CN214753583U - Intelligent circuit breaker capable of simultaneously measuring current value and detecting large current characteristic - Google Patents
Intelligent circuit breaker capable of simultaneously measuring current value and detecting large current characteristic Download PDFInfo
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- CN214753583U CN214753583U CN202022808729.5U CN202022808729U CN214753583U CN 214753583 U CN214753583 U CN 214753583U CN 202022808729 U CN202022808729 U CN 202022808729U CN 214753583 U CN214753583 U CN 214753583U
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Abstract
The utility model relates to a can measure current value and detect intelligent circuit breaker of heavy current characteristic simultaneously, it is provided with the cavity to be located contact unit upper portion department in the base, switching power supply circuit sets up in this cavity, carry out the electricity through the external conductor that sets up in the base inner chamber between inlet wire end and the switching power supply circuit and be connected, intelligent control mechanism is connected with switching power supply circuit electricity, current transformer is including the protection monitoring mutual-inductor that is used for detecting the heavy current characteristic and the measurement monitoring mutual-inductor that is used for measuring current value, the central point that protection monitoring mutual-inductor and measurement monitoring mutual-inductor were passed respectively to the static contact puts, protection monitoring mutual-inductor and measurement monitoring mutual-inductor are connected with intelligent control mechanism electricity respectively.
Description
Technical Field
The utility model belongs to the technical field of mould shell electrical apparatus and specifically relates to a can accurate measurement electric current numerical value and transmit intelligence at backstage
Can be used as a circuit breaker.
Background
With the development of intelligent technology and internet of things technology, the intelligent circuit breaker gradually replaces the traditional circuit breaker, in the existing intelligent circuit breaker, the general principle is to monitor the passing current by using a current transformer, and to perform corresponding judgment and data transmission on the monitoring data, however, the current monitoring transformer in the existing circuit breaker can monitor in a large current range, but cannot accurately measure the current value to a corresponding accuracy, therefore, the current intelligent circuit breaker only has the monitoring of current characteristics and can not accurately measure current data, if the two functions are required to be realized, a current measuring instrument is usually matched independently, the mutual inductor in the current measuring instrument adopts different processes and manufacturing methods, so that the actual value of the current can be accurately measured, but the space cost and the material cost are increased. Therefore, some manufacturers consider how to combine two functions, namely, two types of current transformers are simultaneously fused in one circuit breaker, so that the functions of detecting characteristics and measuring instruments are achieved, but because the switching function of the circuit breaker and the transformers are connected in series on the same power supply, when the circuit breaker is tripped after an opening is broken, the current transformers can be correspondingly disconnected, and data can not be transmitted to a server, so that the technology is in the technical problem and cannot be practically applied. Therefore, how to develop an intelligent circuit breaker which can measure the current value and detect the large current characteristic and can enable the current transformer to continue to work in the off state of the circuit breaker becomes a technical problem which needs to be solved urgently.
Disclosure of Invention
In order to solve the technical problems, the intelligent control device comprises a base, an intelligent control mechanism arranged in an inner cavity of the base, a switching power supply circuit and a contact unit for controlling the breaker to be switched on and off, wherein an insulating shell is arranged outside the contact unit, a plurality of wire inlet ends are arranged outside the base, the intelligent control mechanism is integrally integrated with a breaker state switching circuit, a control circuit, a display panel and a current transformer for detecting current, the contact unit comprises a fixed contact and a moving contact, a cavity is arranged in the base and positioned at the upper part of the contact unit, the switching power supply circuit is arranged in the cavity, the wire inlet ends and the switching power supply circuit are electrically connected through an external lead arranged in the inner cavity of the base, the intelligent control mechanism is electrically connected with the switching power supply circuit, the current transformer comprises a protection monitoring transformer for detecting the large-current characteristic and a metering monitoring transformer for metering the current value, the static contact respectively passes through the central positions of the protection monitoring mutual inductor and the metering monitoring mutual inductor, and the protection monitoring mutual inductor and the metering monitoring mutual inductor are respectively and electrically connected with the intelligent control mechanism.
After the structure is adopted, the cavity position above the contact unit of the molded case circuit breaker is utilized to put the switch power supply into the cavity
The way, not only the adaptation degree is better, but also does not additionally increase the whole volume of circuit breaker, has solved among the prior art structure too redundantly, the relatively poor technical problem of adaptation nature, and in the aspect of the wiring, walk around the contact part and the switching power supply circuit lug connection of circuit breaker through external conductor between switching power supply circuit and the inlet wire end, realized because tripping operation phenomenon, control module can also continue work, and current transformer still can continue the technical requirement of uploading data. And on the other hand, the arrangement of the two core-through current transformers can monitor the current characteristics and the current value simultaneously according to the functional models of the current transformers.
