Table of Contents
Advertisement
8.1 INTRODUCTION
This command is used to manually close the breaker. If two breakers are being controlled by the relay, each
breaker must be closed individually. If the relay is controlling two breakers when this category is selected, the
relay will request which breaker to close.
The user presses [1] or [2] (any other Data Entry key will cause an error message to be displayed) followed by
the [ENT] key to indicate the breaker. If the relay is controlling only one breaker, this query is skipped.
The relay will ask whether to close the selected breaker. Press [3/N] (NO) or [1/Y] (YES) followed by the [ENT]
key. If NO is selected, CANCELED appears on the display and no LPS-D action occurs. If YES is selected, the
checks are performed for the control or master privilege level and whether Communication is in the process of
performing an action. If the checks fail then an error message is displayed and the action is not performed. If
the checks pass then the action is performed and either BREAKER x CLOSED or NOT CLOSED is displayed
(depending on breaker status). If a key other than [3/N] or [1/Y] is pressed, an error message is displayed and
the breaker is not closed.
This command tests the protection functions of the relay. MASTER password level privilege is required and
protection must be enabled to perform this test. If protection has been turned off before entering this test, the
relay will prompt to enable it. If the [3/N] (NO) key is pressed, CANCELED is displayed and the test is can-
celed. If the [1/Y] (YES) key is pressed, the user will be asked if the digital outputs should be disabled.
Whether protection was just turned on or was already on when this test was selected, the relay asks to disable
the digital outputs. If the answer is YES, all outputs except contact A1 are disabled and the status LED turns
RED to indicate the digital outputs have been disabled. They may be enabled when End Test Mode is
selected. If the answer is NO, all the digital outputs will stay active during the test.
NOTE: During relay test, all results from the tests will be output to contact A1 whether the digital out-
puts are enabled or disabled.
When the relay test items are displayed, the cursor will be positioned on the second line. Additional tests can
be displayed with the arrow keys or by entering the test number followed by the [ENT] key. The entered digits
are echoed in the top right corner of the display. If the [ENT] key is pressed and the entered number is valid,
the test item corresponding to that number is displayed. A test item can also be selected by moving the cursor
8
to the item and pressing the [ENT] key. At this point a check is performed to make sure that communication is
not in the process of performing an action. If the check fails then an error message is displayed and the test is
not selected. When the test is selected, the word ON will be displayed to the right of the unit under test.
One test may be performed at a time. When a new test is selected, the previous test will be deselected.
8-
12
RELAY TEST
1.End Test Mode
2.Zone 1 AG
3.Zone 1 BG
RELAY TEST
31.ANY Z2 PHASE
ON
32.ANY Z3 PHASE
33.ANY Z4 PHASE
LPS-D Line Protection System
8 LOCAL USER INTERFACE
8.1.15 CLOSE BREAKER
8.1.16 RELAY TEST
GE Power Management
Advertisement
Table of Contents
