Don’t Underestimate the Importance of Regular Transformer Tests

The importance of transformer tests is all too often underrated. However, the accuracy of transducers has a huge influence on accounting systems, and tests help to significantly reduce the risk of mixing up different instrument transformers or their connections. Tests can also help identify transportation damage inside a transformer.

When it comes to detecting effects that can occur within the life cycle of a transformer such as shorted coils, loss of class accuracy due to material changes, or changes to the load, regularly scheduled tests are essential.

Vanguard EZCT-2000 2A Automated CT Test SetThe Vanguard EZCT-2000A microprocessor-based Current Transformer Test Set can perform the Current Transformer (CT) excitation test, measure the CT winding resistance and CT current-ratio automatically. All of the Vanguard EZCT-2000A’s test leads can be connected to the CT output terminals, eliminating the need for lead switching during testing. Test voltage output is automatically raised and lowered by the Vanguard EZCT-2000A without any operator intervention. With up to 2000 Vac excitation test voltage available, the Vanguard EZCT-2000A can easily perform excitation tests on very large CT’s.




– Excitation Test

– CT Ratio and Polarity Test

– CT Winding Resistance Test

– User Interface and Display

– Thermal Printer

– Test Record Header Information

– Internal Test Record Storage Capacity

– Internal Test Plan Storage Capacity

– External Data Storage

– Computer Interface


Vanguard is one brand you can count on, and Protec offers for rent, lease or purchase, all the electrical testing equipment you need to get the job done.