CN1101456A - Differential protecting device with unit with detecting function - Google Patents
Differential protecting device with unit with detecting function Download PDFInfo
- Publication number
- CN1101456A CN1101456A CN 94102624 CN94102624A CN1101456A CN 1101456 A CN1101456 A CN 1101456A CN 94102624 CN94102624 CN 94102624 CN 94102624 A CN94102624 A CN 94102624A CN 1101456 A CN1101456 A CN 1101456A
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- differential protection
- housing
- differential
- magnet ring
- base
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- 230000004224 protection Effects 0.000 claims abstract description 66
- 230000005405 multipole Effects 0.000 claims abstract description 15
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- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
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- 230000005611 electricity Effects 0.000 claims 2
- 238000004804 winding Methods 0.000 description 22
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- 230000001276 controlling effect Effects 0.000 description 7
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- 239000012774 insulation material Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 108010022579 ATP dependent 26S protease Proteins 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000005267 amalgamation Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
- H01H83/144—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection with differential transformer
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/0207—Mounting or assembling the different parts of the circuit breaker
- H01H2071/0242—Assembling parts of a circuit breaker by using snap mounting techniques
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/0207—Mounting or assembling the different parts of the circuit breaker
- H01H71/0221—Majority of parts mounted on central frame or wall
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Breakers (AREA)
- Filters And Equalizers (AREA)
- Electromagnets (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
Differential protection unit which can be associated with a multi-pole circuit breaker in order together to constitute a differential circuit breaker. This unit comprising: a housing consisting of a lower half-housing (14A) and an upper half-housing (14B) capable together of enclosing various active elements of the differential protection unit, these various active elements constituting at least: a set of connections (22); a torus with a coil(30); and a circuit-breaking control mechanism (34). According to the invention, a chassis is provided on which the said active elements (22, 34) are fixed, together forming a rigid functional subassembly (16); it results therefrom that the said functional subassembly (16) can be connected to the differential circuit breaker so as to be able to carry out a functional test of the functional subassembly (16) while being able to have access to at least some of the said active elements (22, 34).
Description
What the present invention related generally to is a kind of differential protection, and this device all is used with multipole switch usually.The combination of this kind multipole switch and differential protection just constituted people the differential switch often said.
Traditional differential protection generally all comprises a housing, is equipped with to make the needed various mechanical part of this device operate as normal, electric component and necessary electronic components and parts in this housing.In this housing; for example can put into the coupling assembling that forms the conductivity path; can dispose the circuit that constitutes each utmost point switch; and be positioned on specially around the above-mentioned conductivity circuit; in order to survey the coiling magnet ring of differential current; the controlling organization that opens circuit also can be installed be used for controlling disconnection action in the multipole switch of combining with above-mentioned differential protection, this control is to realize when responding the electric parameter that aforementioned coiling magnet ring produces.Other element that in this housing, also comprises some, such as the Electronic Control plug-in unit, power insert, or the like.
Just be for the shortcoming of some known differential protection maximums that this adopted up till now: differential protection should install fully and connect before can be tested with multipole switch.If found dysfunction in the test, just be difficult to even may not determine the fault point of dysfunction, because all being enclosed in device case, all elements of differential protection suffered.
On the other hand, the housing of extensive use all is to seal with non-removable member, for example rivet, gummed part, thermal deformation part or the like.In this case, be difficult to the defective differential protection of dismounting, also the reason of impossible discrimination machine dysfunction.
In addition, be in operation and often need carry out electric test distribution panelboard.These examination requirementses were kept apart each electronic section before check.In known differential switch, must dismantle the electronic package in each differential protection or carry out some, so that reach the purpose that electronic package is all disconnected than complicated operations.
Purpose of the present invention mainly is to propose a kind of newly-designed differential protection, makes people test before can be in the active component flush mounting housing of described differential protection.
Another object of the present invention also is: this differential protection of proposition can also can be kept apart each electronic section in the differential protection before the distribution panelboard in this device is tested with comparalive ease.
