摘要:
A flexible conductive element is provided for the conductor assembly of an electrical switching apparatus. The conductor assembly includes a load conductor, a movable contact assembly including a number of movable contact arms, movable electrical contacts mounted on the movable contact arms, and a plurality of flexible conductive elements. Each flexible conductive element includes a first end electrically connected to the load conductor, a second end electrically connected to a corresponding one of the movable contact arms of the movable contact assembly, and a plurality of bends between the first end and the second end. A first one of the bends is in a first direction and at least a second one of the bends is in a second direction which is generally opposite the first direction, in order that the flexible element is generally S-shaped. A conductor assembly and an electrical switching apparatus are also disclosed.
摘要:
A flexible conductive element is provided for the conductor assembly of an electrical switching apparatus. The conductor assembly includes a load conductor, a movable contact assembly including a number of movable contact arms, movable electrical contacts mounted on the movable contact arms, and a plurality of flexible conductive elements. Each flexible conductive element includes a first end electrically connected to the load conductor, a second end electrically connected to a corresponding one of the movable contact arms of the movable contact assembly, and a plurality of bends between the first end and the second end. A first one of the bends is in a first direction and at least a second one of the bends is in a second direction which is generally opposite the first direction, in order that the flexible element is generally S-shaped. A conductor assembly and an electrical switching apparatus are also disclosed.
摘要:
The stored energy device interlock assembly provided is structured to prevent the closing assembly and/or the latch assembly from being actuated in selected configurations. The interlock assembly includes a latch D-shaft link assembly, an on-command paddle assembly, and an on-command paddle actuator. The latch D-shaft link assembly is pivotally coupled to, and structured to rotate, the latch assembly D-shaft. The on-command paddle assembly is structured to move the D-shaft link assembly. The on-command paddle actuator is structured to move the on-command paddle assembly. The interlock assembly is structured to disengage the latch assembly D-shaft from the on-command paddle assembly in selected configurations of the electrical switching apparatus. The interlock assembly provided herein has two pivotal degrees of freedom as opposed to a pivotal degree of freedom and a sliding degree of freedom.
摘要:
The closing protection mechanism provided herein includes a control unit, a sensing switch and a sensing switch actuator. The control unit is coupled to, and in electronic communication with, the trip device. The control unit is structured to receive a sensing switch signal and to provide a control signal to the trip device. The sensing switch coupled to, and in electronic communication with, the control unit. The sensing switch is disposed adjacent to the toggle assembly. The sensing switch is structured to provide a sensing switch signal to the control unit. The sensing switch actuator is disposed on the toggle assembly. The sensing switch actuator is structured to actuate the sensing switch. The sensing switch is structured to be actuated by the sensing switch actuator when the toggle assembly is in the second, over-toggle configuration.
摘要:
A latch engagement control mechanism is provided for a latch assembly of a circuit breaker including a housing, separable contacts, and an operating mechanism having a pole shaft, and at least one link coupled to the pole shaft. The latch assembly includes a pivot member cooperable with such link. The latch engagement control mechanism includes a latch pin having a cut-out portion and pivoting among a first position in which the latch pin prevents the pivot member from pivoting, and a second position in which the cut-out portion provides a clearance for the pivot member to pivot. A latch member coupled to the latch pin at or about the cut-out portion, includes at least a first protrusion engageable by the pivot member to establish the first position of the latch pin.
摘要:
A spring assembly is provided for a yoke assembly of an electrical switching apparatus including a housing, separable contacts enclosed by the housing, and an operating mechanism structured to open and close the separable contacts. The operating mechanism includes a pole shaft. The yoke assembly is coupled to the pole shaft and is movable among first and second positions corresponding to the separable contacts being closed and open, respectively. The spring assembly includes a number of first springs having a first spring rate and being coupled to the yoke assembly, and a number of second springs having a second spring rate and being coupled to the yoke assembly. The second spring rate is different than the first spring rate. The number of first springs and the number of second springs bias the yoke assembly toward the second position.
摘要:
A pole shaft assembly for a circuit breaker includes a receiving portion disposed on the exterior side of the housing, a pole shaft pivotably disposed within the receiving portion and including at least one protrusion, a number of cover members overlaying the pole shaft and the receiving portion, at least one first seal disposed between the receiving portion and a corresponding protrusion, and at least one second seal disposed between such protrusion and a corresponding one of the cover members. The seals resist undesired entry of debris between the receiving portion and the pole shaft, and control the discharge of arc gases from the circuit breaker. The first seal is formed by the interaction between the receiving portion and the corresponding protrusion. The second seal is formed by the interaction between the protrusion and the corresponding one of the cover members.
摘要:
A charging handle is provided for an electrical switching apparatus including a housing having an exterior, an interior and a recess extending from the exterior toward the interior, separable contacts enclosed by the housing, an operating mechanism for opening and closing the separable contacts, and a charging assembly. A first end of the charging handle is coupled to the charging assembly within the interior of the housing. The second end includes a finger pull. An elongated body extends between the first and second ends and includes first and second sides, and inner and outer surfaces. The charging handle is movable among first and second positions. The finger pull is disposed on the outer surface of the elongated body at or about the second end of the charging handle, and is readily accessible from all of the second end and the first and second sides of the charging handle.
摘要:
A pivot assembly is provided for an electrical switching apparatus, such as a circuit breaker, including a housing having a molded cover and a molded base, a stationary contact assembly with stationary electrical contacts, and a movable contact assembly. The movable contact assembly includes at least one carrier assembly with a pivot, movable contact arms pivotably coupled to the carrier assembly, and movable electrical contacts coupled to the movable contact arms. The pivot assembly includes pivot members. Each pivot member includes an aperture for pivotably receiving the pivot of the carrier assembly in order that the carrier assembly is pivotably coupled between a corresponding pair of pivot members. Each pivot member is a separate independent component disposed between the molded cover and molded base of the circuit breaker housing. An electrical switching apparatus and a carrier assembly are also disclosed.
摘要:
A latch engagement control mechanism is provided for a latch assembly of a circuit breaker including a housing, separable contacts, and an operating mechanism having a pole shaft, and at least one link coupled to the pole shaft. The latch assembly includes a pivot member cooperable with such link. The latch engagement control mechanism includes a latch pin having a cut-out portion and pivoting among a first position in which the latch pin prevents the pivot member from pivoting, and a second position in which the cut-out portion provides a clearance for the pivot member to pivot. A latch member coupled to the latch pin at or about the cut-out portion, includes at least a first protrusion engageable by the pivot member to establish the first position of the latch pin.