CN208297642U - Power equipments defect analytical equipment - Google Patents
Power equipments defect analytical equipment Download PDFInfo
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- CN208297642U CN208297642U CN201821059269.7U CN201821059269U CN208297642U CN 208297642 U CN208297642 U CN 208297642U CN 201821059269 U CN201821059269 U CN 201821059269U CN 208297642 U CN208297642 U CN 208297642U
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- 230000007547 defect Effects 0.000 title claims abstract description 26
- 230000035945 sensitivity Effects 0.000 claims description 14
- 238000001228 spectrum Methods 0.000 claims description 9
- 230000003321 amplification Effects 0.000 claims description 8
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 8
- 230000010355 oscillation Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 238000010891 electric arc Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000005457 optimization Methods 0.000 description 8
- 230000007812 deficiency Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a kind of power equipments defect analytical equipments, are related to electric device maintenance field.Corona caused by power equipment early defect, electric trace, electric arc are lighter, are often not easy to be found, biggish Electromagnetic Interference can be generated in power grid.The utility model includes that electromagnetic wave receives circuit, ultrasonic wave receives circuit, processing circuit, oriented antenna cover, ultrasonic wave sound collection cover；The ultrasonic wave sound collection cover receives loop input with electromagnetic wave and is connected to determine electromagnetic wave source direction position；The ultrasonic wave sound collection cover receives loop input with ultrasonic wave and is connected to determine ultrasonic wave source direction position.The technical program receives determination of the circuit realization to electromagnetic wave source direction position by oriented antenna cover and electromagnetic wave, circuit is received by ultrasonic wave sound collection cover and ultrasonic wave to determine the source direction position of ultrasonic wave, to determine the proximal most position of failure and judge defect property；It can accurately and rapidly realize the lookup and judgement of light defects equipment.
Description
Technical field
The present invention relates to electric device maintenance field more particularly to power equipments defect analytical equipments.
Background technique
In the power equipments such as such as insulator, power cable, switch, bus, when occur corona caused by early defect,
Electric trace, electric arc are lighter, are often not easy to be found, because these equipment will not generate apparent discharging sound produced by corona discharge
Wave, uncertain Position Approximate is slightly remote, is difficult to be received by ultrasonic wave, but these slight equipment deficiencies, the meeting in power grid
Generate biggish Electromagnetic Interference.
Summary of the invention
The technical problem to be solved in the present invention and the technical assignment of proposition are to be improved and improved to prior art,
Power equipments defect analytical equipment is provided, for the purpose of realizing to the judgement of defect failure and the positioning of direction position.For this purpose, this
Following technical scheme is taken in invention.
Power equipments defect analytical equipment, including electromagnetic wave receives circuit, ultrasonic wave receives circuit, processing circuit, direction
Property antenna house, ultrasonic wave sound collection cover；The ultrasonic wave sound collection cover receives loop input with electromagnetic wave and is connected to determine electromagnetism
Wave source direction position；The ultrasonic wave sound collection cover receives loop input with ultrasonic wave and is connected to determine ultrasonic wave source side
To position.Biggish Electromagnetic Interference, and propagation distance can be generated in power grid using the slight equipment deficiency of power equipment
This remote characteristic receives determination of the circuit realization to electromagnetic wave source direction position by oriented antenna cover and electromagnetic wave, leads to
It crosses ultrasonic wave sound collection cover and ultrasonic wave receives circuit to determine the source direction position of ultrasonic wave, to determine the proximal most position of failure
And judge defect property；It can accurately and rapidly realize the lookup and judgement of light defects equipment.
As optimization technique means: further including switching switch, electromagnetic wave receives circuit, ultrasonic wave receives the output end in circuit
Be connected by switching switch with processing circuit input terminal, switching switch selection electromagnetic wave receive circuit or ultrasonic wave reception circuit and
Processing circuit is connected.It is easy to implement the acquisition and processing to two kinds of signals of electromagnetic wave and ultrasonic wave, handover operation is convenient, by making
With same processing circuit, cost is relatively low.
As optimization technique means: it includes receiving resonant tank, high-frequency amplifier and inspection that the electromagnetic wave, which receives circuit,
Wave device, reception resonant tank, high-frequency amplifier and the wave detector are sequentially connected, and receive the input terminal and direction of resonant tank
Property antenna house be connected；The output end of wave detector is connected with switching switch；It receives resonant tank and generates medium-frequency oscillator frequency range, work as the external world
Electromagnetic impulse interference is distorted its tuning oscillation, by exporting after detector after high-frequency amplifier High frequency amplification
To processing circuit.The convenient reception for realizing electromagnetic wave and signal processing, output meet the signal of processing circuit processes.
