GB2558002A - Switchgear housing - Google Patents

Switchgear housing Download PDF

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Publication number
GB2558002A
GB2558002A GB1621917.2A GB201621917A GB2558002A GB 2558002 A GB2558002 A GB 2558002A GB 201621917 A GB201621917 A GB 201621917A GB 2558002 A GB2558002 A GB 2558002A
Authority
GB
United Kingdom
Prior art keywords
switchgear housing
access opening
switchgear
frame
arc
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB1621917.2A
Other versions
GB201621917D0 (en
Inventor
Pieter Ophof Richard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Danfoss Power Solutions II BV
Original Assignee
Eaton Industries Netherlands BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eaton Industries Netherlands BV filed Critical Eaton Industries Netherlands BV
Priority to GB1621917.2A priority Critical patent/GB2558002A/en
Publication of GB201621917D0 publication Critical patent/GB201621917D0/en
Publication of GB2558002A publication Critical patent/GB2558002A/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/025—Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • H02B13/065—Means for detecting or reacting to mechanical or electrical defects
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Patch Boards (AREA)

Abstract

A switchgear housing 10 for housing electrical components, which switchgear housing comprises a parallelepiped shaped frame; a peripheral wall 13 arranged on the frame providing at least one side of the frame with an access opening 14 and an arc mitigation module 1 removably mounted in the access opening, wherein the arc mitigation module comprises at least three parallel sheets 2 of metal or plastic for providing separation walls between at least two terminals 16 of an electrical component mounted in the switchgear housing, wherein the at least three parallel sheets extend perpendicularly from the side with the access opening.

Description

(71) Applicant(s):
Eaton Industries (Netherlands) B.V.
Europalaan 202, Hengelo 7559 SC, Netherlands (72) Inventor(s):
Richard Pieter Ophof (56) Documents Cited:
EP 2362506 A2 US 4689716 A
WO 2006/048382 A1 (58) Field of Search: INT CL H02B
Other: Online: WPI, EPODOC (74) Agent and/or Address for Service:
Eaton Industries Holding GmbH
Airport Center Schonefeld, Mittelstrasse 5-5a,
Schonefeld 12529, Germany (54) Title of the Invention: Switchgear housing Abstract Title: Switchgear housing (57) A switchgear housing 10 for housing electrical components, which switchgear housing comprises a parallelepiped shaped frame; a peripheral wall 13 arranged on the frame providing at least one side of the frame with an access opening 14 and an arc mitigation module 1 removably mounted in the access opening, wherein the arc mitigation module comprises at least three parallel sheets 2 of metal or plastic for providing separation walls between at least two terminals 16 of an electrical component mounted in the switchgear housing, wherein the at least three parallel sheets extend perpendicularly from the side with the access opening.
Figure GB2558002A_D0001
1/2
Figure GB2558002A_D0002
2/2
Figure GB2558002A_D0003
(
Switchgear housing
The invention relates to a switchgear housing for housing electrical components, which switchgear housing comprises:
- a parallelepiped shaped frame;
- a peripheral wall arranged on the frame providing at least one side of the frame with an access opening.
Such a switchgear housing is for example known from EP 2273634. This switchgear housing is provided with electrical components, which have terminals extending into a cable connection space. Here, the terminals of the electrical components are connected to electrical cables. Arc stabilizers are arranged between each pair of terminals with cables. These arc stabilizers are U-shaped profiles, which are fixed in the housing between each pair of terminals.
The arc stabilizers prevent created arcs to travel freely through the switchgear housing. The stabilizers stop the arcs in their path from a terminal or cable to a next adjacent terminal or cable.
In case the switchgear housing and the electrical components therein need to be serviced, the cables often need to be disconnected. However, the arc stabilizers limit the space around the cables to disconnect these cables. Therefore, such arc stabilizers typically need to be disassembled before any servicing can be done.
Also with the manufacturing and installation of the switchgear housing, the arc stabilizers of this prior art housing needs to be installed one by one after the cables have been connected to the terminals. If the arc stabilizers are not installed correctly, the chance on a malfunction within the switchgear housing can increase substantially.
Accordingly, it is an object of the invention to reduce or even remove the above mentioned disadvantages.
This object is achieved according to the invention with a switchgear housing according to the preamble, which is characterized by an arc mitigation module removably mounted in the access opening, wherein the arc mitigation module comprises at least three parallel sheets of metal or plastic for providing separation walls between at least two terminals of an electrical component mounted in the switchgear housing, wherein the at least three parallel sheets extend perpendicular from the side with the access opening.
With the switchgear housing according to the invention, the arc 5 mitigation module can be removed as a whole. So, in contrast to the prior art, only minor mounting means need to be disengaged to pull out the arc mitigation module, leaving as much space available around the terminals as possible.
The arc mitigation module can also be easily inserted back into the housing, and the parallel sheets of metal or plastic will ensure that each and every terminal with connected cable is sufficiently shielded from arcing of the other terminals.
In a preferred embodiment of the switchgear housing according to the invention the arc mitigation module comprises a front panel to which the at least three parallel sheets are arranged perpendicular and wherein the front panel is removably mounted to the frame in the access opening.
The front panel provides a cover for the terminals and connected cables and thus provides for increased safety. Furthermore, the front panel allows for easy mounting to the frame because the parallel sheets are arranged to the front panel.
In yet another embodiment of the switchgear housing according to the invention the arc mitigation module further comprises a bottom wall perpendicular arranged to both the front panel and the at least three parallel sheets, wherein the bottom wall is provided with slots open at the end distal from the front panel.
The bottom wall provides further stiffness to the arc mitigation module. The slots are provided, such that the module can be removed from the switchgear housing and be inserted into the switchgear housing, while the cables remain connected to the terminals.
In yet another embodiment of the switchgear according to the invention the front panel is provided with ventilation openings.
As typically high currents run through the electrical components in the switchgear, a sufficient ventilation is required in order to prevent too high temperatures in the housing. With ventilation openings provided in the front panel of the housing, the obstruction of the arc mitigation module is reduced as much as possible.
In yet another embodiment ofthe switchgear according to the invention, the arc mitigation module comprises mounting means, which mounting means engage on the frame for removably mounting the arc mitigation module in the access opening.
The invention also relates to a combination of a switchgear housing according to the invention, at least one electrical component mounted in the parallelepiped shaped frame, which electrical component has at least two terminals extending between the at least three parallel sheets and electrical cables arranged to the at least two terminals.
These and other features of the invention will be elucidated in conjunction with the accompanying drawings.
Figure 1 shows a perspective view of an arc mitigation module for a switchgear housing according to the invention.
Figure 2 shows an embodiment of a switchgear housing according to the 15 invention with an arc mitigation module according to figure 1 in a first position.
Figure 3 shows the housing of figure 2 with the arc mitigation module in a second position.
Figure 1 shows an arc mitigation module 1 with five parallel metal sheets 2, which are perpendicular arranged to a front panel 3 and a bottom wall 4.
The front panel 3 is provided with ventilation openings 5, while the bottom wall 4 is provided with slots 6 opening away from the front panel 3.
Figure 2 shows a switchgear housing 10 with a parallelepiped shaped frame out of vertical profiles 11 and horizontal struts 12. The sides of the frame 11,12 are covered by a peripheral wall 13, while the front provides an access opening 14.
Electronic components 15 are arranged in the frame 11,12. The electronic components 15 have terminals 16 extending downward inside of the housing
10. Electric cables 17 are connected to these terminals 16.
In figure 2 the arc mitigation module 1 is shown in disassembled state, such that the parallel sheet 2 are not positioned between the terminals 16 and the electrical cables 17. In this position, the switchgear housing 10 can easily be maintained.
Figure 3 shows the switchgear housing 10 with the arc mitigation module in assembled state. The sheets 2 are positioned between the terminals 16 and electrical cables 17 to prevents generated arcs from traveling through the housing 10 and causing substantial damage.
The ventilation openings 5 as well as the slots 6 in the bottom wall 4 of 5 the arc mitigation module 1 allow for sufficient air flow to cool the electrical components 15 in the housing 10.

