GE Multilin
T35 Transformer Protection System
7-5
7 COMMANDS AND TARGETS
7.2 TARGETS
7
7.2TARGETS
7.2.1 TARGETS MENU
Each T35 element with a TARGET setting has a target message that when activated by its element is displayed in
sequence with any other currently active target messages in the
TARGETS
menu. In the example shown, the Digital Counter
1 and Digital Counter 16 target settings are active (and none between the two) and so have their targets displayed. The
down arrow below the two elements indicates that there can be other active elements beyond these two.
For more information, see the description of target messages in the next section, and the Introduction to Elements section
in the Settings chapter for instructions on TARGET setting.
When no targets are active, the display reads
NO ACTIVE TARGETS
.
7.2.2 TARGET MESSAGES
When there are no active targets, the first target to become active will cause the display to immediately default to that mes-
sage. If there are active targets and the user is navigating through other messages, and when the default message timer
times out (i.e. the keypad has not been used for a determined period of time), the display will again default back to the tar-
get message.
The range of variables for the target messages is described below. Phase information will be included if applicable. If a tar-
get message status changes, the status with the highest priority will be displayed.
If a self test error is detected, a message appears indicating the cause of the error. For example
UNIT NOT PROGRAMMED
indicates that the minimal relay settings have not been programmed.
7.2.3 RELAY SELF-TESTS
a) DESCRIPTION
The relay performs a number of self-test diagnostic checks to ensure device integrity. The two types of self-tests (major and
minor) are listed in the tables below. When either type of self-test error occurs, the Trouble LED Indicator will turn on and a
target message displayed. All errors record an event in the event recorder. Latched errors can be cleared by pressing the
RESET key, providing the condition is no longer present.
Major self-test errors also result in the following:
•
The critical fail relay on the power supply module is de-energized.
•
All other output relays are de-energized and are prevented from further operation.
•
The faceplate In Service LED indicator is turned off.
TARGETS
MESSAGE
DIGITAL COUNTER 1:
LATCHED
Displayed only if targets for this element are active.
Example shown.
MESSAGE
DIGITAL COUNTER 16:
LATCHED
Displayed only if targets for this element are active.
Example shown.
MESSAGE
Table 7–1: TARGET MESSAGE PRIORITY STATUS
PRIORITY
ACTIVE STATUS
DESCRIPTION
1
OP
element operated and still picked up
2
PKP
element picked up and timed out
3
LATCHED
element had operated but has dropped out
Summary of Contents for T35 UR Series
Page 10: ...x T35 Transformer Protection System GE Multilin TABLE OF CONTENTS ...
Page 48: ...2 18 T35 Transformer Protection System GE Multilin 2 2 SPECIFICATIONS 2 PRODUCT DESCRIPTION 2 ...
Page 314: ...5 192 T35 Transformer Protection System GE Multilin 5 10 TESTING 5 SETTINGS 5 ...
Page 338: ...6 24 T35 Transformer Protection System GE Multilin 6 5 PRODUCT INFORMATION 6 ACTUAL VALUES 6 ...
Page 350: ...7 12 T35 Transformer Protection System GE Multilin 7 2 TARGETS 7 COMMANDS AND TARGETS 7 ...
Page 366: ...8 16 T35 Transformer Protection System GE Multilin 8 2 CYBERSENTRY 8 SECURITY 8 ...
Page 406: ...A 14 T35 Transformer Protection System GE Multilin A 1 PARAMETER LISTS APPENDIX A A ...
Page 540: ...D 10 T35 Transformer Protection System GE Multilin D 1 IEC 60870 5 104 PROTOCOL APPENDIX D D ...
Page 552: ...E 12 T35 Transformer Protection System GE Multilin E 2 DNP POINT LISTS APPENDIX E E ...
Page 560: ...F 8 T35 Transformer Protection System GE Multilin F 3 WARRANTY APPENDIX F F ...