Thereby The present invention be more particularly directed to a kind of can with the differential protection of multipole switch combination; so that constitute a kind of differential switch together; this differential protection comprises a coupling assembling; it has formed the conductivity circuit of multipole switch different poles; comprise the coiling magnet ring; it is configured in above-mentioned conductivity circuit on every side so that survey differential current, also comprises the controlling organization that opens circuit, the action of opening circuit when it is used for being controlled at the electric parameter that responds above-mentioned coiling magnet ring generation in the multipole switch.
According to a principal character of the present invention, differential protection also comprises a base in addition, and above-mentioned active component all is fixed on this base, and they have formed a firm functional part jointly simultaneously; Can reach a conclusion thus, the above-mentioned functions parts can be connected with differential switch so that can carry out the functional test of functional part, subsequently ought be wherein some described active component at least, when described functional part obtains the satisfied assessment of its function after functional test, can be enclosed in the above-mentioned housing.
According to one embodiment of the present invention, above-mentioned base by first die-cast plastic at the bottom of at the bottom of part and second die-cast plastic part constitute, part engages with first end part at the bottom of this second.
According to another embodiment of the invention, above-mentioned first formed under connecting state jointly with second base member: the similar shell that centers on the coiling magnet ring fully; Be in the path that the wound core center is separated out, be used to allow above-mentioned conductivity link tester mistake; The insulating support that described conductivity circuit is used; And part that above-mentioned switching control mechanism is installed from the outside.
According to another particular embodiment of the present invention, this device also comprises an electronic package that can be positioned on from the outside on the described base in addition at least, so that the operating state of the described controlling organization that opens circuit when being controlled at the signal of telecommunication that the response wound core produces.
According to another particular embodiment of the present invention; described top half housing comprises a fenestra that is in above the internal electron plug-in unit; and be designed to the form of connection cover; it has formed a protective cover; and be supported on it on the surface of connecting terminal bottom; thereby cause a kind of like this result: when connection cover is fixed on the upper surface of upper half shell; connection cover has just been covered fenestra; and meanwhile; the connecting terminal of connection cover has also just automatically formed electrical connection between the active component in electronic package and other housing; and conversely; when mentioning connection cover; electronic package has just been kept apart fully, so just can carry out the electric test of differential protection, and can not cause the electronic package breakage.
More than these purposes, feature and advantage and other content more of the present invention can in the detailed description process of some embodiment of back, be understood better with reference to some accompanying drawings, the situation in the accompanying drawing is as follows:
Fig. 1 is the operation principle schematic diagram of differential protection of the present invention;
Fig. 2 is the three-dimensional view of switching device;
Fig. 3 be insert with differential protection that Fig. 2 switch is connected in the three-dimensional view of starter mechanism;
Fig. 4 is the decomposer view of differential protection; Can find out the functional part in the differential protection among the figure, these parts are by the profile splicing;
Fig. 5 is the decomposer view of main element in the functional part represented of Fig. 4;
Fig. 6 is the stereogram that expression constitutes two separate sections of base, and this base is one of in Fig. 5 functional part;
Fig. 7 is the stereogram of Fig. 6 base, and this base is with the amalgamation state representation;
Fig. 8 is the simplification profile of wound core structure, and this wound core is parts in the differential protection of representing among the above-mentioned figure;
Fig. 9 is the exploded perspective view of the wound core represented of Fig. 8;
Figure 10 is the more detailed three-dimensional view of discrete component in the wound core shell of representing in the pie graph 9;
Figure 11 is the stereogram of connection cover (plate), and this cover plate is the single parts that can arbitrarily constitute a differential protection part of the present invention, can see electronic package compound mode and the same differential protection by this connection cover from top;
Figure 12 is the three-dimensional view of Figure 11 connection cover, and this figure is a upward view.
Fig. 1 has described the operation principle of differential protection of the present invention.
In this embodiment, differential protection is designed to four utmost points.If be designed to the differential protection of other number of poles, such as being 2 utmost points or 3 utmost points, then the parts of other in device also should have and the corresponding quantity of number of poles.
