CN201048117Y

CN201048117Y - Breaker with self-recovery device

Info

Publication number: CN201048117Y
Application number: CNU2007200696615U
Authority: CN
Inventors: 周科明
Original assignee: SHANGHAI DIANJIE TRADE CO Ltd
Current assignee: SHANGHAI DIANJIE TRADE CO Ltd
Priority date: 2007-05-08
Filing date: 2007-05-08
Publication date: 2008-04-16
Anticipated expiration: 2017-05-08

Abstract

The utility model relates to a breaker with a self-restoring device. The prior breaker has the problems that the prior breaker suffers noncausal momentary heavy current surge to cause disengaging and current failure, and when overload current disappears, the maintenance personnel are needed to be dispatched in time to the scene of accident for getting back a handle of the breaker to the turn-on guard state, etc. the breaker with the self-restoring device provided in the utility model comprises a breaker, a handle arranged on the upper end part of the breaker, a leading-in terminal and a leading-out terminal respectively arranged at the left and the right ends of the lower end part of the breaker, and an automatically restoring current overload protective device connected between the lead-in terminal and the lead-out terminal of the breaker in the bridge connection way. After suffering the disengaging of the momentary heavy current, the breaker with the self-restoring device provided in the utility model can automatically reset the circuit, so as to provide the maintenance personnel with enough time to perform the handle of the breaker to be restored to the turn-on position, thereby reducing the influence caused by the power cut. The utility model is suitable for the application of electrical equipment.

Description

The circuit breaker of band self-resetting devices

Technical field:

The utility model relates to a kind of circuit breaker, particularly relates to a kind of circuit breaker with self-resetting devices.

Background technology:

Development along with the urban economy construction; high building is rised sheer from level ground; the developing of highway and track traffic; extend; the rise of manufacturing; thus; circuit breaker is used widely; but in practice process; circuit breaker in use tends to run into the instantaneous large-current impact of unknown cause and the outage of threading off takes place, and when overload current disappears, also need send the maintenance personal to recover circuit breaker handle immediately to the scene of the accident to the connection guard mode; so just can make equipment proceed normal work; yet, at unattended machine room or outdoor equipment, tend to because of manpower too late; can not get instant recovery; so, both cause the normal accident of using of the equipment of influence, and can cause the certain economic loss again.

Summary of the invention:

The purpose of this utility model is the circuit breaker that a kind of improved band self-resetting devices will be provided, it can be realized effectively not only that circuit breaker causes in the impact of unknown cause instantaneous large-current under the situation of the outage of threading off and in time return to available electricity condition, and, eliminated the accident that is caused because of having a power failure fully.

Solution of the present utility model to achieve the above object is: the circuit breaker of band self-resetting devices of the present utility model has a circuit breaker; the end, upper end of described circuit breaker is provided with one handle; the left and right end in end, lower end of described circuit breaker is respectively equipped with an end of incoming cables and leading-out terminal, and cross-over connection has the current overload protector that automatically resets between the end of incoming cables of described circuit breaker and the leading-out terminal.

Because the utility model has improved existing circuit breaker; adopted between the end of incoming cables of circuit breaker and leading-out terminal the cross-over connection one current overload protector that automatically resets; so solved circuit breaker after running into the instantaneous large-current dropout; energy is multiplex circuit automatically; equipment can in time be restored electricity; guarantee the normal operation of equipment; and; awarding the maintenance personal has the sufficient time to reach the field conduct circuit breaker handle to return to on-position, and greatly reduces the influence that can not in time recover normal condition and caused because of the back that has a power failure.

Description of drawings:

Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.

Fig. 1 is the structural representation of the circuit breaker of band self-resetting devices of the present utility model.

Embodiment:

Be described in further detail below with reference to the circuit breaker of accompanying drawing band self-resetting devices of the present utility model.

Referring to Fig. 1; the circuit breaker of the band self-resetting devices of this utility model comprises a circuit breaker 1; the end, upper end of described circuit breaker 1 is installed on one handle 2; the left and right end in end, lower end of described circuit breaker 1 is fixed with an end of incoming cables 3 and leading-out terminal 4 respectively, between the end of incoming cables 3 of described circuit breaker 1 and the leading-out terminal 4 and be connected to the current overload protector 5 that automatically resets.

The circuit breaker of band self-resetting devices of the present utility model in use; when load current during greater than the rated current of circuit breaker of band self-resetting devices; circuit breaker tripping; the circuit breaker and the current overload protector that automatically resets disconnect in succession by certain time-delay; the current overload protector that automatically resets at the appointed time can recover on-state automatically; at this moment; recovered normal as load current; the current overload protector that automatically resets will keep on-state; make load restoration work; avoided the loss that caused because of after the delay time at stop so fully; if overload current exists; the current overload protector that automatically resets is logical with loop start; disconnected; disappear until overload current; automatically reset the current overload protector when recovering on-state automatically, and equipment management personnel just can return to the connection guard mode by administrative staff with circuit breaker handle at the appropriate time according to relevant information.

Claims

1. circuit breaker with self-resetting devices; it comprises a circuit breaker (1); the end, upper end of described circuit breaker (1) is provided with one handle (2); the left and right end in end, lower end of described circuit breaker (1) is respectively equipped with an end of incoming cables (3) and leading-out terminal (4), it is characterized in that between the end of incoming cables (3) of described circuit breaker (1) and the leading-out terminal (4) that cross-over connection has the current overload protector (5) that automatically resets.