Work Contract for Repairing and Reconditioning of Power Transformers

Materials

HV coil with insulation

LV coil with insulation

Core bolt with insulation

Insulating materials

HV bushings with metal parts

LV bushings with metal parts

Oil Temperature Indicator

Winding Temperature Indicator

Magnetic oil Gauge

Buchholz Relay

Butterfly valve

Neoprene Gasket

New Transformer Oil

Breather

OLTC epoxy barrier sheet

OLTC transition resistance

Wheel valves of various sizes

Main Tank

33 KV Bushing (Porcelain only)

Surge Relay

Yoke channel/ lamination wherever required

Transformer wheels

Radiators

Contactors

AC CONTACTORS

DC CONTACTORS

Remote/ Local switches

Heater

Heater switch

Step down transformer 415/110 V

Time Delay Relay

Motor Protection Relay

Tap position indicators

Ladder

OLTC operating handle

Motor rewinding

OLTC spares such as gear mechanism, contacts etc.

Marshalling box for OTI & WTI

Relays

Door push button

Test terminal block

M-box door beading

RTCC panel door beading

M-Box door glass

M-Box door glass beading

Indication light

Push button

Fuse carrier

Thermostat

Emergency push button

Door lock

Lamp CFL

Lamp holder

DM box door beading

Fuse top

Hooter

LABOUR CHARGES

Dismantling the accessories and drain Oil upto the required level

Charges for transporting transformer along with accessories from the site to the firm's works

Insurance for transit and storage period at firm’s works #

Loading charges at site

Unloading charges at firm's works

Removal of defective coil after dismantling yoke channel and laminations

Charges for detailed examination of transformer towards identification of defects

Replacement of damaged core bolt insulation

Fixing of healthy coil including insulation materials and fixing of lamination & yoke Channel

Bracing, tapping, take off leads of new winding and formation of star connections & fixing frame

Reconditioning of oil

Preliminary drying out of core and winding at hot air chamber

Overhauling of OLTC mechanism & contacts and testing the same

Cleaning of tank, overhauling the radiators including welding charges, conservator, Buchholz Relay test & renewal of gaskets

Core and winding tanking and connecting to tapping leads and fixing metal parts of both HV& LV.

Checking of healthiness of wiring in DM Box, Marshalling box, RTCC panel and Rewiring, if required.

Testing of relay contact at the time Of final inspection

Testing of CTs (ratio, knee point voltage Required etc.) at the time of final inspection

Fabrication of pipelines

Top cover fixing and assembly of HV and LV bushings

IR value improvement

Painting of transformer (outside)

Transport of repaired unit and accessories from firm's works to the allotted site

Insurance for transit & 90 days storage at site#

Loading charges at firm's works

Unloading charges of the repaired unit at the allotted site

VISHNU ELECTRICALS (BID ID -1136704)

Delta Roto Tech Private LimitedV (BID ID -1136613)

SAP INDUSTRIES (BID ID -1136701)