CN108181539A - A kind of electric power system leak current fault detection method and device - Google Patents
A kind of electric power system leak current fault detection method and device Download PDFInfo
- Publication number
- CN108181539A CN108181539A CN201711221997.3A CN201711221997A CN108181539A CN 108181539 A CN108181539 A CN 108181539A CN 201711221997 A CN201711221997 A CN 201711221997A CN 108181539 A CN108181539 A CN 108181539A
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- CN
- China
- Prior art keywords
- measurement head
- power system
- electric power
- mounting
- leak current
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- 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.)
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Classifications
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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
Abstract
The present invention discloses a kind of electric power system leak current fault detection device,It includes multimeter,Display screen and regulating switch are provided on multimeter,Multimeter lower end is provided with handle,Handle bottom end is provided with end cap,Handle side is provided with control switch,Multimeter upper end is provided with mounting cylinder,Mounting cylinder top surface offers mounting groove,Electric drive hydraulic thruster is provided in mounting groove,Mounting base is provided on the push rod cup of electric drive hydraulic thruster upper end,Stepper motor is provided in mounting base,Mounting base upper surface is equipped with loose slot,Installing plate is provided in loose slot,Mounting hole is offered on installing plate,The output shaft of stepper motor is fixedly connected across mounting hole with installing plate,Installing plate upper surface is provided with mounting rod,Mounting rod upper end is provided with the first measurement head,Battery and the second measurement head 18 are provided in handle,Second measurement head is electrically connected by measure traverse line with multimeter.Easy to operate, perfect in shape and function of the invention, accuracy of detection are high.
Description
Technical field
The present invention relates to electric power system leak current fault detection technique field, more particularly, to a kind of electric power system leak current fault
Detection method and device.
Background technology
The detection of existing electric power system leak current fault, typically by detect zero sequence current mutual inductor zero-sequence current it is big
It is small to judge whether electric power system leaks electricity, zero sequence current mutual inductor electric current generation there are many due to, three-phase current unbalance,
Imbalance of three-phase voltage has DC component in electricity system, these factors can cause zero sequence current mutual inductor generation to be inducted
Electric current.Electric power system is with the increasing of electricity consumption, and when the increasing of especially single-phase electricity consumption, zero sequence current mutual inductor is inducted
Electric current can be very big, it is few then hundreds of milliamperes at most 1 ampere or more, such result, which may result in leakage circuit breakers and malfunction, to be judged as
Electric leakage.Therefore the result precision that whether existing method detection electric power system leaks electricity is not high, can usually judge by accident, cause it is non-just
Often have a power failure and more seriously human electric shock is caused to be failure to actuate, injure safety.
Invention content
To solve the above problems, the object of the present invention is to provide a kind of electric power system leak current fault detection device, meanwhile, it is public
Open a kind of detection method implemented using above-mentioned electric power system leak current fault device.
For achieving the above object, the present invention adopts the following technical scheme that：
Including multimeter, display screen and regulating switch are provided on multimeter for a kind of electric power system leak current fault detection device,
Multimeter lower end is provided with handle, and handle bottom end is provided with end cap, and handle side is provided with control switch, the setting of multimeter upper end
There is mounting cylinder, mounting cylinder top surface offers mounting groove, and electric drive hydraulic thruster is provided in mounting groove, and electric drive hydraulic thruster upper end pushes away
Mounting base is provided in head, stepper motor is provided in mounting base, mounting base upper surface is equipped with loose slot, is set in loose slot
There is installing plate, mounting hole is offered on installing plate, the output shaft of stepper motor is fixedly connected across mounting hole with installing plate, installation
Plate upper surface is provided with mounting rod, and mounting rod upper end is provided with the first measurement head, battery and the second measurement head are provided in handle
18, the second measurement head is electrically connected by measure traverse line with multimeter.
The electric power system leak current fault detection device, end cap are to be threadedly coupled, is snap-in with handle connection mode
Connection or plug-in type connection.
