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5.4 S2 SYSTEM SETUP
There are seven analog outputs on the 745 relay which are selected to provide a full-scale output range of one
of 0-1 mA, 0-5 mA, 4-20 mA, 0-20 mA or 0-10 mA. Each channel can be programmed to monitor any mea-
sured parameter. This sub-section is only displayed with the option installed.
S ANALOG OUTPUTS
S [ENTER] for more
S ANALOG OUTPUT 1
S [ENTER] for more
ANALOG OUTPUT 1
FUNCTION: Disabled
ANALOG OUTPUT 1
VALUE: W1 ∅A Current
W1 (2/3) fA (B/C) Current
W1 (2/3) Loading
5
W1 (2/3) fA (B/C) THD
W1 (2/3) Derating
W1 (2/3) fA (B/C) Demand
Max Event W1 (2/3)
ANALOG OUTPUT 1
RANGE: 4-20 mA
ANALOG OUTPUT 1
MIN: 0 A
ANALOG OUTPUT 1
MAX: 1000 A
5-42
This message indicates the start of the ANALOG OUTPUTS section. To continue
with these setpoints press
section.
This message indicates the start of the analog output 1 (2-7) setpoints of the
analog outputs. To continue with these setpoints, press
to go to the next section.
M E SSA G E
Range: Disabled / Enabled
This message enables or disables the analog output 1 (2-7) feature. When
disabled, 0 mA will appear at the corresponding terminal.
Range: see below
Select the measured parameter to be represented by the mA DC current
level of analog output 1 (2-7).
Select to monitor the RMS value (at fundamental frequency) of the winding 1 (2/3)
phase A (B/C) current input.
Select to monitor the winding 1 (2/3) load as a percentage of the rated load for that
winding.
Select to monitor the total harmonic distortion in the winding 1 (2/3) phase A (B/C)
current input.
Select to monitor the harmonic derating factor (i.e. the derated transformer
capability while supplying non-sinusoidal load currents) in winding 1 (2/3).
Frequency
Select to monitor the system frequency.
Tap Position
Select to monitor the onload tap changer position.
Voltage
Select to monitor the system voltage as measured from the voltage input.
Select to monitor the current demand value of the winding 1 (2/3) phase A (B/C)
current input.
Analog Input
Select to monitor the general purpose analog input current.
Select to monitor the maximum captured RMS value (at fundamental frequency) of
Ia (b/c/g)
the winding 1 (2/3) phase A (phase B / phase C / ground) current input for all events
since the last time the event recorder was cleared.
Range: 0-1 mA / 0-5 mA / 4-20 mA / 0-20 mA / 0-10 mA
Select the full-scale range of output current for analog output 1 (2-7).
Range: matches the range of the selected measured parameter.
Enter the value of the selected parameter which corresponds to the
minimum output current of analog output 1 (2-7).
Range: matches the range of the associated actual value
Enter the value of the selected parameter which corresponds to the
maximum output current of analog output 1 (2-7).
745 Transformer Management Relay
5.4.11 ANALOG OUTPUTS
, or press
EN TE R
M E SS AG E
GE Power Management
5 SETPOINTS
to go to the next
, or press
E N TE R
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