Ultra High Voltage Engineering (Transmission Equipment & Systems)

OBJECTIVES

The Centre of Excellence – Ultra High Voltage Laboratory (COE- UHV) established at Corporate R&D, Hyderabad, has two distinct functional areas – high voltage dielectric test facility and centre for assembly of gas-insulated substation (GIS) modules in controlled environment.

FACILITIES

  • Impulse voltage generator: 2800 KV, 280 kJ
  • Gas filled test transformer: 1000 kV, 0.5A
  • Partial discharge measurement system
  • Clean room facility for GIS assembly
  • VSRS storage system
  • SF6 gas handling system
  • Circuit breaker speed analyzer
  • High current generator for heat- run testing of GIS modules.

CORE STRENGTHS

  • Electromagnetic field analysis
  • Circuit analysis
  • Design optimization and development of HV equipment
  • Diagnosis and condition monitoring of power equipment
  • Residual life assessment of electrical apparatus
  • Online data acquisition and development of GUI based software for HV applications

SIGNIFICANT DEVELOPMENTS

  • The lab is working on development of 245 kV, 420 kV FOCT.
  • In transformer technology this lab is providing solution for problems faced by Bhopal and Jhansi transformer group from traction transformers to 765kV HVDC transformers. The lab is working for development of new transformer technology and products like Scott Connected transformer.
  • In ESP area the lab is developing spark gap based pulse power supply.