Arc resistant exhaust and intake for drives and switchgear
First Claim
Patent Images
1. An arc resistant drive system comprising:
- a drive cabinet comprising a vent;
an arc resistant shutter plate assembly coupled to the drive cabinet and aligned adjacent to the vent, wherein the arc resistant shutter plate assembly comprises a plurality of shutter plates configured to automatically transition from an open position to a closed position when air pressure inside the drive cabinet exceeds a predetermined value, such that the shutter plates substantially restrict air flow through the vent in the closed position; and
an arc gas chamber positioned to receive arc gas redirected by the shutter plate assembly, wherein the arc gas chamber is disposed on top of the drive cabinet and configured to store the received arc gas.
1 Assignment
0 Petitions
Accused Products
Abstract
In accordance with presently disclosed embodiments, an arc resistant exhaust and intake for medium and high voltage switchgear is provided. In one embodiment, an arc resistant drive system may comprise: a drive cabinet comprising a vent; and an arc resistant shutter plate assembly coupled to the drive cabinet and aligned adjacent to the vent, wherein the arc resistant shutter plate assembly comprises a plurality of shutter plates configured to automatically transition from an open position to a closed position when air pressure inside the drive cabinet exceeds a predetermined value, such that the shutter plates substantially restrict air flow through the vent in the closed position.
-
Citations
18 Claims
-
1. An arc resistant drive system comprising:
-
a drive cabinet comprising a vent; an arc resistant shutter plate assembly coupled to the drive cabinet and aligned adjacent to the vent, wherein the arc resistant shutter plate assembly comprises a plurality of shutter plates configured to automatically transition from an open position to a closed position when air pressure inside the drive cabinet exceeds a predetermined value, such that the shutter plates substantially restrict air flow through the vent in the closed position; and an arc gas chamber positioned to receive arc gas redirected by the shutter plate assembly, wherein the arc gas chamber is disposed on top of the drive cabinet and configured to store the received arc gas. - View Dependent Claims (2, 3, 4, 5)
-
-
6. An arc resistant shutter plate assembly comprising:
-
one or more frames; and a plurality of shutter plates coupled to the one or more frames, wherein the plurality of shutter plates are aligned parallel to one another, and wherein the plurality of shutter plates are operable to automatically transition from an open position and a closed position based on a change in surrounding air pressure, wherein the arc resistant shutter plate assembly is coupled to a vent of a drive cabinet and an exhaust fan assembly, wherein the arc resistant shutter plate assembly is disposed internal to the drive cabinet. - View Dependent Claims (7, 8, 9, 10, 11)
-
-
12. A method for ventilating arc gas comprising:
-
disposing an arc resistant shutter plate assembly over an exhaust vent, wherein the arc resistant shutter plate assembly is coupled to a drive cabinet; automatically transitioning the arc resistant shutter plate assembly from an open position to a closed position upon a change in air pressure; directing air flow within the drive cabinet to an arc gas chamber, wherein the arc gas chamber is disposed on top of the drive cabinet; and ventilating air flow out of the arc gas chamber and the drive cabinet. - View Dependent Claims (13, 14, 15, 16, 17, 18)
-
Specification