Page 50 - Sace Emax 2 Catalogue

3/26 SACE EMA X 2 LOW VOLTAGE AIR CIRCUIT-BRE AKERS

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Technical characteristics for protection

trip units

Measurement functions

Instantaneous measurements Displayed with Parameters Precision Standard Ekip Dip
Ekip Multimeter
Currents (RMS) [A] • L1, L2, L3, Ne 1% IEC 61557-12
Earth fault current (RMS) [A] • Ig 2%

Record of values: of the parameter for each interval with time-stamping Parameters Window Intervals
Current: minimum and maximum [A] • I Min, I Max Fixed, synchronizable by remote Duration: 5…120min
Number of intervals: 24

Information on trip and opening data: after a fault with or without auxiliary supply Parameters
Type of protection tripped • eg. L, S, I, G
Fault values per phase [A] • eg. I1, I2, I3, neutral for S protection
Time-stamping • Date, time and progressive number

Maintenance indicators Parameters
Information on last 30 trips • Type of protection, fault values and time-stamping
Information on last 200 events • Type of event, time-stamping
Number of mechanical operations (1) [no] • Can be associated to alarm
Total number of trips [no] •
Total operating time [h] •
Wear of contacts [%] • Prealarm >80%, Alarm = 100%
Date of maintenance operations performed • Last
Indication of maintenance operation needed •
Circuit-breaker I.D. • Type of circuit breaker, assigned device name,
serial number

Self-diagnosis Parameters
Check of continuity of internal connections • Alarm due to disconnection: rating plug, sensors,
trip coil Note:
Failure of circuit breaker to open (ANSI 50BF) • Alarm following non-tripping of protection functions Opening of circuit breaker can be set in the event of alarm
Temperature (T) • Pre-alarm and alarm for abnormal temperature
(1) with auxiliary supply present