GB2301229A - Housing for motor controller with slidable, insulated doors - Google Patents

Housing for motor controller with slidable, insulated doors Download PDF

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Publication number
GB2301229A
GB2301229A GB9510380A GB9510380A GB2301229A GB 2301229 A GB2301229 A GB 2301229A GB 9510380 A GB9510380 A GB 9510380A GB 9510380 A GB9510380 A GB 9510380A GB 2301229 A GB2301229 A GB 2301229A
Authority
GB
United Kingdom
Prior art keywords
motor controller
controller unit
panel
phase
door
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.)
Granted
Application number
GB9510380A
Other versions
GB2301229B (en
GB9510380D0 (en
Inventor
Edgar Yee
Thomas Bienvenido Reyes
Kevin F Nolan
Lloyd E Wentler
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Priority to GB9510380A priority Critical patent/GB2301229B/en
Publication of GB9510380D0 publication Critical patent/GB9510380D0/en
Publication of GB2301229A publication Critical patent/GB2301229A/en
Application granted granted Critical
Publication of GB2301229B publication Critical patent/GB2301229B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
    • H02B1/306—Accessories, e.g. windows
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
    • H02B1/21—Bus-bar arrangements for rack-mounted devices with withdrawable units
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
    • H02B1/38—Hinged covers or doors

Landscapes

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

Abstract

A motor control center of the type including a short circuit protective device such as a circuit breaker or fusible disconnect and a motor starter for interacting with an electric motor includes a wiring access cabinet at the top of the control center. The multi-phase conductors (6,7,8) within the access cabinet are protected by means of a pair of slidably-arranged access doors (3,4). The doors are arranged in a different position along the front of the access cabinet to access each of the individual phase conductors, and are made of electrically non-conductive material.

Description

MOTOR CONTROL CENTER A non-conductive sliding panel is used as a protective barrier to isolate the horizontal bus in the motor-control center product line. The sliding panel isolates the horizontal bus in the motor control center to increase safety during inspection of the electrical joints and improve both access and safety during maintenance.
The existing sliding panel is composed of 13 parts.
These 13 sliding panel parts are in close proximity to main electrical bus and include conductive components. Special insulative barriers are incorporated to improve safety during inspection and maintenance. The existing sliding panel design for Motor Control Center is similar to that which is described in US Patent No. 3628098 entitled "CABINET FOR ELECTRICAL CONTROLS WITH ENCLOSED DOORS" which describes the separate arrangement of the high voltage contactors and low voltage equipment. One purpose of the invention is to provide means of improving safety while reducing the number of parts. Accordingly, the nonconductive three piece sliding panel eliminates the need for a special insulative barrier and reduce the number of parts while providing improved access for inspection and maintenance.
Figure 1 shows the placement of the non-conductive sliding panel within the existing motor control center as described in the aforementioned US Patent No. 3628098. The three-piece sliding panel assembly, item 1, is positioned inside the motor control center in the upper portion, item 2, known as the top wire-way cover. The sliding panel is made of three molded parts. The sliding panel is located in front of the horizontal busbars, items 6, 7 and 8 which are used to distribute power between motor control sections. Figure 2 shows the sliding panel assembly, item 1 of Figure 1, with the supporting frame, item 5 and individual sliding panels 3 and 4. the supporting frame, 5, holds the sliding panels 3 and 4 in place while providing for the panels to move slidably within the frame.
The supporting frame includes integral guides and stops for the panels. Figure 3 shows the sliding panels, item 3 and 4 within the non-conductive supporting frame and the horizontal busbars items 6, 7 and 8.

Claims (15)

