CN112834962A - Comprehensive detection device for power transmission and distribution line - Google Patents
Comprehensive detection device for power transmission and distribution line Download PDFInfo
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- CN112834962A CN112834962A CN202110141389.1A CN202110141389A CN112834962A CN 112834962 A CN112834962 A CN 112834962A CN 202110141389 A CN202110141389 A CN 202110141389A CN 112834962 A CN112834962 A CN 112834962A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 38
- 238000001514 detection method Methods 0.000 title claims abstract description 34
- 239000003990 capacitor Substances 0.000 claims description 25
- 239000000523 sample Substances 0.000 claims description 7
- 238000012360 testing method Methods 0.000 claims description 4
- 238000009413 insulation Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
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Abstract
The invention relates to a comprehensive detection device for a power transmission and distribution line, and belongs to the technical field of comprehensive detection devices for power transmission and distribution lines. The high-voltage generator is connected with a detection circuit used for detecting the running condition of the circuit, the detection circuit is connected with an alarm module, the high-voltage generator is further connected with a control module used for controlling the work of the high-voltage generator, the control module is connected with a control panel used for controlling the work of the control module, the control module is further connected with a display module used for displaying contents, and the high-voltage generator is connected with a battery. The invention has simple structure, can immediately detect the condition of insufficient insulation or no dismounting or pulling of the grounding knife of the power connection wire, and ensures the normal operation of the power grid equipment.
Description
Technical Field
The invention relates to a comprehensive detection device for a power transmission and distribution line, and belongs to the technical field of comprehensive detection devices for power transmission and distribution lines.
Background
The power distribution network is composed of overhead lines, cables, towers, distribution transformers, isolating switches, reactive compensation capacitors, a plurality of accessory facilities and the like, faults of the power distribution network can be caused as long as one device works abnormally, single-phase grounding, two-phase short circuit, three-phase short circuit and the like are caused, electric devices are damaged, and even power failure accidents are caused. The function of the distribution network is to distribute electrical energy to users safely, reliably and economically. However, in the power distribution network system, the lines are branched and distributed, and it takes time and labor for emergency repair personnel to check faults when a fault occurs. And when the power transmission and distribution line is in power transmission, the condition that the insulation is insufficient or the grounding wire grounding knife is not removed or pulled exists, and if the power transmission and distribution line is put into operation in a power grid under the condition, tripping or short circuit can be caused, so that equipment is damaged. There is no solution to the above problems. Therefore, a need exists for a comprehensive detection device for power transmission and distribution lines that can solve the above-mentioned technical problems.
Disclosure of Invention
The invention aims to solve the problems and provides the comprehensive detection device for the power transmission and distribution line, which has a simple structure and can immediately detect the condition that the insulation is insufficient or the grounding knife of the power connection line is not detached or pulled open so as to ensure the normal operation of power grid equipment.
The comprehensive detection device for the power transmission and distribution line is characterized by comprising a high-voltage generator 1 connected with the power transmission and distribution line, wherein the high-voltage generator 1 is connected with a detection circuit 2 used for detecting the operation condition of the circuit, the detection circuit 2 is connected with an alarm module 3, the high-voltage generator 1 is also connected with a control module 4 used for controlling the work of the high-voltage generator 1, the control module 4 is connected with a control panel 5 used for controlling the work of the control module 4, the control module 4 is also connected with a display module 6 used for displaying contents, and the high-voltage generator 1 is connected with a battery 7;
the high-voltage generator 1 comprises an uncontrolled rectifying circuit 8 connected with a power transmission and distribution line, the uncontrolled rectifying circuit 8 is connected with an LCC series-parallel resonant converter 9, the LCC series-parallel resonant converter 9 is connected with a full-bridge inverter 10, the full-bridge inverter 10 is connected with a pulse booster 11, the LCC series-parallel resonant converter 9 is connected with an LCC converter output charging voltage, a resonant current detection module 12 and a first driving circuit 13, the full-bridge inverter 10 is connected with a second driving circuit 14, a pulse transformer primary side voltage and a current detection module 15, and the LCC converter output charging voltage, the resonant current detection module 12, the first driving circuit 13, the second driving circuit 14, the pulse transformer primary side voltage and the current detection module 15 are all connected with a pulse width modulator 16;
what is needed isThe alarm module 3 comprises a first amplifier 17, a second amplifier 18, a resistor 19, a first capacitor 20, a second capacitor 21, a probe 22, a loudspeaker 23 and a second power supply battery 24, wherein the positive input end of the first amplifier 17 is connected with one end of the probe 22 and one end of the resistor 19;
the positive input end of the second amplifier 18 is connected with the other end of the resistor 19 and is grounded at the same time, the negative input end of the first amplifier 17 is connected with the negative input end of the second amplifier 18, the control input end of the first amplifier 17 is connected with the second power supply battery 24 and one end of the first capacitor 20, and the other end of the first capacitor 20 is grounded;
the control input end of the second amplifier 18 is grounded, the output end of the first amplifier 17 is connected with one end of the second capacitor 21 and one end of the loudspeaker 23, the output end of the second amplifier 18 is connected with the other end of the second capacitor 21 and the other end of the loudspeaker 23, the resistance value of the resistor 19 is 10K ohms, the capacitance of the first capacitor 20 is 100uF, and the voltage of the second power supply battery 24 is 3V.
