A kind of detection protective device of residual current circuit breaker
Technical field
The utility model belongs to residual current circuit breaker manufacture technology field, particularly relates to a kind of detection protective device of residual current circuit breaker.
Background technology
Residual current circuit breaker: can the switch of auto-action when leakage current exceedes predetermined value in circuit.Conventional residual current circuit breaker is divided into voltage-type and current mode two class, and current mode is divided into electromagnetic type and electron type two kinds.Residual current circuit breaker is used for preventing the person from getting an electric shock, and should require to select according to the difference of direct contact and indirect contact two kinds of prevention of electric shock.
All this link of detection of electrical leakage will be carried out when existing residual current circuit breaker is produced, as shown in Figure 1, detected residual current circuit breaker is mainly connected by detection terminal with checkout equipment when detecting by operating personnel, in actual mechanical process, operating personnel sometimes careless two detection terminals touch together, cause short circuit, such checkout equipment can be burnt, if detected residual current circuit breaker internal short-circuit, also checkout equipment can be burnt, and be inconvenient to fix when residual current circuit breaker detects, work efficiency is lower.
Summary of the invention
The purpose of this utility model is to provide a kind of detection protective device of residual current circuit breaker, to solve the problem.
In order to realize the purpose of this utility model, the utility model provides a kind of detection protective device of residual current circuit breaker, comprise checkout equipment and protective device, described protective device comprises three-pole breaker, two pole isolating switchs, insulcrete, guide rail, three-pole breaker and two pole isolating switchs are fixedly mounted on insulcrete by guide rail, the output terminal of described checkout equipment is connected with the input end of described three-pole breaker, the output terminal of described three-pole breaker is connected with the input end of described two pole isolating switchs, the output terminal of described two pole isolating switchs is connected with detection terminal and is respectively the first detection terminal and the second detection terminal.
Wherein, the output terminal of described three-pole breaker contacts with the input end of described two pole isolating switchs, forms inverted "L" shaped surveyed area between the two.
Wherein, the output terminal of described three-pole breaker is followed successively by the first output connection mouth, the second output connection mouth, the 3rd output connection mouth from left to right, the input end of described two pole isolating switchs, be followed successively by the first input wires mouth, the second input wires mouth from left to right, described first output connection mouth is connected by electric wire with described first input wires mouth, and described second output connection mouth is connected by electric wire with described second input wires mouth.
Wherein, described checkout equipment is remained current protector detector.
The utility model compared with prior art; when staff touches together by connecting a detection terminal because of carelessness; or during the residual current circuit breaker internal short-circuit be detected; the two pole isolating switchs detected in protective device will trip; checkout equipment so just can be protected not to be burned; and when detected residual current circuit breaker is single-pole circuit breaker; single-pole circuit breaker can be placed directly in the inverted "L" shaped monitored area that three-pole breaker and two pole isolating switchs are formed; fixation is played to single-pole circuit breaker, convenient detection.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art;
Fig. 2 is structural representation of the present utility model;
In figure, 1-checkout equipment, 2-three-pole breaker, 3-bis-pole isolating switch, 4-insulcrete, 5-guide rail, 6-first detection terminal, 7-second detection terminal, 8-the 3rd output interface, 9-checkout equipment output terminal, 10-is detected product.
Embodiment
In order to make the purpose of this utility model, technical scheme and beneficial effect clearly understand, below in conjunction with embodiment, the utility model is further elaborated.Should be understood to specific embodiment described herein only in order to explain the utility model, be not limited to protection domain of the present utility model.
As shown in Figure 2, the utility model provides a kind of detection protective device of residual current circuit breaker, comprise checkout equipment and protective device, described protective device comprises three-pole breaker, two pole isolating switchs, insulcrete, guide rail, three-pole breaker and two pole isolating switchs are fixedly mounted on insulcrete by guide rail, the output terminal of described checkout equipment is connected with the input end of described three-pole breaker, the output terminal of described three-pole breaker is connected with the input end of described two pole isolating switchs, the output terminal of described two pole isolating switchs is connected with detection terminal and is respectively the first detection terminal and the second detection terminal.
It should be noted that, when the product detected is two pole residual current circuit breaker, three pole residual current circuit breaker, during four pole residual current circuit breaker, the first detection terminal detecting protective device is connected with the connection terminal of detected residual current circuit breaker respectively with the second detection terminal, stir killer switch, whether the magnitude of voltage on viewing checkout equipment and current value be within scope of design, if detected value is in coverage, illustrate that detected residual current circuit breaker is up-to-standard, if detected residual current circuit breaker internal short-circuit off quality, so first the two pole isolating switchs detected in protective device will trip, checkout equipment so just can be protected not burnt.
In a preferred embodiment, the output terminal of described three-pole breaker contacts with the input end of described two pole isolating switchs, forms inverted "L" shaped surveyed area between the two.When detected product is one pole residual current circuit breaker; detected one pole residual current circuit breaker can be placed inverted "L" shaped surveyed area; the connection terminal of one pole residual current circuit breaker rear end can directly be connected with the 3rd output connection mouth detecting three grades of isolating switchs in protective device; the connection terminal of the front end of detected one pole residual current circuit breaker is connected with the first detection terminal or the second detection terminal detecting protective device; operate so not only easy but also facilitate the fixing of detected product, greatly can improve the work efficiency of staff.
In a preferred embodiment, the output terminal of described three-pole breaker is followed successively by the first output connection mouth, the second output connection mouth, the 3rd output connection mouth from left to right, the input end of described two pole isolating switchs, be followed successively by the first input wires mouth, the second input wires mouth from left to right, described first output connection mouth is connected by electric wire with described first input wires mouth, and described second output connection mouth is connected by electric wire with described second input wires mouth.
In a preferred embodiment, described checkout equipment is remained current protector detector.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.