As everyone knows, the operation principle of this protective device mainly just is to measure the summation of the electric current of flowing through simultaneously in four current paths of corresponding four utmost points.Therefore, differential protection has four current paths 1,2,3,4, and when this device operate as normal, the electric current of four utmost points is all from wherein passing through.Each current path can be made such as the copper material structure by metal structure, its input wires terminal 5 of each end band and an output wiring terminal 6, and also there is electrical conductivity component 7 at the position therebetween.The installation of magnet ring 8 will center on four electrical conductivity components 7 simultaneously.When the parallel circuit operate as normal of the downstream of differential protective device, the electric current in four electrical conductivity components 7 of flowing through simultaneously clearly is being each moment that equates, its summation equals zero.Ifs circuit causes irregular variation mainly due at least one electrode ground connection and shunting for example, and the electric current summation in four electrical conductivity components 7 of flowing through has simultaneously just no longer equalled zero.Under the sort of situation, the coil 9 that is wrapped on the magnet ring 8 is just poor in its lead-in wire 10,11 place's appearance potentials, just generates electric current in other words when the electric current summation of four electrical conductivity components 7 of flowing through is not equal to zero.The lead-in wire 10,11 of coil 9 is all received electronic package 12; this plug-in unit is used for surveying voltage or the electric current that occurs at coil 9 terminal places; so that send the signal of drive controlling mechanism 13; the design of this mechanism makes it possible to realize multipole switch D(Fig. 2) open-circuit operation, this multipole switch is connected with differential protection or is combined.
This class differential protection is to belong to known systems, and it all is that whole device features is housed in insulation shell in general.Can see the overall exterior shape of above-mentioned driving mechanism 13 on Fig. 3, driving mechanism 13 is parts of parts in the differential protection housing 14.
Fig. 4 has expressed some critical pieces that constitute differential protection in the mode of exploded perspective view.This differential protection normally is made of functional part 16; this functional part comprises the parts of some; these parts will be described in the back; but they all have the fundamental characteristics that can be assembled, so that form single function integral body, that is to say the single component that can work.
Functional part 16 is to be contained in specially in the housing 14, and this housing is made up of lower half shell 14A and upper half shell 14B, and they all are plastic insulation materials, and they can make up mutually, so that constitute housing 14, in this enclosure interior functional part 16 is housed.After two parts combination of housing 14, just being almost is the general shape of parallelepiped.Differential protection also comprises a connection cover 18 in addition, and its 26S Proteasome Structure and Function will be described in the back.
On Fig. 5, to decompose stereoscopic mode, show various main components, they have constituted the functional part of representing with compound mode 16 on Fig. 4.Can see in Fig. 5: this functional part 16 generally has the base 20 of insulating plastics material.Install and fixed the effective parts or the element of the differential protection of some on this base or in the base.These effective parts or element are as follows:
-first element 22 is called " coupling assembling " later.Coupling assembling 22 is by the single conductivity circuit of some (quantity of these conductivity circuits equals the number of poles in the designed differential protection), and is pointed as Fig. 1.Every the conductivity circuit all has a lead-out terminal 28.For simplicity, on Fig. 5, only a conductivity circuit is had and be respectively 24,26 and 28 mark.
The element of-another functional part 16 is made of wound core 30, and it generally includes a magnet ring, a coil and an outer casing that is wrapped on the magnet ring.This coiling magnet ring back is with for a more detailed description.
Another element of-functional part 16 then is made of electronic package 32.
Last element of-functional part 16 is made of starter mechanism 34.
Functional part 16 also comprises a base 20, and is inner or be fixed with coupling assembling 22, coiling magnet ring 30, electronic package 32 and starter mechanism 34 on every side respectively at this base.Or rather, wound core is contained in the inside of base 20, and other element 22,32 and 34 then is contained in the outside of base 20.Obviously: compare with the differential protection of prior art; the main difference of differential protection of the present invention just is: differential protection of the present invention is made of a functional part; this functional part as its name suggests; it comprises various requisite function element; apparatus of the present invention also comprise a housing 14, and described functional part 16 is contained in this housing.