The electric power system leak current fault detection device is embedded with charging interface, charging indicator light and electricity on end cap
Source switch.
The electric power system leak current fault detection device, control switch for two, respectively with electric drive hydraulic thruster, step
Stepper motor is electrically connected, and two control switches use single-pole double-throw switch (SPDT).
The electric power system leak current fault detection device, installing plate upper surface are provided with multiple circular array distributions
LED light and microcam, video camera be electrically connected with display screen.
The electric power system leak current fault detection device is installed with rack on handle inner wall, and second measures
Head is mounted on rack.
The electric power system leak current fault detection device, the body of rod of electric drive hydraulic thruster are set in mounting groove, on
End push rod cup is fixedly connected with mounting base.
The electric power system leak current fault detection method that electric power system leak current fault detection device of the present invention is implemented, including such as
Lower step：
Step 1 removes end cap from handle, takes out the second measurement head, and the second measurement head is placed on the ground；
Step 2, operation two control switch control electric drive hydraulic thrusters, stepper motor actions, electric drive hydraulic thruster push first
Measurement head moves up and down, to adjust the height of the first measurement head；Stepper motor rotation drives the first measurement head around stepper motor
Output shaft rotates, to adjust the angle of the first measurement head；
Step 3 after treating the position adjustment of the first measurement head, operates regulating switch, while by the first measurement head close to be measured
Then electric power system carries out leak current fault detection by multimeter, detection data meeting real-time display is on a display screen.
Due to using technical solution as described above, the present invention has following superiority：
The electric power system leak current fault detection device, simple in structure, reasonable design is compact, easy to operate, and perfect in shape and function passes through
Multimeter is powered the leak current fault detection of system, and accuracy of detection is high, and operator need not be in direct contact the first measurement head
With the second measurement head, safety is higher, effectively avoids the generation of Danger Electric shock risk；Meanwhile, it is capable to the first measurement head of adjust automatically
Highly, facilitate the measurement operation of different location.
Description of the drawings
Fig. 1 is the structure diagram of electric power system leak current fault detection device of the present invention；
Fig. 2 is the structure sectional view of electric power system leak current fault detection device of the present invention；
Fig. 3 is I enlarged drawing in Fig. 1；
Fig. 4 is II enlarged drawing in Fig. 2；
Fig. 5 is the structure diagram of the end cap of electric power system leak current fault detection device in Fig. 1；
In figure：1- multimeters；2- display screens；3- regulating switches；4- handles；5- control switches；6- end caps；7- is installed
Cylinder；8- electric drive hydraulic thrusters；9- stepper motors；10- microcams；11-LED lamps；12- mounting rods；13- first is surveyed
Measure head；14- mounting bases；15- mounting grooves；16- batteries；17- measure traverse lines；The second measurement heads of 18-；19- racks；
20- loose slots；21- mounting holes；22- installing plates；23- charging indicator lights；24- charging interfaces；25- power switches.
Specific embodiment
Technical scheme of the present invention is described in further detail with reference to the accompanying drawings and examples.
As shown in Fig. 1,2,3,4,5, the electric power system leak current fault detection device, including multimeter 1, on multimeter 1
Display screen 2 and regulating switch 3 are provided with, multimeter lower end is provided with handle 4, and handle bottom end is provided with end cap 6,4 side of handle
Control switch 5 is provided with, multimeter upper end is provided with mounting cylinder 7, and mounting cylinder top surface offers mounting groove 15, set in mounting groove
There is electric drive hydraulic thruster 8, mounting base 14 is provided on the push rod cup of electric drive hydraulic thruster upper end, stepper motor is provided in mounting base
9, mounting base upper surface is equipped with loose slot 20, is provided with installing plate 22 in loose slot, mounting hole 21 is offered on installing plate 22, walks
The output shaft of stepper motor 9 is fixedly connected across mounting hole 21 with installing plate 22, and installing plate upper surface is provided with mounting rod 12, installation
Bar upper end is provided with the first measurement head 13, and 16 and second measurement head 18 of battery is provided in handle 4, and the second measurement head 18 passes through survey
Amount conducting wire 17 is electrically connected with multimeter 1.
