probability of coming into operation need to be checked when commissioned to verify the
configuration and settings.
10.2
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.
10.3
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.
Section 10
1MRK 511 366-UUS -
Testing IED operation
84
Commissioning manual
Summary of Contents for RES670 2.1
Page 1: ...Relion 670 series Phasor measurement unit RES670 2 1 ANSI Commissioning manual ...
Page 2: ......
Page 14: ...8 ...
Page 56: ...50 ...
Page 60: ...54 ...
Page 68: ...62 ...
Page 86: ...80 ...
Page 102: ...96 ...
Page 178: ...172 ...
Page 200: ...194 ...
Page 201: ...195 ...