CN114420511B - Automatic reclosing device for circuit breaker - Google Patents
Automatic reclosing device for circuit breaker Download PDFInfo
- Publication number
- CN114420511B CN114420511B CN202210204034.7A CN202210204034A CN114420511B CN 114420511 B CN114420511 B CN 114420511B CN 202210204034 A CN202210204034 A CN 202210204034A CN 114420511 B CN114420511 B CN 114420511B
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- plate
- circuit breaker
- switch
- rotating column
- pushing
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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
- H01H71/04—Means for indicating condition of the switching device
-
- 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
- H01H71/10—Operating or release mechanisms
- H01H71/66—Power reset mechanisms
- H01H71/70—Power reset mechanisms actuated by electric motor
-
- 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
- H01H71/04—Means for indicating condition of the switching device
- H01H2071/044—Monitoring, detection or measuring systems to establish the end of life of the switching device, can also contain other on-line monitoring systems, e.g. for detecting mechanical failures
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Abstract
The invention discloses an automatic reclosing device for a circuit breaker, which comprises: the shell cover is matched with the side shell surface of the circuit breaker in a superposition manner, a positioning shaft which is arranged in an isosceles right triangle manner is arranged in the shell cover, the positioning shaft at the upper end is coaxially arranged with the electric switch, and reclosing assemblies which are symmetrically arranged in a left-right manner are matched on the positioning shafts at the left side and the right side and the shell cover surface; a rotary pushing block sleeved outside the electric switch is rotated; and the touch arc plate is arranged on the outer protection edge of the annular surface of the switch shaft of the electric brake and used for triggering and controlling a fault detection module arranged in the middle of the shell to perform fault detection on the condition of closing the switch of the electric brake.
Description
Technical Field
The invention relates to the technical field of reclosing of circuit breakers, in particular to an automatic reclosing device for a circuit breaker.
Background
The existing circuit breaker reclosing device is low in reclosing efficiency in the reclosing process, wherein in particular, some devices adopting motors for driving and regulating are used, the motors cannot brake instantly due to the inertia action of the motor rotor, so that in the reclosing process, the accuracy of pushing a switch of the switch is high, the switch is completely closed due to insufficient thrust or the thrust is high, the switch is caused to be subjected to high thrust, breakage is generated, the reason of closing the switch cannot be judged, the switch is directly closed, further the switch is closed again, and accordingly the potential safety hazard is high.
Accordingly, a person skilled in the art provides an automatic reclosing device for a circuit breaker to solve the above-mentioned problems in the background art.
Disclosure of Invention
In order to achieve the above purpose, the present invention provides the following technical solutions: an automatic reclosing device for a circuit breaker, comprising:
the shell cover is matched with the side shell surface of the circuit breaker in a superposition manner, a positioning shaft which is arranged in an isosceles right triangle manner is arranged in the shell cover, the positioning shaft at the upper end is coaxially arranged with the electric switch, and reclosing assemblies which are symmetrically arranged in a left-right manner are matched on the positioning shafts at the left side and the right side and the shell cover surface;
a rotary pushing block sleeved outside the electric switch is rotated; and
the contact arc plate is arranged on the outer protection edge of the annular surface of the switch shaft of the electric brake and used for triggering and controlling the fault detection module arranged in the middle of the shell to detect the fault of the switch-off condition of the electric brake.
As a preferred technical scheme of the invention, a plurality of temperature monitoring elements for monitoring the internal temperature of the circuit breaker are also distributed in the shell.
As a preferable technical scheme of the invention, a fixed ring plate is coaxially arranged outside the positioning shaft at the upper end, an arc-shaped monitoring lamp belt is arranged on the upper half circle plate surface of the fixed ring plate, red lamps and green lamps are correspondingly arranged on the left and right 45-degree inclined monitoring lamp belts on the monitoring lamp belt respectively, and sensing pointers arranged on the switch plate surface are cooperatively controlled.
As a preferred technical solution of the present invention, the rotary pushing block includes: the rotary arc plate is sleeved on and rotationally connected to the outer side of the electric brake switch shaft part, the pushing plate is fixed to the left end and the right end of the rotary arc plate and parallel to the side face of the electric brake switch rod part, and the rotary column I is arranged in the middle of the rotary arc plate.