As a further improvement of the invention, a protection monitoring transformer and a metering monitoring transformer which are used for the connecting sheet to sequentially pass through are arranged on the connecting sheet of each static contact in the intelligent circuit breaker in a matching way, a transformer seat used for accommodating the first protection monitoring transformer and the metering monitoring transformer is also arranged in the base, and the protection monitoring transformer and the metering monitoring transformer are transversely abutted against each other.
After having adopted above-mentioned structure, can guarantee that two mutual-inductors all can set up in the circuit breaker and normal work.
As a further improvement of the invention, the external lead comprises an electrical connection sheet electrically connected with the incoming line end and a flexible lead welded on the electrical connection sheet and electrically connected with the switching power supply circuit, the flexible lead is vertically arranged in the shell, one end of the flexible lead is welded with the electrical connection sheet at the bottom of the base, and the other end of the flexible lead extends into the cavity and is electrically connected with the switching power supply circuit.
After having adopted above-mentioned structure, through walk the line and adopt electric connection piece and flexible conductor's the line mode of walking in the bottom, can the at utmost practice thrift and walk the line volume, do not influence the normal use of circuit breaker in addition, also can not influence in normal use, also can not cause the influence to external circuit because of the use to the circuit breaker.
As a further improvement of the invention, the switching power supply circuit comprises a switching power supply access socket and a switching power supply output socket, the flexible lead is plugged into the switching power supply access socket after being connected out, and the switching power supply output socket is connected with the control circuit. The access power supply of the built-in switch power supply separately controlled intelligent molded case circuit breaker is more than two phases, the wire inlet ends of the more than two phases are respectively provided with an electric connecting sheet electrically connected with the wire inlet end and a flexible wire welded and extended by the electric connecting sheet, the electric connecting sheet is spot-welded on the wire connecting end, is positioned between the bottom of the inner cavity of the base and the insulating shell of the contact unit, bends and extends to the lower part of the cavity along the shape of the insulating shell of the contact unit, and finally the flexible wire soldered on the electric connecting sheet is led to the cavity to be electrically connected with the switch power supply circuit.
After the structure is adopted, the switch power supply circuit can be ensured to output and input electric energy better. And two-phase, three-phase and four-phase power input can basically meet most use scenes.
As a further improvement of the present invention, the connecting housing includes an opening, the circuit board of the switching power supply circuit is disposed in the opening, the connecting housing can be simultaneously adapted to be connected to the 250-casing-frame molded case circuit breaker and the 630-casing-frame molded case circuit breaker, a cavity for placing the switching power supply circuit is disposed inside the 250-casing-frame molded case circuit breaker and the 630-casing-frame molded case circuit breaker, and the cavity is a placing cavity for initially placing the state switching circuit of the circuit breaker. The utility model discloses a connection casing, including the connecting casing, switch power supply circuit board, connecting casing, connecting and connecting casing, connecting casing, connecting and connecting casing, wherein the connecting casing, connecting casing, and connecting casing, wherein the connecting the casing, and the connecting the casing, the connecting the casing, the connecting the casing, the connecting the casing, the.
After having adopted above-mentioned structure, because 250 shell frame moulded case circuit breakers and 630 shell frame moulded case circuit breakers just originally were provided with the cavity that is used for placeeing circuit breaker state switching circuit, because the intelligent technology who integrates and integrate develops gradually, current circuit breaker state switching circuit all assembles in control circuit, so, should place the cavity and will vacate. The switch power supply circuit can be placed in the placing cavity, the placing problem of the switch power supply circuit is solved, and other spaces of the circuit breaker cannot be increased and influenced.
