Trafford Greater Manchester

Installation, build-up & commissioning of 2 x 11.5/23MVA transformer.
Trafford, Greater Manchester

Scope of work

  • Design, manufacture and testing of 2 x 11.5/23MVA, 33/11.5kV,  power transformers.
  • Delivery using a short file steerable trailer for site access then off-loading via hydraulic jacking and skating with a single-directional skid & rotation.

Full in-house routine, noise & partial discharge testing.

Full commissioning works as per the customers specification which includes;

  • Insulation resistance of each winding
  • core & secondary circuits
  • transformer ratio check
  • vector group check by 3 phase low voltage energization of transformer
  • checks on all CTs & VTs for insulation resistance
  • ratio & magnetization curves
  • operation of tapchanger through range & operation of limit switches
  • operation of protection equipment
  • oil sampling for routine
  • water & dissolve gas analysis

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