ABB RET670 Product Manual page 4

Transformer protection RET670 ANSI
Pre-configured
Product version: 1.2
The wide application flexibility makes this product
an excellent choice for both new installations and
the refurbishment of existing installations.
Three packages have been defined for the following
applications:
• Two-winding transformer in single breaker
arrangements (A30A)
• Two-winding transformer in multi breaker
arrangements (B30A)
• Three-winding transformer in multi breaker
arrangements (B40A)
Optional functions are not configured but a
maximum configuration with all optional functions
4
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"
The applications are shown in figures 1, 2, and
single resp. multi-breaker arrangement.
1MRK 504 118-BUS A
3 for
ABB