TRANSFORMER ACCESSORIES

REMOTE TAPCHANGER CONTROL CUBICLE FOR ONLOAD TAPCHANGERS

 

For control and monitoring of Onload tapchangers from control room. Digital concept suitable for Substation Automation. Compact Microcontroller\PLC based, Floor\Wall\Transformer mounted, meeting IEC 61850 and Smart Grid\SCADA compatible.

  • Available in conventional, compact and digital variants.
  • Panel size can be customized as per customer requirement.
  • Automatic voltage regulation based on voltage set point.
  • Can be provided for standalone transformers or parallel connected transformers.
  • Optional Advanced Tapchanger Control System with Transformer monitoring heaters like windind and oil temperatures, Annunciators, tap position indicators with 4-20mA O/P, repeaters for winding & oil temperatures can be provided as optional features.
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EPOXY 
MONOBLOCK

 

Single and three phase cast Resin Monoblocks used for supplying Power to the outgoing LT feeders from oil filled Distribution Transformers at 0.433 Volt i.e 1 KV class. This is an alternative to the conventional mode of using 4 separate Porcelain Bushings – mounted on the LT side of the Transformer Tank. Application includes 11/0.433 kV Distribution Transformers.

  • Present product range comprises of 1.1 KV and 1700 Amps to 2500 Amps with multiple take-offs.
  • Meets BS 2562 requirements
  • Type tested at NABL accredited Laboratories
  • Complies with IEC 60137
  • Tested for 100% Oil Leakage under pressure
  • Cast under vacuum
  • Tin plated high conductivity copper terminals
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TRANSFORMER CONSERVATOR ISOLATION VALVE (TCIV)

TCIV, a non-returnable valve also called as Pre-stressed non return valve (PNRV), is used for isolating the electrical transformer conservator during abnormal flow of oil due to rupture of electrical transformer tank or bursting of electrical transformer bushing or while draining oil from the electrical transformer tank and also not to isolate the electrical transformer conservator during normal flow of oil during filtration or filling or refilling. Supplied more than 15000 worldwide and successfully operated more than 125 transformers \ reactors.

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EPOXY BUSHINGS (EXB)

Fitted on low voltage side of the transformer for application upto 5 MVA. Product range comprises of 1.1kV 1100A, 1400A, 2150A, 3300A, 4000A, 5000A

  • Type tested at NABL accredited Laboratories
  • Complies with IEC 60137 and IS:2099
  • Tested for 100% Oil Leakage under pressure
  • Cast under vacuum
  • Tin plated high conductivity copper terminals
  • Available upto total length of 465mm
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TAPCHANGER 
FILTER

Helps extend duration between periodic moisture removal filtration activities by maintaining breakdown voltage of oil in the tapchanger.

  • Reliable security protection
  • Frequent automatic online operation
  • Removal of metal particles and other impurities in oil
  • Extension of insulating oil service life
  • Reduction of the outage repair times of transformer
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OIL SURGE RELAY (OSR)

Responds to excessive oil flow in the direction of the conservator and generates a signal disconnecting the onload tap changer and the transformer. Gases generated during normal operation of the tap changer are collected in the gas compartment of the OSR and if the gas volume exceeds the volume the gas flows in the direction of the conservator.

  • Lightweight Aluminium Casting
  • Oil flow tripping at 1.5m/sec
  • Reed Switch Design.
  • IP67 & IP 55 compliant.
  • Leak proof.
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