Dielectric tests are performed to verify transformer integrity in the event of voltage stresses, which can appear as a result of normal as well as abnormal operation. The voltage levels and duration are outlined in the relevant IEC & IEEE standards. These are typically a multiple of the required voltage class; however, higher levels can be agreed upon for certain applications.
Large and medium power transformers
If you want to purchase a product, need any pricing information or need help or support from ABB, please contact your local partner.