CN202363377U

CN202363377U - Electric leakage breaker capable of providing continuous working power supply

Info

Publication number: CN202363377U
Application number: CN2011204729436U
Authority: CN
Inventors: 史祺; 暴凤蓉; 宋秀荣
Original assignee: Tianjin Baili Electronic Co Ltd
Current assignee: Tianjin Baili Electronic Co Ltd
Priority date: 2011-11-24
Filing date: 2011-11-24
Publication date: 2012-08-01
Anticipated expiration: 2021-11-24

Abstract

Provided is an electric leakage breaker capable of providing continuous working power supply. The electric leakage breaker comprises a pedestal for a power supply module of the electric leakage breaker. The pedestal is internally provided with a lying-U shaped coaming plate. A space, enclosed by three sides of the coaming plate, is internally provided with a 380 V transformer and a 220V transformer which are arranged at the upper and lower portion of the space respectively. A separator plate is arranged between the two transformers. Two ends of the primary coil of the 380V transformer are connected with two phases of a three-phase power supply, with the rest phase of the three-phase power supply being connected to one end of the primary coil. The other end of the primary coil of the 220V transformer is connected to a neutral pole of a major loop. The lead wires of the 24V secondary coil and primary coil of the two transformers are respectively led out through the branching holes in the sidewall plates of the coaming plate. The power supply module of the utility model is superior to other power supply modules in that: when any phase of the major loop experiences a phase-breaking fault, the working voltage of the electrical apparatus release of a breaker can be reliably provided, thus to realize earth leakage protection. In addition, the voltage collecting signals can be transmitted to the electrical apparatus release, thereby realizing the phase-breaking protection function. Moreover, the electric leakage breaker features high versatility degree.

Description

The RCCB of continuous operation power supply can be provided

Technical field

The utility model belongs to a kind of circuit breaker, particularly relates to a kind of RCCB that the continuous operation power supply can be provided.

Background technology

RCCB is one of low voltage component; It can not only play faults such as overload, short circuit in the general circuit breaker line disconnection; The normal operation of protection circuit and power consumption equipment is also played simultaneously and is avoided the fire incident that the person gets an electric shock and power-supply device causes because of insulation damages.Therefore the circuit breaker of creepage protection function is applied in building building and the electric power system widely.

Realize that creepage protection function mainly is will induce current signal by the inner ZCT of RCCB to offer the tripping system that leakage tripping device carries out computing, comparison, amplification and drive circuit breaker and make circuit breaker trip disjunction circuit.The leakage tripping device need of work has supply voltage, and general RCCB all is line voltage or a phase voltage of taking from major loop.If but major loop generation phase failure accident, the leakage tripping device of circuit breaker will lose power supply and can't work.RCCB has not had creepage protection function, brings Danger Electric shock risk to the person.

Summary of the invention

If the utility model provides a kind of major loop generation phase failure accident still can continue to provide the RCCB that the continuous operation power supply can be provided of supply voltage for solving the technical problem that exists in the known technology.

The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is: it includes the pedestal of power supply module of elective leakage circuit breaker; One U font coaming plate for sleeping in is arranged in described pedestal; The opening of the U font of described coaming plate is towards a sidewall of said pedestal, and the transformer of 380 volts and 220 volts is respectively arranged respectively up and down in the space that described U font coaming plate three faces for sleeping in surround; Between two transformers a dividing plate is arranged up and down described; On a sidewall paneling of the U word of described U font coaming plate for sleeping in and an adjacent sidewall paneling, the separated time hole is arranged respectively; A join end of said 220 volts of transformer of two termination three phase mains, two phases wherein of the primary coil of described 380 volts of transformers, another of described three phase mains, the neutral pole of another termination major loop of said 220 volts of transformer; 24 volts of secondary coil lead-in wires of said two transformers are drawn through the separated time hole on the bottom wall of the U word of described U font coaming plate for sleeping in; And the lead-in wire of the primary coil of described two transformers is drawn by the separated time hole of a sidewall paneling of the U word of described U font coaming plate for sleeping in.

