GE Multilin 565 Instruction Manual page 61

Location Message Line
Message S 2.22 will only appear if ENABLED is selected in message S 2.21.
S 2.22
PH AUTOBLK LOSET
AFTER RECL.#
Messages S 2.23 and S 2.24 will only appear if CUSTOM CURVE1 was selected in message S 2.4.
S 2.23
TRIP TIME (SEC)
L
1.03 xPU=
A
S 2.24
TRIP TIME (SEC)
20.0 xPU=
S 2.25
PHASE CURRENT
END OF PAGE
Description
Determines after which reclosure the PHASE LOSET INST TRIP will be
disabled (blocked).
4
The programmable curve for the phase overcurrent protection is set up in
the following messages. The trip time for the first breakpoint is requested
1.0
here. There are 79 breakpoints in total, each corresponding to a multiple of
the pickup current. A time to trip must be entered for each breakpoint, in
the range of 0.1 seconds to 1092.2 seconds in steps of 0.1 second.
Determine the required times by referring to the system plot. In the
following messages the trip times are entered for each multiple of the
pickup current in these ranges:
a) 1.03, and 1.1 to 5.9 in steps of 0.1.
b) 6.0 to 20.0 in steps of 0.5.
All the values in these ranges will appear in the following messages
automatically as the LINE DOWN key is pressed. As each message
appears, enter the time to trip for current represented by this multiple of
pickup current, and store the value. When the LINE DOWN is pressed, the
message with the next increment of pickup current multiplier will appear
until a multiplier of 20.0 is reached as shown in message S 2.16. The
intermediate messages are in the same format and are not shown. When
a time multiplier of 20 is reached, pressing the LINE DOWN key will cause
the display to return to message S 2.15. When finished entering values,
press the PAGE key to view setpoints page 3.
The trip time for the last breakpoint, 20 times the pickup level, is entered
here. The Custom Curve should not be programmed with uphill specs
1.0
since no positive slopes are maintained.
This is the last line of page 2 Setpoints when the custom curve is not
selected as the overcurrent curve shape. Press PAGE to view page 3.
SETPOINTS MODE - PHASE CURRENT
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