Glossary entry (derived from question below)
English term or phrase:
Off circuit tapping
Polish translation:
przełącznik zaczepów (pracujący) bez obciążenia
English term
Off circuit tapping
Termin odnosi się do transformatorów olejowych.
W specyfikacji technicznej jest punkt o nazwie "Off circuit tapping" i część nazywająca się "Off circuit tap changer". Wiem, że tap changer to przełącznik zaczepów, lecz nie mogę wpaść na fachowe znaczenie "off circuit"
Z góry dziękuję za pomoc.
| 3 | przełącznik zaczepów (pracujący) bez obciążenia |
Frank Szmulowicz, Ph. D.
|
Sep 23, 2016 13:53: Crannmer changed "Level" from "Non-PRO" to "PRO"
PRO (3): M.A.B., Frank Szmulowicz, Ph. D., Crannmer
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Proposed translations
United States
On time, on target, on budget.
Native in: English 
, Polish
Works in: Polish to English, English to Polish, Russian to Polish, and 1 more.
przełącznik zaczepów (pracujący) bez obciążenia
Also called No-Load Tap Changer (NLTC), off-circuit tap changer, Off-Load Tap Changer (OLTC), or De-Energized Tap Changer (DETC)
In low power, low voltage transformers, the tap point can take the form of a connection terminal, requiring a power lead to be disconnected by hand and connected to the new terminal. Alternatively, the process may be assisted by means of a rotary or slider switch.
Since the different tap points are at different voltages, the two connections can not be made simultaneously, as this would short-circuit a number of turns in the winding and produce excessive circulating current. Consequently, the power to the device must be interrupted during the switchover event. Off-circuit or de-energized tap changing (DETC) is sometimes employed in high voltage transformer designs, although for regular use, it is only applicable to installations in which the loss of supply can be tolerated. In power distribution networks, transformers commonly include an off-circuit tap changer on the primary winding to accommodate system variations within a narrow band around the nominal rating. The tap changer will often be set just once, at the time of installation, although it may be changed later during a scheduled outage to accommodate a long-term change in the system voltage profile.
https://en.wikipedia.org/wiki/Tap_changer#Off-circuit_design...
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Przełączniki zaczepów dzielimy na dwa typy: pracujące pod obciążeniem (OLTC) oraz pracujące bez obciążenia (DECT). Przełączniki OLTC pozwalają na wybór przekładni w trakcie pracy transformatora. Oznacza to, że przekładnia transformatora może być zmieniana w czasie przepływu przez niego prądu. Rysunek 1 ilustruje typowy przełącznik zaczepów z wybierakiem odczepów i przerywaczem.
http://www.tomtronix.pl/articles/trafo_test_oltc.aspx
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Note added at 29 mins (2016-09-23 12:30:13 GMT)
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OPCJA:
Bezobciążeniowy Przełącznik Zaczepów (DETC): Gdy Klient wymaga dodatkowego napięciowego przełącznika zaczepów dla stanu bez obciążenia
http://www.sgb-smit.pl/transformatory-mocy/etapy-produkcji-u...
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Discussion
● Pozaobwodowy przełącznik zaczepów. ● Napięcie wtórne może być
precyzyjnie regulowane.
http://www.ormazabal.com/sites/default/files/descargas/ca-10...
Pro - ponieważ wymaga umiejętności pro, aby móc odpowiedzieć.
Oprócz tego, nie ma powodu by zadawać takie pytania jako non-pro - jest to jak najbardziej pro.