CN205139284U - Instrument is sent in direct current examination - Google Patents
Instrument is sent in direct current examination Download PDFInfo
- Publication number
- CN205139284U CN205139284U CN201520781660.8U CN201520781660U CN205139284U CN 205139284 U CN205139284 U CN 205139284U CN 201520781660 U CN201520781660 U CN 201520781660U CN 205139284 U CN205139284 U CN 205139284U
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- Prior art keywords
- module
- sent
- direct current
- instrument
- control module
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- Withdrawn - After Issue
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Abstract
The utility model discloses an instrument is sent in direct current examination, including control module, high frequency signal generating device, transformer, high frequency voltage doubler rectifier circuit, high voltage output module and the sample measured module who connects gradually, sample measured module will take a sample signal transmission extremely control module and display module. The utility model discloses the investigation to the distribution lines trouble can be simplified, tester's danger degree has been reduced.
Description
Technical field
The utility model relates to distribution line equipment technical field, refers to that instrument is sent in the examination of a kind of direct current especially.
Background technology
After past 10 KV distribution line failure, the normality processing mode usually taked is maked an inspection tour completely by artificial, or use insulating megger to carry out insulation measurement to judge searching line fault to circuit.This method is more effective to pure overhead transmission line, but most circuit is pole line and cable hybrid line, tour cannot find out cable fault, and mostly be high resistive fault due to cable fault, use the insulation measurement of insulating megger to circuit inaccurate, repair personnel is difficult to judge from test data, and the possibility of erroneous judgement is up to more than 50%.The conventional solution that solves is; after Insulation test being carried out to distribution line segmentation by repair personnel; electric power system is adopted to try the mode sent; switch by distribution line on-pole switch or switching station disconnects; circuit is divided into several sections, application electric power system is carried out examination piecemeal and is sent, when the switch of certain section of circuit that closes; electric power system protection act or when sending ground signalling, proves that this section of circuit is faulty section.But there is greater risk in this mode, large area user not only may be caused to have a power failure in short-term or quality of voltage influenced, and impact greatly to electric power system, be exactly in fault distribution line Insulation test process in addition, distribution line is in cold standby state, once certain user use generator lack of standardization, powers to circuit is counter, distribution line forms instantaneous high pressure, causes the electric shock to tester most probably.
Utility model content
The utility model proposes the examination of a kind of direct current and send instrument, the investigation to distribution line failure can be simplified, reduce the hazard level of tester.
The technical solution of the utility model is achieved in that
Instrument is sent in a kind of direct current examination, comprise control module, high-frequency signal generation device, transformer, high frequency voltage doubling rectifier circuit, high voltage output module and sampling and measuring module, the output terminal of control module connects the input end of high-frequency signal generation device, the input end of the output terminal connection transformer of high-frequency signal generation device, the output terminal of transformer connects the input end of high frequency voltage doubling rectifier circuit, the output terminal of high frequency voltage doubling rectifier circuit connects the input end of high voltage output module, the output terminal of high voltage output module connects the input end of sampling and measuring module, sampled signal is sent to control module and display module by sampling and measuring module.
Further, control module is connected with overvoltage crowbar for shielding and current foldback circuit, and control module is also connected with backfeed loop, and feedback signal is delivered to control module by backfeed loop.Further, control module is connected with the alarm module for sending warning message, and alarm module is audio communication alarm module or photoelectric alarm module.
Further, high voltage output module exports a 8K and lies prostrate DC voltage.
Further, display module is LED display, and LED display is provided with touch-screen, LED display display translation voltage and output current.
Further, control module, high-frequency signal generation device, transformer, high frequency voltage doubling rectifier circuit, high voltage output module and sampling and measuring module are all arranged in a housing, and display module is arranged on the surface of housing.Further, the top of housing is provided with the handle of flexible connection.High voltage output module is connected with voltage output line, is provided with through hole in housing, and voltage output line is stretched from through hole.
The beneficial effects of the utility model are: the utility model to distribution line input be one with the voltage of working voltage equivalence, to circuit without any destruction, what draw is a qualitative results, send instrument can input 8 Kilovolt Direct Current pressures by direct current examination, this section of normal power transmission of distribution line energy is described; In direct current input process, do not reach 8 kilovolts, direct current examination send instrument to produce protection act, illustrates that this section of distribution line has fault.The utility model has multi-stage protection, safer.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the theory diagram that instrument is sent in the examination of the utility model direct current.
In figure, 1-control module; 2-high-frequency signal generation device; 3-transformer; 4-high frequency voltage doubling rectifier circuit; 5-high voltage output module; 6-sampling and measuring module; 7-alarm module; 8-display module.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, the utility model proposes the examination of a kind of direct current and send instrument, comprise the control module 1, high-frequency signal generation device 2, transformer 3, high frequency voltage doubling rectifier circuit 4, high voltage output module 5 and the sampling and measuring module 6 that connect successively, sampled signal is sent to control module 1 and display module 8 by sampling and measuring module 6.Control module 1 sends high-frequency signal for controlling high-frequency signal generation device 2, according to user's request timing controlled, also can control according to outer signals, realize intelligentized control method.High frequency signal generator is for generation of a high-frequency signal, and high-frequency signal is sent to transformer 3, high-frequency signal is carried out raising voltage by transformer 3 device and high frequency voltage doubling rectifier circuit 4, reach test distribution line required voltage value, transformer 3 and high frequency voltage doubling rectifier circuit 4 carry out secondary transformation, can work be shared, and realize than being easier to, more secure than a transformation.High voltage output module 5 is for exporting high direct voltage, and high direct voltage is input to distribution line, and whether can detect distribution line has fault.
