CN101206976B - Circuit breaker - Google Patents
Circuit breaker Download PDFInfo
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- CN101206976B CN101206976B CN2007101998922A CN200710199892A CN101206976B CN 101206976 B CN101206976 B CN 101206976B CN 2007101998922 A CN2007101998922 A CN 2007101998922A CN 200710199892 A CN200710199892 A CN 200710199892A CN 101206976 B CN101206976 B CN 101206976B
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Abstract
The invention relates to a circuit brake, wherein, a primary conductor can be mounted on a circular zero-phase converter easily without thickening the shell of the brake; and the insulation of the primary conductor can be increased. Three load side terminal connectors (14) and power supply side terminal connectors (13) are respectively arrayed at the front end and the rear end of the brake shell (4) on the upper and lower directions. The circular zero-phase converter (41) is arranged on a through hole (31) at the rear side of an isolator (21), facing the left and right directions of the brake shell (4). The isolator (21) is moved to an open position from a closed position so as to shut off the circuit when the zero-phase converter (41) detects any leakage. Three primary conductors are bent and mounted on the zero-phase converter (41) after passing through the through hole (31). One end is electrically connected with the power supply side terminal connectors (13), while the other end is electrically connected with the load side terminal connectors (14) under the state that the two ends of the primary conductor are connected with the left and right sides of the zero-phase converter (41).
Description
Technical field
The present invention relates to possess the circuit breaker of electric leakage break function.
Background technology
Be well known that in the past in the inside of decoupler housing to be provided with zero phase current transformer, and when zero phase current transformer detects electric leakage, allowed release mechanism move and the circuit breaker of open circuit.For example in patent documentation 1, put down in writing in order Primary Conductor to be installed easily in the zero phase current transformer of ring-type, Primary Conductor is separated and be assembled into technology in the inserting hole of zero phase current transformer.In patent documentation 2, put down in writing on the two sides of zero phase current transformer two insulation walls have been installed, made the mains side end of Primary Conductor and load side end technology in the thickness direction insulation of zero phase current transformer by insulation wall.
Patent documentation 1: the spy opens the 2003-162952 communique
Patent documentation 2: the spy opens flat 6-310018 communique
Summary of the invention
The problem that invention will solve
But, according to the prior art of patent documentation 1, be that Primary Conductor is separated and is installed on the zero phase current transformer, so taking time and energy aspect the assembling of circuit breaker, this is the problem of its existence.According to the prior art of patent documentation 2, be on the two sides of zero phase current transformer, insulation wall to be installed, thereby the zero phase current transformer thickening, it is big that the decoupler housing becomes, and this is the problem of its existence.
To this, the purpose of this invention is to provide Primary Conductor can easily be installed on the zero phase current transformer of ring-type, and do not thicken the decoupler housing, can improve the circuit breaker of the insulating properties of Primary Conductor.
Be used to solve the scheme of problem
In order to solve above-mentioned problem, the present invention is a kind of circuit breaker, be provided with power supply side terminal joint, load side clamped nipple and zero phase current transformer in the inside of decoupler housing, many Primary Conductor have been installed on zero phase current transformer, when zero phase current transformer detects electric leakage, make release mechanism action and open circuit is characterized in that having adopted following formation.
(1) a kind of circuit breaker, it is characterized in that, zero phase current transformer possesses inserting hole at the central part of ring bodies, make above-mentioned Primary Conductor by after the inserting hole, it is carried out bending machining and attaches it on the zero phase current transformer, and the both ends of Primary Conductor are electrically connected with power supply side terminal joint and load side clamped nipple with the state that engages with the two sides of zero phase current transformer.
(2) circuit breaker of above-mentioned (1) record is characterized in that, is provided with the both ends that the make Primary Conductor insulation division in the thick direction insulation of zero phase current transformer on the outer peripheral face of zero phase current transformer highlightedly.
(3) circuit breaker of above-mentioned (1) or (2) record is characterized in that, is provided with the wall part that two Primary Conductor making adjacency are isolated at the Zhou Fangxiang of zero phase current transformer on the outer peripheral face of zero phase current transformer highlightedly.
