Samlesbury Lancashire

Installation & commissioning of 2 x 11,5/23MVA, 33/11kV transformers
Samlesbury, Lancashire

Scope of work

  • Design, manufacture and testing of 1 x 15/30MVA, 33/11.5kV power transformer.
  • The transformer was delivered with radiators attached and conservator removed, using a low loader then off-loading via mobile crane and lifted into position. The transformer was then built up using the same crane.

Full in-house routine & partial discharge testing.

Full commissioning works as per the customer’s specification which includes;

  • Insulation resistance of each winding
  • Core & secondary circuits
  • Transformer ratio check
  • Vector group check by 3 phase low voltage energisation of transformer
  • Checks on all CTs & VTs for insulation resistance
  • Ratio & magnetisation curves
  • Operation of tapchanger through range & operation of limit switches
  • Operation of protection equipment
  • Oil sampling for routine
  • Water & dissolve gas analysis

Our Latest