GE 489 - Manual (Page 220)

7-8 489 Generator Management Relay GE Multilin
7.2 HARDWARE FUNCTIONAL TESTS 7 TESTING
7
0 to 1 mA ANALOG INPUTS:
1. Alter the following setpoints:
S11 ANALOG I/O ÖØ ANALOG INPUT1 Ö ANALOG INPUT1: "0-1 mA"
S11 ANALOG I/O ÖØ ANALOG INPUT1 ÖØ ANALOG INPUT1 MINIMUM: "0"
S11 ANALOG I/O ÖØ ANALOG INPUT1 ÖØ ANALOG INPUT1 MAXIMUM: "1000" (repeat for Analog Inputs 2 to 4)
2. Analog output values should be ±0.01 mA on the ammeter. Measured analog input values should be ±10 units. Force
the analog outputs using the following setpoints:
S12 TESTING ÖØ TEST ANALOG OUTPUT Ö FORCE ANALOG OUTPUTS FUNCTION: " Enabled"
S12 TESTING ÖØ TEST ANALOG OUTPUT ÖØ ANALOG OUTPUT 1 FORCED VALUE: "0%" (enter %, repeat for Outputs 2 to 4)
Verify the ammeter readings as well as the measured analog input readings. View the measured values in:
A2 METERING DATA ÖØ ANALOG INPUTS
7.2.9 OUTPUT RELAYS
To verify the functionality of the output relays, perform the following steps:
1. Using the setpoint:
S12 TESTING ÖØ TEST OUTPUT RELAYS ÖØ FORCE OPERATION OF RELAYS: "R1 Trip"
select and store values as per the table below, verifying operation
The R6 Service relay is failsafe or energized normally. Operating R6 causes it to de-energize.
ANALOG
OUTPUT
FORCE
VALUE
EXPECTED
AMMETER
READING
MEASURED AMMETER READING
(MA)
EXPECTED
ANALOG INPUT
READING
MEASURED ANALOG INPUT
READING (UNITS)
1 2 3 4 1 2 3 4
0% 0 mA 0 units
25% 0.25 mA 250 units
50% 0.50 mA 500 units
75% 0.75 mA 750 units
100% 1.00 mA 1000 units
FORCE
OPERATION
SETPOINT
EXPECTED MEASUREMENT
( FOR SHORT)
ACTUAL MEASUREMENT
( FOR SHORT)
R1 R2 R3 R4 R5 R6 R1 R2 R3 R4 R5 R6
NO NC NO NC NO NC NO NC NO NC NO NC NO NC NO NC NO NC NO NC NO NC NO NC
R1 Trip
R2 Auxiliary
R3 Auxiliary
R4 Auxiliary
R5 Alarm
R6 Service
All Relays
No Relays
NOTE