CN107462772A - A kind of anti-induced voltage phase checking device of contactless transmission line of electricity - Google Patents
A kind of anti-induced voltage phase checking device of contactless transmission line of electricity Download PDFInfo
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- CN107462772A CN107462772A CN201710841423.XA CN201710841423A CN107462772A CN 107462772 A CN107462772 A CN 107462772A CN 201710841423 A CN201710841423 A CN 201710841423A CN 107462772 A CN107462772 A CN 107462772A
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- 230000005611 electricity Effects 0.000 title claims abstract description 31
- 230000005540 biological transmission Effects 0.000 title claims abstract description 24
- 238000001514 detection method Methods 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000005674 electromagnetic induction Effects 0.000 abstract description 4
- 230000006698 induction Effects 0.000 abstract description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000819 phase cycle Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
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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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses a kind of contactless anti-induced voltage phase checking device of transmission line of electricity, including detection means module and ground wire, the tested phase of transmission line of electricity is grounded by ground wire, detection means module includes power supply, DC/AC inverters, signal processing unit, buzzer, first coil and the second coil, power supply respectively with DC/AC inverters, signal processing unit electrically connects, buzzer electrically connects with the signal processing unit, DC/AC inverters electrically connect with the first coil, signal processing unit electrically connects with second coil, first coil and the second coil are respectively fitted over the ground wire.Because the induced electricity of other live high voltage lines may make tested mutually powered, it is very high sometimes to be tested line influence voltage, can bring great harm to phase checking device and personnel；The present apparatus receives electromagnetic induction signal to ground wire injecting voltage signal, by signal processing unit, eliminates harm of the high induction voltage to equipment and operating personnel, it is ensured that the safety of phase checking device and operating personnel.
Description
Technical field
The present invention relates to high voltage supply phase checking device technical field, more particularly to a kind of anti-sensing of contactless transmission line of electricity
Voltage phase checking device.
Background technology
Needed after newly-built or transformation before transmission line of electricity power transmission by nuclear phase experiment come check circuit with the presence or absence of ground connection, break with
And whether both sides phase is consistent, but as transmission line of electricity is more and more narrow, with bar, parallel erection multi circuit transmission lines and long range are intersected
More become frequent across erection situation.To when wherein a circuit carries out nuclear phase, other circuits still under running conditions, are tested circuit
What induced electricity was pressed with is likely to be breached kilovolt even volts up to ten thousand, if still using megger nuclear phase, megger directly connects and takes high-tension electricity
Tested phase, not only easily cause instrument damage, cause experiment not carry out, and there is also very big potential safety hazard to testing crew.
Under new security situation requirement at present, instrument and the safety of personnel are must assure that during nuclear phase, therefore is badly in need of seeking new
Method of testing, to ensure that experiment is smoothed out, additionally it is possible to ensure security incident does not occur, improve efficiency.
The content of the invention
In view of this, the invention provides a kind of contactless anti-induced voltage phase checking device of transmission line of electricity.
The technological means that the present invention uses is as follows：
A kind of anti-induced voltage phase checking device of contactless transmission line of electricity, including detection means module and ground wire, it is described
Ground wire is mutually grounded transmission line of electricity is tested, the detection means module include power supply, DC/AC inverters, signal processing unit,
Buzzer, first coil and the second coil, the power supply electrically connect with the DC/AC inverters, signal processing unit respectively, institute
State buzzer to electrically connect with the signal processing unit, the DC/AC inverters electrically connect with the first coil, the signal
Processing unit electrically connects with second coil, and the first coil and the second coil are respectively fitted over the ground wire.
Preferably, the power supply is dc source.
Preferably, the DC/AC inverters believe power supply DC conversion into alternating current, and to ground wire injecting voltage
Number.
Preferably, the sensor current signal of the signal processing unit detection ground wire.
Preferably, the nuclear-phase method of the anti-induced voltage phase checking device of a kind of contactless transmission line of electricity, including it is at least following
Step：
S1. the tested phase distal end of high-tension line is grounded, the tested phase of high-tension line is grounded by near-end with the ground wire, so
High-tension line is tested mutually to form loop by ground connection；
S2. open detection apparatus module, DC/AC inverters detect back to loop injecting voltage signal, signal processing unit
Sensor current signal in road；
S3. detection means module is by the sensor current signal in Treatment Analysis loop, judges loop with the presence or absence of broken string,
If there is broken string, it indicates that buzzer does not send alarm, and otherwise buzzer will send alarm；
S4. the tested mutually distal end of high-tension line is hanging, high-tension line is tested and is mutually grounded by near-end with the ground wire, in addition
Two-phase distal end is grounded.
