CN204203333U - A kind of can the voltage live line measurement device of anti-transient overvoltage - Google Patents
A kind of can the voltage live line measurement device of anti-transient overvoltage Download PDFInfo
- Publication number
- CN204203333U CN204203333U CN201420682196.2U CN201420682196U CN204203333U CN 204203333 U CN204203333 U CN 204203333U CN 201420682196 U CN201420682196 U CN 201420682196U CN 204203333 U CN204203333 U CN 204203333U
- Authority
- CN
- China
- Prior art keywords
- housing
- line measurement
- live line
- measurement device
- transient overvoltage
- 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
- 238000005259 measurement Methods 0.000 title claims abstract description 31
- 238000007599 discharging Methods 0.000 claims abstract description 15
- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- 238000009413 insulation Methods 0.000 claims abstract description 4
- 238000004891 communication Methods 0.000 claims description 22
- 238000010891 electric arc Methods 0.000 abstract description 6
- 230000001052 transient effect Effects 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical group C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
A kind of can the voltage live line measurement device of anti-transient overvoltage, comprise closed insulation shell, be arranged at the voltage measuring apparatus in housing, be set in first on housing, secondary shielding cover, described voltage measuring apparatus is provided with and extends to first of outside, second p-wire, second p-wire, voltage measuring apparatus and the first p-wire outer peripheral face be in housing are enclosed with the 3rd bell housing, described first, the corresponding conduction with the first p-wire and the 3rd bell housing of secondary shielding cover is connected, described first, secondary shielding cover interval arranges and intercepts gap to be formed, described first, secondary shielding overlaps relative annular edge along being formed with at least one electric discharge salient angle respectively, described first, the electric discharge salient angle of secondary shielding cover is oppositely arranged to form discharging gap, discharging gap can discharge when there is transient overvoltage, fault electric arc is guided into outside housing, prevent the voltage measuring apparatus in electric arc damage housing.
Description
Technical field
The utility model relate to a kind of can the voltage live line measurement device of anti-transient overvoltage, especially a kind of terminal voltage for measuring contact resistance is to calculate the resistance of contact resistance.
Background technology
People wish that electrical equipment contact is zero in contact site to the inhibition of circuit usually, and namely contact resistance is zero.But great many of experiments shows, the resistance at relay contacts position exists more or less, cannot ignore the impact of circuit.Therefore, the contact resistance of research electrical equipment, becomes extremely important to reduce to the impact of circuit.
Contact resistance is the resistance that two contact elements produce in contact site, whether the reliable operation of contact element, normal water conservancy diversion loop is generally several to tens microhms, there are even several thousand microhms up to a hundred, it is just that whether the resistivity of its contact site, pressure, free area are stablized in essence, contact resistance is the potential difference (PD) on surface in contact both sides and the ratio by the electric current of surface in contact, meets Ohm law, i.e. R
x=U/I, the metering system of current contact resistance all carries out under right and wrong online (off-line), provides a direct supply, and records U and I by reometer and voltage table, then calculate contact resistance R by measurement mechanism to contact resistance two ends
x.Due to the potential difference (PD) of the contact resistance under live line measurement forceful electric power in electric system, need to consider that interference under highfield and high-intensity magnetic field and measurement mechanism are to itself the problem such as security of system and measurement mechanism, therefore prior art does not have the method and apparatus of live line measurement contact resistance potential difference (PD).
Utility model content
The purpose of this utility model is for the deficiencies in the prior art, provide a kind of can the measurement mechanism of live line measurement contact resistance potential difference (PD).
The purpose of this utility model realizes by following technical solution:
A kind of can the voltage live line measurement device of anti-transient overvoltage, for the voltage of live line measurement high tension loop contact resistance to calculate resistance, it is characterized in that: comprise closed insulation shell, be arranged at the voltage measuring apparatus in housing, be set in first on housing, secondary shielding cover, described voltage measuring apparatus is provided with and extends to first of outside, second p-wire, second p-wire, voltage measuring apparatus and the first p-wire outer peripheral face be in housing are enclosed with the 3rd bell housing, described first, the corresponding conduction with the first p-wire and the 3rd bell housing of secondary shielding cover is connected, described first, secondary shielding cover interval arranges and intercepts gap to be formed, described first, secondary shielding overlaps relative annular edge along being formed with at least one electric discharge salient angle respectively, described first, the electric discharge salient angle of secondary shielding cover is oppositely arranged to form discharging gap.
