Tender For Repairing, Overhauling And Heat Varnishing Of Stator And Rotor With Necessary Testing And Commissioning Of 580 Bhp H.T. Motor Unit No. 2 At Mullick Ghat Pumping Station, Kolkata-West Bengal
TDR : 55606709
Tender Notice
BOQ
Expired
Kolkata
West Bengal
Tender For Repairing, Overhauling And Heat Varnishing Of Stator And Rotor With Necessary Testing And Commissioning Of 580 Bhp H.T. Motor Unit No. 2 At Mullick Ghat Pumping Station
Name of Work:- REPAIRING, OVERHAULING AND HEAT VARNISHING OF STATOR AND ROTOR WITH NECESSARY TESTING AND COMMISSIONING OF 580 BHP H.T. MOTOR UNIT NO. 2 AT MULLICK GHAT PUMPING STATION
Sl. No.
Item Description
1
DEMOUNTING THE MOTOR FROM SOLE PLATE & PLACING THE SAME ON AVAILABLE WORKING FLOOR BY USING THE DEPARTMENTAL OVERHEAD CRANE ETC.WHICH INVOLVES DISCONNECTION OF HT/LT CABLE FROM MOTOR TERMINALS CAPACITOR TERMINALS, SPACE HEATER TERMINALS ETC & DECOUPLING THE MOTOR FROM PUMP WITH CARE & CAUTION & COMPLETEIN ALL RESPECT AS PER DIRECTION OF EIC(MODE OF MEASURMENT-WEIGHT OF MOTOR WITH COUPLING
2
TAKING OUT THE ROTOR FROM THE STATOR THROUGH DISMANTLING THE MOTOR WHICH INVOLVES DISCONNECTION OF HT/LT CABLE FROM THE MOTOR TERMINALS SPACE HEATER TERMINALS ETC.,DECOUPLING THE MOTOR FROM PUMP, SEPARATION OF BALL/ROLLER BEARINGS FROM THE DE AND NDE. DISPLACEMENT OF MOTOR FROM THE SOLEPLATE, SEPARATION OF ROTOR FROM THE STATOR AFTER NECESSARY MEASURMENT AND DEMARCATION AND PLACING AT THE WORKING FLOOR BY USING THE DEPARTMENTAL OVERHEAD CRANE COMPLETE CAREFULLY AS PER DIRECTIONOF EIC (MODE OF MEASURMENT -WEIGHT OF THE ROTOR WITH HALF COUPLING)
3
THOROUGH CLEANING THE 6KV RATED STATOR SLOT FROM DUST DRIFT LOOSE PARTICLE ETC AND DRYING THE STATOR SLOTS COMPLETE CAREFULLY AS PER DIRECTION OF EIC (HOT-SPOT TEST TO BE CARRIED OUT FOR CHECKING OF HEALTHINESS OF STATOR CORE )(MODE OFMEASURMENT-MEASURED SURFACE INNER AREA (I.E STATOR CORE INNER DIA.X LENGTH OF CORE) OF THE CORE OF THE COMPLETE
4
HEAT VERNISHING THE 6KV. RATED STATOR WINDING WITH TWO COATS OF DR. BECK HTF-50 VERNISH AND SUBSEQUENT HEATING TO SUITABLE TEMPERATURE TILL REQUSITE RESULT IS OBTAINED TO THE SATISFACTORY IRVALUE, PI VALUE, INDUCTANCE / RESISTANCE MEASUREMENT & HIGH VOLTAGE TEST & COMPLETE IN ALL RESPECT WITH PROPER CARE & CAUTION AS PER DIRECTION OF EIC (ALL TESTCERTIFICATES TO BE FURNISHED ) (MODE OF MEASUREMENT -MEASURED SURFACE INNER AREA {I.E STATOR CORE INNER DIA.X H X LENGTH OF CORE } OF THE CORE OF THE COMPLETE STATOR ).
