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Single-phase module of vacuum switchgear and vacuum switchgear

A vacuum switch and equipment technology, which is applied in the setting of switchgear, electric switch, grounding switch, etc., to achieve the effect of reducing the setting area, miniaturizing the setting area, and improving operability

Inactive Publication Date: 2008-07-30
HITACHI IND EQUIP SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, even if a plurality of opening and closing contacts are accommodated in one vacuum container and miniaturized, since a driving mechanism for driving the opening and closing contacts is necessary for each opening and closing contact, if the vacuum switchgear as a whole From the point of view, there is still room for improvement in order to achieve miniaturization or save space

Method used

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  • Single-phase module of vacuum switchgear and vacuum switchgear
  • Single-phase module of vacuum switchgear and vacuum switchgear
  • Single-phase module of vacuum switchgear and vacuum switchgear

Examples

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Embodiment Construction

[0028] Hereinafter, the present invention will be described based on examples. figure 1 The structure of the three-phase vacuum switchgear 1 formed by arranging three single-phase modules stacked in three layers according to the present invention in parallel and housed in a closed box is shown. figure 1 It is a side sectional view showing the internal structure of the vacuum switchgear 1 in partial section, figure 2 It is a single-line wiring diagram showing the vacuum switchgear 1 .

[0029] like figure 2 As shown, the structure of each phase of the vacuum switchgear 1 of this embodiment has one circuit breaker CB, two load switches LBS, and three earthing switches ES. Furthermore, the present invention is not limited to figure 2 For example, it can also be applied to occasions with multiple circuit breakers CB, or occasions with cut-off switches. figure 2 In the figure, the fixed contacts on the circuit breaker CB and the load switch LBS are respectively connected wi...

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Abstract

The present invention provides a full-vacuum insulated type vacuum switchgear. The invention is intended to reduce an installment area by miniaturizing a vacuum switchgear without damaging workability of assembling and test inspection. By mounting an electromagnetic driving part (8) provided with a driving rod to vertically drive an operation rod by an electromagnetic force and a spring force, onto the upper part of a vacuum open-close part (6) provided with an open-close contact CB housed in a vacuum container (60) and the operation rod to drive that open-close contact, and by modularizing the vacuum switchgear at every single phase, because of realizing reduction of the installment area and downsizing and because of enabling to carry out assembling and the test inspection at every single phase module, workability of assembling and the test or the like is never damaged even in the case of constituting the three-phased vacuum switchgear.

Description

technical field [0001] The invention relates to a vacuum switchgear of full vacuum insulation type, in particular to a technology of saving space and improving assembly performance. Background technique [0002] Vacuum switchgear is a closed switchboard used in the power system, and the vacuum circuit breaker used to cut off the load current or the accident current is housed in the box. In such an enclosed switchboard, in order to ensure the safety of operators during load maintenance and inspection, a disconnector switch, an earthing switch, a system voltage and current detector, a protection relay, and the like are accommodated as necessary. Although there are various insulation methods for vacuum switchgear, for fully vacuum insulation type vacuum switchgear, by accommodating multiple opening and closing contacts such as circuit breakers, cut-off switches, load switches, or grounding switches in the grounded Inside the vacuum container, the vacuum switch section can be r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H33/66H01H33/666
CPCH01H33/6662H01H31/003H01H2033/6668H01H33/666H01H33/022H01H33/027H02B13/0354
Inventor 森田步土层贤治黑木拓弥小林将人
Owner HITACHI IND EQUIP SYST CO LTD