As a preferable technical scheme of the invention, a pressure sensing pad is arranged on a side plate surface of the push plate which is in surface contact with the switch lever of the electric brake.
As a preferred technical solution of the present invention, the touch arc plate includes:
an arc pressing plate seat fixed on the annular surface of the switch shaft of the electric brake, and a gap cavity is reserved between the rear plate surface of the right end plate and the front arc plate surface of the pushing plate;
the arc pressing plate is arranged on the arc pressing plate seat, and the outer cambered surface of the upper end of the arc pressing plate is tangent with the right side cambered edge of the pushing plate.
As a preferred embodiment of the present invention, the fault detection module includes:
a control module;
the upper end of the first reset spring is provided with a connecting sliding block which is in sliding connection with the sliding guide rail, and the upper end of the connecting sliding block is provided with a second U-shaped conductor;
the lower end of the pushing column is fixed with the bottom end of the middle part of the conductor II, and the upper end of the pushing column is provided with a freely rotating short pressing roller; and
and the first conductor is connected with the left side surface and the right side surface of the second conductor in a bonding way, and the first conductor on the left side and the right side is communicated with the control module through a wire.
As a preferred technical solution of the present invention, the recloser assembly includes:
a motor mounted on the housing, the output shaft of which is provided with a main bevel gear;
a first spur gear arranged on the shell cover, and a secondary bevel gear meshed with the primary bevel gear is coaxially fixed on the front side surface of the first spur gear;
a second spur gear rotatably mounted on the right positioning shaft and meshed with the first spur gear, and a second rotating column is mounted on the front wheel surface of the outer edge of the second spur gear;
the push-pull plate frame comprises an upper plate body with a telescopic structure and a lower plate body which is fixed with the upper plate body and provided with a telescopic cavity, and the upper end of the upper plate body is rotatably arranged on the first rotating column; and
the elastic telescopic piece comprises a telescopic guide rod which is positioned at the shaft part and stretches freely, and a pushing spring which is sleeved outside the telescopic guide rod and the upper end and the lower end of which are respectively connected with the upper end and the lower end of the telescopic guide rod, wherein the upper end and the lower end of the telescopic guide rod are respectively fixed with the upper end of a telescopic chamber, and the upper end and the lower end of the telescopic guide rod are respectively connected with a rotating column in a rotating way.
As a preferable technical scheme of the invention, the radius of the second track of the rotating column is three times of the radius of the first track of the rotating column.
As a preferable technical scheme of the invention, the distance between the lower end of the elastic expansion piece and the rotating column I when the elastic expansion piece is at the minimum compression amount is smaller than the distance between the lower end of the elastic expansion piece and the nearest moving track of the rotating column II when the rotating column I moves to the leftmost end.
Compared with the prior art, the invention provides an automatic reclosing device for a circuit breaker, which has the following beneficial effects:
according to the invention, the tripping fault judgment is carried out on the passively tripped electric switch, and the tripping fault is fed back in time, so that the electric switch is not reclosed blindly, potential safety hazards are caused to the circuit, the switching-on safety of the electric switch is improved, the electric output rotation energy of the army is braked, the switching-on success rate, switching-on strength and accuracy are improved through the repeated switching-on procedures, the damage of a motor due to larger torsion force during the conventional motor braking is avoided, and the subsequent regulation and control accuracy of the motor is greatly and continuously reduced.
Drawings
FIG. 1 is a schematic diagram of an automatic reclosing device according to the present invention;
FIG. 2 is an enlarged schematic view of a partial structure of a fault detection module according to the present invention;
FIG. 3 is a schematic view of a recloser assembly according to the present invention;
in the figure: 1. a housing; 2. an electric brake switch; 3. a rotary pushing block; 4. touching and pressing an arc plate; 5. a reclosing assembly; 6. a fault detection module; 7. a temperature monitoring element; 8. monitoring the lamp strip; 9. positioning a shaft; 31. a rotary arc plate; 32. a push plate; 33. a pressure sensing pad; 41. an arc pressing plate seat; 42. arc pressing strip plates; 61. a control module; 62. a first conductor; 63. a sliding guide rail; 64. a first reset spring; 65. a second conductor; 66. pushing and pressing the column; 67. a second reset spring; 68. short press rolls; 51. a motor; 52. a main bevel gear; 53. a slave bevel gear; 54. a spur gear I; 55. a spur gear II; 56. rotating the second column; 57. push-pull plate frame; 58. an elastic expansion piece.