In contrast, in the known for this reason up till now differential protection, various function element all fix or the housing of packing in, this housing is such as being made up of two parts, thereby forms an inner chamber that is used to hold all functional elements.Cause such result therefrom: can both the necessary closure casing of operate as normal for making inner function element.Therefore, in the differential protection of prior art, people can not be before housing seal the integral working of testing apparatus, after housings close, can not detect the problem source that is occurred aspect the differential protection service behaviour like this.
One of critical piece of differential protection of the present invention also has base 20.In Fig. 6 and Fig. 7, compare this base 20 that shows in more detail.Base 20 is made up of two independent substructure member 20A and 20B, and these two members have certain mirror symmetry each other, and they are chimeric each other.Each is single electric insulation molded item for two substructure member 20A and 20B.Substructure member 20A the most normal part be to adopt vertical partition plate (wall) 36, substructure member 20B then has the form of vertical partition plate 38 in general equally.When two substructure member 20A and 20B combination, these two vertical partition plates 36 and 38 almost are parallel each other.Compartment door 42,44 is installed in dividing plate 36 respectively on that side of substructure member 20B, (only can see those dividing plates of member 20B on the figure) with dividing plate 38 on that side of substructure member 20A, these two compartment doors 42,44 extend vertically up to vertical partition plate 36 or 38 separately.On substructure member 20B, but identify the black box of dividing plate 42 and 44 more detailedly, although on substructure member 20A, also designed similar dividing plate.It almost is columniform outer casing that dividing plate 42 has formed one, and dividing plate 44 one of formation almost are columniform inner cans.Therefore, the space of separating external partition 42 and internal partition 44 is similar spaces for annular, and this annular space has just constituted the groove that holds iron core 30 usefulness.On substructure member 20A, equally also settled a similar annular space, though on Fig. 6, can't see it.When member 20A and 20B were together with each other, two annular grooves are common to form an annular groove, and its overall width is slightly greater than the width of wound core 30.Reach a conclusion thus: before combination or the installation function assembly 16, earlier ribbon-wound core 30 to be put into the annular groove that is limited by dividing plate 42 and 44, chimeric two substructure member 20A and 20B then so that wound core 30 is surrounded fully.
In such cases, base 20 has just become the sort of form represented on Fig. 7.Toroidal membrane 44 is hollow, and has formed an interconnection.Or rather, this core that hollows out comprises four and cuts apart dividing plate 46, and they stretch along axle 48, and axle 48 is perpendicular to vertical partition plate 38.Cut apart dividing plate 46 cross section of center cut-out is divided into four passages.Adopt this mode, four electrical conductivity component 26(Fig. 5) can be respectively from passing four passages 50 to another side here, these four passages are that to cut apart dividing plate 46 by four separated from one another.Certainly, element 42,44,46 and 50 similar symmetric form all design on substructure member 20A (these shapes of member 20A be can't see) on Fig. 6.
After packing into wound core 30 between cylindrical dividing plate 42 and 44, and combined two substructure member 20A and 20B, again coupling assembling 22 is installed on the base 20.In order to carry out this installation each (24,26,28) in four conductivity circuits all are positioned on the base 20.The connection of each conductivity circuit is as follows.Electrical conductivity component 26 radials are fixed on an end 52 place's (see figure 5)s of lead-in clamp 24, and then a single piece that is made of element 24,26 and 52 is positioned on the base member 20A, make electrical conductivity component 26 from passing a groove 50 here there, and make lead-in clamp 24 face the locating surface location, these locating surfaces all are placed in the outside of the vertical partition plate 36 of substructure member 20A.Afterwards, output wiring terminal 28 and extension 54 thereof are positioned on the substructure member 20B, make output wiring terminal 28 face the locating surface location, these locating surfaces are suitable for installing in substructure member 20B vertical partition plate 38 outsides.At last, the dead end of electrical conductivity component 26 is carried out mechanism with the extension component 54 of output wiring terminal 28 or be electrically connected.