(4) circuit breaker of above-mentioned (1), (2) or (3) record is characterized in that, has formed the projection in the inserting hole that is inserted into zero phase current transformer on the decoupler housing, is isolated the pars intermedia of Primary Conductor at the Zhou Fangxiang of zero phase current transformer by projection.
(5) circuit breaker of any one record in above-mentioned (1)～(4) is characterized in that, is provided with line part at the periphery of zero phase current transformer, and an end of Primary Conductor is by engaging with the side face of zero phase current transformer in the bending machining of line part.
(6) circuit breaker of any one record in above-mentioned (1)～(5), it is characterized in that, a plurality of load side clamped nipples and power supply side terminal joint have been arranged in the leading section and the rearward end of decoupler housing at above-below direction respectively, so that inserting hole is provided with zero phase current transformer towards the state of the left and right directions of decoupler housing.
The invention effect
Decoupler in a circuit according to the invention is the Primary Conductor bending and be installed on the zero phase current transformer, thereby does not cut apart Primary Conductor and just can make its both ends easily be adjacent to the two sides of zero phase current transformer.Therefore, very unfertile land constitutes the assembling part of zero phase current transformer and Primary Conductor, can promote the thin smallization of decoupler housing, and this is its effect.Also have, be provided with the insulation division of the both ends insulation that makes Primary Conductor highlightedly and isolate the wall part of the Primary Conductor of adjacency on the periphery of zero phase current transformer, thereby do not thicken the insulation property that the decoupler housing just can improve Primary Conductor, this is its effect.
Description of drawings
Fig. 1 is the outward appearance perspective view of the circuit breaker of expression one embodiment of the present invention.
Fig. 2 is that half of taking off the decoupler housing represented the perspective view of internal mechanism.
The right hand view of the internal mechanism when Fig. 3 is the expression open circuit.
Fig. 4 is the perspective view that the zero phase current transformer of expression decoupler housing is provided with portion.
Fig. 5 is the assembling instruction figure of zero phase current transformer and Primary Conductor.
Fig. 6 is the decomposition diagram of zero phase current transformer and Primary Conductor.
Fig. 7 is the perspective view of zero phase current transformer monomer.
Fig. 8 is the perspective view that is illustrated in the order of the Primary Conductor that upside is installed on the zero phase current transformer.
Fig. 9 is the perspective view that is illustrated in the order of the Primary Conductor that the front side is installed on the zero phase current transformer.
Figure 10 is the perspective view that is illustrated in the order of the Primary Conductor that rear side is installed on the zero phase current transformer.
Symbol description
1 circuit breaker
2 power supply side terminals
3 load side terminals
4 decoupler housings
5 operating grips
13 power supply side terminal joints
14 power supply side terminal joints
21 separators
23 open-close mechanism sections
31 inserting holes
32a first insulation division
33 second insulation divisions
34a the 3rd insulation division
The 34b wall part
35 projections
39 parts of triping
41 zero phase current transformers
The 41a ring bodies
41b, 41c line part
42 bimetal leafs
43 movable electromagnetic plates
45,46,47 Primary Conductor
Embodiment
Below, an execution mode that the present invention is embodied as the circuit breaker that single-phase three-wire formula circuit uses is described with reference to accompanying drawing.The outward appearance of Fig. 1 indication circuit decoupler, Fig. 2 is that half of taking off the decoupler housing represented internal mechanism, the internal mechanism when Fig. 3 represents open circuit.Fig. 4 is provided with portion with the current transformer of the state representation decoupler housing that taken out zero phase current transformer, and Fig. 5 is to have assembled the state representation zero phase current transformer of Primary Conductor, and Fig. 6 is to have decomposed the state representation zero phase current transformer of Primary Conductor.The formation of the following side of Fig. 7 (a) expression zero phase current transformer, the formation of the rear side of Fig. 7 (b) expression zero phase current transformer.Fig. 8, Fig. 9, Figure 10 are illustrated in the order that Primary Conductor is installed on the zero phase current transformer.In addition, in the following description, with the front of circuit breaker face, with the face of the back side, with the face of right flank, with the face of left surface as the inboard as the table side as the right side as the left side of Fig. 1.