As optimization technique means: it includes concatenated preamplifier, frequency demultiplier that the ultrasonic wave, which receives circuit, described
Preamplifier be connected with ultrasonic wave sound collection cover, the frequency demultiplier with switching switch is connected, ultrasonic wave sound collection cover collects
Signal, and electric signal is changed into, after preamplifier amplified signal, the identifiable sound of human ear is downconverted to by frequency demultiplier.Side
Just reception and processing of the realization to ultrasonic wave, and it is processed into the identifiable sound of human ear.
As optimization technique means: the processing circuit includes concatenated sensitivity controller, amplifier, the spirit
Sensitivity adjuster is connected with switching switch, and the amplifier and the frequency spectrum for display interference electromagnetic wave and infrasound waveform are aobvious
Show device, be connected for listening to interference electromagnetic wave with the earphone of infrasonic sound.It can be real according to the power of practical received signal
The amplification of existing adjustment of sensitivity and signal, the display of waveform and the earphone of sound play.
As optimization technique means: before further including the interior shell for setting circuit board, the handle below shell, being set to shell
The connecting rod of side, the end of connecting rod are equipped with the oriented antenna cover, ultrasonic wave sound collection cover, and circuit board is received equipped with electromagnetic wave
Circuit, ultrasonic wave receive circuit, processing circuit.It is simple and reasonable, convenient for operation.
As optimization technique means: spectrum display is set to the top of shell.Position is higher, convenient for observation.
As optimization technique means: sensitivity controller includes knob, and the knob is set to the left side and/or the right side of shell
Side.Convenient for left or right hand manual adjustment.
As optimization technique means: the connecting rod is telescopic rod.When detect interference electromagnetic wave and it is infrasonic substantially
Behind direction, position of failure point can be determined come accurate by way of elongating telescopic rod.
The utility model has the advantages that
1, biggish Electromagnetic Interference can be generated in power grid using the slight equipment deficiency of power equipment, and propagate away from
From this remote characteristic, determination of the circuit realization to electromagnetic wave source direction position is received by oriented antenna cover and electromagnetic wave,
Circuit is received by ultrasonic wave sound collection cover and ultrasonic wave to determine the source direction position of ultrasonic wave, to determine the most peri position of failure
It sets and judges defect property.
2, electromagnetic wave, which receives circuit, can easily realize the tuning oscillation distortion of electromagnetic wave signal, and realize amplification and inspection
Wave.
3, ultrasonic wave, which receives circuit and can easily realize, is transformed into electric signal ultrasonic wave, and passes through at amplification and frequency reducing
Reason, realizes the display and ear recognition of waveform.
4, device overall structure advantages of simple, it is easy to operate.
5, telescopic connecting rod is convenient for after detecting interference electromagnetic wave and infrasonic general direction, flexible by elongating
The mode of bar accurately determines position of failure point.
Detailed description of the invention
Fig. 1 is invention's principle block diagram.
Fig. 2 is schematic structural view of the invention.
In figure: 1- oriented antenna cover；2- ultrasonic wave sound collection cover；3- electromagnetic wave receives circuit；4- ultrasonic wave receives circuit；
5- processing circuit；6- switching switch；7- spectrum display；8- earphone；9- shell；10- handle；11- connecting rod；301- receives tuning
Circuit；302- high-frequency amplifier；303- wave detector；401- preamplifier；402- frequency demultiplier；501- sensitivity controller；
502- amplifier.
Specific embodiment
Technical solution of the present invention is described in further detail below in conjunction with Figure of description.
As shown in Figs. 1-2, power equipments defect analytical equipment, including electromagnetic wave receives circuit 3, ultrasonic wave receives circuit 4,
Processing circuit 5, oriented antenna cover 1, ultrasonic wave sound collection cover 2；Ultrasonic wave sound collection cover 2 receives 3 input terminal phase of circuit with electromagnetic wave
Even to determine electromagnetic wave source direction position；Ultrasonic wave sound collection cover 2 receives 4 input terminal of circuit with ultrasonic wave and is connected to determine ultrasound
Wave source direction position.
