SACE EMAX 2 NEW LOW VOLTAGE POWER C I RCUI T BRE AKERS TO ANS I C37 / UL 1066 / CSA STANDARDS
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— Technical characteristics for protection trip units Measurement functions
Record of values: of the parameter for each interval with time-stamping
Parameters I Min, I Max U Min, U max P Avg, P Max Q Avg, Q Max S Avg, S Max
Current: minimum and maximum
[A] [V]
Phase-phase voltage: minimum and maximum Active power: average and maximum Reactive power: average and maximum
[kW]
[kVAR]
Apparent power: average and maximum
[KVA]
Data logger: record of high sampling rate parameters
Parameters
Currents Voltages
[A] [V]
L1, L2, L3, Ne, Ig
U12, U23, U31
Sampling rate
[Hz]
1200-2400-4800-9600
Maximum recording duration
[s] [s]
13.6
Recording stop delay Number of registers
0-10s
[no]
2 independent
Information on trip and opening data: after a fault without auxiliary supply
Parameters
Type of protection tripped
eg. L, S, I, G, UV, OV
Fault values per phase
[A/V/Hz W/var]
eg. I1, I2, I3, neutral for S protection V12, V23, V32 for UV protection Date, time and progressive number
Time-stamping
Maintenance indicators Information on last 30 trips Information on last 200 events Number of mechanical operations (1)
Parameters
Type of protection, fault values and time-stamping
Type of event, time-stamping Can be associated to alarm
[no] [no]
Total number of trips Total operating time
[h]
Wear of contacts
[%]
Prealarm >80% Alarm = 100%
Date of maintenance operations performed Indication of maintenance operation needed Circuit-breaker I.D.
Last
Type of circuit breaker, assigned device name, serial number
Self-diagnosis
Parameters
Check of continuity of internal connections Failure of circuit breaker to open (ANSI 50BF)
Alarm due to disconnection: rating plug, sensors, trip coil Alarm following non-tripping of protection functions
Temperature (OT)
Prealarm and alarm for abnormal temperature
(1) with auxiliary supply present
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