As shown in Figure 1, the circuit breaker 1 of this execution mode possesses four jiaos of decoupler housings 4 that approach box-shapeds of the degree of thickness 10mm.Decoupler housing 4 makes up plastic pair of right and left housing sheets and constitutes, and the back side is vertical, and the front then forms the oblique shape that past more upside retreats more.On the back side and front of decoupler housing 4, three power supply side terminals 2 (P1, P2, P3) and load side terminal 3 (L1, L2, L3) are arranged in straight line at above-below direction respectively.On on decoupler housing 4, direction is provided with the moving operating grip 5 that circuit between power supply side terminal 2 and the load side terminal 3 is carried out opening and closing operations of armrest rotationally forwards, backwards.
As shown in Figure 1, 2, three power supply side terminals 2 are arranged in parallel at above-below direction with the back side of decoupler housing 4, and the terminals P 1 of upside is as the neutral pole terminal, and the terminals P 2 of central authorities and the terminals P of downside 3 are as the voltage pole terminal.Each terminal possesses the power supply side terminal joint 13 of C font in the rearward end inboard of decoupler housing 4, be as long as insert the plug-in type formation that the stub in the distribution board just can connect simply.Load side terminal 3 is arranged in above-below direction abreast sideling with the front of decoupler housing 4, and the terminal L2 of central authorities is as the neutral pole terminal, and terminal L1, L3 are as the voltage pole terminal up and down.Each terminal possesses load side clamped nipple 14 in the leading section inboard of decoupler housing 4, is as long as insert the fast eliminant formation that the load distribution just can connect simply in terminal hole 12.
In addition, for the obsolete terminal in three load side terminals 3 (for example, neutral pole terminal L2), in order to prevent the intrusion of mis-wired or dust, by terminal cover 16 obstructions of slidingtype.In the upper front end of decoupler housing 4, be provided with the relieving rod 17 of the constraint of 14 pairs of loads of side terminal joint distribution that is used to discharge.
As Fig. 2, shown in Figure 3, near the rear side of load side clamped nipple 14, in the inside of decoupler housing 4, can be sideling up and down direction be provided with separator 21 movably, it is energized upward by disc spring 38.The tubular that separator 21 is pressed lengthwise by synthetic resin in the orientation of load side clamped nipple 14 forms, the built-in switching contact 9 at three places of length direction.Opening and closing contact 9 is made of last bonding fixed contact 11 of the 14a of protruding end portion of load side clamped nipple 14 and the moving contact 10 that is electrically connected with power supply side terminal joint 13.And, but moving contact 10 one are installed on separator 21 movably, and separator 21 can closed closing position (down position shown in Figure 2) and opening open position (lifting position shown in Figure 3) lifting that opens and closes contact 9 of switching contact 9.
At the rear side of separator 21, be provided with zero phase current transformer 41 in the bottom of decoupler housing 4.Disposed printed base plate 20 on the top of decoupler housing 4.At the downside of printed base plate 20, horizontally set the electromagnetism trip gear 8 of action when electric leakage takes place, on printed base plate 20, formed the circuit (diagram is omitted) that is used to make 8 actions of electromagnetism trip gear.The output that this circuit comprises based on zero phase current transformer 41 detects the electric leakage detecting circuit of electric leakage and makes doubtful leakage current mobile test circuit in the electric leakage detecting circuit, and test circuit is connected/cut off by Test Switchboard 51 by the testing buttons 6 above the decoupler housing 4.And,, arrange the movable electromagnetic plate 43 of the short circuit current induction of flowing in being provided with circuit and to the bimetal leaf of overcurrent induction 42 each two at the above-below direction of decoupler housing 4 at the downside of electromagnetism trip gear 8.
