CN213484506U - Zero line fault protector - Google Patents
Zero line fault protector Download PDFInfo
- Publication number
- CN213484506U CN213484506U CN202021355633.1U CN202021355633U CN213484506U CN 213484506 U CN213484506 U CN 213484506U CN 202021355633 U CN202021355633 U CN 202021355633U CN 213484506 U CN213484506 U CN 213484506U
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- CN
- China
- Prior art keywords
- air switch
- bolt
- protector
- zero line
- overfire air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000001012 protector Effects 0.000 title claims abstract description 22
- 238000005070 sampling Methods 0.000 claims abstract description 11
- 229910000679 solder Inorganic materials 0.000 claims abstract description 8
- 230000007935 neutral effect Effects 0.000 claims description 6
- 238000003466 welding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- LAXBNTIAOJWAOP-UHFFFAOYSA-N 2-chlorobiphenyl Chemical compound ClC1=CC=CC=C1C1=CC=CC=C1 LAXBNTIAOJWAOP-UHFFFAOYSA-N 0.000 description 1
- 101710149812 Pyruvate carboxylase 1 Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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Abstract
The utility model discloses a zero line fault protector, include the casing and install at the inside overfire air switch of casing, its characterized in that, the top of overfire air switch all is equipped with power input bolt, and the below of overfire air switch all is equipped with power output bolt, is equipped with the voltage sampling solder joint between overfire air switch and the power output bolt, and the voltage sampling solder joint passes through the wire and is connected with the PCB board, still is connected with the shunt release on the PCB board, and the shunt release still is connected with the trip bar, and the trip bar is connected with the overfire air switch, the utility model discloses zero line fault protector can protect electrical equipment not damaged by the overvoltage. When the overvoltage comes, the protector can quickly cut off the power supply, so that various electric appliances are effectively protected. If the fault is not eliminated, the protector can not be switched on.
Description
Technical Field
The utility model relates to the field of electric power technology, specifically a zero line fault protection ware.
Background
In recent years, electrical equipment is damaged due to the rise of voltage all over the country, and an electrical fire frequently occurs, so that normal electricity consumption in production and life is seriously influenced, and great troubles and losses are caused to power enterprises and vast power consumers. In a low-voltage distribution network with three-phase four-wire system power supply, faults such as zero line disconnection and the like are often caused by resonance, operation, nature or human factors. The faults can cause unbalance of three-phase voltages, namely, some phase voltages are too high, and electric appliances can be burnt; some phase voltages are too low to be used electrically, and many of the faults are caused by faults of the zero line.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a zero line fault protector to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a zero line fault protector, includes the casing and installs the inside air switch that overflows at the casing, its characterized in that, the top of overflowing air switch all is equipped with power input bolt, and the below of overflowing air switch all is equipped with power output bolt, is equipped with voltage sampling solder joint between overflowing air switch and the power output bolt, and voltage sampling solder joint passes through the wire and is connected with the PCB board, still is connected with the shunt release on the PCB board, and the shunt release still is connected with the trip bar, and the trip bar is connected with overflowing air switch.
As a further technical solution of the present invention: and the PCB is provided with a fixing bolt for fixing.
As a further technical solution of the present invention: the zero line connecting device further comprises an input bolt and an output bolt which are used for connecting the zero line.
As a further technical solution of the present invention: the over-current air switches are three and respectively correspond to A, B, C three phases of a three-phase power supply.
As a further technical solution of the present invention: and one over-current air switch corresponds to single-phase alternating current.
As a further technical solution of the present invention: when the voltage sampling welding spot detects voltage overvoltage, the PCB controls the trip bar to move through the shunt release to drive the overcurrent air switch to act.
As a further technical solution of the present invention: the shell is a plastic shell.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses zero line fault protection ware can protect electrical equipment not damaged by the overvoltage. When the overvoltage comes, the protector can quickly cut off the power supply, so that various electric appliances are effectively protected. If the fault is not eliminated, the protector can not be switched on.
Drawings
Fig. 1 is a general structure diagram of the present invention.
Fig. 2 is a protection schematic diagram of the present invention.