S5. open detection apparatus module, DC/AC inverters detect to ground wire injecting voltage signal, signal processing unit
Sensor current signal in ground wire；
S6. the sensor current signal that detection means module is detected by Treatment Analysis, judge it is tested mutually whether there is and its
Its two-phase phase fault, if there is phase fault, it indicates that buzzer sends alarm, and otherwise buzzer does not send alarm.
Using a kind of contactless anti-induced voltage phase checking device of transmission line of electricity provided by the present invention, there is following technology
Effect：
(1) because the induced electricity of other live high voltage lines may make tested mutually powered, it is tested line influence voltage sometimes
Very high, common nuclear-phase method is it is difficult to ensure that the safety of the instrument and personnel during nuclear phase, and the present apparatus to ground wire by injecting
Voltage signal, signal processing unit receive electromagnetic induction signal, and eliminating high-voltage line mutual inductance makes tested mutually to take high induction voltage
Harm to equipment and operating personnel, it is ensured that the safety of phase checking device and operating personnel.
(2) present apparatus can not only carry out nuclear phase to joint using circuit over long distances, high to scissors crossing can also sense
Voltage circuit carries out nuclear phase, has wide range of applications.
(3) present apparatus is simple to operate, it is only necessary to will be grounded hanging up tested phase and can carrying out nuclear phase to it for safety.
Brief description of the drawings
Fig. 1 is the principle schematic one of the present invention；
Fig. 2 is the principle schematic two of the present invention；
In figure：Detection means module 10, power supply 11, DC/AC inverters 12, signal processing unit 13, buzzer 14, first
Coil 15, the second coil 16, ground wire 20
Embodiment
The principle and feature of the present invention are described below in conjunction with accompanying drawing, the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
Embodiment one：
A kind of contactless anti-induced voltage phase checking device of transmission line of electricity as shown in Figure 1, including detection means module 10
With ground wire 20, the tested mutually ground connection of transmission line of electricity, the detection means module 10 are included power supply 11, DC/ by the ground wire 20
AC inverters 12, signal processing unit 13, buzzer 14, the coil 16 of first coil 15 and second, the power supply 11 respectively with institute
State DC/AC inverters 12, signal processing unit 13 electrically connects, the buzzer 14 electrically connects with the signal processing unit 13,
The DC/AC inverters 12 electrically connect with the first coil 15, the signal processing unit 13 and the electricity of the second coil 16
Connection, the coil 16 of first coil 15 and second are respectively fitted over the ground wire 20.
Preferably, the power supply 11 is dc source.
Preferably, the DC conversion of power supply 11 is injected electricity by the DC/AC inverters 12 into alternating current, and to ground wire 20
Press signal.
Preferably, the sensor current signal of the detection of signal processing unit 13 ground wire 20.
Based on electromagnetic induction principle, circuit is interpreted as a circle coil (being connected by earth loop), as shown in figure 1, working as
After distal end is grounded, proximally by the ground connection of ground wire 20, then loop is formed by the earth and circuit, utilizes signal injection unit ---
Power supply 11 is exported direct current and changes into exchange by inverter, and by transformer to loop injecting voltage signal；Examined again by signal
Survey unit --- signal processing unit 13, detect circuit in induced-current, according to detect current signal size judge circuit
Whether phase sequence is correct, if situations such as broken string, phase fault ground connection be present.
Embodiment two：
A kind of nuclear-phase method of the anti-induced voltage phase checking device of contactless transmission line of electricity, including at least following steps：
As shown in Figure 1：
S1. the tested phase distal end of high-tension line being grounded, the tested phase of high-tension line is grounded by near-end with the ground wire 20, this
Sample high-tension line is tested mutually to form loop by ground connection；
S2. open detection apparatus module 10, DC/AC inverters 12 are to loop injecting voltage signal, signal processing unit 13
Sensor current signal in measure loop；
S3. detection means module 10 judges loop with the presence or absence of disconnected by the sensor current signal in Treatment Analysis loop
Line, if there is broken string, it indicates that buzzer 14 does not send alarm, and otherwise buzzer 14 will send alarm；
As shown in Figure 2：
S4. the tested mutually distal end of high-tension line is hanging, high-tension line is tested and is mutually grounded by near-end with the ground wire 20, separately
Outer two-phase distal end is grounded.
S5. open detection apparatus module 10, DC/AC inverters 12 to ground wire 20 injecting voltage signals, signal transacting list
Sensor current signal in the detection of member 13 ground wire 20；
S6. the sensor current signal that detection means module 10 is detected by Treatment Analysis, judge it is tested mutually whether there is with
Other two-phase phase faults, if there is phase fault, it indicates that buzzer 14 sends alarm, and otherwise buzzer 14 does not send police
Report.
