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8 LOCAL USER INTERFACE
Trip Types:
Z1
(Zone 1)
Z2
(Zone 2)
Z3
(Zone 3)
Z4
(Zone 4)
PLT
(Pilot)
50G
(Ground instantaneous overcurrent)
50P
(Phase instantaneous overcurrent)
51G
(Ground time delayed overcurrent)
LPU
(Line pick up)
This category displays the present analog values. They are updated every 4 seconds while being displayed.
The present values information is displayed in six different screens. Each time the [↓] key is pressed, the next
screen of information will be displayed. Using the [↑] key will display the information in reverse order.
The forward order of the information screens is: 1) RMS Values, 2) Power Factor, Frequency and Watts Vars,
3) Analog Values for Voltage, 4) Analog Values for Current, 5) Breaker Duty, and 6) Breaker Operations.
NOTE:
Currents and voltages are displayed in primary or secondary values depending on the value of General Setting
108. For secondary side values, the units of voltages will be V and the current units will be A. For primary side
values, the voltage units will be KV and the current units will still be A. The RMS present values are always dis-
played in primary units, when primary display is selected. The asterisk symbol (*) used for Watts; Vars can be:
blank, K (for 1000), or M (for 1,000,000). The breaker duty is calculated according to the values in the Equip-
ment Duty General Settings. In general, the units of breaker duty are (Amps)
Setting 401: EXPONENT. The breaker duty values are displayed with the units 'A' (A x sec.), 'K' (kA x sec., in
thousands) or 'M' (MA x sec., in millions). In the ALPS-Link program, the voltages will be shown in secondary
values only.
This category is used to display the state of each digital input monitored by the relay. They are updated every 4
seconds while they are displayed.
The number of the contact converter, the name of the digital input assigned to the contact converter and the
status of the converter are displayed on the same line. Three contact converter status are displayed at a time.
NOTE:
1. The LPS-D has 12 contact converters.
2. The contact converter is OPEN if the status is a '0'. The contact converter is CLOSED if the status is a '1'.
GE Power Management
REM
(Remote open)
WI
(Weak Infeed)
OSC
(Oscillography Trigger)
SZ1
(Single Pole Zone 1 Trip)
SZ2
(Single Pole Zone 2 Trip)
SPI
(Single Pole Pilot Trip)
SWI
(Single Pole Weak Infeed)
CTB
(configurable trip bus trip)
CC STATUS
1.52B_1A : 0
2.52B_1B : 1
3.52B_1C : 0
LPS-D Line Protection System
8.2 INFORMATION
8.2.4 REQUEST PRESENT VALUES
X
(Seconds) where X is General
8.2.5 CONTACT CONVERTER STATUS
8
8-
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