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US 9,871,358 B2Granted
Electrical switchgear system
AssigneeABB Schweiz AG
InventorsRahul Pawar, Rob S Karnbach
Life of this patent
Estimating the term…
Abstract
A unique electrical switchgear system may include a circuit breaker compartment having a compartment wall. The electrical switchgear system may also include a tapered floor pan mounted on the compartment wall. The floor pan may have two side walls disposed oblique to each other; a back wall; and a top wall coupled to the side walls and defining a discharge opening adjacent to the back wall. The two side walls, the top wall and the compartment wall may form a tunnel for channeling cooling air in a first direction. The back wall may be operative to redirect the cooling air in a second direction different from the first direction for discharging the cooling air from the discharge opening.
Claims20
An electrical switchgear system, comprising:
- a circuit breaker compartment;
- a floor pan located within the compartment and having two side walls disposed oblique to each other;
- a back wall;
- and a top wall coupled to the side walls and defining a discharge opening adjacent to the back wall;
- and
- wherein the two side walls, the top wall and a bottom wall form a tunnel for channeling cooling air in a first direction, and wherein the back wall includes a portion extending from a distal end of a first sidewall of the two sidewalls to a distal end of a second sidewall of the two sidewalls that blocks passage of cooling air therethrough between the distal end of the first sidewall and the distal end of the second sidewall, wherein the back wall is operative to redirect the cooling air in a second direction different from the first direction for discharging the cooling air from the discharge opening.
3 more elements
An electrical switchgear system, comprising:
- a circuit breaker compartment having a compartment wall;
- a plurality of electrical phase components disposed within the circuit breaker compartment;
- and
- a tapered structure coupled to the compartment wall and operative to distribute cooling air to the electrical phase components, the tapered structure comprising:
- first and second side walls spaced apart from each other and disposed oblique to each other;
- an intake for receiving the cooling air defined between proximal ends of the first arid second sidewalls;
- a back wall having first and second ends disposed at respective distal ends of the first and second side walls, the back wall extending from the distal end of the first side wall to the distal end of the second side wall to block passage of cooling air between the first and second ends of the back wall therethrough past the respective distal ends of the first and second side;
- and
- a top plate spaced apart from the compartment wall and coupled to the first and second sidewalls, the top plate including a cooling air discharge opening adjacent to the back wall and disposed at an angle relative to the intake,
- wherein the back wall is constructed to redirect the cooling air received from the air intake to the cooling air discharge opening of the top plate.
7 more elements
An electrical switchgear system, comprising;
- a circuit breaker compartment having a floor therein for mounting a floor pan;
- a tapered floor pan mounted on the floor, the floor pan including a first wall;
- a second wall spaced apart from and oblique to the first wall;
- first and second deflectors disposed between the first wall and the second wall;
- an end wall coupled to and extending from the first wall to the second wall and oriented to prohibit passage of cooling air between the first wall and the second wall therethrough;
- and a top plate spaced apart from the floor and coupled to the first wall and the second wall, wherein proximal ends of the first wall, the second wall, and the top plate, in conjunction with the floor form an intake for receiving cooling air into the floor pan;
- wherein the top plate defines a cooling air discharge opening adjacent to the end wall and perpendicular to the intake for discharging the cooling air;
- wherein the first and second deflectors subdivide the cooling air discharge opening into a plurality of discharge opening portions;
- and wherein the end wall is constructed to redirect the cooling air received from the intake to the cooling air discharge opening of the top plate;
- a first electrical phase component partially overhanging a first of the discharge opening portions;
- a second electrical phase component partially overhanging a second of the discharge opening portions;
- a third electrical phase component partially overhanging a third o he discharge opening portions;
- wherein the first wall, the second wall, the first deflector, the second deflector, the floor and the top plate form a plurality of tunnels extending from the intake in a direction perpendicular to the cooling air discharge opening for delivering the cooling air to the plurality of discharge opening portions for convective cooling of the first, second and third electrical phase components.
10 more elements
Dependencies are inferred from the claim text.