ABB RELION 670 Series Product Manual page 4

Transformer protection RET670 2.1 IEC
Six packages have been defined for the following
applications:
• Transformer back-up protection (A10)
• Voltage control (A25)
• Two-winding transformer in single breaker
arrangements (A30)
• Two-winding transformer in multi breaker
arrangements (B30)
• Three-winding transformer in single breaker
arrangements (A40)
• Three-winding transformer in multi breaker
arrangements (B40)
4
SEMOD51222-5 v8
Optional functions are not configured but a maximum
configuration with all optional functions are available as
template in the graphical configuration tool. An
alternative for Autotransformers is also available as a
configuration template. Analog and tripping IO has been
pre-defined for basic use on the, as standard supplied
one binary input module and one binary output module.
Add binary I/O as required for your application at
ordering. Other signals need to be applied as required
for each application.
For details on included basic functions, refer to chapter
"Basic IED functions"
1MRK 504 155-BEN F
ABB