CN2508356Y - Resonance elimilator - Google Patents
Resonance elimilator Download PDFInfo
- Publication number
- CN2508356Y CN2508356Y CN 01270384 CN01270384U CN2508356Y CN 2508356 Y CN2508356 Y CN 2508356Y CN 01270384 CN01270384 CN 01270384 CN 01270384 U CN01270384 U CN 01270384U CN 2508356 Y CN2508356 Y CN 2508356Y
- Authority
- CN
- China
- Prior art keywords
- valve plate
- clamping device
- valve block
- rainproof cover
- rain cover
- 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.)
- Expired - Fee Related
Links
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- Elimination Of Static Electricity (AREA)
Abstract
The utility model discloses a resonance eliminator, which mainly consists of a nonlinear resistor, a rainproof cover, and a clamping device. The nonlinear resistor is composed of a valve plate with the middle provided with a hole, a metal rod is threaded in the hole of the valve plate, the both ends of the metal rod make the valve plate compacted and fixed through the clamping device, the valve plate can be made of silicon carbide material, the metal rod can be a screw rod, and the clamping device can be a nut; the rainproof cover is arranged at the outer part of the valve plate in sequence to prevent from shorting nonlinear resistor because of wetting the valve plate surface during raining, a discharging gap is arranged on the rainproof cover, and the discharging gap can be adjusted through a screw. The structure of the utility model is simple, a porcelain cover is not additionally arranged at the outer part, but the rainproof cover made of metal is additionally arranged, the valve plate is not exposed, therefore playing the very good moisture proof function, and the metal rainproof cover has the very good heat radiation performance.
Description
Technical field
The utility model relates to a kind of damping resistance, and this damping resistance plays the harmonic elimination effect when 10 to 35 kilovolts of earthed voltage transformer voltage jumps.
Background technology
In 10 kilovolts or 35 kilovolts of isolated neutrals or non-effectively earthed system, because resonance overvoltage, the superpotential existence of intermittent arc grounding often causes 10 kilovolts or 35 kilovolts of earthed voltage transformers to burn or make the fuse failure of the fuse of PT, thereby cause the interruption maintenance of system, cause unnecessary loss to electric power system.
The resonance overvoltage of 10 kilovolts or 35 kilovolts isolated neutral systems is owing to the non-linear exciter inductance of voltage transformer and system's direct-to-ground capacitance bring out ferro resonance when the voltage flip-flop, showing as the PT phase-to-ground voltage increases, the open delta type high voltage occurs and causes warning system to be reported to the police, and can make the voltage transformer bigger primary current of appearance when serious and cause transformer station to have a power failure.Be head it off, in 6 to 35 kilovolts of electric power systems, generally all install damping resistance additional at 10 kilovolts of PT neutral points, facts have proved that the method is effective, " high voltage potential transformer resonance eliminator " and the Chinese patent 00221482.2 " microminiature resonance eliminator " announced for No. 85200817.1 as Chinese patent all belong to this series products.Harmonic elimination resistance in 85200817.1 and 93220495.3 patents causes the heat radiation difficulty because of the outside adds insulator, though the structure that has in other relevant patent has been removed insulator, structure is too complicated, and valve block exposes the defective that has moisture-sensitive.
Summary of the invention
The purpose of this utility model is to address the above problem, and a kind of resonance eliminator is provided, it simple in structure, its outside does not install insulator additional, heat radiation easily, and valve block do not expose, not moisture-sensitive.
The purpose of this utility model is achieved in that
A kind of resonance eliminator, mainly constitute by nonlinear resistance, rain cover, clamping device, it is characterized in that: described nonlinear resistance is made of centre valve block with holes, be installed with Metallic rod in the hole of valve block, the two ends of this Metallic rod are fixed described valve block with clamping device, and rain cover is equipped with in this valve block outside.
The material of described nonlinear resistor valve sheet is a carborundum, and described Metallic rod is a screw rod, and described clamping device is a nut.
The material of described rain cover is a metal material.
Described rain cover is provided with discharging gap.
The size of described discharging gap is by the screw adjustment.
The utility model has following positive beneficial effect:
The utility model adopts punching in the middle of nonlinear resistor valve sheet, with the fastening structure of bolt and nut, therefore simple in structure, its outside does not install insulator additional, use metal rain cover but install additional, valve block is not exposed, played good moisture-proof role, the rain cover of metal has good heat dispersion.
Description of drawings
Fig. 1 is an enforcement structural representation of the present utility model.
Accompanying drawing number
1. nonlinear resistor valve sheet 2. Metallic rod 3. rain covers
4. screw 5. bases 6. clamping devices
Embodiment
Please refer to Fig. 1, resonance eliminator of the present utility model, mainly constitute by nonlinear resistance, rain cover, clamping device, described nonlinear resistance is made of centre valve block 1 with holes, pass with Metallic rod 2 in the middle of the hole of valve block 1, the two ends of Metallic rod 2 are equipped with clamping device 6, and described valve block 1 is compressed and is fixed on the base 5, and rain cover 3 is equipped with in valve block 1 outside.
In preferred embodiment, described nonlinear resistance is made of centre carborundum valve block 1 with holes, and described Metallic rod 2 is a screw rod, and described clamping device 6 is a nut.
Rain cover 3 is made by metal material.Valve block 1 is not exposed, played good moisture-proof role, the rain cover 3 of metal has good heat dispersion.
Be provided with discharging gap on rain cover 3, the big I of this discharging gap is adjusted by screw 4.
The utility model is simple in structure, the less suitable switch cubicle of volume or outdoor use.
Claims (5)
1. resonance eliminator, mainly constitute by nonlinear resistance, rain cover, clamping device, it is characterized in that: described nonlinear resistance is made of centre valve block with holes, be installed with Metallic rod in the hole of this valve block, the two ends of this Metallic rod are fixed described valve block with clamping device, and rain cover is equipped with in this valve block outside.
2. resonance eliminator as claimed in claim 1 is characterized in that: the material of described nonlinear resistor valve sheet is a carborundum, and described Metallic rod is a screw rod, and described clamping device is a nut.
3. resonance eliminator as claimed in claim 1 is characterized in that: the material of described rain cover is a metal material.
4. resonance eliminator as claimed in claim 1 is characterized in that: described rain cover is provided with discharging gap.
5. resonance eliminator as claimed in claim 4 is characterized in that: the size of described discharging gap is by the screw adjustment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01270384 CN2508356Y (en) | 2001-11-09 | 2001-11-09 | Resonance elimilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01270384 CN2508356Y (en) | 2001-11-09 | 2001-11-09 | Resonance elimilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2508356Y true CN2508356Y (en) | 2002-08-28 |
Family
ID=33676015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01270384 Expired - Fee Related CN2508356Y (en) | 2001-11-09 | 2001-11-09 | Resonance elimilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2508356Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106099897A (en) * | 2016-08-24 | 2016-11-09 | 合肥智博电气有限公司 | Arc-extinguishing resonance-extinguishing device |
-
2001
- 2001-11-09 CN CN 01270384 patent/CN2508356Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106099897A (en) * | 2016-08-24 | 2016-11-09 | 合肥智博电气有限公司 | Arc-extinguishing resonance-extinguishing device |
| CN106099897B (en) * | 2016-08-24 | 2018-07-17 | 合肥智博电气有限公司 | Arc-extinguishing resonance-extinguishing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |