CN203103240U

CN203103240U - Low caloric power electric leakage circuit breaker rear conductor assembly

Info

Publication number: CN203103240U
Application number: CN2013200470633U
Authority: CN
Inventors: 钟方强; 董勇
Original assignee: HANGZHOU QIANLONG ELECTRIC CO Ltd
Current assignee: HANGZHOU QIANLONG ELECTRIC CO Ltd
Priority date: 2013-01-25
Filing date: 2013-01-25
Publication date: 2013-07-31
Anticipated expiration: 2023-01-25

Abstract

A low caloric power electric leakage circuit breaker rear conductor assembly is disclosed, comprising four copper sheets of zero phase, A phase, B phase, and C phase, wherein middle segments of the four copper sheets are gathered together and therefore can run through a via hole of a zero sequence mutual inductor (3); zero phase, A phase, B phase, and C phase are arranged in a parallel manner; two ends of zero phase, A phase, B phase, and C phase are respectively provided with wire connecting holes (1) and wire connecting column fixing holes (2); the middle segments of zero phase, A phase, and C phase are bent to be perpendicular to two end segments of zero phase, A phase, and C phase, and therefore the middle segments of zero phase, A phase, and C phase are laterally and lengthwise U-shaped; a u-shaped segment of A phase is sleeved with an outer side of a U-shaped segment of zero phase, the u-shaped segments of A phase and zero phase are bent together toward the right side, a U-shaped segment of C phase is bent toward the left side, and B phase is a flat copper sheet; at U-shaped bottom segments of the copper sheets of zero phase, A phase and C phase, the middle segment of B phase runs through the via hole of the zero sequence mutual inductor; and the four copper sheets ranked in order of length are zero phase, C phase, A phase, and B phase. The rear conductor assembly is characterized in that the four copper sheets of zero phase, A phase, B phase and C phase are improved in arrangement, modeling, and length; the problem that caloric power of C phase can easily exceed the standard is solved; and electric energy and a copper material consumption amount are lowered on the whole.

Description

Conductor assembly after the residual current circuit breaker of lower calorific value

Technical field

The utility model relates to the back conductor sub-assembly of close leading-out terminal one side in a kind of residual current circuit breaker.

Background technology

Each associated components of residual current circuit breaker is fixed in the base of shell, four leads of three-phase four-wire system are after latter half of the compiling of base, from left to right order be zero phase, A phase, B mutually and C mutually, be combined into the form of assembly with four copper sheets, pass zero-sequence transformer, again launch again, be connected with four binding posts of leading-out terminal respectively.In the prior art after four conductor assembly all be that two ends flatten, interlude is bent into the perpendicular U font of side, and zero is isometric with C copper sheet mutually, A is also isometric with B copper sheet mutually, but lacks mutually with C than zero.As everyone knows, the copper sheet of energising can generate heat because of the existence of resistance, and long more caloric value is big more, so A and B caloric value mutually be less than the C phase, and as A, B, when the C three-phase current is impartial, the electric current of zero phase is zero, and when unequal, the current value of zero phase is also very little.Therefore, heat＜the 50K of the shell side, conductor place of standard code, leading-out terminal heat＜80K principal contradiction go out on C phase copper sheet, improve the trend and the length of this back conductor assembly of four copper sheets, especially change the length of C phase copper sheet, it is effective and easy approach of avoiding its caloric value to exceed standard, to this, do not see as yet that so far the people gets ahead of others.

The utility model content

The technical problems to be solved in the utility model provides conductor assembly after a kind of residual current circuit breaker of lower calorific value.

Solve this technical problem and adopt following technical scheme: conductor assembly after the residual current circuit breaker of this lower calorific value, comprise the two ends section have respectively wiring hole and binding post fixing hole and arrangement parallel to each other zero mutually, the A phase, B gathers to pass the copper sheet of zero-sequence transformer through hole in four stage casings mutually with C mutually, zero phase, the A phase, each erects into the U font with its two ends 90 ° of bending rear sides of section work the stage casing of C phase, A phase U font section is enclosed within outside the zero phase U font section, bend towards the right side jointly, C phase U font section bends towards a left side, B is flat copper sheet mutually, its stage casing section at the bottom of the U word of the U of all the other three-phase copper sheets font is passed, and the length of four copper sheets is followed successively by zero phase from long to short, the C phase, the A phase, the B phase.

The beneficial effects of the utility model are at first to concentrate on crucial points to have shortened the length of C phase copper sheet, solve this phase conductor the problem that caloric value exceeds standard takes place easily, have shortened the length of B phase copper sheet simultaneously, make not only energy-conservation but also copper-saving of whole back conductor assembly.

Description of drawings

Fig. 1 and Fig. 2 are respectively prior art and back of the present utility model conductor assembly structural representation.

Fig. 3 and Fig. 4 are respectively prior art and the profile of back conductor assembly of the present utility model in zero-sequence transformer.

Fig. 5 and Fig. 6 are respectively prior art and the installment state figure of back conductor assembly of the present utility model in base.

Embodiment

The utility model is described in detail below in conjunction with embodiment and with reference to accompanying drawing: prior art and the utility model of back conductor assembly the trend of four copper sheets, arrange with the change of length very clear in accompanying drawing 1 and 2,3 and 4,5 and 6 contrast.As Fig. 2,4, shown in 6, conductor assembly after the residual current circuit breaker of this lower calorific value, comprise the two ends section have respectively wiring hole 1 and binding post fixing hole 2 and arrangement parallel to each other zero mutually, the A phase, B gathers to pass the copper sheet of zero-sequence transformer 3 through holes in four stage casings mutually with C mutually, zero phase, the A phase, each erects into the U font with its two ends 90 ° of bending rear sides of section work the stage casing of C phase, A phase U font section is enclosed within outside the zero phase U font section, bend towards the right side jointly, C phase U font section bends towards a left side, B is flat copper sheet mutually, its stage casing section at the bottom of the U word of the U of all the other three-phase copper sheets font is passed, and the length of four copper sheets is followed successively by zero phase from long to short, the C phase, the A phase, the B phase.See Fig. 2, four holes of this back conductor assembly upside from left to right respectively the connecting to neutral line with the A that preceding is connected with the residual current circuit breaker associated components mutually, B phase, the C wiring hole 1 of three phase lines mutually, stage casing bending side is erected and the place, lane is overcoat zero-sequence transformer 3 places, four holes of downside are residual current circuit breaker outlet column fixing hole 2, distinguish connecting to neutral phase, A phase, B and C phase line mutually from left to right.

Claims

1. conductor assembly after the residual current circuit breaker of a lower calorific value, comprise the two ends section have respectively wiring hole (1) and binding post fixing hole (2) and arrangement parallel to each other zero mutually, the A phase, B gathers to pass the copper sheet of zero-sequence transformer (3) through hole in four stage casings mutually with C mutually, it is characterized in that zero phase, the A phase, each erects into the U font with its two ends 90 ° of bending rear sides of section work the stage casing of C phase, A phase U font section is enclosed within outside the zero phase U font section, bend towards the right side jointly, C phase U font section bends towards a left side, B is flat copper sheet mutually, its stage casing section at the bottom of the U word of the U of all the other three-phase copper sheets font is passed, and the length of four copper sheets is followed successively by zero phase from long to short, the C phase, the A phase, the B phase.