Glossary entry (derived from question below)
Polish term or phrase:
zbaezpieczenia nadprądowe zwłoczne
English translation:
time-delay overcurrent protection elements
Added to glossary by
Frank Szmulowicz, Ph. D.
Oct 4, 2016 14:33
7 yrs ago
5 viewers *
Polish term
zbaezpieczenia nadprądowe zwłoczne
Polish to English
Tech/Engineering
Automation & Robotics
"Warto wspomnieć o zabezpieczeniach nadprądowych zwłocznych (delay relays) i bezzwłocznych . Jednym z przekaźników w wykorzystywanym do tego celu jest przekaźnik nadprądowo zwłoczny niezależny RIT. Zwłoka czasowa zapewnia selektywność działania.
W przypadku przekaźników nadprądowych bezzwłocznych, reagują one bezzwłocznie na zwiększenie wartości prądu."
Wstępnie dałem "delay relays" (chodziło mi o kontekst), ale pewności nie mam
W przypadku przekaźników nadprądowych bezzwłocznych, reagują one bezzwłocznie na zwiększenie wartości prądu."
Wstępnie dałem "delay relays" (chodziło mi o kontekst), ale pewności nie mam
Proposed translations
(English)
3 | time-delay overcurrent protection elements | Frank Szmulowicz, Ph. D. |
Change log
Oct 23, 2016 19:32: Frank Szmulowicz, Ph. D. Created KOG entry
Proposed translations
15 mins
Selected
time-delay overcurrent protection elements
Reszta to independent, definite-time delay overcurrent relay.
cccccccccccccccccccccccccc
INDEPENDENT (DEFINITE) TIME
OVERCURRENT RELAYS
Each protection unit comprises a definite-time delay overcurrent relay in which the operation of the current sensitive element simply initiates the time delay
Overcurrent relays are normally also provided with
elements having independent or definite time
characteristics. These characteristics provide a ready
means of co-ordinating several relays in series in
situations in which the system fault current varies very
widely due to changes in source impedance, as there is
no change in time with the variation of fault current
http://www.fecime.org/referencias/npag/chap9-122-151.pdf
ccccccccccccccccccccccccccccccccccccccccccccccccccccccc
This model (Figure 1) represents the operation of >definite time overcurrent relay</b after a fault occurred at the transmission line.
http://www.simulink-simpowersystems-examples.com/2015/03/Def...
ccccccccccccccccccccccc
This would have a time/current characteristic as in Figure Lib The addition of a timing device results in a definite time-delay overcurrent relay.
https://books.google.com/books?id=HMLBEXay1DUC&pg=PA127&lpg=...
--------------------------------------------------
Note added at 17 mins (2016-10-04 14:51:14 GMT)
--------------------------------------------------
cccccccccccccccccc
Definite Time Overcurrent Relays
In this type, two conditions must be satisfied for operation (tripping), current must exceed the setting value and the fault must be continuous at least a time equal to time setting of the relay.
vs. Instantaneous Overcurrent relay (Define Current)
Definite current relay operate instantaneously when the current reaches a predetermined value.
http://electrical-engineering-portal.com/types-and-applicati...
cccccccccccccccccccccccccc
INDEPENDENT (DEFINITE) TIME
OVERCURRENT RELAYS
Each protection unit comprises a definite-time delay overcurrent relay in which the operation of the current sensitive element simply initiates the time delay
Overcurrent relays are normally also provided with
elements having independent or definite time
characteristics. These characteristics provide a ready
means of co-ordinating several relays in series in
situations in which the system fault current varies very
widely due to changes in source impedance, as there is
no change in time with the variation of fault current
http://www.fecime.org/referencias/npag/chap9-122-151.pdf
ccccccccccccccccccccccccccccccccccccccccccccccccccccccc
This model (Figure 1) represents the operation of >definite time overcurrent relay</b after a fault occurred at the transmission line.
http://www.simulink-simpowersystems-examples.com/2015/03/Def...
ccccccccccccccccccccccc
This would have a time/current characteristic as in Figure Lib The addition of a timing device results in a definite time-delay overcurrent relay.
https://books.google.com/books?id=HMLBEXay1DUC&pg=PA127&lpg=...
--------------------------------------------------
Note added at 17 mins (2016-10-04 14:51:14 GMT)
--------------------------------------------------
cccccccccccccccccc
Definite Time Overcurrent Relays
In this type, two conditions must be satisfied for operation (tripping), current must exceed the setting value and the fault must be continuous at least a time equal to time setting of the relay.
vs. Instantaneous Overcurrent relay (Define Current)
Definite current relay operate instantaneously when the current reaches a predetermined value.
http://electrical-engineering-portal.com/types-and-applicati...
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