Appendix B – INFORMA PMD-A Functions
161
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Resulting Record
DFR
RMS
Envelope
Record
(voltage/current)
Positive
sequence
(voltage/current)
X X X -
- - - -
Unbalance
(voltage/current)
X X X -
- - - -
Signalling voltage X
-
-
-
-
-
-
-
10 seconds
Frequency
X
X
X
-
-
-
-
-
10 minutes
Flicker
X
X
X
-
-
-
-
-
Sensors are programmed to look for various types of PQ thresholds on calculated quantities
and digital input changes, if they are configured as PQ sensors.
INFORMA PMD-A sensors are completely adjustable either on site, or remotely, to meet
user requirements. Prefault, postfault, and Oplimit (operational limit time) logic are fully
adjustable. The user can also inhibit the sensors using software and digital input
configuration.
Oplimit is the maximum time for which DFR is performed after a fault occurs, if the fault
persists for more than the postfault time. This comes into picture if the event trigger (causing
a record to start) lasts beyond the user-specified operational limit.
The device may be configured in order to perform one or more functions.
Sensor Inhibit Using Software Configuration: Each PQ sensor can be individually
enabled/disabled by user configurations.
Sensor Inhibit Using Digital Input Configuration: Each PQ sensor can be inhibited by the
state of single specified digital input.
A total of 80 PQ sensors are available in INFORMA PMD-A.
INFORMA PMD-A provides the following PQ sensor types on which different types of
sensors can be configured.
PQ Sensor Types
Over:
Applied on 200 ms data, 10-second frequency, and 10-minute flicker. If the computed
value of the configured parameters exceeds the “Over_Start -threshold calculated” value,
then the event is triggered. If the computed value of the configured parameter reduces
below the “Over_Stop -threshold calculated” value later, then the event is de-triggered.
Corresponding logs and records are generated.
Under:
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, then the event is triggered. If the computed value of the configured
Содержание INFORMA PMD-A
Страница 1: ...User Manual www qualitrolcorp com INFORMA PMD A Data Acquisition Unit Document ID 40 08557 01...
Страница 7: ...Contents Contents iv www qualitrolcorp com References 240...
Страница 8: ...About This Manual 1 www qualitrolcorp com Chapter 1 About This Manual...
Страница 12: ...Overview 5 www qualitrolcorp com Chapter 2 Overview...
Страница 15: ...Components and Specifications 8 www qualitrolcorp com Chapter 3 Components and Specifications...
Страница 58: ...Installation 51 www qualitrolcorp com Chapter 4 Installation...
Страница 64: ...Serial Connection to Informa PMD A 57 www qualitrolcorp com Chapter 5 Serial Connection to INFORMA PMD A...
Страница 86: ...Configuration 79 www qualitrolcorp com Chapter 6 Configuration...
Страница 108: ...Configuration 101 www qualitrolcorp com Figure 6 22 PQ Free Interval Continuous Recording...
Страница 120: ...Maintenance 113 www qualitrolcorp com Chapter 7 Maintenance...
Страница 126: ...Maintenance 119 www qualitrolcorp com Figure 7 7 Voltage Calibration...
Страница 147: ...Appendix A Technical Specifications 140 www qualitrolcorp com Appendix A Technical Specifications...
Страница 156: ...Appendix B INFORMA PMD A Functions 149 www qualitrolcorp com Appendix B INFORMA PMD A Functions...
Страница 166: ...Appendix B INFORMA PMD A Functions 159 www qualitrolcorp com Figure B 9 RMS Envelope PQRVC...
Страница 199: ...Appendix D License Information 192 www qualitrolcorp com Appendix D License Information...
Страница 204: ...Appendix E Battery Replacement Procedure 197 www qualitrolcorp com Appendix E Battery Replacement Procedure...
Страница 212: ...Appendix G On Board Jumper Settings 205 www qualitrolcorp com Appendix G On Board Jumper Settings...
Страница 246: ...References 239 www qualitrolcorp com References...