Further, the utility model also comprises the first wireless communication module that setting is connected with voltage measuring apparatus in the housing, the terminal device being provided with the second wireless communication module, and described voltage measuring apparatus realizes data by first, second wireless communication module and terminal device and transmits.
Further, described housing is provided with insulating bar, described secondary shielding puts the resigning hole offering and pass for insulating bar, and described first wireless communication module outwards transmits data by resigning hole.
Further, described discharging gap equals the obstruct gap of 1/5-3/5.
Further, described electric discharge salient angle is circular arc.
Further, the annular edge that first, second bell housing described is relative is along three the electric discharge salient angles being formed with equidistantly distribution respectively.
Further, first, second wireless communication module described is bluetooth communication or WiFi communication module.
Further, in first, second bell housing described, at least one party is movably set on housing to regulate the size of described discharging gap.
Further, first, second bell housing described forms by around the collar of housing outer peripheral face and the shrouding of closed collar end face.
Further, the obstruct gap between the annular edge edge that first, second bell housing described is relative is equal everywhere.
The utility model has following beneficial effect:
Voltage measuring apparatus is arranged in the housing, and at outside first, second bell housing sheathed, first, second p-wire and voltage measuring apparatus outer peripheral face are enclosed with the 3rd bell housing, bell housing maskable Electric and magnetic fields, prevent voltage measuring apparatus to be subject to the interference of Electric and magnetic fields, ensure the measuring accuracy of voltage measuring apparatus; Some groups of relative electric discharge salient angles are set between first, second bell housing, discharging gap is formed between relative electric discharge salient angle, discharging gap can discharge when there is transient overvoltage, fault electric arc is guided into outside housing, prevent the voltage measuring apparatus in electric arc damage housing, the circular-arc-shaped design of electric discharge salient angle can make the electric fields uniform of discharging gap, ensures that discharging gap has good electric discharge repeatability; Also by regulating discharging gap to adapt to different conditions of work; Housing arranges insulating bar, operating personnel can be convenient to and carry out high-order live line measurement, and ensure processing safety; Voltage measuring apparatus realizes radio communication by wireless communication module and terminal device, by data transfer to terminal device, thus can observe easily and record measurement result.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is functional block diagram of the present utility model.
Fig. 3 is cut-open view of the present utility model.
Embodiment
With reference to shown in Fig. 1, Fig. 2 and Fig. 3, a kind of can the voltage live line measurement device of anti-transient overvoltage, comprise insulation shell 1, voltage measuring apparatus 3, first bell housing 21, secondary shielding cover the 22, the 3rd bell housing 52, insulator 53, first bluetooth communication 4 and mobile phone 6, wherein, the first bell housing 21, secondary shielding cover the 22, the 3rd bell housing 52 are the metal material such as copper, aluminium.
Housing 1 is cylindrical, is provided with insulating bar 11 below it, and this insulating bar 11 can be the rhabodoid of scalable adjustment, housing 1 can be risen to a high position by insulating bar 11, to measure the potential difference (PD) being positioned at high-order contact resistance R, first, secondary shielding cover 21, 22 outsides being set in housing 1, first bell housing 21 forms by around the collar 211 of housing 1 outer peripheral face and the shrouding 212 of closed collar 211 end face, secondary shielding cover 22 forms by around the collar 222 of housing 1 outer peripheral face and the shrouding 223 of closed collar 222 end face, secondary shielding cover 22 offers the resigning hole 221 passed for insulating bar 11, it is inner that voltage measuring apparatus 3 is arranged on housing 1, is provided with and extends to first of housing 1 outside, second p-wire 31, 32, for measuring the potential difference (PD) at contact resistance R two ends, housing 1 and shrouding 212, 223 are formed for first, second p-wire 31, 32 resigning holes passed, the 3rd bell housing 52 wraps up the second p-wire 32, voltage measuring apparatus 3 and part first p-wire 31, insulator 53 is arranged on mesopore housing 1 being formed with and passing for the first p-wire 31, wherein, first, secondary shielding cover 21, 22 by wire 331, 332 corresponding and the first p-wires 31, 3rd bell housing 52 conducts electricity and connects, and first, secondary shielding cover 21, 22 intervals arrange and intercept clearance D, first to be formed, secondary shielding cover 21, 22 relative annular edge along between obstruct clearance D equal everywhere, first, secondary shielding cover 21, 22 relative annular edge are along three the electric discharge salient angles 211 being formed with equidistantly distribution respectively, 221, first, secondary shielding cover 21, the electric discharge salient angle 211 of 22, 221 are oppositely arranged to form discharging gap L.