The comprehensive detection device for the power transmission and distribution line is ingenious in structural design, can detect the power transmission line after the line construction is finished (before power transmission), can quickly detect the fault of the power transmission line, prevents power failure accidents, safely, reliably and economically distributes electric energy to users, if the power transmission line fails, rush-repair personnel can know fault information at the first time, and improves working efficiency.
Drawings
FIG. 1 is a block diagram of a comprehensive testing device for power transmission and distribution lines according to the present invention;
FIG. 2 is a block diagram of a high voltage generator;
fig. 3 is a block diagram of the alarm module.
In the figure: the system comprises a high voltage generator, a detection circuit, an alarm module, a control module, a display module, a battery, a non-control rectification circuit, a LCC series-parallel resonant converter, a full-bridge inverter, a pulse booster 12, an LCC converter output charging voltage, a resonant current detection module, a first driving circuit, a second driving circuit 14, a pulse transformer primary side voltage, a current detection module, a pulse width modulator 16, a first amplifier 17, a second amplifier 18, a resistor 19, a first capacitor 20, a second capacitor 21, a probe 22, a loudspeaker 23 and a second power supply battery 24.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The comprehensive detection device for the power transmission and distribution line in the embodiment refers to the attached figures 1-3, and comprises a high-voltage generator 1 connected with the power transmission and distribution line, wherein the high-voltage generator 1 is connected with a detection circuit 2 used for detecting the operation condition of the circuit, the detection circuit 2 is connected with an alarm module 3, the high-voltage generator 1 is also connected with a control module 4 used for controlling the work of the high-voltage generator 1, the control module 4 is connected with a control panel 5 used for controlling the work of the control module 4, the control module 4 is also connected with a display module 6 used for displaying contents, and the high-voltage generator 1 is connected with a battery 7;
the specific structure of the high-voltage generator is as follows: the high-voltage generator 1 comprises an uncontrolled rectifying circuit 8 connected with a power transmission and distribution line, the uncontrolled rectifying circuit 8 is connected with an LCC series-parallel resonant converter 9, the LCC series-parallel resonant converter 9 is connected with a full-bridge inverter 10, the full-bridge inverter 10 is connected with a pulse booster 11, the LCC series-parallel resonant converter 9 is connected with an LCC converter output charging voltage, a resonant current detection module 12 and a first driving circuit 13, the full-bridge inverter 10 is connected with a second driving circuit 14, a pulse transformer primary side voltage and a current detection module 15, the LCC converter output charging voltage, the resonant current detection module 12, the first driving circuit 13, the second driving circuit 14, the pulse transformer primary side voltage and the current detection module 15 are all connected with a pulse width modulator 16;
the specific structure of the alarm module is as follows: the alarm module 3 comprises a first amplifier 17, a second amplifier 18, a resistor 19, a first capacitor 20, a second capacitor 21, a probe 22, a loudspeaker 23 and a second power supply battery 24, wherein the positive input end of the first amplifier 17 is connected with one end of the probe 22 and one end of the resistor 19; the positive input end of the second amplifier 18 is connected with the other end of the resistor 19 and is grounded at the same time, the negative input end of the first amplifier 17 is connected with the negative input end of the second amplifier 18, the control input end of the first amplifier 17 is connected with the second power supply battery 24 and one end of the first capacitor 20, and the other end of the first capacitor 20 is grounded; the control input end of the second amplifier 18 is grounded, the output end of the first amplifier 17 is connected with one end of the second capacitor 21 and one end of the loudspeaker 23, the output end of the second amplifier 18 is connected with the other end of the second capacitor 21 and the other end of the loudspeaker 23, the resistance value of the resistor 19 is 10K ohms, the capacitance of the first capacitor 20 is 100uF, and the voltage of the second power supply battery 24 is 3V.
