Rectifier Transformer
Rectifier Transformer
(OP)
Hi everybody.
Could somebody tell me if typical ANSI trough-fault protection curve can be applied on a 3-winding rectifier transformer?
Could somebody tell me if typical ANSI trough-fault protection curve can be applied on a 3-winding rectifier transformer?





RE: Rectifier Transformer
Using such transformers I have usually applied the following kind of protection:
- current transformers on each secondary, connected to the rectifier control unit which was able to trip the primary circuit breaker via a undervoltage release coil in case of a failure
- additionaly the primary ciruit breaker was set up to trip on very large fault currents
RE: Rectifier Transformer
For ANSI regions, one salient reference may be IEEE Std C57.18.10-1998 ...Practices and Requirements for Semiconductor Power Rectifier Transformers with TOC at standards.ieee.org/reading/ieee/std_public/description/dtransformers/C57.18.10-1998_desc.html