Connector Cables And Interfaces - ABB Relion REX640 User Manual

Section 4
BIO-Tester Relion® REX640
4.2
12
When planning periodical testing, it is assumed that the system is properly and
comprehensively commissioned. The scope of the periodical testing usually includes
injecting known current and voltage signals to verify measuring accuracy, protection
functionality and correct operation of input and output contacts. BIO-Tester enables
testing without separate test switches or disconnecting terminals inside the
installation. This approach speeds up the periodical testing.
The final trip test (operating the circuit breaker) should always be
done as a part of final commissioning checks while the relay is
installed on the switchgear panel.

Connector cables and interfaces

All the protection relay's binary input and output interfaces are available on the BIO-
Tester's front plate to be connected to the secondary terminals of REX640. The
marking of the interfaces corresponds to the markings of the protection relay's case
rear connections and the related relay connection terminal drawings.
2NGA000105 B
BIO-Tester Relion® REX640
User Manual