CN220022311U - Overvoltage protector - Google Patents
Overvoltage protector Download PDFInfo
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- CN220022311U CN220022311U CN202321245407.1U CN202321245407U CN220022311U CN 220022311 U CN220022311 U CN 220022311U CN 202321245407 U CN202321245407 U CN 202321245407U CN 220022311 U CN220022311 U CN 220022311U
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- overvoltage
- protector
- overvoltage protector
- protecting
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- 230000001012 protector Effects 0.000 title claims abstract description 64
- 230000016507 interphase Effects 0.000 abstract description 7
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000003449 preventive effect Effects 0.000 description 4
- 238000010998 test method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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Abstract
The present utility model provides an overvoltage protector, comprising: the surface of mount pad is installed the protector main part from left to right in proper order, and a plurality of the connecting wire is connected in a plurality of the one end of protector main part respectively, a plurality of the connector is connected in a plurality of the one end of connecting wire respectively. According to the overvoltage protector provided by the utility model, the plurality of pressure maintaining device bodies with the connecting wires and the connecting heads are arranged on the surface of the mounting seat, so that the overvoltage protector can be used for protecting the interphase overvoltage of the traditional overvoltage protector, protecting the interphase overvoltage, particularly protecting the interception overvoltage and reburning overvoltage generated by the breaking of the vacuum circuit breaker, and can be used for protecting electric equipment such as a transformer, a switch, a bus and a motor, and protecting the interception overvoltage and various operation overvoltages caused by the breaking of the atmospheric overvoltage and the vacuum circuit breaker.
Description
Technical Field
The utility model relates to the field of voltage protectors, in particular to an overvoltage protector.
Background
The voltage protector is a novel overvoltage protector, is mainly used in power grids of power generation, power supply and power utilization enterprises, is used for protecting electric equipment such as transformers, switches, buses, motors and the like, can limit atmospheric overvoltage and operation overvoltage caused by various switches, and can reliably limit interphase overvoltage and overvoltage relative to ground.
At present, the traditional voltage protector is high in interphase overvoltage protection level after being connected with equipment during use, cannot provide protection for ground overvoltage, and can only provide protection for interphase overvoltage, so that the traditional voltage protector is single in functionality.
Accordingly, there is a need to provide an overvoltage protector that solves the above-mentioned technical problems.
Disclosure of Invention
The utility model provides an overvoltage protector, which solves the problem that the traditional overvoltage protector has single use function.
In order to solve the above technical problems, the present utility model provides an overvoltage protector, including:
the surface of the mounting seat is provided with a protector main body in sequence from left to right;
a plurality of connecting wires connected to one ends of the plurality of protector bodies, respectively;
the connectors are respectively connected to one ends of the connecting wires.
Preferably, one side of the mounting seat is connected with a connector lug.
Preferably, a mounting hole is formed in one end of the connecting wire, and a mounting block is arranged in the mounting hole.
Preferably, the surface of the mounting block is sleeved with a conductive block.
Preferably, the inside of mounting hole is provided with coupling assembling, coupling assembling is including dismantling the head, the both sides of dismantling the head all are connected with the locating piece.
Preferably, the end part of the connecting line is provided with a positioning groove matched with the two positioning blocks, and an arc-shaped hidden groove is formed in the connecting line and positioned on one side opposite to the positioning groove.
Compared with the related art, the overvoltage protector provided by the utility model has the following beneficial effects:
the utility model provides an overvoltage protector, wherein a plurality of pressure maintaining device bodies with connecting wires and connectors are arranged on the surface of a mounting seat, so that the overvoltage protector can provide weak protection level for interphase overvoltage of the traditional overvoltage protector, can provide protection for the interphase overvoltage, particularly has good protection effect on interception overvoltage and reburning overvoltage generated by the breaking of a vacuum circuit breaker, is mainly used for protecting electric equipment such as a transformer, a switch, a bus and a motor, and has good protection effect on interception overvoltage and various operation overvoltages caused by the breaking of the vacuum circuit breaker.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of an overvoltage protector according to the present utility model;
FIG. 2 is a bottom view of the device of FIG. 1 as a whole;
FIG. 3 is a schematic diagram of a second embodiment of an overvoltage protector according to the present utility model;
FIG. 4 is a schematic structural view of the connecting wire shown in FIG. 3;
FIG. 5 is an enlarged schematic view of portion A shown in FIG. 4;
FIG. 6 is a schematic diagram of the whole structure of the connecting wire shown in FIG. 4;
FIG. 7 is a schematic view of an end structure of the connecting wire shown in FIG. 3;
fig. 8 is an enlarged schematic view of the portion B shown in fig. 7.
Reference numerals in the drawings: 1. mounting seat, 2, protector main part, 3, connecting wire, 4, connector, 5, connector lug, 6, mounting hole, 7, installation piece, 8, conductive block, 9, coupling assembling, 91, dismantlement head, 92, locating piece, 93, constant head tank, 94, arc blind groove.
Detailed Description
The utility model will be further described with reference to the drawings and embodiments.
First embodiment
Referring to fig. 1 and fig. 2 in combination, fig. 1 is a schematic structural diagram of a first embodiment of an overvoltage protector according to the present utility model; fig. 2 is a bottom view of the device shown in fig. 1 as a whole. An overvoltage protector comprising:
the mounting seat 1, wherein the surface of the mounting seat 1 is provided with a protector main body 2 in sequence from left to right;
a plurality of connection lines 3, the plurality of connection lines 3 being connected to one ends of the plurality of protector bodies 2, respectively;
the connectors 4 are respectively connected to one ends of the connecting wires 3.
One side of the mounting seat 1 is connected with a connector lug 5.
Normal use condition
Is suitable for indoor and outdoor;
ambient temperature: not lower than-40 ℃ and not higher than +40 ℃;
the altitude is not more than 3000-5000m (which needs to be described in advance)
Grid frequency: 48-52 Hz (50 Hz system), 58-62 Hz (60 Hz system);
the power frequency voltage applied between the terminals of the overvoltage protector for a long time does not exceed the continuous operation voltage of the overvoltage protector;
earthquake intensity is 7 degrees and below;
the maximum wind speed is not more than 35m/s.
Preventive test method
Before the product is put into operation and every year in use, preventive tests are carried out between two units of phase-phase and phase-ground respectively, and the test method is as follows:
(1) The preventive test method of the three-phase combined overvoltage protector comprises the following steps:
a. DC 1mA reference voltage test: and applying direct current voltage to two ends of the overvoltage protector, and reading out the voltage value at the moment when the current flowing through the overvoltage protector is stabilized at 1mA, wherein the value meets the specification in the technical parameter table.
b. Leakage current test: a reference voltage value of 0.75 times of direct current 1mA is applied to two ends of the overvoltage protector, and the current flowing through the overvoltage protector is not more than 50 mu A.
c. The gapless overvoltage protector cannot perform an operating frequency discharge voltage test.
(2) The preventive test method of the three-phase combined composite outer sleeve with the series gap overvoltage protector comprises the following steps:
a. and (3) power frequency discharge voltage test: when the primary side of the test transformer is connected with an ammeter in series, voltage is uniformly applied from zero to observe the ammeter in a test, when the ammeter is suddenly changed, gap discharge is indicated, the voltage value at the moment is a power frequency discharge voltage value, after each discharge, a power frequency power supply is cut off within 0.2S, the test interval is not less than 10S every two times, the measurement times are 3 times, and the average value of the three times accords with the specified value in the technical parameter table.
b. Conduction current test: a DC voltage is applied to both ends of the overvoltage protector, and the applied voltage value is the system nominal voltage of the overvoltage protector, and the current flowing through the overvoltage protector is not more than 20 mu A.
c. The overvoltage protector with the series gap cannot perform a direct current 1mA reference voltage test.
(3) The overvoltage protector is strictly forbidden to perform an insulation tolerance test, and when other equipment of the system performs the insulation tolerance test, the overvoltage protector and the equipment are disconnected.
Installation requirements
(1) The standard length of the 10kV,20kV and 35kV high-voltage insulated wires is 5OOmm, and the use unit can set the length requirement as required. The high-voltage wire is forbidden to be crossed and connected with each other, is forbidden to be lapped, knotted or is close to other conductors during the use, and the effective national standard air insulation is required to be met, so that the aging or single-phase explosion of the high-voltage wire is avoided.
The grounding proposal selects multi-strand tinned flat copper wire connection: the diameter of the section of the wire is 6kV,10kV,20kV is more than or equal to 10mm < 2 >, 35kV is more than or equal to 16mm < 2 >, and 110kV is more than or equal to 25mm < 2 >.
The high-voltage wire of the overvoltage protector is forbidden to be pulled and knotted in the process of installation, carrying and displacement.
Compared with the related art, the overvoltage protector provided by the utility model has the following beneficial effects:
the utility model provides an overvoltage protector, wherein a plurality of pressure maintaining device bodies 2 with connecting wires 3 and connectors 4 are arranged on the surface of a mounting seat 1, so that the overvoltage protector can provide weak overvoltage protection level among phases of the traditional overvoltage protector, can provide protection for earth overvoltage, has good protection effect on the overvoltage among phases, particularly on interception overvoltage and reburning overvoltage generated by the break of a vacuum circuit breaker, is mainly used for protecting electric equipment such as a transformer, a switch, a bus, a motor and the like, and has good protection effect on interception overvoltage caused by the break of the atmosphere overvoltage and the vacuum circuit breaker and various operation overvoltages.
Second embodiment
Referring to fig. 3, fig. 4, fig. 5, fig. 6, fig. 7 and fig. 8 in combination, another overvoltage protector is provided according to a second embodiment of the present utility model. The second embodiment is merely a preferred manner of the first embodiment, and implementation of the second embodiment does not affect the implementation of the first embodiment alone.
Specifically, the second embodiment of the present utility model provides an overvoltage protector, which is different in that a mounting hole 6 is formed at one end of the connecting wire 3, and a mounting block 7 is disposed inside the mounting hole 6.
The surface of the mounting block 7 is sleeved with a conductive block 8.
The conductive block 8 is sleeved on the surface of the mounting block 7, and the conductive block 8 is circular.
The inside of mounting hole 6 is provided with coupling assembling 9, coupling assembling 9 is including dismantling head 91, the both sides of dismantling head 91 all are connected with locating piece 92.
When in use, when the small-sized mounting block 7 is mounted, the dismounting head 91 with the positioning block 92 is placed in the mounting hole 6, meanwhile, the positioning block 92 moves to the inside of the positioning groove 93, and after the positioning block 92 moves to the inside of the positioning groove 93, the dismounting head 91 is rotated to drive the positioning block 92 to move the inside of the arc-shaped hidden groove 94.
The end of the connecting wire 3 is provided with a positioning groove 93 which is matched with the two positioning blocks 92, and an arc-shaped hidden groove 94 is formed in the connecting wire 3 and positioned on one side opposite to the positioning groove 93.
The working principle of the overvoltage protector provided by the utility model is as follows:
when in use, when the connector 4 is replaced, the connector 4 is rotated to drive the mounting block 7 to be separated from one end of the connecting wire 3 and the mounting hole 6.
Compared with the related art, the overvoltage protector provided by the utility model has the following beneficial effects:
the utility model provides an overvoltage protector, which is characterized in that a connecting wire 3 with a mounting hole 6 is matched with a connector 4 with a mounting block 7 and a conductive block 8, and different connectors 4 can be replaced and used.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.
Claims (6)
1. An overvoltage protector, comprising:
the surface of the mounting seat is provided with a protector main body in sequence from left to right;
a plurality of connecting wires connected to one ends of the plurality of protector bodies, respectively;
the connectors are respectively connected to one ends of the connecting wires.
2. The overvoltage protector of claim 1 wherein one side of the mounting block is connected to a connector lug.
3. The overvoltage protector of claim 1, wherein one end of the connecting wire is provided with a mounting hole, and a mounting block is disposed inside the mounting hole.
4. The overvoltage protector of claim 3, wherein the surface of the mounting block is sleeved with a conductive block.
5. The overvoltage protector of claim 4, wherein a connection assembly is provided inside the mounting hole, the connection assembly including a disassembly head, the disassembly head having positioning blocks connected to both sides thereof.
6. The overvoltage protector as set forth in claim 5, wherein the end portion of the connecting wire is provided with positioning grooves adapted to the two positioning blocks, and an arc-shaped blind groove is formed in the connecting wire and located on the opposite side of the positioning grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321245407.1U CN220022311U (en) | 2023-05-23 | 2023-05-23 | Overvoltage protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321245407.1U CN220022311U (en) | 2023-05-23 | 2023-05-23 | Overvoltage protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220022311U true CN220022311U (en) | 2023-11-14 |
Family
ID=88676669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321245407.1U Active CN220022311U (en) | 2023-05-23 | 2023-05-23 | Overvoltage protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220022311U (en) |
-
2023
- 2023-05-23 CN CN202321245407.1U patent/CN220022311U/en active Active
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