Are received by 4 signal of circuit and is uniformly processed for electromagnetic wave reception circuit 3, ultrasonic wave in order to realize, further includes that switching is opened
6 are closed, electromagnetic wave receives circuit 3, ultrasonic wave receives the output end in circuit 4 by switching switch 6 and 5 input terminal phase of processing circuit
Even, switching switch 6 selects electromagnetic wave reception circuit 3 or ultrasonic wave reception circuit 4 to be connected with processing circuit 5.It is easy to implement to electricity
The acquisition and processing of two kinds of signals of magnetic wave and ultrasonic wave, handover operation is convenient, and by using same processing circuit 5, cost is relatively low.
In order to realize reception and the signal processing of electromagnetic wave, it includes receiving resonant tank 301, height that electromagnetic wave, which receives circuit 3,
Audio amplifier 302 and wave detector 303 receive resonant tank 301, high-frequency amplifier 302 and wave detector 303 and are sequentially connected, receive
The input terminal of resonant tank 301 is connected with oriented antenna cover 1；The output end of wave detector 303 is connected with switching switch 6；It receives
Resonant tank 301 generates medium-frequency oscillator frequency range, when external electromagnetic wave impulse interference, is distorted its tuning oscillation, by high frequency
It is exported after 303 detection of wave detector to processing circuit 5 after 302 High frequency amplification of amplifier.The convenient reception for realizing electromagnetic wave and
Signal processing, output meet the signal of the processing of processing circuit 5.
In order to realize the reception and processing to ultrasonic signal, it includes concatenated preamplifier that ultrasonic wave, which receives circuit 4,
401, frequency demultiplier 402, preamplifier 401 are connected with ultrasonic wave sound collection cover 2, and frequency demultiplier 402 is connected with switching switch 6, ultrasound
Wave sound collection cover 2 collects signal, and changes into electric signal, after 401 amplified signal of preamplifier, passes through 402 frequency reducing of frequency demultiplier
To the identifiable sound of human ear.The convenient reception and processing realized to ultrasonic wave, and it is processed into the identifiable sound of human ear.
In order to realize the amplification of adjustment of sensitivity and signal, processing circuit 5 includes concatenated sensitivity controller 501, puts
Big device 502, sensitivity controller 501 are connected with switching switch 6, amplifier 502 and for display interference electromagnetic wave and infrasound
The spectrum display 7 of waveform is connected for listening to interference electromagnetic wave with the earphone 8 of infrasonic sound.It can be according to practical reception
Signal the strong and weak amplification for realizing adjustment of sensitivity and signal, the display of waveform and the earphone 8 of sound play.
For ease of operation, further include the interior shell 9 for setting circuit board, the handle 10 below shell 9, be set to shell 9
The end of the connecting rod 11 of front side, connecting rod 11 is equipped with oriented antenna cover 1, ultrasonic wave sound collection cover 2, and circuit board connects equipped with electromagnetic wave
Withdraw road 3, ultrasonic wave receives circuit 4, processing circuit 5.It is simple and reasonable, convenient for operation.
For the ease of observation, spectrum display 7 is set to the top of shell 9.Position is higher, convenient for observation.
For the ease of manual adjustment, sensitivity controller 501 includes knob, and knob is set to the left side and/or the right side of shell 9
Side.Convenient for left or right hand manual adjustment.
In order to more accurately determine that position of failure point, connecting rod 11 are telescopic rod.Electromagnetic wave and infrasound are interfered when detecting
General direction after, can by way of elongating telescopic rod come it is accurate determine position of failure point.
Electromagnetic wave is set when switching 6 groups, switch and receives circuit 3, is to assemble doing for its direction by oriented antenna cover 1
Electromagnetic wave is disturbed, resonant tank 301 is received and generates medium-frequency oscillator frequency range, when the interference of external electromagnetic wave impulse, makes its tuning oscillation
It is distorted, is exported by high-frequency amplifier 302 through detection, after adjusting sensitivity, exported by amplifier 502, connection frequency spectrum is shown
Device 7 and earphone 8, to show the process of analysis electromagnetic waveform and sound source, so that it is determined that the proximal most position of failure；Work as switching
It sets ultrasonic wave for 6 groups, switch and receives circuit 4, the faint sound wave for generation of discharging after 401 amplified signal of preamplifier, then passes through
Frequency demultiplier 402 carries out mixing down to auditory perceptual identification sound, while through 7 display waveform of spectrum display, existing with analytical equipment
Defect finds the infrasound location point that electric discharge generates.
Power equipments defect analytical equipment shown in figure 1 above -2 is specific embodiments of the present invention, has embodied this
Invention substantive distinguishing features and progress can carry out shape, structure to it under the inspiration of the present invention using needs according to actual
Etc. equivalent modifications, equal column in the protection scope of this programme.
