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8.2 INFORMATION
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.
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 val-
NOTE
ues, the voltage units will be KV and the current units will still be A. The RMS present values are always displayed
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 Equipment Duty General
Settings. In general, the units of breaker duty are (Amps)
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 LPSO-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.
The ALPS has 12 contact converters. The contact converter is OPEN if the status is a '0'. The contact converter is
CLOSED if the status is a '1'. If no digital input is assigned to a contact converter, its status information will still be
NOTE
displayed along with the contact converter number but the name will be blank.
This command displays the definition and the state of each digital output in the relay. This information is displayed three
lines at a time. Use the arrow keys to scroll through the digital outputs (displayed in groups).
The Trip Outputs have the letter T in front of the output contact number. Alarm Contacts have the letter A in front of the out-
put contact number. The two Form C output contacts have the letter C in front of the number. The Critical Alarm is just
labeled CA.
8
The above example is for the Single Phase Tripping model version of the relay. The Three Phase Tripping model is
similar except that the DO status displayed are: T1 – T4, A1 – A8, KT1 – KT4, C1 – C2 AND CA.
NOTE
If the DO status is shown as 0 it means it is open. If it is 1, it is closed.
8-18
X
(Seconds) where X is General Setting 401: EXPONENT.
CC STATUS
1.52B_1A : 0
2.52B_1B : 1
3.52B_1C : 0
DO STATUS
T1 - T4 : 1 0 1 1
T5 - T6 : 0 0
A1 - A4 : 0 1 0 0
ALPS Advanced Line Protection System
8 LOCAL USER INTERFACE
8.2.4 REQUEST PRESENT VALUES
8.2.5 CONTACT CONVERTER STATUS
8.2.6 DIGITAL OUTPUT STATUS
GE Power Management
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