CN103926501A - Pull rod type low-voltage line electric leakage fault detector - Google Patents
Pull rod type low-voltage line electric leakage fault detector Download PDFInfo
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- CN103926501A CN103926501A CN201410166473.9A CN201410166473A CN103926501A CN 103926501 A CN103926501 A CN 103926501A CN 201410166473 A CN201410166473 A CN 201410166473A CN 103926501 A CN103926501 A CN 103926501A
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- fault detector
- rectifier
- pipe handle
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Abstract
The invention provides a pull rod type low-voltage line electric leakage fault detector. The pull rod type low-voltage line electric leakage fault detector comprises a detector body, an amplifier, a rectifier and a current detector, wherein the detector body comprises a U-shaped probe, a telescopic rod and a tubular handle, the U-shaped probe is arranged at one end of the telescopic rod, the other end of the telescopic rod is inserted into the tubular handle and can be stretched into and drawn out of the tubular handle, the U-shaped probe is electrically connected with the input end of the amplifier, the output end of the amplifier is electrically connected with the input end of the rectifier, and the output end of the rectifier is electrically connected with the input end of the current detector. The pull rod type low-voltage line electric leakage fault detector can rapidly and safely detect low-voltage line electric leakage faults.
Description
Technical field
The present invention designs a kind of low-voltage circuit leak current fault detector, especially a kind of rod-pulling type low-voltage circuit leak current fault detector.
Background technology
In recent years, along with the expansion of distribution scale, safety utilization of electric power more and more receives everybody concern, and the leakage detector that existing manufacturer produces, signals collecting end is the pincerlike folder of closed loop, need step on the laggard line operate of bar, not only work efficiency is not high, and may threaten to operating personnel's safety.As certain low-voltage circuit has existed leaky, Site Detection personnel step on bar operation itself and just have sizable potential safety hazard.
Summary of the invention
The object of this invention is to provide a kind of detector that can detect low-voltage circuit leak current fault quickly and safely.
In order to realize foregoing invention object, the invention provides a kind of rod-pulling type low-voltage circuit leak current fault detector, comprise detector, amplifier, rectifier and current detector, detector comprises U-shaped probe, expansion link and pipe handle, U-shaped probe is arranged on one end of expansion link, the other end of expansion link is inserted in pipe handle, and can in pipe handle, pull and push back and forth, U-shaped probe is electrically connected to the input end of amplifier, the output terminal of amplifier is electrically connected to the input end of rectifier, and the output terminal of rectifier is electrically connected to the input end of current detector.
Adopt expansion link and pipe handle to pull and push cooperation, realize a telescopic detector, U-shaped probe easily can be delivered to low-voltage line position and detect, and without manually stepping on bar, improve work efficiency, also avoided operating personnel to step on bar danger; Adopt U-shaped probe to gather ac current signal, can contactless low-voltage line be detected, and without adopting the pincerlike folder of closed loop, improved work efficiency, also make to detect safer.
Scheme, also comprises an insulation sleeve as a further improvement on the present invention, and insulation sleeve is enclosed within the outside of pipe handle.Adopt insulation sleeve can further improve the insulativity of pipe handle, guaranteed operating personnel's personal safety.
Scheme, also comprises a tie down screw as a further improvement on the present invention, and the sidewall of pipe handle is provided with the threaded hole that runs through tube wall, and tie down screw is arranged on threaded hole.Adopt tie down screw through threaded hole, the expansion link in pipe handle to be fixed, guarantee that expansion link can, due to gravity in retraction pipe handle, not improve the stability while using after stretching out.
Scheme as a further improvement on the present invention, the afterbody of tie down screw is provided with and the axial vertical handle of tie down screw.Employing arranges handle at the afterbody of tie down screw, and process rotation lock screw rod easy to use, is fixed or unclamps the expansion link in pipe handle.
Scheme, also comprises a pilot lamp as a further improvement on the present invention, and pilot lamp is connected between the output terminal of rectifier and the input end of current detector.Adopt pilot lamp handled easily personnel to observe detection case, improve detection efficiency.
As further restriction scheme of the present invention, current detector is reometer.
Beneficial effect of the present invention is: (1) adopts expansion link and pipe handle to pull and push cooperation, realizes a telescopic detector, without manually stepping on bar, has improved work efficiency, has also avoided operating personnel to step on bar danger; (2) adopt U-shaped probe to gather ac current signal, can contactless low-voltage line be detected, and without adopting the pincerlike folder of closed loop, improved work efficiency, also make to detect safer; (3) adopt tie down screw through threaded hole, the expansion link in pipe handle to be fixed, guarantee that expansion link can, due to gravity in retraction pipe handle, not improve the stability while using after stretching out; (4) adopt the afterbody at tie down screw handle to be set, process rotation lock screw rod easy to use.
