Title:
【発明の名称】電磁開閉器
Document Type and Number:
Japanese Patent JP2002544750
Kind Code:
A
Abstract:
Disclosed is an electromagnetic switch device for star-delta connections including a body, three power terminals respectively connected to three-phase power lines at one side of the body, three main starting terminals respectively connected to one-side terminals of a three-phase electric motor at the other side of the body, three star-delta terminals respectively connected to the other-side ends of the three-phase electric motor at the other side of the body, an electromagnet for a main circuit and an electromagnet for star-delta connections disposed at a lower portion of the body in such a fashion that they are laterally aligned with each other, each of the electromagnets including a fixed core and a coil wound around the fixed core, a main circuit switching unit serving to selectively connect each of the main starting terminals to an associated one of the power terminals in accordance with a magnetization of the main circuit-end electromagnet, and a star-delta connection switching unit serving to selectively connect the star-delta terminals to one another or to the main starting terminals, respectively, in accordance with a magnetization of the star-delta connection-end electromagnet.
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Inventors:
Park, Young, Seo
Application Number:
JP2000617468A
Publication Date:
December 24, 2002
Filing Date:
January 20, 2000
Export Citation:
Assignee:
Intervention CEO, Eltidi.
International Classes:
H01H50/00; H01H50/14; H01H50/54; H01H51/00; H02P1/32; H01H50/04; (IPC1-7): H02P1/32; H01H50/04; H01H50/14; H01H50/54
Attorney, Agent or Firm:
Keiichi Ota