Frequency - GE Power Quality Meter Series Instruction Manual

5.2 A1 METERING
]] ACTUAL VALUES
]] A1 METERING
MESSAGE
MESSAGE

] FREQUENCY

]
Figure 5–9: ACTUAL VALUES PAGE 1 – METERING / FREQUENCY
FREQUENCY: This message displays the frequency (in Hz). Frequency is calculated from the phase A-N volt-
age (when setpoint S2 SYSTEM SETUP \ CURRENT/VOLTAGE CONFIGURATION \ VT WIRING is WYE) or from phase A-B
voltage (when setpoint S2 SYSTEM SETUP \ CURRENT/VOLTAGE CONFIGURATION \ VT WIRING is DELTA). A value of
0.00 is displayed if there is insufficient voltage applied to the PQM's terminals (less than 30 V on phase A).
5
FREQUENCY MIN: This message displays the minimum frequency measured as well as the time and date at
which the minimum frequency occurred. The S1 PQM SETUP \ CLEAR DATA \ CLEAR MIN/MAX FREQUENCY VALUES
setpoint clears these values.
FREQUENCY MAX: This message displays the maximum frequency measured as well as the time and date at
which the maximum frequency occurred. The S1 PQM SETUP \ CLEAR DATA \ CLEAR MIN/MAX FREQUENCY VALUES
setpoint clears these values.
5-16
ACTUAL
]] ACTUAL VALUES
]] A2 STATUS
MESSAGE
FREQUENCY = 60.00 Hz
FREQ MIN = 59.98 Hz
12:00:00am
FREQ MAX = 60.01 Hz
12:00:00am
PQM Power Quality Meter
5 MONITORING
5.2.7 FREQUENCY
01/01/95
01/01/95
GE Power Management