CN203260542U - Residual current operated circuit breaker - Google Patents

Residual current operated circuit breaker Download PDF

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Publication number
CN203260542U
CN203260542U CN 201320303186 CN201320303186U CN203260542U CN 203260542 U CN203260542 U CN 203260542U CN 201320303186 CN201320303186 CN 201320303186 CN 201320303186 U CN201320303186 U CN 201320303186U CN 203260542 U CN203260542 U CN 203260542U
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CN
China
Prior art keywords
connecting portion
zero line
input
wide
output
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201320303186
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Chinese (zh)
Inventor
林孟东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Chengtong Electric Power Technology Co Ltd
Original Assignee
Zhejiang Chengtong Electric Power Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Chengtong Electric Power Technology Co Ltd filed Critical Zhejiang Chengtong Electric Power Technology Co Ltd
Priority to CN 201320303186 priority Critical patent/CN203260542U/en
Application granted granted Critical
Publication of CN203260542U publication Critical patent/CN203260542U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a residual current operated circuit breaker, comprising a pedestal. The pedestal is internally provided with thermal elements, input ends, connection parts, output ends, a current transformer and a zero sequence mutual inductor. Each thermal element, each input end, each connection part and each output end are connected in sequence. Each output end passes through the current transformer. Each connection part passes through the zero sequence mutual inductor. Each thermal element, each input end and each output end all comprises a wide surface and a narrow surface, each wide surface is vertical to a corresponding narrow surface, and the size of each wide surface is larger than the size of the corresponding narrow surface. Two ends of each connection part are provided with a wide surface and a narrow surface separately. The wide surface and the narrow surface of each end of each connection part are vertical to each other, and the size of the wide surface is larger than that of the narrow surface of each end of each connection part. The wide surfaces of the two ends of each connection part are in the same plane with the wide surface of each input end and the wide surface of each output end. The residual current operated circuit breaker is safe as each connection part is large in fixedly-connected contact area and low in temperature rise.

