Chapter 6. Description of Operation of Protection Subsystem
M7IRDA2003I
7IRD-A/J/M: Distribution Protection & Control Terminal
© ZIV APLICACIONES Y TECNOLOGÍA, S.L.U. 2020
6-32
6.12
Fault Reports
The terminal incorporates Fault Reports where the most relevant fault information is stored.
Access to this information is available through the communication ports. The information stored
in each fault report is listed below:
Via Communications
Fault Initiation Time Tag
. Corresponds with the time when the first element involved in the
fault picked up. Also included:
-
Pre-fault currents
. The 3-phase and ground current values, two cycles before the fault
started.
-
Pickup Units
(according to model) for Full Fault Duration.
Trip Order Tag
corresponds the date and time of the trip order. Also included:
-
The 3-phase and ground
Current
values, 2’5 cycles after unit pickup.
-
Tripped Units
(according to model).
Fault End Time Tag
corresponds at the moment (date and time) when the last element
involved in the fault resets. Also included:
-
Open Current by the Breaker
: it’s the maximum registered phase current between the
moment of the trip command and the fault end time (by breaker opening or by opening
order failure).
Each Fault Report specified the active group at the trip moment.
By HMI
All of the above information is stored in memory and available through both communications
ports; however, only the following data is accessible for each fault report from the terminal unit
display:
-
Fault Initiation Time Tag
. Corresponds with the time when the first element involved in
the fault picked up.
-
Trip Order Time Tag
.
-
Fault End Time Tag
. Corresponds to the time when the last element involved in the
fault resets.
-
Generating Element of Trip
and
Elements Picked Up
for full fault duration.
Chapter 8 offers the related information to consult the fault report using the
HMI
. If the IED
provide
Oscillographic Register
, the
Fault Report
can’t be effectuated by
HMI
.
Содержание 7IRD-A
Страница 2: ......
Страница 164: ......
Страница 165: ......
Страница 166: ......
Страница 167: ......
Страница 168: ......
Страница 169: ......
Страница 170: ......
Страница 171: ......
Страница 172: ......
Страница 173: ......
Страница 174: ......
Страница 175: ...D List of Illustrations and Tables...