The utility model can also adopt following technical scheme:

On three wallboards of described U font coaming plate for sleeping in, also has a slot that supplies described dividing plate to insert.

The advantage that the utlity model has with good effect is: since adopted in the power module of RCCB, be provided with a primary coil two termination three phase mains wherein two mutually 380 volts transformer and a primary coil a termination three phase mains another mutually; 220 volts of transformers of the neutral pole of another termination major loop of primary coil, thereby make the power module of the utility model that following some advantage arranged:

1. when major loop any mutually open phase fault takes place, the operating voltage of circuit breaker leakage tripping device can be provided reliably, guarantee the creepage protection function of RCCB.

2. dress transformer defensive wall avoids confusion the primary and secondary lead-in wire of transformer at the separated time square hole of diverse location, conveniently is connected with circuit.

3. this power supply is not merely creepage protection function continuous working power is provided, and also can the voltage acquisition signal be transferred to release and realize phase failure protection function.

4. pedestal itself has the shell of adorning transformer, not only saves this part but also install without securing member, and is cost-saved.

5. the versatility degree is high.

Description of drawings

Fig. 1 is one of perspective view of the utility model;

Fig. 2 be the utility model perspective view two;

Fig. 3 be the utility model perspective view three.

Embodiment

For further understanding summary of the invention, characteristics and the effect of the utility model, the following examples of giving an example now, and conjunction with figs. specifies as follows:

Like Fig. 1,2, shown in 3, a U font coaming plate 4 for sleeping in is arranged in the pedestal 1, the opening of the U font of coaming plate 4 respectively has one 380 volts transformer 2 and one 220 volts transformer 3 towards a sidewall of pedestal 1 up and down respectively in the space that U font coaming plate 4 three faces that crouch surround; At two transformers 2 up and down, a dividing plate 5 is arranged between 3; Two termination three phase mains, two phases wherein of the primary coil of 380 volts of transformers 2; A join end of 220 volts of transformer 3 primary coils of another of three phase mains; Their lead-in wire is passed by the separated time hole 7 on the sidewall paneling of the U word of the U font coaming plate 4 that crouches, and the neutral pole of another termination major loop of 220 volts of transformer 3 primary coils and pass by the special-purpose separated time hole 8 on the sidewall paneling of the U word of coaming plate 4; 24 volts of secondary coil lead-in wires of two transformers 2,3 are drawn through the separated time hole 6 on the bottom wall of the U word of the U font coaming plate 4 that crouches.On the bottom wall of the U word of the U font coaming plate 4 that crouches, a slot that supplies dividing plate 5 to insert is arranged.

Claims

1. RCCB that the continuous operation power supply can be provided; It includes the pedestal of power supply module of elective leakage circuit breaker; It is characterized in that: a U font coaming plate for sleeping in is arranged in described pedestal; The opening of the U font of described coaming plate is towards a sidewall of said pedestal, and the transformer of 380 volts and 220 volts is respectively arranged respectively up and down in the space that described U font coaming plate three faces for sleeping in surround; Between two transformers a dividing plate is arranged up and down described; On a sidewall paneling of the U word of described U font coaming plate for sleeping in and an adjacent sidewall paneling, the separated time hole is arranged respectively; A join end of said 220 volts of transformer of two termination three phase mains, two phases wherein of the primary coil of described 380 volts of transformers, another of described three phase mains, the neutral pole of another termination major loop of said 220 volts of transformer; 24 volts of secondary coil lead-in wires of said two transformers are drawn through the separated time hole on the bottom wall of the U word of described U font coaming plate for sleeping in; And the lead-in wire of the primary coil of described two transformers is drawn by the separated time hole of a sidewall paneling of the U word of described U font coaming plate for sleeping in.

2. the RCCB that the continuous operation power supply can be provided according to claim 1 is characterized in that: on three wallboards of described U font coaming plate for sleeping in, also have a slot that supplies described dividing plate to insert.