For this reason, the safety devices on your systems should be checked regularly to ensure that safety – particularly that of your staff – is not endangered if faults should occur.

Testing in the medium voltage and low voltage sectors:

• Surge current time relay
• Transformer differential relay
• Power differential relay and
• Distance protection relay

Testing of medium voltage and low voltage systems, tansformers and cable terminations

• Station earthing measurement
• 10 kV/20 kV/30 kV AC testing
• Insulation measurement on oil and cast resin transformers