Above-mentioned end cap 6 and 4 connection mode of handle is are threadedly coupled, snap-in connection or plug-in type connection；In on end cap 6
Embedded with charging interface 24, charging indicator light 23 and power switch 25.
Above-mentioned control switch 5 is two, is electrically connected respectively with electric drive hydraulic thruster 8, stepper motor 9, wherein, two controls
Using single-pole double-throw switch (SPDT), 8 elevating movement of electric drive hydraulic thruster, step are controlled by two single-pole double-throw switch (SPDT)s respectively for system switch
9 positive and negative rotation of stepper motor.
Above-mentioned 22 upper surface of installing plate is provided with the LED light 11 and microcam 10 of multiple circular array distributions,
Video camera is electrically connected with display screen 2.
Rack 19 is installed on above-mentioned 4 inner wall of handle, the second measurement head 18 is mounted on rack 19.
The body of rod of above-mentioned electric drive hydraulic thruster 8 is set in mounting groove 15, and upper end push rod cup is fixed with mounting base 14 to be connected
It connects.
Above-mentioned mounting rod 12 is made of isolation material.
The electric power system leak current fault detection method that electric power system leak current fault detection device of the present invention is implemented, including such as
Lower step：
（1）, end cap 6 removed from handle 4, take out the second measurement head 18, and the second measurement head is placed on the ground；
（2）, two control switches of operation 5 control electric drive hydraulic thrusters 8, stepper motors 9 act, electric drive hydraulic thruster pushes first
Measurement head 13 moves up and down, to adjust the height of the first measurement head；The rotation of stepper motor 9 drives the first measurement head around stepper motor
Output shaft rotation, with adjust the first measurement head angle；
（3）, treat the position adjustment of the first measurement head 13 after, regulating switch 3 is operated, while by the first measurement head close to be measured
Then electric power system carries out leak current fault detection by multimeter 1, detection data meeting real-time display is on the display screen 2.
Wherein, above-mentioned steps（3）In, when dark, open LED light 11 and illuminate the first measurement head upper area, so
Afterwards again by the first measurement head close to electric power system to be measured.
Wherein, above-mentioned steps（3）In, if the first measurement head apart from 4 position of handle farther out or operator is only with visually seeing
It does not know the first measurement head, then can open microcam 10 before measuring, it will be in the first measurement head by microcam
The video pictures in square region are filmed and pass through display screen 2 and be displayed for operator and check, then again lean on the first measurement head
Nearly electric power system.
The foregoing is merely presently preferred embodiments of the present invention rather than limitation of the present invention, in the essence for not departing from the present invention
In the case of refreshing and range, all equivalent changes and modifications made according to scope of the present invention patent should all belong to the special of the present invention
Within sharp protection domain.
Claims (8)
1. a kind of electric power system leak current fault detection device, it is characterized in that：It includes multimeter, and display screen is provided on multimeter
And regulating switch, multimeter lower end are provided with handle, and handle bottom end is provided with end cap, and handle side is provided with control and switchs, and ten thousand
Table upper end is provided with mounting cylinder, mounting cylinder top surface offers mounting groove, and electric drive hydraulic thruster, electronic liquid are provided in mounting groove
Mounting base is provided on the push rod cup of pressure push rod upper end, stepper motor is provided in mounting base, mounting base upper surface is equipped with loose slot,
Installing plate is provided in loose slot, mounting hole is offered on installing plate, the output shaft of stepper motor passes through mounting hole and installing plate
It is fixedly connected, installing plate upper surface is provided with mounting rod, and mounting rod upper end is provided with the first measurement head, battery is provided in handle
With the second measurement head 18, the second measurement head is electrically connected by measure traverse line with multimeter.
2. electric power system leak current fault detection device according to claim 1, it is characterized in that：Its end cap and handle connection side
Formula is is threadedly coupled, snap-in connection or plug-in type connect.
