Qualitrol INFORMA PMD-A, Руководство пользователя

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Appendix B – INFORMA PMD-A Functions
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parameter exceeds the “Under_Stop -threshold calculated” value later, then the event is de-
triggered. Corresponding logs and records are generated.
Both: Applied on 200 ms data, 10-second frequency, and 10-minute flicker. If the computed
value of the configured parameters reduces below the “Under_Start -threshold calculated”
value
OR exceeds the “Over_Start -threshold calculated” value, then the event is triggered.
If the computed value of the configured parameter exceeds the “Under_Stop -threshold
calculated” value
OR reduces below the “Over_Stop -threshold calculated” value later, then
the event is de-triggered. Retriggering happens if the parameter value swings between
Under to Over and vice-versa. Corresponding logs and records are generated.
UA-Under: Applied on U
rms
(1/2)
data. If the U
rms
(1/2)
value reduces below the “UA_Under
Start threshold calculated” value, then the event is triggered. If the RMS value exceeds the
“UA_Under Stop -threshold calculated” value later, then the event is de-triggered.
Corresponding logs and records are generated.
UA-Over: Applied on U
rms
(1/2)
data. If the U
rms
(1/2)
value exceeds the “UA_Over Start
threshold calculated” value, then the event is triggered. If the RMS value reduces below the
“UA_Over Stop -threshold calculated” value later, then the event is de-triggered.
Corresponding logs and records are generated.
UA-Both: Applied on U
rms
(1/2)
data. If the U
rms
(1/2)
value exceeds the “UA_Over Start
threshold calculated” value OR reduces below the “UA_Under Start threshold calculated”
value, then the event is triggered. If the RMS value reduces below the “UA_Over Stop -
threshold calculated” value OR exceeds the “UA_Under Stop -threshold calculated” value
later, then the event is de-triggered. Retriggering happens if the parameter value swings
between Under to Over and vice-versa. Corresponding logs and records are generated.
DSI: Applied on U
rms
(1/2)
data. If the U
rms
(1/2)
value exceeds the “Start limits” of either Dip or
Swell or Interruption, then the event is triggered. It is retriggered if the RMS value swings
between any of the three limits. De-triggering happens if the RMS value is in normal limits.
Corresponding logs and records are generated.
RVC: Applied on U
rms
(1/2)
data. If the rate of change of the U
rms
(1/2)
value exceeds the limit
decided by threshold, a sensor is triggered. It remains de-triggered in normal conditions.
Corresponding logs and records are generated.
Only sensors of the DSI or RVC types can initiate an RMS Envelope Recording.
These are special function sensors and may be applied to voltage channels only.
For each busbar, any of the following are allowed:
• A maximum of 3 sensors of the DSI type
•
A maximum of 3 sensors of the RVC type
If the "Connection/Cable-type" is set to Aron, only two voltage channels are
available; consequently 2 sensors each, of the DSI and RVC types, are available
for each of the busbar.