 7.2 ) For 5.0Mva Rating , 7.3 ) For 8.0 Mva Rating , 8.0 ) Glass For Oil Level Gauge , 9 ) Taping Switch Handel Only , 9.1 ) For 3.15 Mva Rating , 9.2 ) For 5.0Mva Rating , 9.3 ) For 8.0 Mva Rating , 10 ) Off Loading Taping Switch Without Handle , 10.1 ) For 3.15 Mva Rating , 10.2 ) For 5.0Mva Rating , 10.3 ) For 8.0 Mva Rating , 11 ) Oil Drain / Filter Valve Of Gun Metal , 12 ) Lt Terminal Plate With Terminals If Required , 13 ) Fresh Transformer Oil Of Standard Qualityof Isi Mark, Variable With Base Date 01.03.2023 , 14 ) Filtration Charges If Transformer Oil Supplied By The Nigam / Repairer Of The Transformer , 15 ) Sundry Itemsviz Cover Bolts, Plug Cap Screws, Washers, Insulation Material Etc. With Minorrepairs Of Tank And Other Parts If Any ( Denting And Welding Etc. If Required ) , 15.1 ) For 3.15 Mva Rating , 15.2 ) For 5.0Mva Rating , 15.3 ) For 8.0 Mva Rating , 16 ) Cooling Tubes / Fins , 17 ) Conservative Tank With Detachable End Plates. , 18 ) Dial Type Thermometer 100 Mm Size , 19 ) Dial Type Thermometer 150 Mm Size With A Set Of Alarm Contact For 3.15 Mva And Above Transformer Rating. , 20 ) Double Float Buchholz Relay , 21 ) Rating Plate Made Of Stainless Steel Or Brass Or Alumunium Engraved With Details As Per Specification Including Date Of Despatch Of Transformer After Repair , 22 ) Earthing Terminals , 23 ) Air Release Valve , 24 ) Arcing Horns For Ht Bushing And Lt Bushing Non Adjustable Type , 25 ) Winding Temperature Indicator With Alarm , 26 ) Plain Capaliary Type Oil Level Guage To Be Provided On The Oil Conservator With Low Level Indicator , 27 ) Magnetic Type Oil Level Gauge , 28 ) Marshalling Box For Transformers , 29 ) Shut Off Valve ( Gun Metal ) 1 1 / 2 , 30 ) Painting Inside With Two Coat Of Zinc Chromate Best Paint And Outside Of Transformer With Two Coat Of Grey Paint And Marking After Derusting , 30.1 ) For 3.15 Mva Rating , 30.2 ) For 5.0Mva Rating , 30.3 ) For 8.0 Mva Rating , 31 ) To And Fro Transportation Charges From Any Of The Circle Store / Sub Store To The Work Of The Firm And Back , 31 ) A ) Loading & Unloading Charges At Firms Works And Nigams Stores ( Both Sides ) . , 31.A.1 ) For 3.15 Mva Rating , 31.A.2 ) For 5.0Mva Rating , 31.A.3 ) For 8.0 Mva Rating , 31. B ) Transportation Charges Per Km. , 31.B.1 ) For 3.15 Mva Rating , 31.B.2 ) For 5.0Mva Rating , 31.B.3 ) For 8.0 Mva Rating , 32 ) Charges For Minor Repair Where Replacement Of Coil Is Not Involved , 32.1 ) For 3.15 Mva Rating , 32.2 ) For 5.0Mva Rating , 32.3 ) For 8.0 Mva Rating , 33 ) Labour Charges For Opening The Transformer Tank Top Cover ( If Required To Facilitate Maintenance Of Transformer ) After Removing Required Accessories.Including All Required T&P Up To 5 Mva Transformer. , 34 ) Preventing Oil Leakage By Changing Main Gasket With Material After Removing Cover. , 34.1 ) Upto 1.6 Mva Transformer , 34.2 ) Above 1.6 Mva & Upto 3.15 Mva Transformer. , 34.3 ) Above 3.15 Mva & Upto 5 Mva Transformer. , 35 ) A ) Change Of Hv / Lv Bushing Gasket Ring And Rubber Washers Including Supply Of Required Material & Draining / Re-Filling Of Oil As Required. , 35 ) B ) For Additional Hv / Lv Bushing Work. * This Amount Will Not Be Payable Incase The Work Of Removing Of Top Cover Gasket Is Also Awarded In The Same Order. , 36 ) Change Of Gaskets Of Valves / Radiator / Buchhlozes Relay Including Cost Of Gaskets Etc. , 36.1 ) Valves / Buchhlozes Relay , 36.2 ) Radiator Valves. , 37 ) Providing & Fixing ( Including Replacement ) Of Hv / Lv Bushing Ofreputed Make& Bushing Rod Of Brass Matel Including Cost Of Gasket & Rubber Rings .Gasket Makes Are Tabross, Tiger, Zebra And Any Other Reputed Make. , 37.A ) Hv Side , 37.A.1 ) Upto 1.6 Mva Transformer , 37.A.2 ) Above 1.6 Mva & Upto 3.15 Mva Transformer. , 37.A.3 ) Above 3.15 Mva & Upto 5 Mva Transformer. , 37.B ) Lv Side , 37.B.1 ) Upto 1.6 Mva Transformer , 37.B.2 ) Above 1.6 Mva & Upto 3.15 Mva Transformer. , 37.B.3 ) Above 3.15 Mva & Upto 5 Mva Transformer. , 38 ) Dehydration / Filteration And Reconditioning Of Transformer Oil ( Electricity Shall Be Supplied By Deptt. ) As Per Norms And Testing Thereof In Presence Of Sub-Station Incharge. , 39 ) Cleaning Of Oil Scale Deposits Over The Body And Radiators Of Power Transformer With Thinner / Detergent And De-Rusting In Perfect Manner. , 39.1 ) Upto 1.6 Mva Transformer , 39.2 ) Above 1.6 Mva & Upto 3.15 Mva Transformer. , 39.3 ) Above 3.15 Mva & Upto 5 Mva Transformer. , 40 ) Change Of Following Items: , A ) Oil Temperature Indicator , B ) Windingtemperature Indicator , C ) Silica Gel Container , D ) Presser Relief Device Make Atbus , E ) Magnetic Oil Level Gauge.Make Atbus , F ) Gas Operated Buchhloz Relay ( Double Floating Type Make Atbus )