In the figure: the device comprises a PCB (printed circuit board) -1, a fixing bolt-2, a power output bolt-3, a power input bolt-4, an overcurrent air switch-5, a trip bar-6, a voltage sampling welding spot-7 and a shunt release-8.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, example 1: the utility model provides a zero line fault protector, includes the casing and installs at the inside overfire air switch 5 of casing, its characterized in that, the top of overfire air switch 5 all is equipped with power input bolt 4, and the below of overfire air switch 5 all is equipped with power output bolt 3, is equipped with voltage sampling solder joint 7 between overfire air switch 5 and the power output bolt 3, and voltage sampling solder joint 7 passes through the wire and is connected with PCB board 1, still is connected with shunt release 8 on the PCB board 1, and shunt release 8 still is connected with trip bar 6, and trip bar 6 is connected with overfire air switch 5. The PCB board 1 is provided with a fixing bolt 2 for fixing. The zero line connecting device further comprises an input bolt and an output bolt which are used for connecting the zero line.
The overcurrent air switch 5 can be one, a plurality of or a plurality of switches on one branch line, as shown in fig. 1, three switches are provided, which correspond to A, B, C three phases of a three-phase power supply respectively. When only one of the three-phase alternating current is available, the single-phase alternating current corresponds to the single-phase alternating current.
In use, as shown in fig. 2, the design is incorporated into a circuit,
when the voltage sampling welding point 7 detects voltage overvoltage, the PCB 1 controls the trip bar 6 to move through the shunt release 8, and drives the overcurrent air switch 5 to act. The electrical equipment can be protected from being damaged by overvoltage. When the overvoltage comes, the protector can quickly cut off the power supply, so that various electric appliances are effectively protected. If the fault is not eliminated, the protector can not be switched on.
When the zero line of the power supply side line has a fault, the potential of a neutral point below a fault point shifts, so that the voltage rises, the protector acts, and the electric appliance on the load side is protected, so that the protector is the most suitable position before being installed on an electric meter. A fuse, a miniature circuit breaker or a leakage protector and the like are arranged below the ammeter, and a common molded case circuit breaker is arranged at the head end of the branch line, so that the distribution line and the electric equipment can be protected perfectly. Therefore, the protector can be installed at the outlet of the transformer, the inlet of the building unit and even each household. Besides the action under the overvoltage caused by the fault of the zero line, the action under the overvoltage generated by the overhigh voltage of the outlet wire of the transformer station and other faults can be carried out.
Embodiment 2, on the basis of embodiment 1, the casing is the plastics casing, adopts the common circuit breaker casing on the market can, does not need independent preparation, uses and changes the convenience.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides a zero line fault protector, includes the casing and installs inside overflowed air switch (5) at the casing, a serial communication port, the top of overflowed air switch (5) all is equipped with power input bolt (4), the below of overflowed air switch (5) all is equipped with power output bolt (3), be equipped with voltage sampling solder joint (7) between overflowed air switch (5) and power output bolt (3), voltage sampling solder joint (7) are connected with PCB board (1) through the wire, still be connected with shunt release (8) on PCB board (1), shunt release (8) still are connected with trip bar (6), trip bar (6) are connected with overflowed air switch (5).
2. A neutral fault protector according to claim 1, characterized in that the PCB board (1) is provided with fixing bolts (2) for fixing.
3. A neutral fault protector according to claim 2 further including an input bolt and an output bolt for connection to a neutral.
4. A neutral fault protector according to claim 1, characterised in that there are three said overcurrent air switches (5), each corresponding to A, B, C three phases of a three-phase power supply.
5. A neutral fault protector according to claim 1 in which there is one of said overcurrent air switches (5) for single phase ac.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021355633.1U CN213484506U (en) | 2020-07-12 | 2020-07-12 | Zero line fault protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021355633.1U CN213484506U (en) | 2020-07-12 | 2020-07-12 | Zero line fault protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213484506U true CN213484506U (en) | 2021-06-18 |
Family
ID=76360197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021355633.1U Active CN213484506U (en) | 2020-07-12 | 2020-07-12 | Zero line fault protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213484506U (en) |
-
2020
- 2020-07-12 CN CN202021355633.1U patent/CN213484506U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231124 Address after: 130000 people's street, Chaoyang District, Changchun City, Jilin Province 4629 Patentee after: CHANGCHUN POWER SUPPLY COMPANY OF STATE GRID JILINSHENG ELECTRIC POWER SUPPLY Co. Address before: 210019 room 1301, 13 / F, building a, 300 Xicheng Road, Jianye District, Nanjing City, Jiangsu Province Patentee before: Jiangsu anzhiji Technology Development Co.,Ltd. |