ABB RELION 670 Series Technical Manual page 1261

Generator protection

Hide thumbs Also See for RELION 670 Series:

Table of Contents

1MRK 502 066-UUS B

ANSI05000119 V2 EN-US

Figure 633: Connection of the function to external circuits

The above example also includes seven output signals, for confirmation of which group that is

Test mode functionality TEST

Functionality

When entering IED test mode there is an option to block all functions. Active test mode is

indicated by a flashing yellow Pickup LED on the LHMI. After that, it is possible to unblock

arbitrarily selected functions from the LHMI to perform required tests.

When leaving TESTMODE, all blockings are removed (except for functions that have their block

input active), and the IED resumes normal operation. However, if during TESTMODE operation,

power is removed and later restored, the IED will remain in TESTMODE with the same protection

functions blocked or unblocked as before the power was removed. All testing will be done with

actually set and configured values within the IED. No settings will be changed, thus mistakes are

Forcing of binary input and output signals is only possible when the IED is in IED test mode.

Technical manual

ACTIVATE GROUP 6

ACTIVATE GROUP 5

ACTIVATE GROUP 4

ACTIVATE GROUP 3

ACTIVATE GROUP 2

ACTIVATE GROUP 1

Basic IED functions

ANSI05000119-2-en.vsd

Chapters

Table of Contents