Claims (9)
1. power equipments defect analytical equipment, it is characterised in that: receive circuit (3) including electromagnetic wave, ultrasonic wave receives circuit
(4), processing circuit (5), oriented antenna cover (1), ultrasonic wave sound collection cover (2)；The ultrasonic wave sound collection cover (2) and electromagnetic wave
Circuit (3) input terminal is received to be connected to determine electromagnetic wave source direction position；The ultrasonic wave sound collection cover (2) connects with ultrasonic wave
Road (4) input terminal is withdrawn to be connected to determine ultrasonic wave source direction position.
2. power equipments defect analytical equipment according to claim 1, it is characterised in that: further include switching switch (6), electricity
Magnetic wave receives circuit (3), ultrasonic wave receives the output end of circuit (4) by switching switch (6) and processing circuit (5) input terminal phase
Even, switching switch (6) selection electromagnetic wave receives circuit (3) or ultrasonic wave receives circuit (4) and is connected with processing circuit (5).
3. power equipments defect analytical equipment according to claim 2, it is characterised in that: the electromagnetic wave receives circuit
It (3) include receiving resonant tank (301), high-frequency amplifier (302) and wave detector (303), the reception resonant tank
(301), high-frequency amplifier (302) and wave detector (303) are sequentially connected, and receive the input terminal and directive property of resonant tank (301)
Antenna house (1) is connected；The output end of wave detector (303) is connected with switching switch (6)；It receives resonant tank (301) and generates intermediate frequency
Oscillation frequency bands are distorted its tuning oscillation, by high-frequency amplifier (302) High frequency amplification when external electromagnetic wave impulse interference
By output after wave detector (303) detection to processing circuit (5).
4. power equipments defect analytical equipment according to claim 3, it is characterised in that: the ultrasonic wave receives circuit
It (4) include concatenated preamplifier (401), frequency demultiplier (402), the preamplifier (401) and ultrasonic wave sound collection cover
(2) it is connected, the frequency demultiplier (402) is connected with switching switch (6), and ultrasonic wave sound collection cover (2) collects signal, and changes into electricity
Signal is downconverted to the identifiable sound of human ear by frequency demultiplier (402) after preamplifier (401) amplified signal.
5. power equipments defect analytical equipment according to claim 4, it is characterised in that: processing circuit (5) packet
Concatenated sensitivity controller (501), amplifier (502) are included, the sensitivity controller (501) switchs (6) phase with switching
Even, the amplifier (502) be used for the spectrum display (7) of display interference electromagnetic wave and infrasound waveform, for listening to
Interference electromagnetic wave is connected with the earphone (8) of infrasonic sound.
6. power equipments defect analytical equipment described in -5 any claims according to claim 1, it is characterised in that: further include
The shell (9) for inside setting circuit board, the handle (10) being set to below shell (9), the connecting rod (11) being set on front side of shell (9), connecting rod
(11) end is equipped with the oriented antenna cover (1), ultrasonic wave sound collection cover (2), and circuit board is received back equipped with electromagnetic wave
Road (3), ultrasonic wave receive circuit (4), processing circuit (5).
7. power equipments defect analytical equipment according to claim 6, it is characterised in that: spectrum display (7) is set to shell
The top of body (9).
8. power equipments defect analytical equipment according to claim 7, it is characterised in that: sensitivity controller (501) packet
Knob is included, the knob is set to the left side and/or right side of shell (9).
9. power equipments defect analytical equipment according to claim 8, it is characterised in that: the connecting rod (11) is flexible
Bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821059269.7U CN208297642U (en) | 2018-07-05 | 2018-07-05 | Power equipments defect analytical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821059269.7U CN208297642U (en) | 2018-07-05 | 2018-07-05 | Power equipments defect analytical equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208297642U true CN208297642U (en) | 2018-12-28 |
Family
ID=64700969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821059269.7U Active CN208297642U (en) | 2018-07-05 | 2018-07-05 | Power equipments defect analytical equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN208297642U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110456178A (en) * | 2018-07-05 | 2019-11-15 | 国网浙江省电力有限公司岱山县供电公司 | Power equipments defect analyzer |
-
2018
- 2018-07-05 CN CN201821059269.7U patent/CN208297642U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110456178A (en) * | 2018-07-05 | 2019-11-15 | 国网浙江省电力有限公司岱山县供电公司 | Power equipments defect analyzer |
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