ABB Vzduchové jističe EMAX E1-E6 Montážní návody a manuály (03)

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Vydal: ABB s.r.o, ELSYNN Autor: ABB ELSYnn

Strana 443 z 660

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1. If the waveform has deformation beyond the declared limit (6.3 atchdog The PR121/P unit provides some watchdog functions guarantee the proper management relay malfunctions.2. protectionagainst instantaneous short-circuit high currents "Iinst".n°..7. the circuit-breaker does not open immediately the first time the Trip Coil hit (partial failure), TRIP commands are sent repeatedly until the circuit-breaker opens. 12. □ atchdog for proper current sensor connection (CS). For the inverse-time protections, the relationship between trip time and overcurrent given the formula: /I2. protectionagainst earth fault with adjustable delay "G"; 5. -25°C . A timing indication ("alarm" LED) provided the front the unit, which enabled during alarm for each protection; disabled when the alarm condition ceases when the protection has been tripped.5. The unit also has "backup protection" function. +90°C 0% .2. Test bus front test connector. This function can accessed through PR10/T test unit only via test bus and through HMI030 via local bus.5In< I4<0..: 1.5 Protection functions The PR121/P unit provides independent protection functions, i. 12..1.4 unication bus Local bus rear connector; RS485 physical interface, Modbus protocol. N.2.2.e.5xIn current the Ne, the protection considered being set 100%. These functions are follows: □ Rating PLUG validity.7. The characteristics the power pack are given the table below.2 easuring Function A current measuring function (ammeter) available all versions the PR121/P unit. Any anomalies are indicated the LED coming on, explained par. 98% with condensation IP 30 Model L2234 Apparatus Scale L 2778 Doc. □ atchdog for protection against Trip. 12. 12. Ifthe sensors are disconnected there Rating Plug error, when activated, opening command is issued due the being activated.. protection against short-circuit with adjustable delay "S"; 3. +70°C -40°C . 12.B. Any anomalies are indicated the LED coming on, explained par.. C ris tic 121/P Auxiliary voltage (galvanically separated) 24V ±20% Maximum ripple 5% Inrush current 24V ~10A for ms Rated power 24V ~2W 1 iro ris tic s Operating temperature Storage temperature Relative humidity Degree protection (with PR121/P installed the circuit-breaker) 12.The presence the auxiliary power supply enables the relay unit used even with the circuit-breaker open.2. 32/158 . This function can activated through PR010/T test unit.5.: Beyond 15.. For the fixed-time protections with adjustable delay, the relationship adopted follows: k. □ atchdog for proper opening solenoid connection (TC). 2 Page No.1 Calculating the RMS All the protection functions their respective processing the basis the real rms value the currents (the protection disabled for current values greater than 8In [where I4>0,8In], greater than 6In [where 0. protection against overload with inverse time "L"; 2.5.8In] and greater than 4In [where I4<0,5In]. With auxiliary voltage, the protection records historical the maximum current read. 12.3@2In), the tolerance for the calculation the true rms value will increase. protectionagainst instantaneous short-circuit "I"; 4. The PR121/P unit allows the neutral pole's current signal beprocessed using different relationships with the value the phases