1. A motor controller unit comprising: an enclosure having a plurality of separate compartments; electrical components within one of said compartments; a cabinet at a top of said enclosure, said cabinet containing separate electrical phase conductors and defining an opening for access to said phase conductors; and an electrically-insulative door on said cabinet and arranged for covering said access opening.
2. The motor controller unit of claim 1 wherein said door comprises a pair of first and second electrically-insulative panels arranged on an electrically-insulative frame.
3. The motor controller unit of claim 2 wherein said frame comprises a top plate, a bottom rail and a pair of opposing side pieces.
4. The motor controller unit of claim 3 wherein said bottom rail includes front and rear support tabs receiving therebetween a bottom edge of said first and second panels.
5. The motor controller unit of claim 4 wherein a top edge of said first and second panels is trapped behind said top plate and a top part of said cabinet.
6. The motor controller unit of claim 1 wherein said first panel includes a central tab extension on one end and further includes a first panel thru-hole formed in said first panel.
7. The motor controller unit of claim 6 wherein said second panel includes a top tab extension on one end.
8. The motor controller unit of claim 1 wherein said first and second panels include a closedended insert for providing digital access to an operator for moving said first and second panels along said bottom rail.
9. The motor controller unit of claim 6 wherein said flame includes a rectangular slot in one of said opposing side pieces.
10. The motor controller unit of claim 1 wherein said phase conductors comprise phase A, phase B and phase C vertical busses.
11. The motor controller unit of claim 10 wherein said phase A vertical bus is accessible when said first and second panels are both displaced to one side of said door.
12. The motor controller unit of claim 10 wherein said phase C vertical bus is accessible when said first panel is displaced to one side of said door and said second panel is displaced to an opposite side of said door.
13. The motor controller unit of claim 12 wherein said first panel thru-hole and said second panel thru-hole overlap to provide access to said phase C vertical bus.
14. The motor controller unit of claim 10 wherein said phase B vertical bus is accessible when first panel is displaced to one side of said door and said second panel is displaced a predetermine distance from and opposite end of said door.
15. A motor controller as claimed in claim 1 substantially as described by way of example with reference to the accompanying drawings.
GB9510380A 1995-05-23 1995-05-23 Motor control center Expired - Fee Related GB2301229B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9510380A GB2301229B (en) 1995-05-23 1995-05-23 Motor control center

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9510380A GB2301229B (en) 1995-05-23 1995-05-23 Motor control center

Publications (3)

Publication Number Publication Date
GB9510380D0 GB9510380D0 (en) 1995-07-19
GB2301229A true GB2301229A (en) 1996-11-27
GB2301229B GB2301229B (en) 1999-08-25

Family

ID=10774877

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9510380A Expired - Fee Related GB2301229B (en) 1995-05-23 1995-05-23 Motor control center

Country Status (1)

Country Link
GB (1) GB2301229B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2485398A (en) * 2010-11-15 2012-05-16 Lmr Technologies Ltd Movable shutter for permitting access to the interior of a cabinet

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB801919A (en) * 1957-05-25 1958-09-24 Automatic Telephone & Elect Improvements in or relating to electrical equipment mounting racks
US3628098A (en) * 1970-04-15 1971-12-14 Zinsco Electrical Products Cabinet for electrical controls with enclosed bus bars and opposed doors
GB2157086A (en) * 1984-04-02 1985-10-16 Fiskars Ab Oy Container for electrical or pneumatic apparatus
EP0447381A1 (en) * 1990-03-05 1991-09-18 Stohne Kraftteknik Ab Door for an electric switch cabinet

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4688144A (en) * 1986-01-23 1987-08-18 Siemens-Allis, Inc. Shutter assembly for a motor controller

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB801919A (en) * 1957-05-25 1958-09-24 Automatic Telephone & Elect Improvements in or relating to electrical equipment mounting racks
US3628098A (en) * 1970-04-15 1971-12-14 Zinsco Electrical Products Cabinet for electrical controls with enclosed bus bars and opposed doors
GB2157086A (en) * 1984-04-02 1985-10-16 Fiskars Ab Oy Container for electrical or pneumatic apparatus
EP0447381A1 (en) * 1990-03-05 1991-09-18 Stohne Kraftteknik Ab Door for an electric switch cabinet

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2485398A (en) * 2010-11-15 2012-05-16 Lmr Technologies Ltd Movable shutter for permitting access to the interior of a cabinet
WO2012066316A1 (en) * 2010-11-15 2012-05-24 Lmr Technologies Limited Improved sliding inspection window for high voltage switchgear cabinets
CN103229373A (en) * 2010-11-15 2013-07-31 Lmr技术有限公司 Improved sliding inspection window for high voltage switchgear cabinets
CN103229373B (en) * 2010-11-15 2016-10-12 Lmr技术有限公司 Slip inspection hatch for the improvement of high-tension switch cabinet
US9512667B2 (en) 2010-11-15 2016-12-06 Lmr Technologies Limited Sliding inspection window for high voltage switchgear cabinets

Also Published As

Publication number Publication date
GB2301229B (en) 1999-08-25
GB9510380D0 (en) 1995-07-19

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20130523