As a further improvement of the present invention, a connecting housing for placing a circuit board of the switching power supply circuit is further disposed outside the switching power supply circuit, the connecting housing can be adapted to be connected to the 250-shell molded case circuit breaker and the 630-shell molded case circuit breaker at the same time, and the cavities of the 250-shell molded case circuit breaker and the 630-shell molded case circuit breaker are placing cavities for initially placing the circuit breaker state switching circuit. First screwed connection hole and second screwed connection hole support mutually and lean on and integrated into one piece, and 250 shell frame moulded case circuit breaker place on the cavity lateral wall vertically be provided with connect protruding muscle, be provided with the third screwed connection hole unanimous with first screwed connection hole size on 250 shell frame moulded case circuit breaker place the cavity, first joint spare is for setting up in the first spacing spread groove of backplate lateral part, and when connecting the casing and installing on 250 shell frame moulded case circuit breaker, first spacing spread groove adaptation is on connecting protruding muscle, and first screwed connection hole passes through screw fixed connection with third screwed connection hole. The second joint spare is including setting up in the joint groove and the joint piece on backplate surface, 630 shell frame moulded case circuit breaker place be provided with on the cavity with the unanimous fourth screw connection hole of second screw connection hole size, the cavity of placeeing on the 630 shell frame moulded case circuit breaker is provided with the splice bar, contact unit insulating casing upper surface on the 630 shell frame moulded case circuit breaker is provided with the spacing spread groove of second, when connecting casing and installing on 630 shell frame moulded case circuit breaker, but the joint groove adaptation is on the splice bar, but the joint piece joint is on the spacing spread groove of second, second screw connection hole and fourth screw connection hole pass through screw fixed connection.
After having adopted above-mentioned structure, first screw connecting hole supports mutually with second screw connecting hole and leans on to be connected, because moulded case circuit breaker can divide into small-size shell frame moulded case circuit breaker and large-scale shell frame moulded case circuit breaker according to the shell frame, and how to design a connecting shell and come the moulded case circuit breaker of these two structures of adaptation simultaneously and become the technical problem that needs to solve. 250 shell frame moulded case circuit breaker and 630 shell frame moulded case circuit breaker place originally on the cavity just be provided with two screw connection holes and be used for connecting circuit breaker state switching circuit, after this cavity vacates, just can reuse originally on the cavity just two screw connection holes that exist let connect casing and circuit breaker be connected, as long as on the back of external casing the accuracy set up corresponding connection hole site can, on the other hand, because only a fixed point is the stability that can't guarantee switching power supply circuit, therefore, corresponding splice bar and joint groove have still been increased, the joint piece is mutually supported firmly with the spacing spread groove of second. This patent is not limited to the circuit breaker of 250 shell frame models and the circuit breaker of 630 shell frame models, as long as the structure of putting the cavity is unanimous with the cavity of putting of above-mentioned both circuit breakers, all falls into the protection scope of this patent.
Drawings
Fig. 1 is an exploded sectional view of an internal structure of an intelligent molded case circuit breaker;
figure 2 is a schematic side view of the circuit breaker with the circuit breaker housing removed;
FIG. 3 is a schematic diagram of an external connection wire;
FIG. 4 is a top view of the bonding pad and terminal connection;
FIG. 5 is a top view of the solder tab and flex conductor connection;
FIG. 6 is a top view of the switching power supply circuit connection housing;
FIG. 7 is a schematic diagram of a switch power circuit connected to a housing back plate;
fig. 8 is a top view of a 250-casing molded case circuit breaker placement cavity;
fig. 9 is a top view of a 630-frame molded case circuit breaker placement cavity;
figure 10 is a front view of the circuit breaker with the front housing structure removed;
figure 11 is a side view of the circuit breaker with the front housing structure removed;
figure 12 is a front view of the circuit breaker with the front housing removed.
Detailed Description
The intelligent protection and monitoring instrument transformer comprises a base 1, an intelligent control mechanism 2, a contact unit 3, a wire inlet end 4, a switching power supply circuit 21, an external lead 5, an electric connecting sheet 51, a flexible lead 52, a spot welding point 53, a soldering point 54, a connecting shell 6, a back plate 7, a first screw connecting hole 71, a second screw connecting hole 72, a first limiting connecting groove 73, a clamping groove 74, a clamping block 75, a connecting convex rib 81, a third screw connecting hole 82, a connecting rib 91, a second limiting connecting groove 92, a fourth screw connecting hole 93, a protection and monitoring instrument transformer 11 and a metering and monitoring instrument transformer 12.
As shown in fig. 1 to 12, the intelligent control device comprises a base 1, an intelligent control mechanism 2, and a contact unit 3 arranged in the base 1, wherein a plurality of wire inlet terminals 4 are arranged outside the base 1, a cavity is arranged at the upper part of the contact unit 3 in the base 1, a switch power supply circuit 21 is arranged in the cavity, and the wire inlet terminals 4 and the switch power supply circuit 21 are electrically connected through an external lead 5. Utilize the cavity position of moulded case circuit breaker's contact unit 3 top, put into switching power supply circuit, not only the adaptation degree is better, but also do not additionally increase the whole volume of circuit breaker, it is too redundant to have solved the structure among the prior art, the relatively poor technical problem of adaptation nature, and in the aspect of the wiring, walk around the contact unit part and the switching power supply circuit 21 lug connection of circuit breaker through external conductor 5 between switching power supply circuit and the inlet wire end 4, guaranteed because tripping operation phenomenon, control module can also continue to work and upload the technical requirement of data. The current transformer comprises a protection monitoring transformer for detecting the large current characteristic and a metering monitoring transformer for metering the current value, the static contact penetrates through the central positions of the protection monitoring transformer and the metering monitoring transformer respectively, and the protection monitoring transformer and the metering monitoring transformer are electrically connected with the intelligent control mechanism respectively. The intelligent circuit breaker is characterized in that a protection monitoring mutual inductor 11 and a metering monitoring mutual inductor 12 which are used for enabling connecting pieces to sequentially penetrate are arranged on the connecting pieces of each static contact in the intelligent circuit breaker in a matched mode, a mutual inductor seat used for containing the protection monitoring mutual inductor 11 and the metering monitoring mutual inductor 12 is further arranged in the base, and the protection monitoring mutual inductor and the metering monitoring mutual inductor are transversely abutted against each other. The protection monitoring mutual inductor is provided with a first connecting wire 14 which is used for being electrically connected with an intelligent control mechanism.
External lead 5 includes the electric connection piece 51 of being connected with inlet wire end 4 electricity and welds the flexible conductor 52 of being connected with switching power supply circuit electricity on electric connection piece 51, 1 bottom of base is arranged in to electric connection piece 51 to laminating 1 bottom of base extends to switching power supply circuit direction, flexible conductor 52 is vertical to be set up in the casing, and one end welds with the electric connection piece 51 of base bottom, and the other end extends to in the cavity, is connected with switching power supply circuit electricity. Through walk the line and adopt electric connection piece 51 and flexible conductor 52 to walk the line mode at the bottom, can the at utmost practice thrift and walk the line volume, do not influence the normal use of circuit breaker in addition, also can not influence in normal use, also can not cause the influence to external circuit because of the use to the circuit breaker.
The access power supply of the built-in switch power supply separately-controlled intelligent molded case circuit breaker is a three-phase power supply, the three incoming lines are provided with electric connection sheets 51 electrically connected with the incoming line end 4 and flexible wires welded and extended by the electric connection sheets 51, the electric connection sheets are welded on the wiring ends in a spot welding mode 53 and located between the bottom of the inner cavity of the base and the insulating shell of the contact unit, the electric connection sheets are bent and extended to the lower side of the cavity along the shape of the insulating shell of the contact unit, and finally the flexible wires soldered on the electric connection sheets 54 are led to the cavity to be electrically connected with a switch power supply circuit.
The switching power supply circuit 21 comprises a switching power supply access socket 211 and a switching power supply output socket 212, the flexible lead is connected out and then plugged into the switching power supply access socket 211, and the switching power supply output socket 212 is connected with the control circuit. The switching power supply circuit can be ensured to output and input electric energy better. Switch power supply circuit 21 still is provided with the connection casing 6 that is used for placeeing the switch power supply circuit board outward, the connection casing has the opening, and switch power supply circuit board is placed in this opening, and connection casing 6 keeps away from the opening part and is provided with backplate 7 that can be used for connecting 250A shell frame moulded case circuit breaker inside cavity and 630A shell frame moulded case circuit breaker inside cavity, backplate 7 upper portion is provided with first screw connecting hole 71 and second screw connecting hole 72 that are used for the inside cavity of two model circuit breakers of screw connection, first screw connecting hole 71 supports with second screw connecting hole 72 and leans on setting and integrated into one piece. During daily use, the matching frequency of the 250A type circuit breaker and the 630A type circuit breaker is the highest. The switching power supply circuit is provided with the connecting casing that is used for placeeing switching power supply circuit board outward, but connecting casing simultaneous