—
08. Monitoring and reporting
Metering, Monitoring and Reporting functions
Metering and monitoring
M101
M102
Power information
Current L1,L2,L3 (A)
√
√
Current L1,L2,L3 (%)
1
√
√
Current unbalance (%)
2
√
√
Thermal capacity (%)
√
√
Power factor
-
√
Line voltages (V)
-
√
Frequency (Hz)
-
√
Earth fault current (A)
√
√
Active power (kW)
-
√
Apparent power (kVA)
-
√
Energy (kWh)
-
√
Thermistor resistor (ohm)
-
√
Time to TOL trip
√
√
Time to TOL reset
√
√
Actual startup time
√
√
Motor status
Motor status
√
√
DI status
√
√
Diagnosis
Alarm/trip for each function
√
√
Maintenance
Motor running hours
√
√
Motor stop time
√
√
Number of starts
√
√
Number of trips
√
√
Number of insertion cycles
√
√
Parameter change counter
√
√
Pre trip phase A/B/C current
√
√
Pre trip earth fault current
√
√
SOE
√
—
Table 44 Parameters monitored by M10x
Remark: 1. Current% measured current compares with nominal current. For example, Current% of L1 = I
L1
/ In*100%;
2. Current unbalance measured the maximum difference between current and average current with average
current. The formula is : I
ave
=(I
L1
+I
L2
+I
L3
)/3; Current Unbalance = max I
L1
- I
ave
, I
L2
- I
ave
, I
L3
- I
ave
)/ I
ave
*100%
3. If phase current measured is below 5% of nominal current, 0 amp is displayed.
4. Power factor measurement in M102 is based on phase A (L1). Active power, apparent power, energy, are calculated
based on power factor measurement.
70
M OTO R CO NTRO L A N D PROTE C TI O N U N IT
M10X USER G U I D E
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