GE 745 TRANSFORMER MANAGEMENT RELAY

6-20 745 Transformer Management Relay GE Power Management
6.6 TARGET MESSAGES 6 ACTUAL VALUES
6
The bottom line of the display (i.e.,
<CAUSE>
) will be the name of the element that has been activated. Follow-
ing are the elements available on the 745 (and which may appear in an active target display).
The recorded event displayed for Logic inputs and Virtual Inputs will show the programmed name of the input/
output. An active target display may also be generated as a result of a self-test error. When this occurs, the tar-
get message will look like this:
<ERROR>
in the display will be one of the following:
For more detail about these errors, refer to Section 6.7: SELF-TEST ERRORS.
As well, there is an additional message that may appear as a target message. It looks like this:
This message will be placed in the target message queue whenever
S1 745 SETUP/INSTALLATION/745 SETPOINTS
is set to
Not Programmed
. This serves as a warning that the relay has not been programmed for the installation
and is therefore not in the in-service state.
Table 6–2: 745 PROTECTION ELEMENTS
Percent Differentl
Inst Differential
W1 Phase Time OC W2 Phase Time OC
W3 Phase Time OC W1 Phase Inst OC 1 W2 Phase Inst OC 1 W3 Phase Inst OC 1
W1 Phase Inst OC 2 W2 Phase Inst OC 2 W3 Phase Inst OC 2 W1 Ntrl Time OC
W2 Ntrl Time OC W3 Ntrl Time OC W1 Ntrl Inst OC 1 W2 Ntrl Inst OC 1
W3 Ntrl Inst OC 1 W1 Ntrl Inst OC 2 W2 Ntrl Inst OC 2 W3 Ntrl Inst OC 2
W1 Gnd Time OC W2 Gnd Time OC W3 Gnd Time OC W1 Gnd Inst OC 1
W2 Gnd Inst OC 1 W3 Gnd Inst OC 1 W1 Gnd Inst OC 2 W2 Gnd Inst OC 2
W3 Gnd Inst OC 2 W1 Rest Gnd Fault W2 Rest Gnd Fault W3 Rest Gnd Fault
W1 Neg Seq Time OC W2 Neg Seq Time OC W3 Neg Seq Time OC W1 Neg Seq Inst OC
W2 Neg Seq Inst OC W3 Neg Seq Inst OC Underfrequency 1 Underfrequency 2
Freq Decay Rate 1 Freq Decay Rate 2 Freq Decay Rate 3 Freq Decay Rate 4
Overfrequency 5th Harmonic Level Volts-per-hertz 1 Volts-per-hertz 2
W1 THD Level W2 THD Level W3 THD Level W1 Harmonic Derating
W2 Harmonic Derating W3 Harmonic Derating Analog Level 1 Analog Level 2
W1 Current Demand W2 Current Demand W3 Current Demand Xformer Overload
Logic Input 1 Logic Input 2 Logic Input 3 Logic Input 4
Logic Input 5 Logic Input 6 Logic Input 7 Logic Input 8
Logic Input 9 Logic Input 10 Logic Input 11 Logic Input 12
Logic Input 13 Logic Input 14 Logic Input 15 Logic Input 16
Virtual Input 1 Virtual Input 2 Virtual Input 3 Virtual Input 4
Virtual Input 5 Virtual Input 6 Virtual Input 7 Virtual Input 8
Virtual Input 9 Virtual Input 10 Virtual Input 11 Virtual Input 12
Virtual Input 13 Virtual Input 14 Virtual Input 15 Virtual Input 16
y SELF-TEST ERROR:
y <ERROR>
Logic Power Out Analog Output Emulation Software
Real-Time Clock Battery Bad Xfmr Settings
Flexlogic Eqn DSP Processor EEPROM Memory
Access Denied Not Calibrated Int Temperature
IRIG-B Signal
y SETPOINTS HAVE NOT
y BEEN PROGRAMMED!