Latch device and operating mechanism having such a latch device
A technology of latch device and operating mechanism, which is applied in the direction of contact operating mechanism, protection switch operation/release mechanism, emergency protection device, etc., which can solve the problems of increasing system operating time and achieve the effect of reducing product cost
Active Publication Date: 2020-03-27
HITACHI ENERGY SWITZERLAND AG
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Problems solved by technology
This takes time, thus increasing the operating time of the system
Method used
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[0066] exist figure 1 The latch arrangement is shown in a position to hold an operating mechanism 100 of an electrical switching apparatus, such as a circuit breaker, in a locked position. In this position, the circuit breaker is ready to trip the circuit breaker if required. The operating mechanism may be of conventional type and requires no explanation to those skilled in the art. Accordingly, the operating mechanism is mainly indicated as a frame 100 and only its drive member 101 cooperating with the latching device of the present invention is shown.
[0067] Thus, the operating mechanism may generally have a rotatable drive unit drivingly connected to a rotatable drive shaft arranged to transmit the actuating movement to the switching device, for example via mechanical structures known to the person skilled in the art Moving contact parts transmitted to switchgear. The moving contact is able to move towards or away from another contact part to close and break a current ...
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The invention relates to a latching device for an operating mechanism (100) of an electrical switching device. The device has a locking member (1) movable between a first position and a second position. In the first position, the locking member (1) is arranged to lock the driving member (101) of the operating mechanism (100) in the locked position, and the force (F) of the driving member (101) is applied to the contact portion of the locking member (1) (11). In the second position, the locking member (1) is arranged to release the drive member (101) from the locked position. At least in the first position, the locking member (1) is arranged against the reaction roller. The trip member (3) is movable between a first position for locking the locking member (1) and a second position for releasing the locking member. According to the invention, the locking member (1) has a first part (12) and a second part (13). The first part pivots around the first pivot axis (P 1 ) is rotatably connected to the first link (4), the first pivot axis (P 1 ) can be moved perpendicular to its direction. The second part (13) pivots around the second pivot axis (P 2 ) is rotatably connected to the second link (5), the second pivot axis (P 2 ) can be moved perpendicular to its direction. The second link (5) pivots around the third pivot axis (P 3 ) is rotatably connected to the trip member (3). Movement of the trip member (3) from its first position to its second position causes the contact portion (11) to move out of force transmitting relationship with the drive member (101). The invention also relates to an operating mechanism provided with a latch device according to the invention.
Description
technical field [0001] The invention relates to a latching device for an operating mechanism of an electrical switching device, the operating mechanism being operatively connected to the switching device, the latching device comprising: [0002] a locking member movable between at least one first position and at least one second position, in the first position the locking member is arranged to lock the drive member of the operating mechanism in the locked position and the force of the drive member is applied to the locking member and in the second position, the locking member is arranged to release the drive member from the locked position, [0003] a reaction roller defining a first axis, at least in a first position the locking member is arranged against the reaction roller, [0004] tripping member movable between at least one first tripping position and at least one second tripping position, in the first tripping position, the tripping member is arranged to lock the locki...
Claims
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IPC IPC(8): H01H71/50H01H3/30
CPCH01H3/3031H01H71/505H01H2071/506
Inventor D·斯塔法斯J·特雷道克斯
Owner HITACHI ENERGY SWITZERLAND AG