Sr No	CorrigendumDate	Corrignedum	CorrigendumType	NewSubmissionDate
1	28-Apr-2023	Pre Bid meeting Re_Scheduled	Date	30-05-2023
2	26-May-2023	Date Extension TN 1877 Upto 9.06.2023	Date	09-06-2023
3	09-Jun-2023	Corrigendum II TN 1877 Due Date Opening Extended upto 20.06.2023	Date	20-06-2023
4	19-Jun-2023	Date Extension TN 1877 Upto 4.07.2023	Date	04-07-2023
5	01-Jul-2023	Date Extension TN 1877 Upto 14.07.2023	Date	14-07-2023
6	13-Jul-2023	Date Extension TN 1877 Upto 21.07.2023	Date	21-07-2023
7	21-Jul-2023	Date Extension TN 1877 Upto 28.07.2023	Date	28-07-2023
8	27-Jul-2023	Date Extension TN 1877 Upto 08.08.2023	Date	08-08-2023
9	07-Aug-2023	Date Extension TN 1877 Upto 17.08.2023	Date	17-08-2023
10	17-Aug-2023	Date Extension TN 1877 Upto 29.08.2023	Date	29-08-2023

INR 2950 /-

INR 1000000.0 /-

INR 5 Crore /-

Name of Work: Award of Central Rate Contract for repair and testing of damaged 33/11 KV Power Transformer