Detailed Description
Referring to fig. 1-3, the present invention provides a technical solution: an automatic reclosing device for a circuit breaker, comprising:
the circuit breaker is characterized in that a shell cover 1 matched with the side shell surface of the circuit breaker in a superposition manner is internally provided with positioning shafts 9 distributed in an isosceles right triangle manner, the positioning shafts 9 at the upper end are coaxially arranged with a switch 2, and reclosing assemblies 5 which are symmetrically arranged in a left-right manner are matched on the positioning shafts 9 at the left side and the right side and the surface of the shell cover 1;
a rotary pushing block 3 sleeved outside the electric switch 2 is rotated; and
the touch arc plate 4 is arranged on the outer protection edge of the shaft ring surface of the electric brake switch 2 and used for triggering and controlling the fault detection module 6 arranged in the middle of the shell cover 1 to perform fault detection on the condition of closing the electric brake switch;
in fig. 1, the switch state of the electric brake is a closed state, and the electric brake is turned to the right and fixed in a closed state, wherein the reclosing assemblies positioned at the left and right sides are respectively used for actively closing and actively closing the electric brake switch, and passively closing the electric brake caused by a fault generated after the electric brake is closed.
In this embodiment, the inside of the housing 1 is further provided with a plurality of temperature monitoring elements 7 for monitoring the temperature inside the circuit breaker, so that the temperature of the circuit breaker is monitored, and therefore, the tripping reason of the electric switch can be rapidly determined, that is, when the temperature rises, the electric switch is tripped for overload, so that as a best embodiment, the temperature monitoring elements are provided with a reclosing assembly on the right side for feedback, and a time is spaced, the reclosing assembly on the right side is closed, and the process is a closing step of overload tripping in fault tripping, and a closing step in regulating and controlling closing and closing are actively performed.
In this embodiment, be located the upper end the outside of location axle 9 still coaxial fixed ring board that is equipped with, arc monitoring lamp area 8 is installed to fixed ring board upper half circle face, and is located on the monitoring lamp area of left and right slope 45 on the monitoring lamp area 8 corresponds respectively installs red light, green light to set up the sensing pointer cooperation control on electric brake switch 2 face, when the sensing pointer revolves to the left side, the monitoring lamp area lights the red light, otherwise, lights the green light, thereby reachs the state that electric brake switch is in the closing a floodgate fast.
In this embodiment, the rotary pushing block 3 includes: the rotary arc plate 31 is sleeved on and rotationally connected to the outer side of the shaft part of the electric switch 2, the pushing plates 32 are fixed at the left end and the right end of the rotary arc plate 31 and are parallel to the side surface of the rod part of the electric switch, and the rotary column I34 is arranged in the middle of the arc plate of the rotary arc plate 31.
In this embodiment, the side plate surface of the pushing plate 32 in surface contact with the switch lever is provided with the pressure sensing pad 33, and when the pressure sensing pad on the left side is impacted by pressure, the switch-off of the switch can be monitored, and the judgment is performed according to the monitoring data of the temperature monitoring element, if the temperature monitoring element does not monitor the temperature change of the circuit breaker, the temperature change is other tripping reasons, at this time, the pressure sensing pad feeds back to the reclosing assembly, and the reclosing assembly is prevented from being closed, and the circuit maintenance is needed, so that the judgment of whether to perform reclosing is more flexible and accurate when tripping, especially when tripping to faults, is improved, and the safety of reclosing is improved.
In this embodiment, the touch arc plate 4 includes:
an arc pressing plate seat 41 fixed on the shaft ring surface of the electric switch 2, and a gap cavity is reserved between the rear plate surface of the right end plate and the front arc plate surface of the pushing plate 32 so as to facilitate the running movement of the push-pull plate frame in the reclosing assembly;
the arc pressing plate installed on the arc pressing plate seat 41 has an outer arc surface at the upper end tangent to the right arc edge of the pushing plate 32.
