Activating The Test Mode; Preparing The Connection To The Test Equipment - ABB REG670 Commissioning Manual

Section 12
Testing IED operation
12.2
12.3
126
probability of coming into operation need to be checked when commissioned to verify
the configuration and settings.

Activating the test mode

Put the IED into the test mode before testing. The test mode blocks all protection
functions and some of the control functions in the IED, and the individual functions to
be tested can be unblocked to prevent unwanted operation caused by other functions. In
this way, it is possible to test slower back-up measuring functions without the
interference from faster measuring functions. The test switch should then be connected
to the IED.Test mode is indicated when the yellow PickupLED flashes.
It is important that the IED function to be tested is put into test mode, even if the MU
is sending data marked as "test". The IED will interpret these data as valid if it is not in
test mode.
1. Browse to the TESTMODE menu and press E.
The TESTMODE menu is found on the local HMI under Main menu/Test/IED
test mode/TESTMODE
2. Use the up and down arrows to choose Enabled and press E.
3. Press the left arrow to exit the menu.
The dialog box Save changes appears.
4. Choose Yes, press E and exit the menu.
The yellow pickupLED above the LCD will start flashing when the IED is in test
mode.

Preparing the connection to the test equipment

The IED can be equipped with a test switch of type RTXP8, RTXP18 or RTXP24 or
FT. The test switch and its associated test plug handles are a part of the COMBITEST
or FT system of ABB, which provides secure and convenient testing of the IED.
When using the COMBITEST, preparations for testing are automatically carried out in
the proper sequence, that is, for example, blocking of tripping circuits, short circuiting
of CTs, opening of voltage circuits, making IED terminals available for secondary
injection. Terminals 1 and 8, 1 and 18 as well as 1 and 12 of the test switches RTXP8,
RTXP18 and RTXP24 respectively are not disconnected as they supply DC power to
the protection IED. When FT switch is used for testing, care shall be exercised to open
the tripping circuit, ahead of manipulating the CT fingers.
Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062
1MRK 502 073-UUS A
M11412-2 v14
M11743-2 v8
Commissioning manual