User manual - Annex III
High Voltage Instrument Transformers | DDB/DFK/DDN/DFN
ANNEX III
ELECTRICAL FIELD TESTING
All ARTECHE transformers are assessed at our High Voltage laboratories, under the strictest criteria of international standards and/or
under specifi c client standards/specifi cations when so requested. All of it under a thorough quality system, certifi ed under ISO 9001.
However, it is normal for pre-operative tests to be performed in order to confi rm certain important equipment values. The following
is a guide to the most common on-site tests and the proper way to perform them on ARTECHE brand transformers.
This annex applies to the following equipment:
› Capacitive Voltage Transformers, DDB Series, Models: DDB-72..170.
› Capacitive Voltage Transformers, DFK Series, Models: DFK-245..765.
› Coupling Capacitors, DDN Series, Models DDN-72..170.
› Coupling Capacitors, DFN Series, Models DFN-245..765.