Cause such result thus: element 24,52,26,54 and 28 constitutes electrical connection each other, so that constitute a conductivity circuit.Thereby this conductivity circuit can be from one side to another side by the passage 50 of coiling magnet ring 300 centers in the base 20.Other three conductivity circuits are installed then in the same way, so that make each conductivity circuit wherein all pass through in other three passages 50 one.
Afterwards, electronic package 32 is pacified to base 20.This electronic package 32 can be positioned on base 20 above, adopt suitable ratchet parts and location parts 56 to carry out ratchet braking (see figure 7) simultaneously.
Then, controlling organization 34(can see on Fig. 5 opening circuit) be installed on the base 20, this base includes suitable ratchet braking and locating surface 58(and sees Fig. 7).
At last, at wound core 30, electronic package 32 with open circuit and carry out necessary electrical connection (these are connected electrically on the accompanying drawing and do not show) between the controlling organization 34.
When finishing this installation, just obtained black box, this single piece has constituted functional part 16 as shown in Figure 4.Functional part 16 comprises various mechanical organs, electric component and electronic component, and these elements can make the functional part operate as normal.Draw this result thus: on the circuit (not showing) of corresponding binding post that just lead-in clamp 24 and output wiring terminal 28 might be connected respectively to multipole switch D under the sort of situation and analog electrical load.People just can add electric loading usually at that time, so that the functional part 16 that is connected with multipole switch is carried out functional test.
If any dysfunction does not appear in this functional test, just can pacify housing lower half 14A and upper half-shell 14B to functional part 16 at that time, and finish the installation (see figure 4) of differential protection satisfactorily.When two parts half housing 14A and 14B pacify to functional part 16 and combination with one another when good like this, two parts half housing 14A and 14B have just formed an outer casing, and it has virtually completely surrounded functional part 16.
When attaching a connection cover 18 again on upper half shell 14B, can make this installation more perfect, the structure of this connection cover and composition will be explained in the back.Just finished the assembling of differential protection of the present invention at that time, and this test shows that differential protection working properly just can disconnect with switch and test circuit, is beneficial to the finished product of differential protection is stored.
If functional test discovery feature parts 16 have some dysfunction, people just can take following two kinds of measures according to the type of discovery dysfunction:
If-dysfunction belongs to the sort of type that functional part 16 some position are damaged, so that proof functional part 16 can not have been used, then whole functional parts 16 are scrapped.
-if dysfunction belong to out of order situation of function element in the functional part 16 only arranged, that is to say, coupling assembling 22 or coiling magnet ring 30 or electronic package 32 or switching control mechanism 34 and other can be dismantled the out of order words of element of use separately, just can directly handle, such as regulating or dismantle or replacing with other new element to damaged element.People carry out functional test to functional part 16 more at that time, and if find that the functional part 16 repaired is working properly, just can when assembling housing 14 and connection cover 18, finish the installation of differential protection satisfactorily.Because differential protection is convenient to commercialization and differential protection is stored as the front is said.