The invention utilizes the charge-discharge module to discharge the storage battery when the load of the power grid is minimum, synchronously monitors the discharge current and the voltage drop, judges the residual electric quantity of the storage battery according to the discharge curve of the used storage battery, realizes automatic charging when the electric quantity is insufficient, performs discharge test after the charging is finished, and sends out an alarm signal to prompt a worker to maintain or replace if the capacity is insufficient. The small environment independent of the storage battery pack is arranged in the explosion-proof box, the interference of various flammable and explosive gases in the storage battery pack can be avoided, the protection can be safely operated, meanwhile, if the protection is tripped, the protection can be switched on under the condition that the gas in the storage battery pack does not need to be discharged, the switching-on operation of the protection is facilitated, and the operation time is saved.
The working principle is as follows: during the use, gather transmission and distribution lines information through high voltage generator 1, detect transmission and distribution lines through detection circuitry 2, control module 5 simultaneously and whether have insulating not enough or the circumstances that earth connection earthing switch was not demolishd or pull open, if exist, show through display module 6, report to the police through alarm module 3 simultaneously. The high-voltage generator 1 is ingenious in structural design and can better acquire line information. The invention can detect the transmission line after the line construction is finished (before power transmission), can quickly detect the transmission line fault, prevent power failure accidents, safely, reliably and economically distribute electric energy to users, if the transmission line has faults, rush repair personnel can know the fault information at the first time, improve the working efficiency, and when the transmission line transmits power, if the insulation is insufficient or the grounding wire grounding knife is not detached or pulled, the fault information can be obtained at the first time through the comprehensive detection device of the transmission line and the distribution line, the rush repair personnel can be informed for maintenance at the first time, the tripping or the short circuit can be avoided, the equipment can be protected, and the normal operation of the power grid equipment can be ensured.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a comprehensive detection device of power transmission and distribution line, its characterized in that includes the high pressure generator who is connected with power transmission and distribution line, high pressure generator is connected with the detection circuitry who is used for the detection circuitry operational aspect, detection circuitry is connected with alarm module, high pressure generator still is connected with the control module who is used for controlling high pressure generator work, control module is connected with the control panel who is used for controlling control module work, control module still is connected with the display module who is used for carrying out content display, high pressure generator is connected with the battery.
2. The integrated detecting device for transmission and distribution lines according to claim 1, characterized in that the high voltage generator comprises an uncontrolled rectifying circuit connected with the transmission and distribution lines, the uncontrolled rectifying circuit is connected with an LCC series-parallel resonant converter, the LCC series-parallel resonant converter is connected with a full-bridge inverter, the full-bridge inverter is connected with a pulse booster, the LCC series-parallel resonant converter is connected with an LCC converter to output a charging voltage, a resonant current detecting module and a first driving circuit, the full-bridge inverter is connected with a second driving circuit, a primary side voltage of the pulse transformer and a current detecting module, the LCC converter outputs the charging voltage, the resonant current detecting module, the first driving circuit, the second driving circuit, the primary side voltage of the pulse transformer and the current detecting module are all connected with a pulse width modulator.
3. The integrated transmission and distribution line testing device of claim 2, wherein the alarm module comprises a first amplifier, a second amplifier, a resistor, a first capacitor, a second capacitor, a probe, a speaker and a second power supply battery, and a positive input terminal of the first amplifier is connected to one end of the probe and one end of the resistor.
