GE Power Management
745 Transformer Management Relay
5-87
5 SETPOINTS
5.8 S6 TESTING
5
5.8 S6 TESTING
5.8.1 DESCRIPTION
The 745 provides various diagnostic tools to verify the relay functionality. The normal function of all output con-
tacts can be overridden and forced to be energized or de-energized. Analog outputs may be forced to any level
of their output range. The simulation feature allows system parameters (magnitudes and angles) to be entered
as setpoints and made to generate fault conditions without the necessity of any system connections. In addi-
tion, 16 cycles of sampled current/voltage waveform data (in IEEE Comtrade file format) can be loaded and
“played back” to test the response of the 745 under any (previously recorded) system disturbance.
5.8.2 OUTPUT RELAYS
The 745 has the ability to override the normal function of all outputs, forcing each to energize and de-energize
for testing. Enabling this feature turns the IN SERVICE indicator off and the TEST MODE indicator on.
5.8.3 ANALOG OUTPUTS
The 745 has the ability to override the normal function of analog transducer outputs, forcing each to any level
of its output range. Enabling this feature turns the TEST MODE indicator on and de-energize the self-test relay.
yy
SETPOINTS
yy
S6 TESTING
This message indicates the start of setpoints page
S6 TESTING
. Press
to view the contents or
to go on to the next page.
y
OUTPUT RELAYS
y
[ENTER] for more
This message indicates the start of the
OUTPUT RELAYS
section. To continue
these setpoints press
or press
for the next section.
FORCE OUTPUT RELAYS
FUNCTION: Disabled
Range: Disabled / Enabled
Select
Enabled
to enable the output relay testing feature and override normal
output relay operation. This setpoint is defaulted to
Disabled
at power on.
FORCE OUTPUT 1:
De-energized
Range: De-energized / Energized
Select
Energized
to force Output 1 (2-8) to the energized state. Select
De-
energized
to force Output 1 (2-8) to the de-energized state. This setpoint is
only operational while the output relay testing feature is enabled.
FORCE SELF-TEST RLY:
De-energized
Range: De-energized / Energized
Select
Energized
to force the self-test relay to the energized state and
De-
energized
to force to the de-energized state. This setpoint is only operational
while the output relay testing feature is enabled.
y
ANALOG OUTPUTS
y
[ENTER] for more
This message indicates the start of the
ANALOG OUTPUTS
section. To continue
these setpoints press
or press
for the next section.
FORCE ANALOG OUTPUTS
FUNCTION: Disabled
Range: Disabled / Enabled
Select
Enabled
to enable the analog output testing and override the analog
output normal operation. This setpoint defaults to
Disabled
at power on.
FORCE ANALOG OUT 1:
0%
Range: 0 to 100 (steps of 1)
Enter the percentage of the DC mA output range of Analog Output 1 (2–7).
For example, if the analog output range has been programmed to
4-20 mA
,
entering
100%
outputs 20 mA,
0%
outputs 4 mA, and
50%
outputs 12 mA.
This setpoint is only operational if analog output testing is enabled.
M E SSA G E
S ET P O IN T
EN T E R
M E SSA G E
EN T E R
M E SSA G E
Summary of Contents for 745 TRANSFORMER MANAGEMENT RELAY
Page 30: ...2 8 745 Transformer Management Relay GE Power Management 2 3 SECURITY 2 GETTING STARTED 2 ...
Page 210: ...7 36 745 Transformer Management Relay GE Power Management 7 2 BLOCK DIAGRAMS 7 SCHEME LOGIC 7 ...
Page 322: ...9 12 745 Transformer Management Relay GE Power Management 9 3 USING 745PC 9 745 PC SOFTWARE 9 ...
Page 396: ...A 4 745 Transformer Management Relay GE Power Management A 1 FIGURES AND TABLES APPENDIXA A ...
Page 400: ...C 2 745 Transformer Management Relay GE Power Management C 1 WARRANTY INFORMATION APPENDIXC C ...
Page 406: ...vi 745 Transformer Management Relay GE Power Management ...
Page 407: ...GE Power Management 745 Transformer Management Relay NOTES ...