3. electric power system leak current fault detection device according to claim 1 or 2, it is characterized in that：It is embedded on its end cap
Charging interface, charging indicator light and power switch.
4. electric power system leak current fault detection device according to claim 1, it is characterized in that：It is two that it, which controls switch,
It is electrically connected respectively with electric drive hydraulic thruster, stepper motor, two control switches use single-pole double-throw switch (SPDT).
5. electric power system leak current fault detection device according to claim 1, it is characterized in that：Its installing plate upper surface is set
The LED light and microcam, video camera for having multiple circular array distributions are electrically connected with display screen.
6. electric power system leak current fault detection device according to claim 1, it is characterized in that：Fixed peace on its handle inner wall
Equipped with rack, the second measurement head is mounted on rack.
7. electric power system leak current fault detection device according to claim 1, it is characterized in that：The bar of its electric drive hydraulic thruster
Body is set in mounting groove, and upper end push rod cup is fixedly connected with mounting base.
What 8. a kind of electric power system leak current fault detection device using described in any claim in claim 1~7 was implemented
Electric power system leak current fault detection method, it is characterized in that：It includes the following steps：
Step 1 removes end cap from handle, takes out the second measurement head, and the second measurement head is placed on the ground；
Step 2, operation two control switch control electric drive hydraulic thrusters, stepper motor actions, electric drive hydraulic thruster push first
Measurement head moves up and down, to adjust the height of the first measurement head；Stepper motor rotation drives the first measurement head around stepper motor
Output shaft rotates, to adjust the angle of the first measurement head；
Step 3 after treating the position adjustment of the first measurement head, operates regulating switch, while by the first measurement head close to be measured
Then electric power system carries out leak current fault detection by multimeter, detection data meeting real-time display is on a display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711221997.3A CN108181539A (en) | 2017-11-29 | 2017-11-29 | A kind of electric power system leak current fault detection method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711221997.3A CN108181539A (en) | 2017-11-29 | 2017-11-29 | A kind of electric power system leak current fault detection method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108181539A true CN108181539A (en) | 2018-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711221997.3A Pending CN108181539A (en) | 2017-11-29 | 2017-11-29 | A kind of electric power system leak current fault detection method and device |
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| CN (1) | CN108181539A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113075582A (en) * | 2021-03-31 | 2021-07-06 | 广东电网有限责任公司广州供电局 | Electric leakage detection device of energy storage system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204855696U (en) * | 2015-07-16 | 2015-12-09 | 国家电网公司 | Earth detector |
| CN205581245U (en) * | 2016-02-29 | 2016-09-14 | 国网山东省电力公司东明县供电公司 | Leakage indicator |
| CN107219381A (en) * | 2017-06-22 | 2017-09-29 | 国网浙江义乌市供电公司 | It is a kind of can split measurement Multipurpose electric flow table |
| CN107315126A (en) * | 2017-08-21 | 2017-11-03 | 肇庆高新区黑阳科技有限公司 | A kind of leakage indicator |
-
2017
- 2017-11-29 CN CN201711221997.3A patent/CN108181539A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204855696U (en) * | 2015-07-16 | 2015-12-09 | 国家电网公司 | Earth detector |
| CN205581245U (en) * | 2016-02-29 | 2016-09-14 | 国网山东省电力公司东明县供电公司 | Leakage indicator |
| CN107219381A (en) * | 2017-06-22 | 2017-09-29 | 国网浙江义乌市供电公司 | It is a kind of can split measurement Multipurpose electric flow table |
| CN107315126A (en) * | 2017-08-21 | 2017-11-03 | 肇庆高新区黑阳科技有限公司 | A kind of leakage indicator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113075582A (en) * | 2021-03-31 | 2021-07-06 | 广东电网有限责任公司广州供电局 | Electric leakage detection device of energy storage system |
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180619 |
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| RJ01 | Rejection of invention patent application after publication |