As represented on Fig. 5, coiling magnet ring 30 has constituted a kind of parts, and these parts itself have certain characteristic, below described at once.Total profile of coiling magnet ring 30 is ring-types, as seeing on Fig. 5, have a projection 58 auxiliary from the side to this coiling magnet ring, this protuberance can allow the coiling output line of coiling magnet ring pass through, and purpose is that these output lines can be connected with electronic package 32.As everybody on Fig. 8, can see, these parts that constitute the coiling magnet ring have a kind of special structure, this structure is advantageous particularly in the scope of application of functional part 16 of the present invention.The formation of coiling magnet ring 30 is by a magnetic material ring 60 as Fig. 8 is represented; Two parts half housing shape container 62A, this two parts hull shape body of 62B(surround each side of magnet ring 60 from the side); Be centered around two and half shell vessel 62A, 62B coil windings 64 on every side; A framework 66(back is described again) and two outer cover husk 68A and 68B make.Two insulation half shell vessel 62A and 62B are used for forming a thin involucrum of the electric insulation around magnet ring 60.These two insulation half shell vessel 62A and 62B are when both sides encase magnet ring 60, and their connections that do not overlap each other fully are so that reserve a space E between them.Coil windings 64 is made up of coil insulation line or lacquer wire at least.The winding wire of coil 64 is wrapped in around annular whole that is made of magnet ring 60 and two insulation half housing 62A and 62B, and the effect of twining will make that exactly winding wire often remains under the certain force of strain, so that when finishing after the coiling, whole stress of coil windings line have constituted certain dauer effect power, and it has kept two insulation half housing 62A and 62B to come on the magnet ring 60.Produce such result therefrom: the integral body of being made up of magnet ring 60, two insulation half housing 62A and 62B and coil windings 64 has formed a black box.
Coiling magnetic core 30 also comprises a winding coil 72 in addition, and it is made up of winding coil half hull shape body 72A and half hull shape body 72B.Two coil windings half hull shape body 72A and 72B are surrounded each limit of whole of ring-type from the side, and whole of this annular is formed by parts 60,62,64 and 66, almost is continuous coil windings shell body 72 so that constitute one.
Can find out that on Fig. 9 these elements have been formed the described coiling magnet ring 30 of Fig. 8 to decompose the various elements that stereoscopic form is represented.Magazine 66 is half case cover shape, and it has constituted one almost is the cavity groove of annular or annular, and it can surround or center on almost is the exterior contour of the coil windings 64 of ring-type firmly.Or rather, the sort of situation of getting in touch Fig. 8 exactly and being described can see that magazine 66 also comprises branch 66A, the 66B of axial trend, the branch spare 66A and the 66B of the parts 66 that Fig. 8 described of front contact just.Framework 66 has constituted the single parts of a moulding material with branches 66A and 66B.
Figure 10 has expressed described magazine 66 on Fig. 9 with the form of the stereogram of amplification.See that on Figure 10 this framework comprises sub-unit 66A respect to one another, 66B, this combination of sub-unit 66A, 66B has formed the space regularly in circumference range.Framework 66 comprises a lateral projections 78 in addition, and it is to be used for supporting and to guide connecting line that winding 64 links to each other with the outside.Framework 66 can be made by the plastic insulation material with better consistency and elasticity mechanical performance.Framework 66 can guarantee simultaneously that winding 64 has firm profile and guarantees and reliable connection that shields 72.On other meaning, this framework is also as connector between two single piece, and one of these two single piece are made of magnet ring 60, insulating part 62 and winding 64, and another is made up of two coil windings, half vessel shell 72A and 72B.Therefore this framework 66 can be fixed the single piece of these parts, and these parts have constituted the said coiling magnet ring 30 in front together.Produce such result thus: coiling magnet ring 30 constitutes a single piece, and all are formed these unitarily formed parts and all firmly are connected to each other in this single piece.The single single piece of this formation coiling magnet ring 30 also has an advantage in addition, is exactly that it can be dismantled.Particularly can easily two windings, half case 72A, 72B and magazine 74 be disassembled.
The coiling magnetic core 30 of this structure also has an advantage, has promptly guaranteed the best protection to coil windings 64, and this winding coil is the most flimsy parts in the single piece.In fact, but framework 74 strong yet flexiblely pack tightly winding 64, have also avoided simultaneously tolerance clearance occurring aspect the winding 64.This gap is prejudicial, because clashed into or certain vibration the time may damage winding coil 64 when single piece.
Figure 11 and 12 has depicted the connection cover that the front had been mentioned.Connection cover 18 this parts can arbitrarily be designed according to the structure of previously described differential protection of the present invention.The design of connection cover 18 is exactly in order to install under the situation about finishing at described protective device; that is to say, after fully functional part 16 being combined, to its test and judge functional after; and after being enclosed in the housing 14, connection cover just is installed to functional part 16.More precisely, connection cover 18 is that special use comes just to be fixed on the upper half-shell 14B after two and half-housing 14A and 14B combine.