4. The integrated transmission and distribution line testing device of claim 3, wherein the positive input of the second amplifier is connected to the other terminal of the resistor and is simultaneously grounded, the negative input of the first amplifier is connected to the negative input of the second amplifier, the control input of the first amplifier is connected to the second power supply battery and to one terminal of the first capacitor, and the other terminal of the first capacitor is grounded.
5. The integrated transmission and distribution line tester as recited in claim 4, wherein the control input of the second amplifier is grounded, the output of the first amplifier is connected to one terminal of the second capacitor and one terminal of the speaker, the output of the second amplifier is connected to the other terminal of the second capacitor and the other terminal of the speaker, the resistor has a resistance of 10K ohms, the capacitor of the first capacitor is 100uF, and the second supply battery has a voltage of 3V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110141389.1A CN112834962A (en) | 2021-02-02 | 2021-02-02 | Comprehensive detection device for power transmission and distribution line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110141389.1A CN112834962A (en) | 2021-02-02 | 2021-02-02 | Comprehensive detection device for power transmission and distribution line |
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| CN112834962A true CN112834962A (en) | 2021-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110141389.1A Pending CN112834962A (en) | 2021-02-02 | 2021-02-02 | Comprehensive detection device for power transmission and distribution line |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005143167A (en) * | 2003-11-05 | 2005-06-02 | Tokyo Electric Power Co Inc:The | High-voltage power distribution line disconnection detector |
| CN102385023A (en) * | 2011-10-24 | 2012-03-21 | 石家庄供电公司 | Intelligent high-voltage circuit grounding detector |
| CN104677417A (en) * | 2014-12-25 | 2015-06-03 | 国家电网公司 | Fault detection system and method for power transmission line |
| CN204421946U (en) * | 2014-12-25 | 2015-06-24 | 国家电网公司 | A kind of fault detection system for transmission line of electricity |
| CN205844375U (en) * | 2016-08-01 | 2016-12-28 | 徐峰 | A kind of high voltage pulse generation device for Cable fault examination |
| CN205920179U (en) * | 2016-05-30 | 2017-02-01 | 曲靖浩晨电力工程设计有限公司 | High voltage transmission lines construction grounding detection device |
| KR101764325B1 (en) * | 2017-05-08 | 2017-08-14 | 우성기업(주) | Apparatus for detecting fault point of power distribution line |
| CN107465351A (en) * | 2017-08-13 | 2017-12-12 | 余勇 | The pulse power |
| CN209690388U (en) * | 2018-10-09 | 2019-11-26 | 李晏喆 | Circuit on-off detection circuit |
-
2021
- 2021-02-02 CN CN202110141389.1A patent/CN112834962A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005143167A (en) * | 2003-11-05 | 2005-06-02 | Tokyo Electric Power Co Inc:The | High-voltage power distribution line disconnection detector |
| CN102385023A (en) * | 2011-10-24 | 2012-03-21 | 石家庄供电公司 | Intelligent high-voltage circuit grounding detector |
| CN104677417A (en) * | 2014-12-25 | 2015-06-03 | 国家电网公司 | Fault detection system and method for power transmission line |
| CN204421946U (en) * | 2014-12-25 | 2015-06-24 | 国家电网公司 | A kind of fault detection system for transmission line of electricity |
| CN205920179U (en) * | 2016-05-30 | 2017-02-01 | 曲靖浩晨电力工程设计有限公司 | High voltage transmission lines construction grounding detection device |
| CN205844375U (en) * | 2016-08-01 | 2016-12-28 | 徐峰 | A kind of high voltage pulse generation device for Cable fault examination |
| KR101764325B1 (en) * | 2017-05-08 | 2017-08-14 | 우성기업(주) | Apparatus for detecting fault point of power distribution line |
| CN107465351A (en) * | 2017-08-13 | 2017-12-12 | 余勇 | The pulse power |
| CN209690388U (en) * | 2018-10-09 | 2019-11-26 | 李晏喆 | Circuit on-off detection circuit |
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Application publication date: 20210525 |
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