adaptation connects in 250 shell frame moulded case circuit breakers and 630 shell frame moulded case circuit breakers, 250 shell frame moulded case circuit breakers and 630 shell frame moulded case circuit breakers's cavity is the cavity of placeeing that is used for initially placeeing circuit breaker state switching circuit. The first screw connecting hole 71 and the second screw connecting hole 72 are mutually abutted and integrally formed, a connecting convex rib 81 is vertically arranged on the side wall of a placing cavity of the 250-shell frame molded case circuit breaker, a third screw connecting hole 82 with the size consistent with that of the first screw 71 connecting hole is arranged on the placing cavity of the 250-shell frame molded case circuit breaker, the first clamping piece is a first limiting connecting groove 73 arranged on the side part of the back plate, when the connecting shell is installed on the 250-shell frame molded case circuit breaker, the first limiting connecting groove 73 can be adaptive to the connecting convex rib 81, and the first screw connecting hole 71 is fixedly connected with the third screw connecting hole 82 through screws. The first and second screw coupling holes 71 and 82 are abutted against each other and integrally formed, the second clamping piece comprises a clamping groove 74 and a clamping block 75 which are arranged on the surface of the back plate 7, a fourth screw connecting hole 94 with the same size as the second screw connecting hole is arranged on the placing cavity of the 630-frame molded case circuit breaker, a connecting rib 91 is arranged on the placing cavity of the 630-frame molded case circuit breaker, a second limit connecting groove 92 is arranged on the upper surface of the contact unit insulating shell on the 630-frame molded case circuit breaker, when the connecting casing is installed on the 630-frame molded case circuit breaker, the clamping groove 74 can be adapted to the connecting rib 91, the clamping block 75 can be clamped on the second limiting connecting groove 92, and the second screw connecting hole 72 and the fourth screw connecting hole 93 are fixedly connected through a screw. Therefore, this patent product is for the circuit breaker of the above-mentioned two models of adaptation, and the screw connection hole of two different specifications has specifically been set up to let its and moulded case circuit breaker go up corresponding screw connection point and carry out the screw connection, and according to the circuit breaker of these two models, set up corresponding joint piece and joint groove, it is good to reach the adaptation degree, connects the technological effect of fastening.
Claims (9)
1. Can measure current value and detect intelligent circuit breaker of heavy current characteristic simultaneously, including the base, set up in the intelligent control mechanism of base inner chamber, switching power supply circuit and the contact element that control circuit breaker cut-off, the contact element outside is provided with insulating housing, and the base outside is provided with a plurality of inlet wire end, the integrative integration of intelligent control mechanism has circuit breaker state switching circuit, control circuit, display panel to and the current transformer who detects electric current, the contact element includes static contact and moving contact, its characterized in that: the utility model discloses a protection monitoring instrument, including base, switch power supply circuit, inlet wire end and switching power supply circuit, be located contact unit upper portion department in the base and be provided with the cavity, switching power supply circuit sets up in this cavity, the inlet wire end is connected through the external conductor who sets up in the base inner chamber electricity between the switch power supply circuit, intelligent control mechanism is connected with switching power supply circuit electricity, current transformer is including the protection monitoring mutual-inductor that is used for detecting the heavy current characteristic and the measurement monitoring mutual-inductor that is used for measuring current value, the static contact passes the central point that protection monitoring mutual-inductor and measurement monitoring mutual-inductor put respectively, protection monitoring mutual-inductor and measurement monitoring mutual-inductor are connected with intelligent control mechanism electricity respectively.
2. The intelligent circuit breaker capable of simultaneously measuring current value and detecting large current characteristic as claimed in claim 1, wherein: the intelligent circuit breaker is characterized in that a protection monitoring mutual inductor and a metering monitoring mutual inductor which are used for enabling a connecting sheet to sequentially penetrate are arranged on the connecting sheet of each static contact in the intelligent circuit breaker in a matched mode, a mutual inductor seat used for containing the first protection monitoring mutual inductor and the metering monitoring mutual inductor is further arranged in the base, and the protection monitoring mutual inductor and the metering monitoring mutual inductor are transversely abutted against each other.
3. The intelligent circuit breaker capable of simultaneously measuring current value and detecting large current characteristic as claimed in claim 2, wherein: the external lead comprises an electric connection sheet electrically connected with the wire inlet end and a flexible lead welded on the electric connection sheet and electrically connected with the switch power supply circuit, the flexible lead is vertically arranged in the shell, one end of the flexible lead is welded with the electric connection sheet at the bottom of the base, and the other end of the flexible lead extends into the cavity and is electrically connected with the switch power supply circuit.