Sl. No.	Item Description
1	1.0) Opening of transformer cover, draining oil, de-tanking core coil assembly, Assessment and estimation for Repair and replacement of part,providing locking arrangement on all valves & plugs as per requirement of specification,Cleaning & washing of dust/ rust & dirt from all other parts including core tanks & cooling tubes,re-tank , variable with base date 01.03.2023
2	1.1) For 3.15 MVA Rating
3	1.2) For 5.0MVA Rating
4	1.3) For 8.0 MVA Rating
5	2.0) SUPPLY OF FOLLOWING DAMAGED PARTS REQUIRING REPLACEMENT COMPLETE IN ALL RESPECT, variable with base date 01.03.2022
6	2.1) HV Leg Coil with insulation, varnish & baking of coil assembly (Vacuum impregnation)(the burn leg is to be retained by contractor)
7	2.2) LV Leg Coil with insulation, varnish & baking of coil assembly (Vacuum impregnation)(the burn leg is to be retained by contractor)
8	3) HT bushing (33 KV) as per relevant ISS.
9	4) LT bushing (11 KV) & Neutral bushing as per relevant ISS.
10	5) Bushing rod & other metal parts including nuts ( material & size of bushing/ rods/nuts as per IS Specidfication)
11	5.1) For HV
12	5.2) For LV
13	6.0) Set of Gaskets (rubberized cork neoprene material & size is to be needed)
14	6.1) For 3.15 MVA Rating
15	6.2) For 5.0MVA Rating
16	6.3) For 8.0 MVA Rating
17	7.0) Breather Dehydrator (Silicagel type with fresh silicagel)
18	7.1) For 3.15 MVA Rating
19	7.2) For 5.0MVA Rating
20	7.3) For 8.0 MVA Rating
21	8.0) Glass for oil level gauge
22	9) Taping switch handel only
23	9.1) For 3.15 MVA Rating
24	9.2) For 5.0MVA Rating
25	9.3) For 8.0 MVA Rating
26	10) Off loading Taping switch without handle
27	10.1) For 3.15 MVA Rating
28	10.2) For 5.0MVA Rating
29	10.3) For 8.0 MVA Rating
30	11) Oil drain/ filter valve of gun metal
31	12) LT Terminal plate with terminals if required
32	13) Fresh transformer oil of standard qualityof ISI mark, variable with base date 01.03.2023
33	14) Filtration charges if Transformer oil supplied by the Nigam / Repairer of the Transformer
34	15) Sundry itemsviz cover bolts, plug cap screws, washers, insulation material etc. with minorrepairs of tank and other parts if any (Denting and welding etc. if required)
35	15.1) For 3.15 MVA Rating
36	15.2) For 5.0MVA Rating
37	15.3) For 8.0 MVA Rating
38	16) Cooling Tubes/ Fins
39	17) Conservative Tank with detachable end plates.
40	18) Dial type thermometer 100 mm size
41	19) Dial type thermometer 150 mm size with a set of alarm contact for 3.15 MVA and above transformer rating.
42	20) Double float buchholz relay
43	21) Rating plate made of stainless steel or brass or alumunium engraved with details as per specification including date of despatch of transformer after repair
44	22) Earthing Terminals
45	23) Air release valve
46	24) Arcing horns for HT bushing and LT bushing non adjustable type
47	25) Winding Temperature indicator with alarm
48	26) Plain Capaliary type oil level guage to be provided on the oil conservator with low level indicator
49	27) Magnetic type oil level gauge
50	28) Marshalling box for transformers
51	29) shut off valve (Gun metal ) 1 1/2"
52	30) Painting inside with two coat of Zinc chromate best paint and outside of transformer with two coat of grey paint and marking after derusting
53	30.1) For 3.15 MVA Rating
54	30.2) For 5.0MVA Rating
55	30.3) For 8.0 MVA Rating
56	31) To and Fro transportation charges from any of the circle store / Sub store to the work of the firm and back
57	31) a)Loading & unloading charges at firm"s works and Nigam"s stores (Both Sides).
58	31.a.1) For 3.15 MVA Rating
59	31.a.2) For 5.0MVA Rating
60	31.a.3) For 8.0 MVA Rating
61	31. b) Transportation charges Per Km.
62	31.b.1) For 3.15 MVA Rating
63	31.b.2) For 5.0MVA Rating
64	31.b.3) For 8.0 MVA Rating
65	32) Charges for minor repair where replacement of coil is not involved
66	32.1) For 3.15 MVA Rating
67	32.2) For 5.0MVA Rating
68	32.3) For 8.0 MVA Rating
69	33) Labour charges for opening the transformer tank top cover(if required to facilitate maintenance of transformer) after removing required accessories.Including all required T&P Up to 5 MVA transformer.
70	34) Preventing oil leakage by changing main gasket with material after removing cover.
71	34.1) Upto 1.6 MVA transformer
72	34.2) Above 1.6 MVA & upto 3.15 MVA transformer.
73	34.3) Above 3.15 MVA & upto 5 MVA transformer.
74	35) A) Change of HV/LV bushing gasket ring and rubber washers including supply of required material & draining /re-filling of oil as required.
75	35) B)For additional HV/LV bushing work. * This amount will not be payable incase the work of removing of Top cover gasket is also awarded in the same order.
76	36) Change of gaskets of valves/radiator / Buchhloze"s Relay including cost of gaskets etc.
77	36.1) Valve"s/Buchhloze"s Relay
78	36.2) Radiator Valves.
79	37) Providing & Fixing (including replacement) of HV/LV bushing ofreputed make& bushing rod of brass matel including cost of gasket & rubber rings .Gasket makes are TABROSS,TIGER, ZEBRA and any other reputed make.
80	37.A) HV Side
81	37.A.1) Upto 1.6 MVA transformer
82	37.A.2) Above 1.6 MVA & upto 3.15 MVA transformer.
83	37.A.3) Above 3.15 MVA & upto 5 MVA transformer.
84	37.B) LV Side
85	37.B.1) Upto 1.6 MVA transformer
86	37.B.2) Above 1.6 MVA & upto 3.15 MVA transformer.
87	37.B.3) Above 3.15 MVA & upto 5 MVA transformer.
88	38) Dehydration/Filteration and reconditioning of transformer oil (electricity shall be supplied by deptt.) as per norms and testing thereof in presence of sub-station Incharge.
89	39) Cleaning of oil scale deposits over the body and radiators of power transformer with thinner/detergent and de-rusting in perfect manner.
90	39.1) Upto 1.6 MVA transformer
91	39.2) Above 1.6 MVA & upto 3.15 MVA transformer.
92	39.3) Above 3.15 MVA & upto 5 MVA transformer.
93	40) Change of following items:
94	a) Oil temperature indicator
95	b) WindingTemperature indicator
96	c) Silica gel container
97	d) Presser relief device Make ATBUS
98	e) Magnetic oil level gauge.Make ATBUS
99	f) Gas operated Buchhloz relay( Double floating type make ATBUS)