GE Power Management
745 Transformer Management Relay
5-69
5 SETPOINTS
5.6 S4 ELEMENTS
5
b) VOLTS-PER-HERTZ 1 (2)
y
VOLTS-PER-HERTZ 1
y
[ENTER] for more
This message indicates the start of the section describing the characteristics
of the
VOLTS-PER-HERTZ 1(2)
element. To continue these setpoints press
or press
for the next section.
VOLTS-PER-HERTZ 1
FUNCTION: Disabled
Range: Disabled / Enabled
VOLTS-PER-HERTZ 1
TARGET: Self-reset
Range: Self-reset / Latched / None
Select
None
to inhibit the display of the target message when the element
operates. Thus an element whose “target type” is
None
will never disable the
LED self-test feature because can not generate a displayable target
message.
MINIMUM OPERATING
VOLTAGE: 0.10 x VT
Range: 0.10 to 0.99 (steps of 0.01)
Enter the minimum value of voltage (in terms of nominal VT secondary
voltage) required to allow the volts-per-hertz 1 element to operate.
VOLTS-PER-HERTZ 1
PICKUP: 2.36 V/Hz
Range: 1.00 to 4.00 (steps of 0.01)
Enter the volts-per-hertz value (in V/Hz) above which the volts-per-hertz 1
element will pickup and start the delay timer.
VOLTS-PER-HERTZ 1
SHAPE: Definite Time
Range: Definite Time / Inv Curve 1 / Inv Curve 2 / Inv Curve 3
Select the curve shape to be used for the volts-per-hertz 1 (2) element. A
description of inverse volts-per-hertz curve shapes can be found at the end
of this chapter.
VOLTS-PER-HERTZ 1
DELAY: 2.00 s
Range: 0.00 to 600.00 (steps of 0.01)
Enter the time that the volts-per-hertz value must remain above the pickup
level before the element operates.
VOLTS-PER-HERTZ 1
RESET: 0.0 s
Range: 0.0 to 6000.0 (steps of 0.01)
Enter the time that the volts-per-hertz value must remain below the pickup
level before the element resets.
VOLTS-PER-HERTZ 1
BLOCK: Disabled
Range: Disabled / Logc Inpt 1 (2-16) /Virt Inpt 1 (2-16) / Output Rly 1 (2-8) /
SelfTest Rly / Virt Outpt 1 (2-5)
E N TE 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 ...
