Who needs to perform insulating oil dielectric breakdown voltage tests?
There are many types of organisation that benefit from carrying out tests on transformer oil. These include:
(1) Utility contractors (principally in substations)
(2) Utility companies (principally in power stations)
(3) Rail companies (locomotive HV step-down transformers and switchgear)
(4) Oil test laboratories (providing testing services)
(5) Transformer and switchgear manufacturers (quality control of oil)
(6) Oil companies (testing new oil during manufacture)