GE 745 Instruction Manual page 204

Transformer protection system
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S6 TESTING
5.8.3
Analog Outputs
ANALOG OUTPUTS []
5.8.4
Simulation
5.8.4.1 Main Menu
SIMULATION
5.8.4.2 Simulation Setup
SIMULATION
SETUP
5–108
PATH: SETPOINTS
S6 TESTING

FORCE ANALOG OUTPUTS
FUNCTION: Disabled
FORCE ANALOG OUT 1:
MESSAGE
0%
FORCE ANALOG OUT 7:
MESSAGE
0%
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 LED
on and de-energize the self-test relay.
FORCE ANALOG OUTPUT FUNCTION: 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(7): Enter the percentage of the DC mA output range of analog
output 1(7). For example, if the analog output range has been programmed to 4 to 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.
PATH: SETPOINTS
S4 ELEMENTS

[
]
MESSAGE
MESSAGE
PATH: SETPOINTS
S6 TESTING

[]
SIMULATION FUNCTION:
Disabled
BLOCK OPERATION OF
MESSAGE
OUTPUTS: 12345678
START FAULT MODE
MESSAGE
SIGNAL: Disabled
START PLAYBACK MODE
MESSAGE
SIGNAL: Disabled
The simulation feature allows testing of the functionality of the relay in response to
programmed conditions, without the need of external AC voltage and current inputs.
System parameters such as currents and voltages, phase angles and system frequency
ANALOG OUTPUTS

INSULATION AGING

SIMULATION
[
]
SETUP
PREFAULT
[
]
VALUES
FAULT VALUES [
]
SIMULATION

745 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 5: SETPOINTS
Range:
Enabled, Disabled
Range:
0 to 100% in steps of 1
Range:
0 to 100% in steps of 1
See below.
See page 5–110
See page 5–110
SIMULATION SETUP
Range:
Disabled, Prefault Mode, Fault
Mode, Playback Mode
Range:
Any combination of outputs 1
to 8
Range:
Disabled, Logc Inpt 1 to 16
Range:
Disabled, Logc Inpt 1 to 16

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