TWM475014U - Rotary cut-off safety lock for no fuse circuit breaker circuit maintenance - Google Patents

Description

The fuseless circuit breaker circuit repairs the rotary power failure safety lock.

Ensure that personnel equipment is electrically safe.

No-fuse circuit breaker manufacturing technology.

Generally, the fuseless circuit breaker only protects against load current protection and short-circuit current; it can not be implemented to prevent any non-professional opening, prevent the occurrence of electric shock accidents, and ensure the safety of circuit maintenance after power failure.

The fuseless circuit breaker circuit repairs the rotary power failure safety lock.

The "Fuseless Circuit Breaker" originally manufactured by the company is equipped with the "Circuit Maintenance Rotary Power-off Safety Lock" on the "Fuseless Circuit Breaker Body Cover" to prevent the "Fuseless Circuit Breaker" open circuit maintenance circuit. During maintenance, any other unrelated personnel may open the "Fuseless Circuit Breaker" without permission to cause a power failure of the repair circuit or equipment.

1‧‧‧Fuseless circuit breaker body cover

2‧‧‧Power failure security lock key

3‧‧‧Power failure safety lock

4‧‧‧Rotary power failure safety lock actuator

5‧‧‧Fuseless circuit breaker common tripping and disconnecting device

Figure 1: Fuseless circuit breaker circuit repair rotary power failure safety lock diagram

Figure 2: Diagram of power-off safety lock device without fuse line breaker

Figure 3: Rotary power failure safety lock diagram

Install the circuit to repair the rotary power-off safety lock on the no-fuse circuit breaker. The cover of the fuseless circuit breaker body is shown in the figure (Fig. 1): the fuseless circuit breaker body cover (1) is installed with the "circuit maintenance rotary power failure safety lock as shown in the figure (Figure 1): The electric safety lock (3) and the rotary power-off safety lock actuating device (4) enable the "fuseless circuit breaker" to be operated on the front as shown in the figure (Fig. 2) after the normal installation is completed; When the circuit is repaired, lock the "circuit maintenance rotary power-off safety lock" after power-off to make the "rotary power-off safety lock device as shown in the figure (Figure 3): rotary power-off safety lock actuator (4)" Stuck the "fuseless circuit breaker common trip and power off device as shown in the figure (Figure 1): no fuse circuit breaker common trip and power off device (5)" and remove the "circuit maintenance rotary power failure safety lock The key is as shown in the figure (Figure 1): the power-off safety lock key (2) 』 locks the circuit to make the non-fuse circuit breaker in the open circuit lock state, in order to prevent non-electricians from arbitrarily starting the fuseless circuit breaker, resulting in electrical Accidents occur; to ensure safe use of electricity.

1‧‧‧Fuseless circuit breaker body cover

2‧‧‧Power failure security lock key

3‧‧‧Power failure safety lock

4‧‧‧Rotary power failure safety lock actuator

5‧‧‧Fuseless circuit breaker tripping and disconnecting device

Claims (3)

A fuseless circuit breaker circuit repairs a rotary power failure safety lock, the fuseless circuit breaker includes an upper cover, a casing and a tripping mechanism; and the tripping mechanism further comprises: an operating handle, the operating handle has a rotation connection a through hole on the fixed shaft of the outer casing to operate the opening (OFF) and the ON (ON) of the fuseless circuit breaker; a support seat rotatably sleeved on a fixed shaft fixed to the outer casing; a movable contact, the upper end of the movable contact is sleeved on the fixed shaft of the outer casing together with the support; a tripping rod, that is, the fuseless circuit breaker common tripping and breaking device, and the tripping rod One end is movably connected to the return rod, and the other end is movably connected in the guiding groove of the outer casing; an overcurrent protection bimetal; the bimetal is fixed on the conductor of the outer casing, and the overcurrent protection is adjusted by adjusting the screw, and Drive the common tripping and breaking device to achieve the electrical protection function; a fixed moving contact, the fixed contact is fixed on the outer casing to be used as a power source; and a no-fuse circuit breaker circuit repairs the rotary power-off The lock adopts a round mechanical bolt type fixed lock, which is connected to the upper cover of the non-fuse circuit breaker, and is connected to the trip lever by a rotary power-off safety lock device, and is rotated by the opening or locking of the power-off safety lock key. The power-off safety lock device is used to control the trip bar. For example, the circuit maintenance rotary power-off safety lock described in the first application of the patent scope is placed on the front operation panel of the fuseless circuit breaker after the normal use of the fuseless circuit breaker is completed; when the power circuit is repaired After the power is cut off, the locking circuit repairs the rotary power-off safety lock, so that the rotary power-off safety lock device is stuck with the fuse-free circuit breaker common tripping and power-off device; and the circuit maintenance rotary power-off safety lock is removed. The key locks the circuit to place the fuseless circuit breaker in an OFF state to prevent non-electrical personnel from arbitrarily starting the fuseless circuit breaker, causing an electrical accident to occur; ensuring personnel safety. For example, the circuit maintenance rotary power-off safety lock described in the first paragraph of the patent scope is to use the power-off safety lock key to operate the power-off safety lock to drive the lock rotary power-off safety lock device to lock or open the fuseless circuit breaker common jump. The electrical device is disconnected to achieve the operation or locking function of the fuseless circuit breaker.