Control module 1 is connected with overvoltage crowbar for shielding and current foldback circuit, and control module 1 is also connected with backfeed loop, and feedback signal is delivered to control module 1 by backfeed loop.Control module 1 is connected with the alarm module 7 for sending warning message, and alarm module 7 is audio communication alarm module 7 or photoelectric alarm module 7.When the utility model detects fault, control module 1 controls alarm module 7 and reports to the police.
High voltage output module 5 exports a 8K and lies prostrate DC voltage.The magnitude of voltage of the DC voltage analog ligand electric line of 8 kilovolts, can detect the guilty culprit of distribution line truly.
Display module 8 is LED display, and LED display is provided with touch-screen, LED display display translation voltage and output current.Display module 8 can intuitively for showing the output voltage and output current that detect, and in addition, display module 8 can send a control signal to control module 1, can control the utility model carry out work according to the instruction of preservation & testing personnel
Control module 1, high-frequency signal generation device 2, transformer 3, high frequency voltage doubling rectifier circuit 4, high voltage output module 5 and sampling and measuring module 6 are all arranged in a housing, and display module 8 is arranged on the surface of housing.By all module integrations in housing, be convenient for carrying.The top of housing is provided with the handle of flexible connection.Handle facilitates user to guide and support.High voltage output module 5 is connected with voltage output line, is provided with through hole in housing, and voltage output line is stretched from through hole.Voltage output line is used for DC voltage to be input in distribution line.
The utility model to distribution line input be one with the voltage of working voltage equivalence, to circuit without any destruction, what draw is a qualitative results, send instrument can input 8 Kilovolt Direct Current pressures by direct current examination, illustrates that this section of distribution line can normal power transmission; In direct current input process, do not reach 8 kilovolts, direct current examination send instrument to produce protection act, illustrates that this section of distribution line has fault.The utility model has multi-stage protection, safer.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. instrument is sent in a direct current examination, it is characterized in that: comprise control module, high-frequency signal generation device, transformer, high frequency voltage doubling rectifier circuit, high voltage output module and sampling and measuring module, the output terminal of described control module connects the input end of described high-frequency signal generation device, the output terminal of described high-frequency signal generation device connects the input end of described transformer, the output terminal of described transformer connects the input end of described high frequency voltage doubling rectifier circuit, the output terminal of described high frequency voltage doubling rectifier circuit connects the input end of described high voltage output module, the output terminal of described high voltage output module connects the input end of described sampling and measuring module, sampled signal is sent to described control module and display module by described sampling and measuring module.
2. instrument is sent in direct current examination according to claim 1; it is characterized in that: described control module is connected with overvoltage crowbar for shielding and current foldback circuit; described control module is also connected with backfeed loop, and feedback signal is delivered to described control module by described backfeed loop.
3. instrument is sent in direct current examination according to claim 2, and it is characterized in that: described control module is connected with the alarm module for sending warning message, described alarm module is audio communication alarm module or photoelectric alarm module.
4. instrument is sent in direct current examination according to claim 1, it is characterized in that: described high voltage output module exports a 8K and lies prostrate DC voltage.
5. instrument is sent in direct current examination according to claim 1, it is characterized in that: described display module is LED display, and described LED display is provided with touch-screen, described LED display display translation voltage and output current.
6. instrument is sent in direct current examination according to claim 1, it is characterized in that: described control module, high-frequency signal generation device, transformer, high frequency voltage doubling rectifier circuit, high voltage output module and sampling and measuring module are all arranged in a housing, and described display module is arranged on the surface of described housing.
7. instrument is sent in direct current examination according to claim 6, it is characterized in that: the top of described housing is provided with the handle of flexible connection.
8. instrument is sent in direct current examination according to claim 6, and it is characterized in that: described high voltage output module is connected with voltage output line, be provided with through hole in described housing, described voltage output line is stretched from described through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520781660.8U CN205139284U (en) | 2015-10-10 | 2015-10-10 | Instrument is sent in direct current examination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520781660.8U CN205139284U (en) | 2015-10-10 | 2015-10-10 | Instrument is sent in direct current examination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205139284U true CN205139284U (en) | 2016-04-06 |
Family
ID=55625062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520781660.8U Withdrawn - After Issue CN205139284U (en) | 2015-10-10 | 2015-10-10 | Instrument is sent in direct current examination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205139284U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105954646A (en) * | 2016-07-14 | 2016-09-21 | 广西电网有限责任公司柳州供电局 | Novel multifunctional DC trial transmission instrument |
| CN106199094A (en) * | 2016-07-14 | 2016-12-07 | 广西电网有限责任公司柳州供电局 | A kind of direct current for 35KV overhead transmission line tries to send instrument |
| CN111579920A (en) * | 2020-04-17 | 2020-08-25 | 深圳供电局有限公司 | Fault detection device and method |
-
2015
- 2015-10-10 CN CN201520781660.8U patent/CN205139284U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105954646A (en) * | 2016-07-14 | 2016-09-21 | 广西电网有限责任公司柳州供电局 | Novel multifunctional DC trial transmission instrument |
| CN106199094A (en) * | 2016-07-14 | 2016-12-07 | 广西电网有限责任公司柳州供电局 | A kind of direct current for 35KV overhead transmission line tries to send instrument |
| CN111579920A (en) * | 2020-04-17 | 2020-08-25 | 深圳供电局有限公司 | Fault detection device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160406 Effective date of abandoning: 20180627 |