Accompanying drawing explanation
Fig. 1 is the structural representation of detector of the present invention;
Fig. 2 is electrical block diagram of the present invention.
Embodiment
As shown in Figure 1, detector of the present invention comprises U-shaped probe 1, expansion link 2 and pipe handle 3, and U-shaped probe 1 is arranged on one end of expansion link 2, and the other end of expansion link 2 is inserted in pipe handle 3, and can in pipe handle 3, pull and push back and forth.
When using detector, one end of expansion link 2 is outwards taken out from pipe handle 3 is interior, until U-shaped probe 1 extends low-voltage line place, adopt expansion link 2 and pipe handle 3 to pull and push cooperation, realize a telescopic detector, U-shaped can be popped one's head in and 1 easily deliver to low-voltage line position and detect, and without manually stepping on bar, improve work efficiency, also avoided operating personnel to step on bar danger; Adopt 1 pair of ac current signal of U-shaped probe to gather, can contactless low-voltage line be detected, and without adopting the pincerlike folder of closed loop, improved work efficiency, also make to detect safer.
In order further to improve the insulating property of pipe handle 3, also designed an insulation sleeve 4, insulation sleeve 4 is enclosed within the outside of pipe handle 3, can further guarantee operating personnel's personal safety.
In order further to improve the flexible stability of detector, also designed a tie down screw 5, the sidewall of pipe handle 3 is provided with the threaded hole that runs through tube wall, and tie down screw 5 is arranged on threaded hole.By tie down screw 5, through threaded hole, from the side the expansion link 2 in pipe handle 3 is fixed, guarantees that expansion link 2 can, due to gravity in retraction pipe handle 3, not improve the stability while using after stretching out.
The convenience of using in order further to improve tie down screw 5, the afterbody of tie down screw 5 is provided with and the axial vertical handle of tie down screw 5.By handle, can easily tie down screw 5 be tightened or be unclamped, and without using spanner that tie down screw 5 is tightened or unclamped.
As shown in Figure 2, U-shaped probe 1 is electrically connected to the input end of amplifier, and the output terminal of amplifier is electrically connected to the input end of rectifier, and the output terminal of rectifier is electrically connected to the input end of current detector, and wherein current detector can be reometer or multimeter.Adopt a phase circuit of 1 pair of low-voltage line of U-shaped probe to carry out non-contact detection, by amplifier, the faint AC signal collecting is amplified again, by rectifier, AC signal is converted to direct current signal again, finally utilize current detector to detect direct current signal, equally other two-phase circuits are detected, detection size of current corresponding to three-phase line that finally relatively current detector detects judges which exists leak current fault mutually, current values is little or be " zero ", judge this phase leakproof, current values is large, judges that this leaks electricity mutually.
For handled easily, personnel observe detection case, and the pilot lamp of having connected between the output terminal of rectifier and the input end of current detector, has improved operating personnel's work efficiency.
Claims (6)
1. a rod-pulling type low-voltage circuit leak current fault detector, it is characterized in that: comprise detector, amplifier, rectifier and current detector, described detector comprises U-shaped probe (1), expansion link (2) and pipe handle (3), described U-shaped probe (1) is arranged on one end of expansion link (2), the other end of described expansion link (2) is inserted in pipe handle (3), and can in pipe handle (3), pull and push back and forth, described U-shaped probe (1) is electrically connected to the input end of amplifier, the output terminal of described amplifier is electrically connected to the input end of rectifier, the output terminal of described rectifier is electrically connected to the input end of current detector.
2. rod-pulling type low-voltage circuit leak current fault detector according to claim 1, is characterized in that: also comprise an insulation sleeve (4), described insulation sleeve (4) is enclosed within the outside of pipe handle (3).
3. rod-pulling type low-voltage circuit leak current fault detector according to claim 1, it is characterized in that: also comprise a tie down screw (5), the sidewall of described pipe handle (3) is provided with the threaded hole that runs through tube wall, and described tie down screw (5) is arranged on threaded hole.
4. rod-pulling type low-voltage circuit leak current fault detector according to claim 3, is characterized in that: the afterbody of described tie down screw (5) is provided with and the axial vertical handle of tie down screw (5).
5. rod-pulling type low-voltage circuit leak current fault detector according to claim 1, is characterized in that: also comprise a pilot lamp, described pilot lamp is connected between the output terminal of rectifier and the input end of current detector.
