MICROELETTRICA MC30-BC, Руководство по эксплуатации

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MC30-BC
Doc. N°
MO-0365-ING
Copyright 2008 FW 980.09.01.X Date 15.06.2022 Rev. 1 Pag. 28 of 37
12.3 - Counter (Operation Counters)
The operation of any of the function here below reported, is counted, and recorded in the menu “Counters” .
“ R eal T ime M eas”
“Counter”
“1 st counters
other counters
to go back to “Counter”
Display Description
T> = 0 – 65535 Number of Thermal Image
I> = 0 – 65535 Number of 1 st Overcurrent (time delayed) trip
I>> = 0 – 65535 Number of 2 nd Overcurrent (time delayed) trip
IH = 0 – 65535 Number of 3 rd Overcurrent (time delayed) trip
Io> = 0 – 65535 Number of 1 st time delayed Earth Fault trip
Io>> = 0 – 65535 Number of 2 nd time delayed Earth Fault trip
IoH = 0 – 65535 Number of 3 rd time delayed Earth Fault trip
BF = 0 – 65535 Number of operations of Breaker Failure
BC = 0 – 65535 Number of Broken Conductor
I.R.F. = 0 – 65535 Number of Internal Relay Faults
HR = 0 – 65535 Number of HW recovery operations
12.4 - LastTrip (Event Recording)
The MC records any tripping and stores the information relevant to the last 20 tripping of protection functions
(FIFO).
Each event recording includes the following information.
“Real Time Meas”
“LastTrip”
1 st event,
to scroll available events,
to “Rec #” selected,
to select the different fields;
Display Description
Func xxxxx Indication of the protection function which caused the relay tripping.
For indication of the TRIP Cause the following acronyms are used:
T> = Thermal Image
I> = 1 st Overcurrent (Short Circuit)
I>> = 2 nd Overcurrent (Short Circuit)
IH = 3 rd Overcurrent (Short Circuit)
Io> = 1 st Earth Fault
Io>> = 2 nd Earth Fault
IoH = 3 rd Earth Fault
RTD = External Trip commands
IRF = Internal Relay Fault
Date : YYYY/MM/GG Date: Year/Month/Day
Time : hh:mm:ss:cc Time: hours/minutes/second/hundredths of seconds
IA = 0 – 65535 A RMS value of phase A current (Primary Amps)
IB = 0 – 65535 A RMS value of phase B current (Primary Amps)
IC = 0 – 65535 A RMS value of phase C current (Primary Amps)
Io = 0.0 – 6553.5 A RMS value of residual Current (Primary Amps)
I1 = 0 – 65535 % Direct sequence
I2 = 0 – 65535 % Inverse sequence
Tem = 0 – 65535 %T Actual temperature rise
SR = 0 – 65535 % Inverse sequence / Direct sequence
to go back to “Rec #”,
to go back to “Real Time Meas”.