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Provn Of Voltage Stabilizer An, Shillong - Tender Details
Explore tender information for Provn Of Voltage Stabilizer An in Shillong, including eligibility, deadlines, and bid specifics.
Military Engineer Services
Shillong, Meghalaya, India
NTID 38910015
Opening Date : Sat 1st February, 2025- Closing Date : Fri 24th January, 2025
- ₹ 4952000.00
- NTID 38910015
Provn Of Voltage Stabilizer And Related Em Works For Ug Iaccs Complex And Miscellaneous Br And Em Works At Af Stn Laitkor Peak
Key Values: Document Cost: 500.00 | EMD: 99040.00 | Estimated Cost: 4952000.00
Documents
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Document-1
721.3 kBOil_India_ExtraDoc...Oil_India_ExtraDocument-GCO0449P23.pdf
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Document-2
721.3 kBOil_India_ExtraDoc...Oil_India_ExtraDocument-GCO0449P23.pdf
Costs
-
EMD
99040.00 -
Document Cost
500.00 -
Estimated Cost
4952000.00
BOQ Items Total Items : 67 | Total Qty : 1680.618
| # | Item | Quantity | Units |
|---|---|---|---|
| 1 | Supply, install, testing and commissioning of outdoor type 11 KV HT AVR (Automatic voltage stablizer) having Input Voltage : 10 KV to 12.5 KV, 3 Phase, 3 Wire, 50 Hz Output Voltage : 11 V , 1%, 3 Phase, 3 Wire, 50 Hz Capacity : 1250 KVA The Unit Consists of (i) Step Down Transformer double Copper wound, Star/Delta connected. (ii)On Load stepless rolling contact type regulator, auto wound Delta connected. Transformer Double wound Open/Open- Buck Boost type. Automatic control gear consists of: (i) One Electronic relay (ii) One reversing geared motor unit. (iii) Two limit switches in order to avoid over-running highest and lowest position. Chain Drive, Coupling devices with all electrical connections. (Transformer parts) item (a) &(c) above, shall be housed in a sheet steel tank fitted with radiators and mounted on unidirectional rollers and shall have the following fitings: - a) Lifting Lugs b) Earthing terminals c) Rating plate d) Filter Valve top & bottom e) Oil fitting hole f) Thermometer pocket g) Silicagel dehydrating breather h) Oil level hole l) Conservator k) Dial type oil temperature indicator with alarm and contacts l) Explosion vent m) Bochholz relay with alarm and trip contacts. | 1.00 | Each |
| 2 | (Regulater Parts) item (b) & (d) above shall be housed in a separate tank and shall have the following fittings: - a) Lifting Lugs b) Earthing terminals c) Rating plate d) Filter Valve top & bottom e) Oil fitting hole f) Thermometer pocket g) Silicagel dehydrating breather h) Oil level hole j) Voltmeter with selector switch for measuring output voltage. BOTH THE TANK SHALL BE SUPPLIED WITH FIRST FILLING OF TRANSFORMER OIL CONFORMING TO IS-335 (LATEST ADDITION) CENTRAL CONSTRUCTIONAL FEATURES: - The unit shall have three distinct features as under: (a) Hand Control (b) Motor Control (c) Automatic Control HAND CONTROL Hand wheel will be located on the front of the regulator tank at convenient operative height. MOTOR CONTROL Raise/Lower push button control by means of small single phase reversible geared motor of the permanent capacitor type shall be provided. The limit switches shall be provided to restrict the travel at extreme positions. With this arrangement, It would also be possible to provide remote control of the regulating unit. The reversible graded motor wound of STEP-SYN type. AUTOMATIC CONTROL For automatic correction of fluctuating supply voltage, we shall provide Electronic relay which will sense the output voltage and provide signal to the driving motor for necessary corrections. MAXIMUM TEMPERATORE RISE: (a) Of oil by thermometer : 50 C (b) Of winding by resistance : 55 C (c) Of hot spot temperature indicator : 65 C (d) Limit of hot spot temperature : 110 C | ||
| 3 | ANNEXURE- II FITTINGS & ACCESSORIES (a) Uni-Directional Plain Rollers : 4 Nos. (b) Lifting Lugs : 4 Nos. (c) Earthing Terminals : 2 Nos. (d) Rating Plate : 1 No. (e) Top Filter Valve with Plug : 1 No (f) Drain Valve cum Bottom Filter Valve with Plug : 1 No. (g) Oil Filling Hole : 1 No. (h) Thermometer Pocket : As Per Requirement (j) Plain Oil Level Gauge : 1 No. (k) Dehydration Silica Gel Breather : 1 No. (l) Inspection Cover : As Per Requirement (m) Conservator : 1 No. (n) Explosion Vent : 1 No. (o) Air Release Plug : 1 No. (p) Buchhloz Relay : 1 No. (q) OTI : 1 No. (r) Marshalling Box : 1 No. (s) Radiators : As Per Requirement. Unit B shall be housed in a separate tank and shall have the following fittings: (a) Uni-Directional Plain Rollers : 4 Nos. (b) Lifting Lugs : 4 Nos. (c) Earthing Terminals : 2 Nos. (d) Rating Plate : 1 No. (e) Top Filter Valve with Plug : 1 No. (f) Drain Valve cum Bottom Filter Valve with Plug : 1 No. (g) Oil Filling Hole : 1 No. (h) Thermometer Pocket : As Per Requirement (j) Plain Oil Level Gauge : 1 No. (k) Dehydration Silica Gel Breather : 1 No. | ||
| 4 | (l) Inspection Cover : As Per Requirement (m) Conservator : 1 No. (n) Explosion Vent : 1 No. (o) Air Release Plug : 1 No. (p) Buchhloz Relay : 1 No. (q) OTI : 1 No. (r)Marshalling Box : 1 No. (s) Radiators : ONAN Cooling The following system should have manual/bypass arrangement, suitable for balanced supply and unbalanced load, minimum losses as per IS 2026/77 with voltage correction speed 80 to 85 V/sec,suitable for all power factors with ONAN Cooled oil immersed copper wound outdoor HT-AVR (on-load stepless rolling contact type) suitable with CRGO laminations M4 grade. Foundation Work : The civil and foundation work should be carried as per OEM general arrangements and as per IE Rules.Electrical terminal control and monitoring features as per specified by OEM and directed and specified by Engr-in-charge. Make : VINTEK(Brand Name :VOLINA) or equivalent | ||
| 5 | Excavating in trenches not exc 1.50 mtr wide and not exc 1.50 mtr in depth for taking out/laying of under ground cable, pole or stay and getting out in soft/loose soil, complete all as specified and as directed. | 17.82 | Cum |
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