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US 2022/0052512 A1Published application
Interlock system for a low, medium or high voltage switchgear
AssigneeABB Schweiz AG
InventorsMichal Skuci, Josef Cernohous
Life of this patent
Estimating the term…
Abstract
An interlock system for a low, medium or high voltage switchgear includes: a compartment; a door; a door handle; and a circuit breaker. The door permits access to an inside of the compartment. The door handle opens and closes the door. The circuit breaker is located in the compartment. The door handle is movable from a closed position to an open position. When the door handle is in the closed position, the door does not to open, and when the door handle is in the open position, the door opens. A movement of the door handle from the closed position to the open position places the circuit breaker in a locked configuration. In the
Claims36
An interlock system for a low, medium or high voltage switchgear, comprising:
- a compartment;
- a door;
- a door handle;
- and
- a circuit breaker,
- wherein the door is configured to permit access to an inside of the compartment,
- wherein the door handle is configured to open and close the door,
- wherein the circuit breaker is located in the compartment,
- wherein the door handle is configured to move from a closed position to an open position,
- wherein the interlock system is configured such that, when the door handle is in the closed position, the door is configured not to open, and when the door handle is in the open position, the door is configured to open,
- wherein a movement of the door handle from the closed position to the open position is configured to place the circuit breaker in a locked configuration, and
- wherein in the locked configuration the circuit breaker is not operable.
9 more elements
A low, medium or high voltage switchgear, comprising:
- a compartment;
- a door;
- a door handle;
- and
- a circuit breaker,
- wherein the door is configured to permit access to the inside of the compartment,
- wherein the door handle is configured to open and close the door,
- wherein the circuit breaker is located in the compartment,
- wherein the door handle is configured to move from a closed position to an open position,
- wherein a movement from the closed position to the open position is configured to place the circuit breaker in a locked configuration,
- wherein in the locked configuration the circuit breaker is not operable, and
- wherein, when the door handle is in the closed position, the door is configured not to open, and when the door handle is in the open position, the door is configured to open.
9 more elements
An interlock system for a low, medium or high voltage switchgear, comprising:
- a compartment;
- a door;
- a door handle;
- and
- a circuit breaker,
- wherein the door is configured to permit access to an inside of the compartment,
- wherein the door handle is configured to open and close the door,
- wherein the circuit breaker is located in the compartment,
- wherein the door handle is configured to move from a closed position to an open position,
- wherein the interlock system is configured such that, when the door handle is in the closed position, the door is configured not to open, and when the door handle is in the open position, the door is configured to open, and
- wherein, when the door handle is in the closed position, a movement of the circuit breaker from a racked out configuration to a racked in configuration is configured to place the door handle in a locked configuration where the door handle is locked from moving from the closed position to the open position.
8 more elements
A low, medium or high voltage switchgear, comprising:
- a compartment;
- a door;
- a door handle;
- and
- a circuit breaker,
- wherein the door is configured to permit access to an inside of the compartment,
- wherein the door handle is configured to open and close the door,
- wherein the circuit breaker is located in the compartment,
- wherein the door handle is configured to move from a closed position to an open position,
- wherein, when the door handle is in the closed position, a movement of the circuit breaker from a racked out configuration to a racked in configuration is configured to place the door handle in a locked configuration where it is locked from moving from the closed position to the open position, and
- wherein, when the door handle is in the closed position, the door is configured not to open, and when the door handle is in the open position, the door is configured to open.
8 more elements
An interlock system for a low, medium or high voltage switchgear, comprising:
- a compartment;
- a circuit breaker;
- an earthing switch;
- and
- an earthing switch operation handle or bar,
- wherein the circuit breaker is located in the compartment, and
- wherein the interlock system is configured such that, when the earthing switch operation handle or bar is inserted, the earthing switch is configured not to operate, and when the earthing switch operation handle or bar is not inserted, the earthing switch is configured to operate,
- wherein a movement of the circuit breaker from a racked in configuration to a racked out configuration is configured to de-activate a lock, and
- wherein de-activation of the lock is configured to enable the earthing switch operation handle or bar to be inserted.
6 more elements
A low, medium or high voltage switchgear, comprising:
- a compartment;
- a circuit breaker;
- an earthing switch;
- and
- an earthing switch operation handle or bar,
- wherein the circuit breaker is located in the compartment,
- wherein, when the earthing switch operation handle or bar is inserted, the earthing switch is configured not to operate, and when the earthing switch operation handle or bar is not inserted, the earthing switch is configured to operate,
- wherein a movement of the circuit breaker from a racked in configuration to a racked out configuration is configured to de-activate a lock, and
- wherein de-activation of the lock is configured to enable the earthing switch operation handle or bar to be inserted.
6 more elements
An interlock system for a low, medium or high voltage switchgear, comprising:
- a compartment;
- a door;
- a door handle;
- an earthing switch;
- and
- an earthing switch operation handle or bar,
- wherein the door is configured to permit access to an inside of the compartment,
- wherein the door handle is configured to open and close the door,
- wherein the door handle is configured to move from a closed position to an open position,
- wherein the earthing switch is configured to be transitioned to an on state through utilization of the earthing switch operation handle or bar, and the earthing switch is configured to be transitioned to an off state through utilization of the earthing switch operation handle or bar, and
- wherein the interlock system is configured such that, when the door handle is in the closed position, the door is configured not to open, and when the door handle is in the open position, the door is configured to open, and
- wherein, when the door handle is in the closed position, a transition of the earthing switch from the on state to the off state is configured to place the door handle in a locked configuration where the door handle is locked from moving from the closed position to the open position.
9 more elements
A low, medium or high voltage switchgear, comprising:
- a compartment;
- a door;
- a door handle;
- an earthing switch;
- and
- an earthing switch operation handle or bar,
- wherein the door is configured to permit access to an inside of the compartment,
- wherein the door handle is configured to open and close the door,
- wherein the door handle is configured to move from a closed position to an open position,
- wherein the earthing switch is configured to be transitioned to an on state through utilization of the earthing switch operation handle or bar, and the earthing switch is configured to be transitioned to an off state through utilization of the earthing switch operation handle or bar,
- wherein, when the door handle is in the closed position, the door is configured not to open, and when the door handle is in the open position, the door is configured to open, and
- wherein, when the door handle is in the closed position, a transition of the earthing switch from the on state to the off state is configured to place the door handle in a locked configuration where the door handle is locked from moving from the closed position to the open position.
9 more elements
Dependencies are inferred from the claim text.