4. The intelligent circuit breaker capable of simultaneously measuring current value and detecting large current characteristic as claimed in claim 3, wherein: the built-in switching power supply separately controlled intelligent molded case circuit breaker access power supply is more than two phases of power supplies, the more than two wire inlet ends are provided with electric connection pieces electrically connected with the wire inlet ends, flexible wires extending out in a welding mode are further arranged on the electric connection pieces, the electric connection pieces are welded on the wire connecting ends and located between the bottom of the inner cavity of the base and the insulating shell of the contact unit, the electric connection pieces extend to the lower portion of the cavity along the shape bending of the insulating shell of the contact unit, and finally the flexible wires soldered on the electric connection pieces are led to the cavity to be electrically connected with the switching power supply circuit.
5. The intelligent circuit breaker capable of simultaneously measuring current value and detecting large current characteristic as claimed in claim 4, wherein: the switching power supply circuit comprises a switching power supply access socket and a switching power supply output socket, the flexible lead is connected out and then is plugged into the switching power supply access socket, and the switching power supply output socket is electrically connected with the control circuit.
6. The intelligent circuit breaker capable of simultaneously measuring current value and detecting large current characteristic as claimed in claim 5, wherein: the switching power supply circuit is also provided with a connecting shell for placing a circuit board of the switching power supply circuit, the connecting shell can be adaptively connected with more than two types of molded case circuit breakers of shell frame models, and cavities of the adaptively connected molded case circuit breakers are initially used for placing
And a placing cavity for the state switching circuit of the breaker.
7. The intelligent circuit breaker capable of simultaneously measuring current value and detecting large current characteristic as claimed in claim 6, wherein: the model of the intelligent moulded case circuit breaker that can adapt includes 250 shell frame moulded case circuit breakers and 630 shell frame moulded case circuit breakers, connecting casing has the opening, and switching power supply circuit board sets up in this opening, and connecting casing keeps away from the opening part and is provided with the backplate that can be used to connect 250 shell frame moulded case circuit breakers to place the cavity and 630 shell frame moulded case circuit breaker to place the cavity, backplate upper portion is provided with and is used for will connecting casing fixed connection in two model circuit breakers to place the first screw connecting hole and the second screw connecting hole of cavity, still be provided with respectively on the backplate and be used for joint 250 shell frame moulded case circuit breakers to place the cavity and be used for joint 630 shell frame moulded case circuit breaker to place first joint spare and the second joint spare of cavity.
8. The intelligent circuit breaker capable of simultaneously measuring current value and detecting large current characteristic as claimed in claim 7, wherein: first screw connecting hole and second screw connecting hole support mutually and lean on and integrated into one piece, and the vertical first joint piece that is provided with on 250 shell frame moulded case circuit breaker's the cavity lateral wall of placeeing, be provided with the third screw connecting hole unanimous with first screw connecting hole size on 250 shell frame moulded case circuit breaker's the cavity of placeeing, first joint spare is for setting up in the first spacing spread groove of backplate lateral part, and when connecting the casing and installing on 250 shell frame moulded case circuit breaker, first spacing spread groove adaptable is on first joint piece, and first screw connecting hole passes through screw fixed connection with third screw connecting hole.
9. The intelligent circuit breaker capable of simultaneously measuring current value and detecting large current characteristic as claimed in claim 8, wherein: the second joint spare is including setting up in the joint groove and the joint piece on backplate surface, 630 shell frame moulded case circuit breaker place be provided with on the cavity with the unanimous fourth screw connection hole of second screw connection hole size, the cavity of placeeing on the 630 shell frame moulded case circuit breaker is provided with the splice bar, contact unit insulating casing upper surface on the 630 shell frame moulded case circuit breaker is provided with the spacing spread groove of second, when connecting casing and installing on 630 shell frame moulded case circuit breaker, but the joint groove adaptation is on the splice bar, but the joint piece joint is on the spacing spread groove of second, second screw connection hole and fourth screw connection hole pass through screw fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022808729.5U CN214753583U (en) | 2020-11-27 | 2020-11-27 | Intelligent circuit breaker capable of simultaneously measuring current value and detecting large current characteristic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022808729.5U CN214753583U (en) | 2020-11-27 | 2020-11-27 | Intelligent circuit breaker capable of simultaneously measuring current value and detecting large current characteristic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214753583U true CN214753583U (en) | 2021-11-16 |
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ID=78618589
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022808729.5U Active CN214753583U (en) | 2020-11-27 | 2020-11-27 | Intelligent circuit breaker capable of simultaneously measuring current value and detecting large current characteristic |
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| Country | Link |
|---|---|
| CN (1) | CN214753583U (en) |
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2020
- 2020-11-27 CN CN202022808729.5U patent/CN214753583U/en active Active
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