ON-LOAD TAP CHANGING DEVICE AND ON-LOAD TAP CHANGING SYSTEM

An on-load tap changing apparatus which suppresses an arc at the time of switching, reduces deterioration of a switching unit, and has an excellent durability is provided. This on-load tap changing apparatus includes a first switching unit 2 connected to a first tap 91 of a transformer 9 provided in...

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Bibliographic Details
Main Authors MIYAMOTO, Yasushi, TAKANO, Kei, EGUCHI, Naoki, CHIGIRI, Takeshi
Format Patent
LanguageEnglish
French
German
Published 03.06.2020
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
INDUCTANCES
MAGNETS
RELAYS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
SELECTORS
TRANSFORMERS
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Summary:An on-load tap changing apparatus which suppresses an arc at the time of switching, reduces deterioration of a switching unit, and has an excellent durability is provided. This on-load tap changing apparatus includes a first switching unit 2 connected to a first tap 91 of a transformer 9 provided in a power system and switching power supplied from the first tap 91, a first impedance changing unit 5 connected in series with the first switching unit 2 and increasing an impedance when the first switching unit 2 executes a switching operation, a second switching unit 3 connected to a second tap 92 of the transformer 9 and switching power supplied from the second tap 92, and a second impedance changing unit 6 connected in series with the second switching unit 3 and increasing an impedance when the second switching unit 3 executes a switching operation.
Bibliography:Application Number: EP20160919541