MiCOM P921/P922/P923 - Schneider - error

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P92x/EN TD/H42Page 28/42Technical GuideTechnical DataMiCOM P921/P922/P9237. MEASUREMENT AND RECORDS7.1 SettingsThe measured values are displayed on the LCD of the relay ; they are true RMSvalues (up to the 10 th harmonic) and are primary values.They can also be read through the communication ports (RS232 or RS485).7.2 Event RecordsCapacityTime-tagTriggers250 events1 millisecondAny selected protection alarm and thresholdLogic input change of stateSetting changesSelf test events7.3 Fault RecordsCapacityTime-tagTriggersData25 faults1 millisecondAny selected protection alarm and thresholdFault dateProtection thresholdsSetting GroupAC inputs measurements (RMS)Fault measurements7.4 Instantaneous recorderCapacityTime-tagTriggersData5 starting informations (instantaneous)1 millisecondAny selected protection alarm and thresholddate, hourorigin (any protection alarm)length (duration of the instantaneous trip yes or no
Technical GuideP92x/EN TD/H42Technical DataMiCOM P921/P922/P923 Page 29/427.5 Disturbance record (P922 and P923)The MiCOM P922-P923 is able to store up to 5 records:Disturbance RecordsTriggersDataAny selected protection alarm and threshold, logic input,remote commandAC input channelsdigital input and output statesfrequency valueDefault valueSetting rangeMin Max StepRecords number 5 1 5 1Pre-Time 0.1s 0.1 2.9 / 4.9 /6.9 or 8.9Disturb rec Trig ON TRIP ON TRIP or ON INST.TriggerAny selected protection alarm and thresholdLogic inputRemote command7.6 Frequency disturbance record (P923 only)The MiCOM P923 is able to store one record of 20s.Setting Range Step SizePre – time 5s fixedPost – time 15s fixedSample rate 1 sample/cycle fixedDigital signalsTrigger logic0.1Logic inputs and output contacts status- Instantaneous or time delayed tripping,- Dedicated logic input,- Logic equation,- Remote command.
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MiCOMP921/P922/P923Voltage and Freq
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MiCOM P921/P922/P923 - Schneider - error

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