Claims (5)
1, be combined into the unitarily formed differential protection of differential switch with multipole switch, this differential protection comprises:
A housing that constitutes by housing lower half (14A) and upper half-shell (14B), it can all encapsulate the various active components of differential protection get up, and these different active components have at least:
Coupling assembling (22), it has formed the conductivity circuit (26) that different poles is used in the multipole switch;
Coiling magnet ring (30) is around the above-mentioned conductivity line configuring of surveying differential current;
It is used for switching control mechanism (34) under the situation of the described coiling magnet ring of response signal induced electricity, the action of opening circuit in the control multipole switch;
This differential protection is characterised in that: it also comprises a base (20) in addition, and above-mentioned active component all is fixed on this base, has constituted a firm functional part (16) together;
Consequent effect is: above-mentioned functions parts (16) can be connected to differential switch, so that can carry out the functional test of functional part (16), simultaneously relevant with some above-mentioned active component (22,30,34) at least, when the above-mentioned functions test had verified that its service behaviour is satisfactory, described functional part (16) just was encapsulated in the aforementioned housing (14A, 14B) subsequently.
2, differential protection according to claim 1 is characterized in that: described base (20) is can be made of with the moulding material base element (20B) of first tabling is common first moulding material base element (20A) and second.
3, differential protection according to claim 2 is characterized in that: these two described first base elements (20A) and second base element (20B) form under chimeric situation jointly:
Almost surround the case (42,44) of coiling magnet ring (30) fully; Be in the cruciform shape passage (50) of coiling magnet ring center, be used for allowing above-mentioned conductivity circuit (26) cross over;
The insulating support of above-mentioned conductivity circuit (26) usefulness; And one can be installed the support of aforementioned switches controlling organization (34) at least from the outside.
4, differential protection according to claim 3; it is characterized in that: it at least also comprises an electronic package (32) in addition; this plug-in unit can be positioned on the above-mentioned base from the outside; so that under the situation of response coiling magnet ring (30) signal induced electricity, control the operating state of described switching control mechanism (34).
5; differential protection according to claim 4; it is characterized in that: so-called upper half-shell (14B) has a fenestra (84); it just in time be in described internal electron plug-in unit (32) above; and the feature of this device also is: it has designed a connection cover (18); this lid has constituted a protective cover; and be supported on it on the surface of connecting terminal (82) bottom (80A); produce such effect thus; when connection cover being fixed on the upper surface of upper half-shell (14B); connection cover (18) blocks fenestra (84); meanwhile; the connecting terminal of connection cover (82) just automatically forms between other effective parts in electronic package (32) and housing and is electrically connected; and in contrast; when connection cover (18) when taking off; electronic package (32) has just disconnected fully, so just can carry out the electric test of differential protection, and has avoided damaging the danger of electronic package.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9301506A FR2701335B1 (en) | 1993-02-09 | 1993-02-09 | Differential protection block with testable functional sub-assembly. |