In this embodiment, the fault detection module 6 includes:
a control module 61 for receiving and processing feedback data;
the bottom end of the center of the sliding guide rail 63 is provided with a first return spring 64, the upper end of the first return spring 64 is provided with a connecting sliding block which is in sliding connection with the sliding guide rail 63, and the upper end of the connecting sliding block is provided with a second U-shaped conductor 65;
the lower end of the pushing post 66 is fixed with the bottom end of the middle part of the second conductor 65, and the upper end of the pushing post is provided with a freely rotating short pressing roller 68; and
a first conductor 62 which is connected with the left and right sides of the second conductor 65 in a bonding way, and the first conductor 62 on the left and right sides is communicated with the control module 61 through a wire;
the short press roller is pressed by the arc pressing strip plate to move downwards to drive the second conductor to be in contact communication with the first conductor, so that the fault detection module is started, the required electric quantity during long-term use is improved, and the 'symbiotic co-extinction' with the generated tripping fault is formed, so that resources are saved.
In this embodiment, the reclosing assembly 5 includes:
a motor 51 mounted on the housing 1, an output shaft portion of which is mounted with a main bevel gear 52;
a spur gear 54 mounted on the housing 1, the front side of which is coaxially fixed with a slave bevel gear 53 engaged with the master bevel gear 52;
a second spur gear 55 rotatably mounted on the right positioning shaft 9 and engaged with the first spur gear 54, and a second rotary column 56 mounted on the front wheel surface of the outer edge thereof;
the push-pull plate frame 57 comprises an upper plate body with a telescopic structure and a lower plate body which is fixed with the upper plate body and provided with a telescopic cavity, and the upper end of the upper plate body is rotatably arranged on the first rotating column 34; and
the elastic telescopic piece 58 comprises a telescopic guide rod which is positioned at the shaft part and is freely telescopic, and a pushing spring which is sleeved outside the telescopic guide rod, the upper end and the lower end of the pushing spring are respectively connected with the upper end and the lower end of the telescopic guide rod, the upper end and the lower end of the telescopic guide rod are respectively fixed with the upper end of the telescopic chamber, and the first rotating column 34 is rotationally connected;
in this preferred embodiment, the distance between the initial rotating column one and the rotating column two is seven times of the radius of the track of the rotating column one 34, the same length value as h shown in fig. 3 is regarded as that the same line between the nearest moving track of the rotating column two and the moving track of the rotating column one when the rotating column one moves to the leftmost end is set as a pushing critical line a, such as a right reclosing component, the deformation of the initial state of the elastic expansion piece is zero, that is, when the lower end of the elastic expansion piece moves clockwise along with the straight gear two to drive the rotating column two to move from the lowest end to be collinear with the pushing critical line a, in this process, the elastic force of the elastic expansion piece is used for countering the rotating column one and pushing the electric switch to be turned right, in the process of turning 70 ° again, the continuously increased elastic force can further ensure the required thrust intensity of the electric switch to be turned on, the elastic force which is continuously increased is elastically released by 70 degrees and is elastically released by 60 degrees, the acting force which acts on the rotating column I and is generated by the push-pull plate frame is elastically released by the opposite force, in the process, the acting effect generated by acting the acting force which acts on the rotating column I is released by the deformation of the push-pull plate frame, so that the closing process is stable, and when the elastic force is further rotated by 100 degrees, the reset of the push-pull plate frame and the rotating pushing block is completed, a closing cycle is formed, after the closing is finished, the motor stops running, the rotor continuously rotates due to inertia, the excessive driving rotation amount drives the closing process to perform a plurality of closing cycles through residual kinetic energy, the motor is not only promoted to increase the acceleration running, but also the strength required by closing is promoted to be improved, wherein, in the closing process, attention is required, the left reclosing assembly does not operate.
In this embodiment, the radius of the second track 56 of the rotating column is three times the radius of the first track 34 of the rotating column.
In this embodiment, the distance between the lower end of the elastic expansion member 58 and the first rotating column 34 when the elastic expansion member is at the minimum compression is smaller than the distance between the lower end of the first rotating column 34 and the nearest moving track of the second rotating column 56 when the first rotating column 34 moves to the leftmost end, and the length of h is shown in fig. 3 as the distance between the lower end of the first rotating column and the nearest moving track of the second rotating column when the first rotating column moves to the leftmost end.
In specific implementation, the method comprises the following steps:
s1: the shell cover and the side shell surface of the circuit breaker are installed in a coincident and matched mode, and a rotary pushing block, a contact arc plate, a reclosing assembly, a fault detection module, a temperature monitoring element and a monitoring lamp strip are correspondingly installed, and switching on is carried out through the right reclosing assembly, and self-resetting is carried out;
s2: if the electric brake switch is passively closed, the temperature monitoring element and the pressure sensing pad automatically feed back to the fault detection module to perform self-detection of fault tripping, and the left reclosing assembly can be actively controlled to close the electric brake, wherein the electric brake is closed if arrearage reasons exist;
s3: if the fault trip in the S2 continuously lights the red light, a circuit is required to be overhauled or the electricity charge is required to be inquired.
The above description is only of the preferred embodiments of the invention, but the protection scope of the invention is not limited thereto, and any person skilled in the art who is skilled in the art to which the invention pertains should make equivalent substitutions or modifications according to the technical solution of the invention and its inventive concept within the scope of the invention.
Claims (6)
1. An automatic reclosing device for a circuit breaker, characterized in that: it comprises the following steps:
the circuit breaker comprises a shell cover (1) which is in superposition fit with the side shell surface of the circuit breaker, wherein a positioning shaft (9) which is arranged in an isosceles right triangle shape is arranged in the shell cover, the positioning shaft (9) at the upper end is coaxially arranged with a switch (2), and reclosing assemblies (5) which are symmetrically arranged are respectively arranged on the left and right sides of the positioning shaft (9) and the surface of the shell cover (1) in a matched manner;
a rotary pushing block (3) sleeved outside the electric switch (2) in a rotary way; and
the touch arc plate (4) is arranged on the outer protection edge of the shaft ring surface of the electric brake switch (2) and is used for triggering and controlling the fault detection module (6) arranged in the middle of the shell cover (1) to perform fault detection on the condition of closing the electric brake switch;
the rotary pushing block (3) comprises: the rotary arc plate (31) is sleeved on and rotationally connected with the outer side of the shaft part of the electric switch (2), the pushing plates (32) are fixed at the left end part and the right end part of the rotary arc plate (31) and are parallel to the side surface of the rod part of the electric switch, and a rotary column I (34) is arranged in the middle of the arc plate of the rotary arc plate (31);
the reclosing assembly (5) comprises:
a motor (51) mounted on the housing (1), the output shaft of which is mounted with a main bevel gear (52);
a spur gear I (54) mounted on the housing (1), the front side surface of which is coaxially fixed with a slave bevel gear (53) meshed with the master bevel gear (52);
a spur gear II (55) rotatably mounted on the right positioning shaft (9) and meshed with the spur gear I (54), and a rotating column II (56) is mounted on the front wheel surface near the outer edge of the spur gear II;
the push-pull plate frame (57) comprises an upper plate body with a telescopic structure and a lower plate body which is fixed with the upper plate body and provided with a telescopic cavity, and the upper end of the upper plate body is rotatably arranged on the first rotating column (34); and
the elastic telescopic piece (58) comprises a telescopic guide rod which is positioned at the shaft part and stretches freely, and a pushing spring which is sleeved outside the telescopic guide rod, the upper end and the lower end of the pushing spring are respectively connected with the upper end and the lower end of the telescopic guide rod, the upper end and the lower end of the telescopic guide rod are respectively fixed with the upper end of the telescopic chamber, and the first rotating column (34) is connected in a rotating way;
the track radius of the second rotating column (56) is three times of the track radius of the first rotating column (34);
the distance between the lower end of the elastic expansion piece (58) and the rotating column I (34) when the elastic expansion piece is at the minimum compression amount is smaller than the distance between the lower end of the elastic expansion piece and the rotating column II (56) when the rotating column I (34) moves to the leftmost end and the closest moving track of the rotating column II.
2. The recloser device for a circuit breaker according to claim 1, wherein: a plurality of temperature monitoring elements (7) for monitoring the internal temperature of the circuit breaker are also distributed in the shell cover (1).
3. The recloser device for a circuit breaker according to claim 1, wherein: the outside of locating shaft (9) that is located the upper end still coaxial fixed ring board that is equipped with, arc monitoring lamp area (8) are installed to fixed ring board upper half circle face, and are located on monitoring lamp area (8) left and right slope 45's monitoring lamp area is last to correspond respectively to install red light, green light to set up the sensing pointer cooperation control on switch (2) face.
4. The recloser device for a circuit breaker according to claim 1, wherein: a pressure sensing pad (33) is mounted on a side plate surface of a pressing plate (32) which is in surface contact with the switch lever.
5. The recloser device for a circuit breaker according to claim 1, wherein: the touch-and-press arc plate (4) comprises:
an arc pressing plate seat (41) fixed on the shaft ring surface of the electric switch (2), and a gap cavity is reserved between the rear plate surface of the right end plate and the front arc plate surface of the pushing plate (32);
the arc pressing plate is arranged on the arc pressing plate seat (41), and the outer cambered surface of the upper end of the arc pressing plate is tangent with the right side cambered edge of the pushing plate (32).
6. The recloser device for a circuit breaker according to claim 1, wherein: the fault detection module (6) comprises:
a control module (61);
the sliding guide rail (63) is provided with a first reset spring (64) at the bottom end of the center, the upper end of the first reset spring (64) is provided with a connecting sliding block which is in sliding connection with the sliding guide rail (63), and the upper end of the connecting sliding block is provided with a second U-shaped conductor (65);
the lower end of the pushing column (66) is fixed with the bottom end of the middle part of the second conductor (65), and the upper end of the pushing column is provided with a freely rotating short pressing roller (68); and
and the first conductor (62) is connected with the left side surface and the right side surface of the second conductor (65) in a bonding way, and the first conductors (62) on the left side and the right side are communicated with the control module (61) through wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210204034.7A CN114420511B (en) | 2022-03-03 | 2022-03-03 | Automatic reclosing device for circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210204034.7A CN114420511B (en) | 2022-03-03 | 2022-03-03 | Automatic reclosing device for circuit breaker |
Publications (2)
| Publication Number | Publication Date |
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| CN114420511A CN114420511A (en) | 2022-04-29 |
| CN114420511B true CN114420511B (en) | 2023-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210204034.7A Active CN114420511B (en) | 2022-03-03 | 2022-03-03 | Automatic reclosing device for circuit breaker |
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| CN (1) | CN114420511B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117198830B (en) * | 2023-09-22 | 2024-04-05 | 杭州天卓网络有限公司 | Internet of things circuit breaker applied to intelligent power and control method thereof |
| CN117872109B (en) * | 2023-12-18 | 2024-07-30 | 广东柏腾物联科技有限公司 | Automatic-verification Internet of things circuit breaker and verification control method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6903289B2 (en) * | 2003-08-28 | 2005-06-07 | Eaton Corporation | Circuit breaker employing an illuminated operating handle |
| US9620301B2 (en) * | 2014-12-03 | 2017-04-11 | Eaton Corporation | Electrical switching apparatus and contact assembly therefor |
| CN204315490U (en) * | 2014-12-25 | 2015-05-06 | 常熟开关制造有限公司(原常熟开关厂） | A kind of residual current circuit breaker with automatic reclosing function |
| CN207303009U (en) * | 2017-07-31 | 2018-05-01 | 浙江正泰电器股份有限公司 | The driving device of automatic closing breaker |
| CN110047712A (en) * | 2019-05-24 | 2019-07-23 | 苏州鳗鱼电气有限公司 | A kind of intellectual monitoring air switch |
| CN211265389U (en) * | 2020-03-03 | 2020-08-14 | 厦门恒锋力电子有限公司 | Circuit breaker with indication information |
| CN111370271A (en) * | 2020-04-16 | 2020-07-03 | 厦门大恒科技有限公司 | Automatic reclosing circuit breaker with multi-type detection module |
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Effective date of registration: 20230726 Address after: 230000 floor 1, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee after: Dragon totem Technology (Hefei) Co.,Ltd. Address before: 461000 Xuchang college, Bayi Road, Xuchang City, Henan Province Patentee before: XUCHANG University Effective date of registration: 20230726 Address after: No. 22 Niujiaoling East Street, Dagang Town, Nansha District, Guangzhou City, Guangdong Province, 510000 (self numbered 1) Patentee after: GUANGZHOU ESUN ELECTRIC TECHNOLOGY CO.,LTD. Address before: 230000 floor 1, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee before: Dragon totem Technology (Hefei) Co.,Ltd. |
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