Claims (6)

Claims
1. Switchgear housing for housing electrical components, which switchgear housing comprises:
5 - a parallelepiped shaped frame;
- a peripheral wall arranged on the frame providing at least one side of the frame with an access opening;
characterized by
- an arc mitigation module removably mounted in the access opening,
10 wherein the arc mitigation module comprises at least three parallel sheets of metal or plastic for providing separation walls between at least two terminals of an electrical component mounted in the switchgear housing, wherein the at least three parallel sheets extend perpendicular from the side with the access opening.
2. Switchgear housing according to claim 1, wherein the arc mitigation 15 module comprises a front panel to which the at least three parallel sheets are arranged perpendicular and wherein the front panel is removably mounted to the frame in the access opening.
3. Switchgear housing according to claim 2, wherein the arc mitigation module further comprises a bottom wall perpendicular arranged to both the front panel
20 and the at least three parallel sheets, wherein the bottom wall is provided with slots open at the end distal from the front panel.
4. Switchgear housing according to claim 2 or 3, wherein the front panel is provided with ventilation openings.
5. Switchgear according to any of the preceding claims, wherein the arc 25 mitigation module comprises mounting means, which mounting means engage on the frame for removably mounting the arc mitigation module in the access opening.
6. Combination of a switchgear housing according to any of the preceding claims, at least one electrical component mounted in the parallelepiped shaped frame, which electrical component has at least two terminals extending between the at least
30 three parallel sheets and electrical cables arranged to the at least two terminals.
Intellectual
Property
Office
GB1621917.2A 2016-12-21 2016-12-21 Switchgear housing Withdrawn GB2558002A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1621917.2A GB2558002A (en) 2016-12-21 2016-12-21 Switchgear housing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1621917.2A GB2558002A (en) 2016-12-21 2016-12-21 Switchgear housing

Publications (2)

Publication Number Publication Date
GB201621917D0 GB201621917D0 (en) 2017-02-08
GB2558002A true GB2558002A (en) 2018-07-04

Family

ID=58360654

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1621917.2A Withdrawn GB2558002A (en) 2016-12-21 2016-12-21 Switchgear housing

Country Status (1)

Country Link
GB (1) GB2558002A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4689716A (en) * 1986-07-03 1987-08-25 Electrical Equipment, Inc. Modular barrier assembly
WO2006048382A1 (en) * 2004-11-02 2006-05-11 Siemens Aktiengesellschaft Switching system comprising an unlocking arc limitation system
EP2362506A2 (en) * 2010-02-23 2011-08-31 Ormazabal Anlagentechnik GmbH Electric arc limiting device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4689716A (en) * 1986-07-03 1987-08-25 Electrical Equipment, Inc. Modular barrier assembly
WO2006048382A1 (en) * 2004-11-02 2006-05-11 Siemens Aktiengesellschaft Switching system comprising an unlocking arc limitation system
EP2362506A2 (en) * 2010-02-23 2011-08-31 Ormazabal Anlagentechnik GmbH Electric arc limiting device

Also Published As

Publication number Publication date
GB201621917D0 (en) 2017-02-08

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