| FR9301506 | 1993-02-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1101456A true CN1101456A (en) | 1995-04-12 |
| CN1042870C CN1042870C (en) | 1999-04-07 |
Family
ID=9443936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94102624A Expired - Fee Related CN1042870C (en) | 1993-02-09 | 1994-02-05 | Differential protecting device with unit with detecting function |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0611224B1 (en) |
| CN (1) | CN1042870C (en) |
| DE (1) | DE69412149T2 (en) |
| ES (1) | ES2120589T3 (en) |
| FR (1) | FR2701335B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1312719C (en) * | 2004-12-14 | 2007-04-25 | 常熟开关制造有限公司(原常熟开关厂） | Plastic casing circuit breaker |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2772979B1 (en) * | 1997-12-18 | 2002-09-20 | Schneider Electric Sa | DEVICE FOR ELECTRICALLY CONNECTING A DIFFERENTIAL BLOCK ON A CIRCUIT BREAKER OR THE LIKE AND DIFFERENTIAL BLOCK EQUIPPED WITH SUCH A DEVICE |
| FR2790610B1 (en) * | 1999-03-02 | 2001-05-04 | Schneider Electric Ind Sa | ELECTRONIC TRIGGER COMPRISING A REMOVABLE LONG DELAY MODULE ASSOCIATED WITH A CONNECTION / DISCONNECTION FUNCTION IN VOLTAGE |
| FR2811805B1 (en) * | 2000-07-13 | 2002-08-30 | Schneider Electric Ind Sa | DIFFERENTIAL ELECTRICAL PROTECTION APPARATUS |
| ITBG20030034A1 (en) * | 2003-05-20 | 2004-11-21 | Abb Service Srl | DEVICE FOR CONTAINING HALF CURRENT SENSORS. |
| JP4200291B2 (en) | 2003-05-21 | 2008-12-24 | 富士電機アセッツマネジメント株式会社 | Earth leakage breaker |
| JP4123081B2 (en) * | 2003-07-03 | 2008-07-23 | 富士電機機器制御株式会社 | Earth leakage breaker |
| FR2926393B1 (en) * | 2008-01-10 | 2009-12-18 | Schneider Electric Ind Sas | TRANSFORMATION BLOCK OF A DOUBLE-PASSING ELECTRONIC TRIGGER |
| EP2079091B1 (en) | 2008-01-10 | 2014-01-29 | Schneider Electric Industries SAS | Voltage trigger case for a circuit breaker, voltage trigger device and assembly method |
| FR3029350B1 (en) * | 2014-12-01 | 2016-12-23 | Hager-Electro Sas | DEVICE FOR DIFFERENTIAL PROTECTION |
| DE102020116428A1 (en) * | 2020-06-22 | 2021-12-23 | Magnetec Gmbh | Sensor, circuit breaker, charging cable and charging station |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1022298B (en) * | 1956-09-07 | 1958-01-09 | Siemens Ag | Self-switch that can be assembled from assemblies |
| DE7637590U1 (en) * | 1976-12-01 | 1981-12-24 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Residual current circuit breaker combined with a line circuit breaker |
| US4507709A (en) * | 1984-02-13 | 1985-03-26 | General Electric | Electrical interconnect arrangement for a GFCI magnetic sensor module plug-in subassembly |
| US4641216A (en) * | 1985-04-22 | 1987-02-03 | General Electric Company | Signal processor module for ground fault circuit breaker |
| US5095398A (en) * | 1990-02-12 | 1992-03-10 | Square D Company | Electrical circuit breaker protection device |
-
1993
- 1993-02-09 FR FR9301506A patent/FR2701335B1/en not_active Expired - Fee Related
-
1994
- 1994-01-26 ES ES94420024T patent/ES2120589T3/en not_active Expired - Lifetime
- 1994-01-26 DE DE1994612149 patent/DE69412149T2/en not_active Expired - Lifetime
- 1994-01-26 EP EP19940420024 patent/EP0611224B1/en not_active Expired - Lifetime
- 1994-02-05 CN CN94102624A patent/CN1042870C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1312719C (en) * | 2004-12-14 | 2007-04-25 | 常熟开关制造有限公司(原常熟开关厂） | Plastic casing circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0611224B1 (en) | 1998-08-05 |
| FR2701335A1 (en) | 1994-08-12 |
| CN1042870C (en) | 1999-04-07 |
| ES2120589T3 (en) | 1998-11-01 |
| DE69412149D1 (en) | 1998-09-10 |
| EP0611224A1 (en) | 1994-08-17 |
| DE69412149T2 (en) | 1999-02-11 |
| FR2701335B1 (en) | 1995-04-14 |
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Free format text: CORRECT: PATENTEE; FROM: SCHNEIDER ELECTRIC SA TO: SCHNEIDER ELECTRIC INDUSTRIAL CO., LTD. |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
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