Bharat Sanchar Nigam Limited Tender
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Costs
EMD
₹ 2,700Document Cost
₹ 590Tender Fee
Refer Documents
Summary
Fault Attending And Repairing Of Automatic Voltage Regulators (avrs) At Various Telephone Exchanges And Mobile Bts Sites Under Cuttack Ba For The Fy 2023-24.(sh-different Te/bts Sites Under Cuttack And Jajpur Revenue District).
Description
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Contact
Tender Id
2024_BSNL_751693_1Tender No
NIT No- 194/BSNL/ED/CTC/2023-24Tender Authority
Bharat Sanchar Nigam Limited ViewPurchaser Address
-Website
http://www.bsnl.co.in
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Documents
BOQ Items
Distance above 100 Kms and up to 200 Kms from Cuttack
2
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Attending breakdown faults, physical Inspection of the Servo motor operated Automatic Voltage Regulators (AVR) ( 15 to 100 KVA) , checking the electrical connections, tightening if required, , testing and recording the input and out put voltages, detecting the faults, assessing the list of materials required for repairing, rectification of minor faults and restoration in case of minor faults etc as reqd. (Materials are not included in this item)
10
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Opening of the top/side/front/back covers of the AVR (15-100KVA), cleaning with air blower (For air cooled AVR), checking the internal electrical connections, functioning of control cards, Variacs, Buck and Boost Transsformer, Servo motors and carbon contacts, replacement of limit switches, toggle switches, meters, indicators, RC networks, MCBs, Bypass switches, burntout wires/cables, carbon contacts etc., complete as required. (materials are not included in this item)
10
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Replacement of the faulty/burnt out.damaged spare parts of the 24/30/48/60/100/120 KVA Air/ Oil cooled AVR by new ones of the following types and ratings of approved make etc. as required.
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Carbon Brush Contacts 100/150 Amps
5
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Auto manual toggle switch, 10 Amps
5
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Buck Boost Toggle switch, 10 Amps
5
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Limit switch
5
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Push button switch
5
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Phase splitter (RC Network)
5
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Pinion set (Metal/Nylon)
2
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Al. Gear for variac
2
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Replacement of the faulty/burnt out control cards/Servo motors / Contactors / MCBs / bypass switches etc. of 15/24/30/48/60/100 KVA Air/ Oil cooled AVR by new ones of following ratings and approved make i/c dismantling the old ones, fixing the good ones, connection, testing etc. complete as required.
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Servo Motor Control card with contol Transformer
2
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Servo (AC Synchronous) Motor, 10 Kg-cm Torque, 90-300 volt, 50 Hz, 60 RPM
2
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Servo (AC Synchronous) Motor, 3 Kg-cm Torque, 90-300 volt, 50 Hz, 60 RPM
2
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40 Amps 415 volts 50 HZ, 3 pole, AC3 continuous duty Contactor
1
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40 Amps 415 volts 50 HZ, 3 pole MCB (C- Series)
1
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63 Amps 415 volts 50 HZ, 3 pole MCB (C- Series)
1
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Replacement of the faulty/burnt out meters, slecetor switches, indicating lamps etc. of 15/24/30/48/60/100 KVA Air/ Oil cooled AVR by new ones of following ratings and approved make.
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0-500V panel mounted type Volt meters (72mmX72mm/96mmX96mm)
2
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Volt meter slelector switch for selecting phase and line voltages with OFF ( 61313SBB13TDYR OF L&T OR Equivalent of AE/Salzer/Resabh/Kaycee/SS)
2
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0-200A panel mounted type Ampere meters (72sqmm/96sqmm)
2
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Ammeter slelector switch for selecting phase and line currents ( 3S36B0))
2
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16/22.5mm LED Indicators
5
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150/200 Amps 4 pole Stud connector
5
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Replacement of the burnt out/faulty variac of the 24/30/48 KVA Air/ Oil cooled AVR by new ones of following ratings and approved make variacs of copper wound on silicon CRGO toroidal laminated cores with Input voltage 120V to 270V and output voltage 220+1% i/c dismantling the old ones, fixing the new ones, connection, testing etc. complete as required.
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20Amps/28 Amps/32 Amps
1
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Repairing Servo motor control cards i/c replacement of faulty components by new ones of suitable ratings etc. as required.
2
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Removing the job of of the oil cooled AVRs by the help of chain pully and re-installation after repairing etc. complete as required.
2
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Top up of suitable grade and superior quality Transformer oil for the oil cooled AVRs etc. as required.
20
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De-hydration of the Transformer oil of oil cooled AVR and measuring the insulation (BDV) of transformer oil etc. complete as required.
25
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