5
DUSTING OFF THE ROTOR OF 6KV RATED MOTOR BY SUITABLE BRUSH AND MIST FREE GAS(OXYGEN ) CLEAN DRY AIR JETTING ARRANGEMENT ( PRESSUR IS NOT SO HIGH AS TO DAMAGE THE INSULATION ) AND FOLLOWING SUBSEQUENT HEATING AND CLEANING WITH PETROLEUMBASED SUITABLE ORGANIC COMPOUND THOROUGHLY ETC COMPLETE AS PER DIRECTION OF EIC ( MODE OF MEASUREMENT -MEASURED SURFACE PERIMETER OF THE ROTOR AREA { I.E. CORE OUTER DIA. X H X LENGTH OF CORE } OF THE COMPLETE ROTOR )
6
HEAT VERNISHING OF THE ROTOR OF THE 6KV RATED MOTOR WITH TWO COATS OF DR. BECK HTP-50 VERNISH AND SUBSEQUENT HEATING TO SUITABLE TEMPERATURE TILL REQUSITE RESULT IS OBTAINED & COMPLETE IN ALL RESPECT WITH PROPER CARE & CAUTION AS DIRECTION OF EIC ( MODE OF MEASUREMENT-MEASURED SURFACEPERIMETER OF THE ROTOR AREA { I.E CORE OUTERDIA X H X LENGTH OF CORE } OF THE COMPLETE ROTOR.
7
ASSEMEMBLING THE 6KV RATED MOTOR AFTER INSURTING THE ROTOR INTO STATOR INCLUDING FITTING OF BEARING (BALL OR ROLLER) FOR BOTH DE & NDE ETC MAINTAINING THE PROPER \\"\\"AIR GAP\\"\\" AND PLACING THE ASSEMBLED MOTOR ON THE SOLE PLATE BY UTILIZING THE OVER HEAD CRANES AVAILABLE IN THE PUMPING STATION .TIGHTENING THE FOUNDATION BOLT FIXING THE DOWELLS PINS & COMPLETE IN ALL RESPECT AS PER DIRECTION OF EIC (MODE OF MEASUREMENT- GROSS WEIGHT OF THE MOTOR )
8
MAKING ALIGNMENT OF THE SHAFT OF PUMP & MOTOR BY USING DIGAUGE ETC INCLUDING INSERTION OF REQUSITE DIMENTIONED BRASS SHEET & COMPLETE IN ALL RESPECT AS PER DIRECTION OF EIC.
9
MAKING HT CONNECTION OF MOTOR TERMINALS WITH ALL EXISTING CABLES SUCH ASFROM FEEDER BREAKER /CAPACITOR /SOFT STARTER & LT CONNECTION OF ALL EXISTING MOTOR SPACE HEATER/ MOTOR TEMPARATURE SCANNER & EARTHING TERMINALS ETC COMPLETE IN ALL RESPECT AS PER DIRECTION OF EIC.
10
STATUTORY REQUISITE PRE-COMMISSIONING HIGH VOLTAGE TEST OF THE 6KV RATED MOTOR TO BE DONE BY THE PARTY ENGAGING AUTHORIZED AGENCY OF DIRECTORATE OF ELECTRICITY ,GOVT. OF W.B. AND THE TEST CERTIFICATES TO BE FURNISHED TO THE DEPARTMENT
11
COMMISSIONING THE 6KV RATED MOTOR BY DECOUPLING OF PUMP ( I.E NO LOAD) AND SUBSEQUENTLY COMMISSIONING THE MOTOR IN LOAD ( I.E COUPLED WITH PUMP ) DO NEEDFUL FOR OBSERVATION OF THE 72 HRS TRIAL RUN TO ACHIVE THE SATISFACTORY OPERATION OF THE MOTOR WITH LOAD & COMPLETE IN ALL RESPECT WITH PROPER CARE & CAUTION AS PER DIRECTION OF EIC
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Sub Total
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GST 18%
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CESS 1% Please Enable Macros to View BoQ information
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