Using a kind of contactless anti-induced voltage phase checking device of transmission line of electricity provided by the present invention, there is following technology
Effect：
(1) because the induced electricity of other live high voltage lines may make tested mutually powered, it is tested line influence voltage sometimes
Very high, common nuclear-phase method is it is difficult to ensure that the safety of the instrument and personnel during nuclear phase, and the present apparatus to ground wire by injecting
Voltage signal, signal processing unit receive electromagnetic induction signal, and eliminating high-voltage line mutual inductance makes tested mutually to take high induction voltage
Harm to equipment and operating personnel, it is ensured that the safety of phase checking device and operating personnel.
(2) present apparatus can not only carry out nuclear phase to joint using electric wire over long distances, high to scissors crossing can also sense
Voltage circuit carries out nuclear phase, has wide range of applications.
(3) present apparatus is simple to operate, it is only necessary to will be grounded hanging up tested phase and can carrying out nuclear phase to it for safety.
Claims (5)
1. a kind of anti-induced voltage phase checking device of contactless transmission line of electricity, including detection means module and ground wire, its feature
It is, the tested mutually ground connection of transmission line of electricity, the detection means module are included power supply, DC/AC inverters, signal by the ground wire
Processing unit, buzzer, first coil and the second coil, the power supply respectively with the DC/AC inverters, signal processing unit
Electrically connect, the buzzer electrically connects with the signal processing unit, the DC/AC inverters and the first coil Electricity Federation
Connect, the signal processing unit electrically connects with second coil, and the first coil and the second coil are respectively fitted over described connect
Ground wire.
2. the nuclear-phase method of the anti-induced voltage phase checking device of contactless transmission line of electricity according to claim 1, its feature
It is, the power supply is dc source.
3. the nuclear-phase method of the anti-induced voltage phase checking device of contactless transmission line of electricity according to claim 1, its feature
It is, power supply DC conversion is injected electricity by the DC/AC inverters into alternating current, and by the first coil to ground wire
Press signal.
4. the nuclear-phase method of the anti-induced voltage phase checking device of contactless transmission line of electricity according to claim 1, its feature
It is, the sensor current signal that the signal processing unit is grounded by second Coil Detector.
A kind of 5. nuclear-phase method of the anti-induced voltage phase checking device of contactless transmission line of electricity, it is characterised in that including at least with
Lower step：
S1. the tested phase distal end of high-tension line is grounded, the tested phase of high-tension line is grounded by near-end with the ground wire, such high pressure
Circuit is tested mutually to form loop by ground connection；
S2. open detection apparatus module, DC/AC inverters are to loop injecting voltage signal, in signal processing unit measure loop
Sensor current signal；
S3. detection means module judges loop with the presence or absence of broken string by the sensor current signal in Treatment Analysis loop, if
In the presence of broken string, it indicates that buzzer does not send alarm, and otherwise buzzer will send alarm；
S4. the tested mutually distal end of high-tension line is hanging, high-tension line is tested and is mutually grounded by near-end with the ground wire, in addition two-phase
Distal end is grounded；
S5. open detection apparatus module, DC/AC inverters are grounded to ground wire injecting voltage signal, signal processing unit detection
Sensor current signal in line；
S6. the sensor current signal that detection means module is detected by Treatment Analysis, tested mutually whether there is and other two is judged
Phase phase fault, if there is phase fault, it indicates that buzzer sends alarm, and otherwise buzzer does not send alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710841423.XA CN107462772A (en) | 2017-09-18 | 2017-09-18 | A kind of anti-induced voltage phase checking device of contactless transmission line of electricity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710841423.XA CN107462772A (en) | 2017-09-18 | 2017-09-18 | A kind of anti-induced voltage phase checking device of contactless transmission line of electricity |
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| CN107462772A true CN107462772A (en) | 2017-12-12 |
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| CN201710841423.XA Pending CN107462772A (en) | 2017-09-18 | 2017-09-18 | A kind of anti-induced voltage phase checking device of contactless transmission line of electricity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108205097A (en) * | 2018-02-05 | 2018-06-26 | 苏州工业园区海沃科技有限公司 | Contactless dead line earthing position detecting system and detection method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108205097A (en) * | 2018-02-05 | 2018-06-26 | 苏州工业园区海沃科技有限公司 | Contactless dead line earthing position detecting system and detection method |
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Application publication date: 20171212 |
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