2 Functions
339
SIPROTEC 4, 7SJ62/63/64 Handbuch
C53000-G1140-C147-A, Edition 07.2015
2.23.7 Set Points for Measured Values
SIPROTEC devices allow limit values (set points) to be set for some measured and
metered values. If, during operation, a value reaches one of these limit values, the
device generates an alarm which is indicated as an operational message. This can be
configured to LEDs and/or binary outputs, transferred via the ports and interconnected
in DIGSI CFC. In addition you can use DIGSI CFC to configure limit values for further
measured and metered values and allocate these via the DIGSI device matrix. In con-
trast to the actual protection functions the limit value monitoring function operates in
the background; therefore it may not pick up if measured values are changed sponta-
neously in the event of a fault and if protection functions are picked up. Furthermore,
since a message is only issued when the limit value is repeatedly exceeded, the limit
value monitoring functions do not react as fast as protection functions trip signals.
Applications
• This monitoring program works with multiple measurement repetitions and lower
priority than the protection functions. For that reason, in the event of a fault it may
not respond to fast measured value changes before protection functions are started
and tripped. This monitoring program is not suitable for blocking protection func-
tions.
2.23.7.1 Description
Limit Value Moni-
toring
Ex works, the following individual limit value levels are configured:
•
I
Admd>: Exceeding a preset maximum average value in Phase A.
•
I
Bdmd>: Exceeding a preset maximum average value in Phase B.
•
I
Cdmd>: Exceeding a preset maximum average value in Phase C.
•
I
1dmd>: Exceeding a preset maximum average positive sequence current.
• |Pdmd|> : Exceeding a preset maximum average active power.
• |Qdmd|>: Exceeding a preset maximum average reactive power.
• Sdmd>: Exceeding a preset maximum average value of reactive power.
• Temp>: Exceeding a preset temperature (if measuring transducer available).
• Pressure<: Exceeding a preset pressure (if measuring transducer available).
•
I
L<: Falling below a preset current in any phase.
• |cos
ϕ
|<: Falling below a preset power factor.
Содержание siprotec SJ62
Страница 3: ...3 SIPROTEC 4 7SJ62 63 64 Handbuch C53000 G1140 C147 A Edition 07 2015 ...
Страница 9: ...Preface 9 SIPROTEC 4 7SJ62 63 64 Handbuch C53000 G1140 C147 A Edition 07 2015 ...
Страница 21: ...Contents 19 SIPROTEC 4 7SJ62 63 64 Handbuch C53000 G1140 C147 A Edition 07 2015 ...
Страница 35: ...1 Introduction 33 SIPROTEC 4 7SJ62 63 64 Handbuch C53000 G1140 C147 A Edition 07 2015 ...
Страница 365: ...2 Functions 363 SIPROTEC 4 7SJ62 63 64 Handbuch C53000 G1140 C147 A Edition 07 2015 ...
Страница 443: ...3 Mounting and Commissioning 441 SIPROTEC 4 7SJ62 63 64 Handbuch C53000 G1140 C147 A Edition 07 2015 ...
Страница 529: ...4 Technical Data 527 SIPROTEC 4 7SJ62 63 64 Handbuch C53000 G1140 C147 A Edition 07 2015 ...
Страница 699: ...A Appendix 697 SIPROTEC 4 7SJ62 63 64 Handbuch C53000 G1140 C147 A Edition 07 2015 ...
Страница 701: ...Literature 699 SIPROTEC 4 7SJ62 63 64 Handbuch C53000 G1140 C147 A Edition 07 2015 ...
Страница 714: ...Index 712 SIPROTEC 4 7SJ62 63 64 Handbuch C53000 G1140 C147 A Edition 07 2015 ...
Страница 715: ...Index 713 SIPROTEC 4 7SJ62 63 64 Handbuch C53000 G1140 C147 A Edition 07 2015 ...