Cover mounted handle operating mechanism with integrated interlock assembly for a busplug enclosure

• US 8,847,088 B2
• Filed: 09/22/2011
• Issued: 09/30/2014
• Est. Priority Date: 09/22/2011
• Status: Active Grant

• Current Assignee: ABB Schweiz AG (ABB Limited)
• Original Assignee: General Electric Company
• Inventors: Bhathija, Kuldeep Kumar, Cox, Jeffrey Lynn, Richard, Steven English, Walker, Clarence Wilson, Purohit, Shravan
• Primary Examiner(s): LUEBKE, RENEE S
• Assistant Examiner(s): Caroc, Lheiren Mae A
• Application Number:
  US13/239,559
• Publication Number:
  US 20130075239A1
• Time in Patent Office: 1,104 Days
• Field of Search: 200/293, 200/333
• US Class Current: 200/293
• CPC Class Codes: H01H 9/22 for interlocking between casing, cover, or protective shutter and mechanism for operating contacts explosion-proof cases H01H9/045; built-in fuses and interlocking mechanisms H01H9/104; by automatic release of circuit breakers H01H71/126
• CPC Class Codes: H02G 5/08 Connection boxes therefor

Abstract

A busplug enclosure includes a body member includes a plurality of wall members that collectively define an interior chamber having an opening. The body member includes a line portion and a load portion. A cover assembly is mounted to the body member across the opening. The cover assembly includes a first cover member spanning the load portion and a second cover member spanning the line portion. A handle operating mechanism is mounted to the cover assembly. The handle operating mechanism includes a handle member configured to rotate about an axis extending through the cover assembly, a cam member and a slider member. The handle member is operatively coupled to the cam member and the slider member and configured and disposed to move between a first position and a second position.

Claims

1. A busplug enclosure comprising:

a body member including a plurality of wall members that collectively define an interior chamber having an opening, the body member including a line portion and a load portion;

a cover assembly mounted to the body member across the opening, the cover assembly including a first cover member spanning the load portion and a second cover member spanning the line portion;

a handle operating mechanism mounted to the cover assembly, the handle operating mechanism including a handle member configured to rotate about an axis extending through the cover assembly, a cam member and a slider member, the handle member being operatively coupled to the cam member and the slider member and configured and disposed to move between a first position and a second position; and

an indicator member coupled to the handle member, the indicator member providing a first indication when the handle member is in the first position and a second indication when the handle member is in the second position, wherein the second cover member includes an interlock member configured and disposed to receive the indicator member when the handle member is in one of the first and second positions.

2. The busplug enclosure according to claim 1, further comprising a switching mechanism operatively coupled to the handle operating mechanism, the slider member including a fork member configured to engage with the switching mechanism.

3. The busplug enclosure according to claim 1, wherein the handle operating mechanism is mounted to the first cover member.

4. The busplug enclosure according to claim 1, further comprising:

a barrier support spanning the opening, the barrier support supporting each of the first and second cover members.

5. The busplug enclosure according to claim 1, wherein the cam member includes a post element configured and disposed to engage with the slider member.

6. The busplug enclosure according to claim 1, further comprising:

first and second guide members mounted to the cover, the first and second guide members being configured and disposed to constrain movement of the slider member along a single axis.

7. An electrical disconnect system comprising:

a busplug enclosure including a body member having a plurality of wall members that collectively define an interior chamber provided with an opening, the body member including a line portion and a load portion;

an electrical disconnect arranged within the interior chamber, the electrical disconnect including a switching mechanism that is configured to pivot about a first axis between a first position and a second position;

a cover assembly mounted to the body member across the opening, the cover assembly including a first cover member spanning the line portion and a second cover member spanning the load portion;

a handle operating mechanism mounted to the cover assembly, the handle operating mechanism including a handle member configured to rotate about a second axis extending through the cover assembly, a cam member and a slider member, the handle member being operatively coupled to a cam member and a slider member, the slider member being configured to operatively engage with the electrical disconnect, to shift the switching mechanism between the first position and the second position; and

an indicator member coupled to the handle member, the indicator member providing a first indication when the switching mechanism is in the first position and a second indication when the switching mechanism is in the second position, wherein the second cover member includes an interlock member configured and disposed to receive the indicator member when the handle member is in one of the first and second positions.

8. The electrical disconnect system according to claim 7, comprising a switching mechanism operatively coupled to the handle operating mechanism, the slider member including a fork member configured to engage with the switching mechanism.

9. The electrical disconnect system according to claim 7, wherein the handle operating mechanism being mounted to the first cover member.

10. The electrical disconnect system according to claim 7, a barrier support spanning the opening, the barrier support supporting each of the first and second cover members.

11. The electrical disconnect system according to claim 7, wherein the cam member includes a post element configured and disposed to engage with the slider member.

12. The electrical disconnect system according to claim 7, further comprising:

first and second guide members mounted to the cover assembly, the first and second guide members being configured and disposed to constrain movement of the slider member along a single axis.

13. A method of operating an electrical disconnect housed in a busplug enclosure having a cover and a handle member mounted to the cover, the method comprising:

rotating a handle member about a first axis that extends through a cover assembly including a first cover member and a second cover member from a first position to a second position;

rotating a cam member operatively coupled to the handle member about the first axis;

shifting a slider member operatively coupled to the cam member along a second axis, the second axis extending substantially perpendicularly relative to the first axis;

moving a handle operating mechanism operatively coupled to the slider member from one of a connect position and a disconnect position to another of a connect position and a disconnect position;

rotating a position indicator member operatively coupled to the handle member; and

engaging an interlock member on the second cover member with the position indicator member as the handle member rotates toward the connect position locking the cover assembly.

14. The method of claim 13, further comprising:

unlocking the cover assembly when the handle member rotates toward the disconnect position.