6. rod-pulling type low-voltage circuit leak current fault detector according to claim 1, is characterized in that: described current detector is reometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410166473.9A CN103926501A (en) | 2014-04-23 | 2014-04-23 | Pull rod type low-voltage line electric leakage fault detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410166473.9A CN103926501A (en) | 2014-04-23 | 2014-04-23 | Pull rod type low-voltage line electric leakage fault detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103926501A true CN103926501A (en) | 2014-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410166473.9A Pending CN103926501A (en) | 2014-04-23 | 2014-04-23 | Pull rod type low-voltage line electric leakage fault detector |
Country Status (1)
| Country | Link |
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| CN (1) | CN103926501A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203904A (en) * | 2015-09-18 | 2015-12-30 | 国家电网公司 | Split electric leakage tester |
| CN105738763A (en) * | 2016-02-16 | 2016-07-06 | 国家电网公司 | Low-voltage TT wiring system transformer area electric leakage point positioning method and special-purpose detection tool |
| CN108931707A (en) * | 2018-07-09 | 2018-12-04 | 国网山东省电力公司莱芜供电公司 | A kind of portable power distribution line electrical leakage device for fast detecting |
| CN109946558A (en) * | 2019-04-08 | 2019-06-28 | 国网山东省电力公司夏津县供电公司 | A kind of leak current fault detector and its application method based on magnetic field signal analysis |
| CN112180209A (en) * | 2020-09-24 | 2021-01-05 | 国网山东省电力公司临沂供电公司 | Distribution network ground fault selection and section selection device |
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| CN2107080U (en) * | 1991-11-13 | 1992-06-10 | 南通县供电局 | Multi-functional three-phase leakage protector |
| CN2116916U (en) * | 1992-03-20 | 1992-09-23 | 邹长华 | Multi-purpose leaky checking instrument |
| CN2179976Y (en) * | 1993-03-31 | 1994-10-19 | 许治垣 | Multifunctional leakage current detecting meter |
| CN201233428Y (en) * | 2008-07-11 | 2009-05-06 | 江苏省电力公司建湖县供电公司 | Novel high-current test cable control device |
| CN201315428Y (en) * | 2008-12-11 | 2009-09-23 | 江苏省电力公司镇江供电公司 | Telescopic insulating rod |
| CN201754164U (en) * | 2010-07-02 | 2011-03-02 | 江苏省电力公司泗阳县供电公司 | Distribution transformer current and voltage measuring instrument |
| CN103630727A (en) * | 2013-10-30 | 2014-03-12 | 合保电气（芜湖）有限公司 | Load checking ammeter |
| CN203798955U (en) * | 2014-04-23 | 2014-08-27 | 国家电网公司 | Pull rod type low-voltage line leakage fault detecting instrument |
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2014
- 2014-04-23 CN CN201410166473.9A patent/CN103926501A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2107080U (en) * | 1991-11-13 | 1992-06-10 | 南通县供电局 | Multi-functional three-phase leakage protector |
| CN2116916U (en) * | 1992-03-20 | 1992-09-23 | 邹长华 | Multi-purpose leaky checking instrument |
| CN2179976Y (en) * | 1993-03-31 | 1994-10-19 | 许治垣 | Multifunctional leakage current detecting meter |
| CN201233428Y (en) * | 2008-07-11 | 2009-05-06 | 江苏省电力公司建湖县供电公司 | Novel high-current test cable control device |
| CN201315428Y (en) * | 2008-12-11 | 2009-09-23 | 江苏省电力公司镇江供电公司 | Telescopic insulating rod |
| CN201754164U (en) * | 2010-07-02 | 2011-03-02 | 江苏省电力公司泗阳县供电公司 | Distribution transformer current and voltage measuring instrument |
| CN103630727A (en) * | 2013-10-30 | 2014-03-12 | 合保电气（芜湖）有限公司 | Load checking ammeter |
| CN203798955U (en) * | 2014-04-23 | 2014-08-27 | 国家电网公司 | Pull rod type low-voltage line leakage fault detecting instrument |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203904A (en) * | 2015-09-18 | 2015-12-30 | 国家电网公司 | Split electric leakage tester |
| CN105738763A (en) * | 2016-02-16 | 2016-07-06 | 国家电网公司 | Low-voltage TT wiring system transformer area electric leakage point positioning method and special-purpose detection tool |
| CN105738763B (en) * | 2016-02-16 | 2018-11-06 | 国家电网公司 | Low pressure TT wiring system taiwan areas electric leakage independent positioning method and special detection tool |
| CN108931707A (en) * | 2018-07-09 | 2018-12-04 | 国网山东省电力公司莱芜供电公司 | A kind of portable power distribution line electrical leakage device for fast detecting |
| CN109946558A (en) * | 2019-04-08 | 2019-06-28 | 国网山东省电力公司夏津县供电公司 | A kind of leak current fault detector and its application method based on magnetic field signal analysis |
| CN109946558B (en) * | 2019-04-08 | 2024-03-26 | 国网山东省电力公司夏津县供电公司 | Leakage fault detector based on magnetic field signal analysis and use method thereof |
| CN112180209A (en) * | 2020-09-24 | 2021-01-05 | 国网山东省电力公司临沂供电公司 | Distribution network ground fault selection and section selection device |
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Application publication date: 20140716 |