The built-in switching mechanism portion 23 in the upper end of separator 21, the parts 39 of triping that can move at above-below direction downside being provided with of its lock 24.The parts 39 of triping form more longways in the orientation (above-below direction) of power supply side terminal joint 13, are energized downwards by disc spring 40.The movable end of electromagnetism trip gear 8, movable electromagnetic plate 42 and bimetal leaf 43 and the back side butt of the parts 39 of triping, when in circuit, having electric leakage, short circuit current or overcurrent to take place, each actuator 8,42,43 makes the parts 39 of triping move to the top, make the lock 24 of the upper end portion of abutting part trip switch mechanism 23 of the parts 39 of triping, make separator 21 rise to open position from closing the position.In addition, in this embodiment, constitute the release mechanism of open circuit by separator 21, switching mechanism portion 23, the parts 39 of triping, electromagnetism trip gear 8, bimetal leaf 42, movable electromagnetic plate 43 etc.
As shown in Figure 4, disposed the separator 21 and the parts 39 of triping in the front and back of decoupler housing 4, formed inverted v-shaped space 30 between the two with vis-a-vis state.The downside that inverted v-shaped space 30 forms past more decoupler housing 4 launches more forwards, backwards, in the bottom in this space 30 so that the inserting hole 31 of central part is provided with zero phase current transformer 41 (with reference to Fig. 2) towards the state of the left and right directions of decoupler housing 4.And, on the medial surface of left and right sides housing sheet (Fig. 4 only shows left side housing 4a), formed the projection of inserting to inserting hole 31 35, under the state of having assembled decoupler housing 4, zero phase current transformer 41 is assembled in the given position in inverted v-shaped space 30 by projection 35.
As Fig. 5, shown in Figure 6, zero phase current transformer 41 possesses with synthetic resin and forms circular ring bodies (insulation shell) 41a, built-in secondary winding in ring bodies 41a (diagram is omitted), the bared end of secondary winding (diagram is omitted) is electrically connected with electric leakage detecting circuit on the printed base plate 20.Inserting hole 31 is formed at the central part of ring bodies 41a, and three Primary Conductor 45,46,47 that form the part of single-phase three-wire formula circuit are inserted the inboard that has led to inserting hole 31, are installed on zero phase current transformer 41 by the bending machining of inserting after leading to.Primary Conductor the 45,46, the 47th bends metal band plate and forms, mains side end 45a, 46a, 47a are electrically connected with the conductor plate 13a of power supply side terminal joint 13 by flexible lead 27 (with reference to Fig. 3), and load side end 45c, 46c, 47c are electrically connected with load side clamped nipple 14 by flexible lead 28 and switching contact 9.
Three tab 35a (with reference to Fig. 4) on the outer peripheral face of the projection 35 of decoupler housing 4, have been formed with equal angles radially, by each tab 35a pars intermedia 45b, the 46b of Primary Conductor 45,46,47,47b are isolated at the Zhou Fangxiang of zero phase current transformer 41, and the circumference trisection of zero phase current transformer 41 direction position (with reference to Fig. 3).And, formed tab 35a with the most advanced and sophisticated length that contacts with the inner peripheral surface of inserting hole 31, when having assembled left and right sides housing sheet, with the state that do not rock zero phase current transformer 41 and Primary Conductor 45,46,47 are positioned out the interior given position of device housing 4 respectively.
As Fig. 5, Fig. 6, shown in Figure 7, outer peripheral face top at zero phase current transformer 41, to the diameter side outside integrally formed highlightedly possess the first insulation division 32a of rib 32b, by the first insulation division 32a mains side end 45a of the Primary Conductor 45 of upside and load side end 45c are isolated at the thickness direction (left and right directions of decoupler housing 4) of zero phase current transformer 41.From the outer peripheral face top of zero phase current transformer 41 in the scope of rear portion expansion, the left surface that makes zero phase current transformer 41 is expanded laterally and outstandingly integratedly is provided with the second flange shape insulation division 33, by second insulation division 33 the mains side end 47a of the Primary Conductor 47 of rear side and load side end 47c thickness direction isolation at zero phase current transformer 41.
In the bottom of zero phase current transformer 41, be wholely set L font parts 34 along the bottom surface of decoupler housing 4 in front and back with extending, formed the three insulation division 34a vertical and the wall part 34b of level with this parts 34.The leading section of the 3rd insulation division 34a is outstanding to the diametric(al) outside from the outer peripheral face of zero phase current transformer 41, isolates the mains side end 46a and the load side end 46c of the Primary Conductor 46 of downside at the thickness direction of zero phase current transformer 41.Wall part 34b is rearward outstanding from outer peripheral face with the width identical with the thickness of ring bodies 41a, isolates mains side end 46a, the 47a of two Primary Conductor 46,47 of adjacency at the Zhou Fangxiang of zero phase current transformer 41.
Also have,, formed line part 41b, 41c at its periphery two places at the right flank of zero phase current transformer 41.Line part 41b at downside is bent into the right angle to the mains side end 46a of Primary Conductor 46, and it is engaged with the following lateral circle surface of zero phase current transformer 41.Mains side end 47a in the line part 41c of rear side bending Primary Conductor 47 makes it engage with the back lateral circle surface of zero phase current transformer 41.In addition, pars intermedia 45b, 46b, 47b and the periphery thereof of Primary Conductor 45,46,47 are covered by plastic insulating coating.
Each Primary Conductor 45,46,47 is installed on zero phase current transformer 41 with Fig. 8～order shown in Figure 10.As shown in Figure 8, the Primary Conductor 45 of upside is to make load side end 45c by inserting hole 31, and mains side end 45a is engaged with the right flank of zero phase current transformer 41, load side end 45c is bent upward and its left surface with zero phase current transformer 41 is engaged.As shown in Figure 9, the Primary Conductor 46 of front side is to make load side end 46c by inserting hole 31, mains side end 46a is engaged with the following and right flank of zero phase current transformer 41, load side end 46c is forwards bent and its left surface with zero phase current transformer 41 is engaged.As shown in figure 10, the Primary Conductor 47 of rear side is to make mains side end 47a by inserting hole 31, load side end 47c is engaged with the left surface of zero phase current transformer 41, mains side end 47a rearward bent and after its right flank with zero phase current transformer 41 is engaged, again to the left bending and its side face with zero phase current transformer 41 is engaged.
Secondly, the action of the circuit breaker 1 that constitutes in a manner described is described.When circuit is in "on" position (with reference to Fig. 2), separator 21 drops to by means of switching mechanism portion 23 and closes position (down position), opens and closes contact 9 and closes, and operating grip 5 is poured on the horizontal level that engages above with decoupler housing 4.Under this "on" position, have electric leakage to take place in the circuit, based on the output of zero phase current transformer 41, the electric leakage detecting circuit on the printed base plate 20 will detect electric leakage, electromagnetism trip gear 8 makes the parts 39 of triping rise the lock 24 of parts 39 portions of trip switch mechanism 23 of triping.Like this, separator 21 rises to open position by the energizing power of disc spring 38, opens and closes contact 9 and opens, and operating grip 5 erects (with reference to Fig. 3) above decoupler housing 4.
When having overcurrent or short circuit current to flow in circuit, bimetal leaf 42 or movable electromagnetic plate 43 similarly moves with electromagnetism trip gear 8, make separator 21 rise to open position and open switching contact 9.When under this off-state, making circuit return "on" position, push over operating grip 5 to horizontal level, separator 21 is dropped to close the position and close and open and close contact 13 from set-up positions.On the other hand, when the motion test of electromagnetism trip gear 8, press testing button 6, the most advanced and sophisticated 51a of Test Switchboard 51 just contact with contact rod 19 on the printed base plate 20, connects test circuit, makes doubtful leakage current mobile in the electric leakage detecting circuit.Remove pushing of testing button 6, lean on the elastic recovering force of Test Switchboard 51 to make most advanced and sophisticated 51a leave contact rod 19, cut off test circuit.In addition, under the state that test circuit is connected, when separator 21 rose to open position, the projection 52 on the separator 21 was drawn back Test Switchboard 51 most advanced and sophisticated 51a from contact rod 19, cuts off test circuit forcibly.
According to the circuit breaker 1 of this execution mode, can obtain following effect.
(a) make three Primary Conductor 45,46,47 by after the inserting hole 31, it is carried out bending machining, it is installed on the zero phase current transformer 41, thereby can makes mains side end and load side end be adjacent to the left and right sides face of zero phase current transformer 41.
(b) because Primary Conductor 45,46,47 has been adjacent to, so can eliminate the part outstanding, the assembling part of attenuate zero phase current transformer 41 and Primary Conductor 45,46,47 and it is arranged in the slim decoupler housing 4 of degree of thickness 10mm compactly from the left and right sides of zero phase current transformer 41.
(c) particularly, make and insert the logical hole 31 that makes towards about the decoupler housing 4 and be provided with zero phase current transformer 41, thereby can be arranged in straight line to three load side clamped nipples 14 at above-below direction at the leading section of slim decoupler housing 4, in rearward end three power supply side terminal joints 13 are arranged in straight line at above-below direction, not only thin but also little ground forming circuit decoupler 1 integral body.
(d) isolate the mains side end 45a and the load side end 45c of the Primary Conductor 45 of upside about the first insulation division 32a on the outstanding top that is arranged on zero phase current transformer 41, thereby can guarantee the insulation between the two ends of Primary Conductor 45.
(e) isolate the mains side end 46a and the load side end 46c of the Primary Conductor 46 of downside about the 3rd insulation division 34a of the outstanding bottom that is arranged on zero phase current transformer 41, thereby can guarantee the insulation between the two ends of Primary Conductor 46.
(f) outstanding second insulation division about 33 that is arranged on the rear portion of zero phase current transformer 41 has been isolated the mains side end 47a and the load side end 47c of the Primary Conductor 47 of rear side, thereby can guarantee the insulation between the two ends of Primary Conductor 47.
(g) three insulation division 32a, 34a, 33 are outstanding separately is arranged on the outer peripheral face of zero phase current transformer 41, thereby does not thicken the insulation property that decoupler housing 4 just can improve Primary Conductor 45,46,47.
(h) two Primary Conductor 46,47 that are connected with clamped nipple 13 as two power supply side terminal P2, P3 of voltage pole are isolated at the Zhou Fangxiang of zero phase current transformer 41 by wall part 34b, thereby can prevent voltage pole contact each other really, improve the reliability of circuit breaker 1.
(i) periphery at zero phase current transformer 41 has formed line part 41b, 41c, thereby can bend mains side end 46a, the 47a of two Primary Conductor 46,47 with correct direction simply.
(j) particularly for the Primary Conductor 47 of rear side, the back lateral circle surface of itself and zero phase current transformer 41 is adjacent to, can in the narrow space of the zero phase current transformer 41 and the parts 39 of triping, easily be connected the flexible lead 27 of mains side.
The invention is not restricted to above-mentioned execution mode,, can suitably change shape, the formation of each several part without departing from the spirit and scope of the invention and implement as following illustrative.
(1) is vertically formed the front of decoupler housing 4, load side clamped nipple 14 and separator 21 is set abreast, the separator 21 and the parts 39 of triping are faced toward parallel to each other, zero phase current transformer 41 is set between the two with the front.
(2) the polygon prism shape of pressing triangular prism or quadrangular forms the projection 35 that the inserting hole 31 to zero phase current transformer 41 inserts, and is isolated or is located Primary Conductor by the angle of projection 35.
(3) the present invention is applicable to the circuit breaker that single-phase 2 line formula circuit, three-phase circuit are used, increases and decreases the quantity of Primary Conductor according to the pattern of circuit.
(4) the present invention is applicable to circuit breaker that does not possess the short circuit current break function or the circuit breaker that does not possess the overcurrent break function.
Claims (5)
1. a circuit breaker is provided with power supply side terminal joint, load side clamped nipple and zero phase current transformer in the inside of decoupler housing, and many Primary Conductor have been installed on zero phase current transformer, when zero phase current transformer detects electric leakage, make release mechanism action and open circuit is characterized in that
Arranged a plurality of above-mentioned load side clamped nipples and power supply side terminal joint in the leading section and the rearward end of decoupler housing at above-below direction respectively,
Above-mentioned zero phase current transformer so that the inserting hole that the central part of ring bodies possesses be provided with towards the state of the left and right directions of decoupler housing,
Make above-mentioned Primary Conductor by after the inserting hole, it is carried out bending machining and attaches it on the zero phase current transformer, and the both ends of Primary Conductor are electrically connected with above-mentioned power supply side terminal joint and load side clamped nipple with the state that engages with the two sides of zero phase current transformer.
2. circuit breaker as claimed in claim 1 is characterized in that, is provided with the both ends that the make Primary Conductor insulation division in the thick direction insulation of zero phase current transformer on the outer peripheral face of above-mentioned zero phase current transformer highlightedly.
3. circuit breaker as claimed in claim 1 or 2 is characterized in that, is provided with the wall part that two Primary Conductor making adjacency are isolated at the Zhou Fangxiang of zero phase current transformer on the outer peripheral face of above-mentioned zero phase current transformer highlightedly.
4. circuit breaker as claimed in claim 1 or 2 is characterized in that, has formed the projection in the inserting hole that is inserted into zero phase current transformer on above-mentioned decoupler housing, is isolated the pars intermedia of Primary Conductor at the Zhou Fangxiang of zero phase current transformer by projection.
5. circuit breaker as claimed in claim 1 or 2 is characterized in that, is provided with line part at the periphery of above-mentioned zero phase current transformer, and an end of Primary Conductor is by engaging with the side face of zero phase current transformer in the bending machining of line part.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006-337517 | 2006-12-14 | ||
| JP2006337519 | 2006-12-14 | ||
| JP2006-337519 | 2006-12-14 | ||
| JP2006337517 | 2006-12-14 | ||
| JP2006337519A JP4938434B2 (en) | 2006-12-14 | 2006-12-14 | Circuit breaker |
| JP2006337517A JP4994820B2 (en) | 2006-12-14 | 2006-12-14 | Circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101206976A CN101206976A (en) | 2008-06-25 |
| CN101206976B true CN101206976B (en) | 2011-11-16 |
Family
ID=39567064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101998922A Active CN101206976B (en) | 2006-12-14 | 2007-12-14 | Circuit breaker |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4994820B2 (en) |
| CN (1) | CN101206976B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5517566B2 (en) * | 2009-11-05 | 2014-06-11 | 三菱電機株式会社 | Earth leakage breaker |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1218271A (en) * | 1997-11-26 | 1999-06-02 | 河村电器产业株式会社 | Circuit breaker |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0581995A (en) * | 1991-09-20 | 1993-04-02 | Hitachi Ltd | Breaker |
| JP3275441B2 (en) * | 1993-04-22 | 2002-04-15 | 三菱電機株式会社 | Earth leakage breaker |
| JP4502318B2 (en) * | 2004-06-02 | 2010-07-14 | 河村電器産業株式会社 | Earth leakage breaker |
| JP2006032319A (en) * | 2004-06-16 | 2006-02-02 | Kawamura Electric Inc | Circuit breaker |
-
2006
- 2006-12-14 JP JP2006337517A patent/JP4994820B2/en active Active
-
2007
- 2007-12-14 CN CN2007101998922A patent/CN101206976B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1218271A (en) * | 1997-11-26 | 1999-06-02 | 河村电器产业株式会社 | Circuit breaker |
Non-Patent Citations (1)
| Title |
|---|
| JP平8-321245A 1996.12.03 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101206976A (en) | 2008-06-25 |
| JP4994820B2 (en) | 2012-08-08 |
| JP2008152974A (en) | 2008-07-03 |
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