POWER TRANSFORMER

Doble Lemke provides diagnostics and testings on-site or in the laboratory for:

 

  • Medium voltage transformers
  • High voltage transformers

 

As an significant and expensive component in the energy distribution, a high level of reliablity of transformers is very important. Unplanned outages, cost of repairs or fine cause enormous costs. The right maintenance strategy can minimize risks and ensures the security of energy supply.

Available Tests

  • Withstand Voltage Test
  • Partial Discharge Test (EL, AE, UHF)
  • DLA (TAN/PF, Watts, CAP)
  • Sweep Frequency Response Analysis
  • Resistance
  • Oil-Analysis

Benefits

  • High degree of security of energy supply
  • Reduction of costs
  • Repairing of relevant elements

Standards

IEC 60076-1 Power transformers, general (Amendment)

IEC 60076-3

 Insulation levels, dielectric test and external clearances in air

IEC 60076-5

 Ability to withstand short-circuit
IEC 60076-11 Dry-type power transformers
IEC 60289 Reactors

IEC 60353 

 Line traps for power line carrier systems
IEC 60310 Railway applications - traction transformers and inductors on board rolling stock
IEEE C57.113 Guide for partial discharge in liquid-filled power transformers and shunt reactors

DIN EN 60422
                       

 Mineral insulating oils in electrical equipment - supervision and maintenance guidance

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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