Title:
スイッチギヤ
Document Type and Number:
Japanese Patent JP5070178
Kind Code:
B2
Abstract:
A switchgear is provided with interlocks that enhances safety and reliability. On a front face panel, a single line connection diagram, an indicator showing state of ON, OFF and disconnection, another indicator showing a state of an grounding switch, a selection mechanism for selecting manipulation of circuit break, disconnection and grounding, push button switches and for closing and opening a circuit breaker, a manipulation handle insertion hole for disconnecting and a manipulation handle insertion hole for grounding are provided. Depending on positions of a manipulation pin 12 of the selection mechanism , a machine and apparatus to be manipulated is selected. Further, other than the selection of the manipulation the selection mechanism mechanically couples with shutters respectively provided at the manipulation handle insertion hole for disconnecting and the manipulation handle insertion hole for grounding and realizes mechanical interlocks in series of manipulations between circuit break, disconnection and grounding.
Inventors:
Morita Ayumu
Masato Kobayashi
Hirosaki Sotozaki
Yoshizaki Yamazaki
Masato Kobayashi
Hirosaki Sotozaki
Yoshizaki Yamazaki
Application Number:
JP2008264746A
Publication Date:
November 07, 2012
Filing Date:
October 14, 2008
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
H02B1/30; H01H31/06; H01H31/10; H01H33/48; H01H33/52
Domestic Patent References:
| JP2006031943A | ||||
| JP10188745A | ||||
| JP9154208A | ||||
| JP2002374605A |
Attorney, Agent or Firm:
Manabu Inoue
Yuji Toda
Yuji Toda