First bluetooth communication 4 arranges within the case 1 and is connected with voltage measuring apparatus 3, the emitting antenna 41 of the first bluetooth communication 4 is arranged near resigning hole 221, externally measurement data is sent by resigning hole 221, mobile phone 6 is built-in with the second bluetooth communication 61, voltage measuring apparatus 3 realizes data by first, second bluetooth communication 4,61 and mobile phone 6 and transmits, and mobile phone 6 receives data and display measurement result.
Concrete metering system is: by insulating bar 11, housing 1 is risen to a high position, two p-wires 31,32 of voltage measuring apparatus 3 are conducted electricity with the two ends wire of contact resistance R be connected, measurement result is sent to mobile phone 6 by first, second bluetooth communication 4,61 by voltage measuring apparatus 3, mobile phone 6 receives and display measurement result, when causing transient overvoltage when there is thunderbolt, discharging gap L discharges, fault electric arc is guided into outside housing 1, prevent the voltage measuring apparatus 3 in electric arc damage housing 1.
The above, be only preferred embodiment of the present utility model, therefore can not limit with this scope that the utility model implements, the equivalence namely done according to the utility model claim and description change with modify, all should still belong in scope that the utility model patent contains.
Claims (10)
1. one kind can the voltage live line measurement device of anti-transient overvoltage, for the voltage of live line measurement high tension loop contact resistance to calculate resistance, it is characterized in that: comprise closed insulation shell, be arranged at the voltage measuring apparatus in housing, be set in first on housing, secondary shielding cover, described voltage measuring apparatus is provided with and extends to first of outside, second p-wire, second p-wire, voltage measuring apparatus and the first p-wire outer peripheral face be in housing are enclosed with the 3rd bell housing, described first, the corresponding conduction with the first p-wire and the 3rd bell housing of secondary shielding cover is connected, described first, secondary shielding cover interval arranges and intercepts gap to be formed, described first, secondary shielding overlaps relative annular edge along being formed with at least one electric discharge salient angle respectively, described first, the electric discharge salient angle of secondary shielding cover is oppositely arranged to form discharging gap.
2. according to claim 1 a kind of can the voltage live line measurement device of anti-transient overvoltage, it is characterized in that: also comprise the first wireless communication module that setting is connected with voltage measuring apparatus in the housing, the terminal device being provided with the second wireless communication module, described voltage measuring apparatus realizes data by first, second wireless communication module and terminal device and transmits.
3. according to claim 2 a kind of can the voltage live line measurement device of anti-transient overvoltage, it is characterized in that: described housing is provided with insulating bar, described secondary shielding puts the resigning hole offering and pass for insulating bar, and described first wireless communication module outwards transmits data by resigning hole.
4. a kind of according to claim 1 or 2 or 3 can the voltage live line measurement device of anti-transient overvoltage, it is characterized in that: described discharging gap equals the obstruct gap of 1/5-3/5.
5. a kind of according to claim 1 or 2 or 3 can the voltage live line measurement device of anti-transient overvoltage, it is characterized in that: described electric discharge salient angle is circular arc.