Description

Residual current action breaker
Technical field
The utility model relates to residual current action breaker.
Background technology
Existing circuit breaker, comprise pedestal, among pedestal, be provided with thermal element, input, connecting portion, output, current transformer and zero-sequence transformer, input passes current transformer, connecting portion passes zero-sequence transformer, one end of connecting portion is fixedly connected with the other end and is fixedly connected with output with input, to be connecting portion pass zero-sequence transformer in the mode of standing to its weak point is installed among the pedestal, it is too small to make connecting portion one end and input and the connecting portion other end and output be fixedly connected with the area that contacts, when electric current passes through this tie point, the junction electric current is excessive, temperature rise is generated heat easily, thereby there is potential safety hazard in the stability when affecting circuit breaker cut-out circuit.
Summary of the invention
The utility model residual current action breaker technical problem to be solved is: provide a kind of junction to be fixedly connected with the residual current action breaker that contact area is large, temperature rise is low, safe.
For solving the problems of the technologies described above, residual current action breaker of the present utility model is by the following technical solutions: residual current action breaker, comprise pedestal, among pedestal, be provided with thermal element, input, connecting portion, output, current transformer and zero-sequence transformer, thermal element, input, connecting portion, output connects successively, input passes current transformer, connecting portion passes zero-sequence transformer, thermal element, input and output have respectively wide and leptoprosopy, wide is mutually vertical with leptoprosopy, wide area is greater than the leptoprosopy area, the two ends of described connecting portion have respectively wide and leptoprosopy, wide of each end of connecting portion is all with leptoprosopy that a vertical and wide area is greater than the leptoprosopy area mutually, and wide of the connecting portion two ends is in same plane with wide of input and the wide face of output respectively.
The beneficial effect of the utility model residual current action breaker is: by connecting portion being horizontally installed among the pedestal, make wide of connecting portion to be on the same plane with wide of input and the wide face of output, thereby increase the connection area that connecting portion one end and input and the other end are fixedly connected with output, temperature rise is low when impelling electric current to pass through this, heating is little, stability is high, therefore circuit breaker disengagement failure circuit is accurately removed potential safety hazard.
The technical scheme that the utility model provides improved residual current action breaker to adopt is: described input, connecting portion and output are one-body molded, by one-body molded, make between input, connecting portion and the output and do not have connection welding, therefore be not easy heating when electric current is by input, connecting portion and output, temperature rise is low, high pressure resistant, and this structure, integral body more firmly, do not need to weld, processing is convenient.
The technical scheme that the utility model provides further improved residual current action breaker to adopt is: described connecting portion comprises the first connecting portion, the second connecting portion and the 3rd connecting portion, described the first connecting portion, be middle interconnecting piece between the second connecting portion and the 3rd connecting portion two ends separately, the middle interconnecting piece of the first connecting portion is in the below of the middle interconnecting piece of the second connecting portion, the middle interconnecting piece of the 3rd connecting portion is in the right side of the middle interconnecting piece of the second connecting portion, arrange by this positional structure, make the first connecting portion, the second connecting portion and the 3rd connecting portion can both pass zero-sequence transformer easily, make the first connecting portion, have enough spaces between the second connecting portion and the 3rd connecting portion, prevent the phase mutual interference.
The technical scheme that the utility model provides further improved residual current action breaker to adopt is: be enclosed with insulating paper on the described connecting portion, and high temperature resistant, high pressure resistant, insulating properties is better, makes circuit breaker general safety performance better.
The technical scheme that the utility model provides further improved residual current action breaker to adopt is: described pedestal also is provided with zero line input, zero line connecting portion and zero line output, described zero line connecting portion passes zero-sequence transformer, zero line connecting portion one end is fixedly connected with the other end and is fixedly connected with the zero line output with the zero line input, described zero line connecting portion is the multiply annealed copper wire, because the zero line connecting portion is the multiply annealed copper wire can change shape, therefore the zero line connecting portion can be convenient passes zero-sequence transformer, makes installation more convenient.
Below in conjunction with drawings and Examples residual current action breaker of the present utility model is further described in detail.
Description of drawings
Fig. 1 is the overall structure schematic diagram of the utility model residual current action breaker.
Embodiment
As shown in Figure 1, the specific embodiment of the utility model residual current action breaker, comprise pedestal 1, among pedestal 1, be provided with thermal element 2, input 3, connecting portion 4, output 5, current transformer 6 and zero-sequence transformer 7, thermal element 2, input 3, connecting portion 4, output 5 connects successively, input 3 passes current transformer 6, connecting portion 4 passes zero-sequence transformer 7, thermal element 2, input 3 and output 5 have respectively wide 8 and leptoprosopy 9, that is to say wide 8 and be thermal element 2, the front of input 3 and output 5, with pedestal 1 just facing to identical, pedestal 1 is just facing the human body direction, leptoprosopy 9 is wide 8 side.Be mutually vertical with leptoprosopy 9 for wide 8, wide 8 areas are greater than leptoprosopy 9 areas, the two ends of described connecting portion 4 have respectively wide 8 and leptoprosopy 9, that is to say that termination, connecting portion 4 two ends has wide 8 and leptoprosopy 9, wide 8 of connecting portion 4 each end all is mutually vertical and wide 8 areas greater than leptoprosopy 9 areas with leptoprosopy 9, wide 8 of connecting portion 4 two ends is in same plane with 3 wide 8 of inputs and 5 wide 8 of outputs respectively, that is to say wide 8 of connecting portion 4 two ends with 5 wide 8 of 3 wide 8 of inputs and outputs towards identical, connecting portion 4 is arranged among the pedestal 1 in sidewards mode, described input 3, connecting portion 4 and output 5 are one-body molded, that is to say and do not have connection welding, being wholely set to form makes connecting portion 4 security performances better, be enclosed with insulating paper on the described connecting portion 4, that is to say that insulating paper is high pressure resistant at connecting portion 4 surface bag one deck insulating papers, high temperature resistant.Described connecting portion 4 comprises the first connecting portion 4-1, the second connecting portion 4-2 and the 3rd connecting portion 4-3, described the first connecting portion 4-1, be middle interconnecting piece 4-4 between the second connecting portion 4-2 and the 3rd connecting portion 4-3 two ends separately, the middle interconnecting piece 4-4 of the first connecting portion 4-1 is in the below of the middle interconnecting piece 4-2 of the second connecting portion 4-2, the middle interconnecting piece 4-4 of the 3rd connecting portion 4-3 is in the right side of the middle interconnecting piece 4-4 of the second connecting portion 4-2, that is to say the first connecting portion 4-1, the position relationship of the second connecting portion 4-2 and the 3rd connecting portion 4-3, middle interconnecting piece 4-4 is part between connecting portion 4 two ends, arranges like this and saves the space.
The residual current action breaker of present embodiment is the three-phase and four-line residual current action breaker, thermal element 2 comprises the first thermal element 2-1, second connects thermal element 2-2 and the 3rd thermal element 2-3, input 3 comprises first input end 3-1, the second input 3-2 and the 3rd input 3-3, output 5 comprises the first output 5-1, the second output 5-2 and the 3rd output 5-3, the first thermal element 2-1, first input end 3-1, the first connecting portion 4-1 be connected output 5-1 and connect successively, the second thermal element 2-2, the second input 3-2, the second connecting portion 4-2 be connected output 5-2 and connect successively, the 3rd thermal element 2-3, the 3rd input 3-3, the 3rd connecting portion 4-3 connects successively with the 3rd output 5-3, described pedestal 1 also is provided with zero line input 10, zero line connecting portion 11 and zero line output 12, described zero line connecting portion 11 passes zero-sequence transformer 7, zero line connecting portion 11 1 ends are fixedly connected with the other end and are fixedly connected with zero line output 12 with zero line input 10, described zero line connecting portion 11 is the multiply annealed copper wire, the first thermal element 2-1, the second thermal element 2-2 of company and the 3rd thermal element 2-3 from left to right are arranged in order, first input end 3-1, the second input 3-2 and the 3rd input 3-3 from left to right are arranged in order, the first output 5-1, the second output 5-2 and the 3rd output 5-3 from left to right are arranged in order.

Claims (8)

1. residual current action breaker, comprise pedestal (1), among pedestal (1), be provided with thermal element (2), input (3), connecting portion (4), output (5), current transformer (6) and zero-sequence transformer (7), thermal element (2), input (3), connecting portion (4), output (5) connects successively, input (3) passes current transformer (6), connecting portion (4) passes zero-sequence transformer (7), thermal element (2), input (3) and output (5) have respectively wide (8) and leptoprosopy (9), wide (8) are mutually vertical with leptoprosopy (9), wide (8) area is greater than leptoprosopy (9) area, it is characterized in that: the two ends of described connecting portion (4) have respectively wide (8) and leptoprosopy (9), wide (8) of each end of connecting portion (4) and leptoprosopy (9) all are mutually vertical and wide (8) area greater than leptoprosopy (9) area, and wide (8) at connecting portion (4) two ends are in same plane with input (3) wide (4) and output (5) wide (8) respectively.
2. residual current action breaker according to claim 1, it is characterized in that: described input (3), connecting portion (4) and output (5) are one-body molded.
3. residual current action breaker according to claim 1 and 2, it is characterized in that: described connecting portion (4) comprises the first connecting portion (4-1), the second connecting portion (4-2) and the 3rd connecting portion (4-3), described the first connecting portion (4-1), be middle interconnecting piece (4-4) between the second connecting portion (4-2) and the 3rd connecting portion (4-3) two ends separately, the middle interconnecting piece (4-4) of the first connecting portion (4-1) is in the below of the middle interconnecting piece (4-4) of the second connecting portion (4-2), and the middle interconnecting piece (4-4) of the 3rd connecting portion (4-3) is in the right side of the middle interconnecting piece (4-4) of the second connecting portion (4-2).
4. residual current action breaker according to claim 1 and 2, it is characterized in that: described connecting portion is enclosed with insulating paper on (4).
5. residual current action breaker according to claim 3, it is characterized in that: described connecting portion is enclosed with insulating paper on (4).
6. residual current action breaker according to claim 1 and 2, it is characterized in that: described pedestal (1) also is provided with zero line input (10), zero line connecting portion (11) and zero line output (12), described zero line connecting portion (11) passes zero-sequence transformer (7), zero line connecting portion (11) one ends are fixedly connected with the other end and are fixedly connected with zero line output (12) with zero line input (10), described zero line connecting portion (11) is the multiply annealed copper wire.
7. residual current action breaker according to claim 3, it is characterized in that: described pedestal (1) also is provided with zero line input (10), zero line connecting portion (11) and zero line output (12), described zero line connecting portion (11) passes zero-sequence transformer (7), zero line connecting portion (11) one ends are fixedly connected with the other end and are fixedly connected with zero line output (12) with zero line input (10), described zero line connecting portion (11) is the multiply annealed copper wire.
8. residual current action breaker according to claim 4, it is characterized in that: described pedestal (1) also is provided with zero line input (10), zero line connecting portion (11) and zero line output (12), described zero line connecting portion (11) passes zero-sequence transformer (7), zero line connecting portion (11) one ends are fixedly connected with the other end and are fixedly connected with zero line output (12) with zero line input (10), described zero line connecting portion (11) is the multiply annealed copper wire.
CN 201320303186 2013-05-30 2013-05-30 Residual current operated circuit breaker Expired - Fee Related CN203260542U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320303186 CN203260542U (en) 2013-05-30 2013-05-30 Residual current operated circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320303186 CN203260542U (en) 2013-05-30 2013-05-30 Residual current operated circuit breaker

Publications (1)

Publication Number Publication Date
CN203260542U true CN203260542U (en) 2013-10-30

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Application Number Title Priority Date Filing Date
CN 201320303186 Expired - Fee Related CN203260542U (en) 2013-05-30 2013-05-30 Residual current operated circuit breaker

Country Status (1)

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CN (1) CN203260542U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105185665A (en) * 2015-09-07 2015-12-23 国网山东烟台市福山区供电公司 Intelligent residual current reclosing circuit breaker

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105185665A (en) * 2015-09-07 2015-12-23 国网山东烟台市福山区供电公司 Intelligent residual current reclosing circuit breaker

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20131030

Termination date: 20190530

CF01 Termination of patent right due to non-payment of annual fee