PRESELECTOR OF A VOLTAGE STEPPING REGULATION SELECTOR

This pre-selector is use in power transformers that are regulated under load. It has an improved operative safety, reduced consumption of material and labour, and easier production and exploitation. The pre-selector contains an insulation column - located between a top and bottom bearing plate - on...

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Bibliographic Details
Main Authors TODOROV, IVAN V, SKRINSKI, VENTSISLAV V, GEORGIEV, GEORGI J, GROZDANOV, TONI D, BLAZHEV, DIMITAR T
Format Patent
LanguageEnglish
Published 15.09.1992
Edition5
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:This pre-selector is use in power transformers that are regulated under load. It has an improved operative safety, reduced consumption of material and labour, and easier production and exploitation. The pre-selector contains an insulation column - located between a top and bottom bearing plate - on which static contacting elements and a G-shaped contacting element, located in the last one, are fastened. Insulating bearers, with static contacting elements located on them, are attached to the insulating column (IC). The IC is unified with the insulating columns of the selector and two short insulating bearers are laterally fastened to it (when the pre-selector is used as a turner), or two long insulating bearers (when it comes to a rough step). The IC may consist of two insulation racks, connected to each other with a profile bracket. When the pre-selector is used as a turner, the static contacting elements are located on the lateral surfaces of the insulating racks.
Bibliography:Application Number: BG19900092284