6. a kind of according to claim 1 or 2 or 3 can the voltage live line measurement device of anti-transient overvoltage, it is characterized in that: the relative annular edge of first, second bell housing described is along three the electric discharge salient angles being formed with equidistantly distribution respectively.
7. a kind of according to claim 1 or 2 or 3 can the voltage live line measurement device of anti-transient overvoltage, it is characterized in that: first, second wireless communication module described is bluetooth communication or WiFi communication module.
8. a kind of according to claim 1 or 2 or 3 can the voltage live line measurement device of anti-transient overvoltage, it is characterized in that: in first, second bell housing described, at least one party is movably set on housing to regulate the size of described discharging gap.
9. a kind of according to claim 1 or 2 or 3 can the voltage live line measurement device of anti-transient overvoltage, it is characterized in that: first, second bell housing described is by around the collar of housing outer peripheral face and the shrouding composition of closed collar end face.
10. a kind of according to claim 1 or 2 or 3 can the voltage live line measurement device of anti-transient overvoltage, it is characterized in that: the relative annular edge of first, second bell housing described along between obstruct gap equal everywhere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420682196.2U CN204203333U (en) | 2014-11-14 | 2014-11-14 | A kind of can the voltage live line measurement device of anti-transient overvoltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420682196.2U CN204203333U (en) | 2014-11-14 | 2014-11-14 | A kind of can the voltage live line measurement device of anti-transient overvoltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204203333U true CN204203333U (en) | 2015-03-11 |
Family
ID=52661278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420682196.2U Expired - Fee Related CN204203333U (en) | 2014-11-14 | 2014-11-14 | A kind of can the voltage live line measurement device of anti-transient overvoltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204203333U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104360134A (en) * | 2014-11-14 | 2015-02-18 | 国家电网公司 | Live-line voltage measurement device capable of preventing transient overvoltage |
-
2014
- 2014-11-14 CN CN201420682196.2U patent/CN204203333U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104360134A (en) * | 2014-11-14 | 2015-02-18 | 国家电网公司 | Live-line voltage measurement device capable of preventing transient overvoltage |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105098321A (en) | High-voltage power station detection device | |
| CN105258723A (en) | High-voltage station detection device | |
| CN204203358U (en) | A kind of voltage live line measurement device of contact resistance | |
| CN204203356U (en) | High tension loop contact resistance live line measurement device | |
| CN204203361U (en) | A kind of can the contact resistance live line measurement device of fail-safe electric arc | |
| CN102998521A (en) | Ground-current remote monitor for transformer cores | |
| CN204203333U (en) | A kind of can the voltage live line measurement device of anti-transient overvoltage | |
| CN204241540U (en) | A kind of voltage measuring apparatus of contact resistance | |
| CN203933003U (en) | A kind of compact main transformer neutral point rod gap lightning arrester and ground connection complete set of protective apparatus | |
| CN204203331U (en) | A kind of voltage live line measurement device | |
| CN204203357U (en) | A kind of high tension loop contact resistance live line measurement device | |
| CN204203332U (en) | A kind of can the voltage live line measurement device of fail-safe electric arc | |
| CN204203334U (en) | A kind of contact resistance live line measurement device | |
| CN105136205A (en) | High voltage power station cable detection apparatus provided with rotating speed detector | |
| CN204229615U (en) | A kind of voltage transformer wireless supervisory system | |
| CN104360134A (en) | Live-line voltage measurement device capable of preventing transient overvoltage | |
| CN104360133A (en) | Contact resistance voltage measuring device | |
| CN104360160A (en) | High-voltage loop contact resistor live line measurement device | |
| CN104360132A (en) | Contact resistance live line measurement device | |
| CN204271013U (en) | A kind of thermomagnetic circuit breaker with small amount overload-alarm wholesale overlond trip function | |
| CN104360135A (en) | Live line voltage measurement device | |
| CN104360162A (en) | Live line measurement device for contact resistance of high voltage loop | |
| CN104360161A (en) | Contact resistance live line measurement device | |
| CN203191443U (en) | Lightning arrester leakage current on-line monitoring device | |
| CN104345206A (en) | Voltage live-line measurement device capable of preventing fault arcs |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20211114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |