Basingstoke Hampshire

Installation & commissioning of 2 x 15/30MVA, 33/11.5kV transformers
Bishopstoke, Hampshire

Scope of work

  • Design, manufacture and testing of 2 x 15/30MVA, 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 multi-directional skid.

Full in-house routine, & 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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