CN106771913A - Signal synchronizing method, device and system for Partial discharge detector - Google Patents
Signal synchronizing method, device and system for Partial discharge detector Download PDFInfo
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- CN106771913A CN106771913A CN201611138099.7A CN201611138099A CN106771913A CN 106771913 A CN106771913 A CN 106771913A CN 201611138099 A CN201611138099 A CN 201611138099A CN 106771913 A CN106771913 A CN 106771913A
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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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention discloses a kind of signal synchronizing method for Partial discharge detector, device and system.Wherein, the method includes：Obtain the operational factor of equipment under test；The frequency of synchronizing signal is determined according to operational factor, wherein, synchronizing signal is used for Partial discharge detector is synchronous with equipment under test；Synchronizing signal is sent to Partial discharge detector by radio transmitting device.The present invention is solved existing Partial discharge detector and uses internal self-produced signal or caused that the degree of accuracy is high, technical problem that is being limited by place with the power frequency component of the synchronous tested primary equipment of wired mode.
Description
Technical field
The present invention relates to field of power, in particular to a kind of signal synchronization for Partial discharge detector
Methods, devices and systems.
Background technology
In this area, the important means that Partial Discharge Detection is power equipment state monitoring is carried out to power equipment, can
The operating mode of effective reflection power equipment, during Partial Discharge Detection, it usually needs by Partial discharge detector with it is tested
Power equipment (for example, primary equipment) is synchronous, i.e., in Partial discharge detector, using the power frequency with tested primary equipment voltage
The synchronous signal of signal.
At present, existing powered Partial discharge detector, using following two modes come synchronous power frequency component：One kind is profit
Power equipment is tested with wired connection；Another kind is using Partial discharge detector's self-produced synchronizing signal in inside.Above two synchronization
The mode of power equipment power frequency component, in the presence of it is certain the drawbacks of.First way, by the way of wired connection, easily receives
To working site position of source and synchronous signal line length limitation, there is considerable influence to operating efficiency aspect；The second way,
Using the mode of Partial discharge detector's self-produced synchronizing signal in inside, the frequency of the signal produced due to Partial discharge detector with
There is some difference for the power frequency component of tested primary equipment voltage, can cause to run frequency phenomenon, so as to cause erroneous judgement, influence detection knot
Really.
Internal self-produced signal is used for above-mentioned existing Partial discharge detector or be synchronously tested one in wired mode
The power frequency component of secondary device causes that the degree of accuracy is high, problem that is being limited by place, and effective solution is not yet proposed at present.
The content of the invention
A kind of signal synchronizing method for Partial discharge detector, device and system are the embodiment of the invention provides, with
Existing Partial discharge detector is at least solved to use internal self-produced signal or be synchronously tested primary equipment in wired mode
Power frequency component causes that the degree of accuracy is high, technical problem that is being limited by place.
A kind of one side according to embodiments of the present invention, there is provided signal synchronization side for Partial discharge detector
Method, including：Obtain the operational factor of equipment under test；The frequency of synchronizing signal is determined according to operational factor, wherein, synchronizing signal is used
In Partial discharge detector is synchronous with equipment under test；Synchronizing signal is sent to Partial Discharge Detection by radio transmitting device
Instrument.
Another aspect according to embodiments of the present invention, additionally providing a kind of signal for Partial discharge detector is synchronously
System, including：Synchronous generator, the operational factor for obtaining equipment under test, synchronizing signal is determined according to operational factor
Frequency, and synchronizing signal is sent by radio transmitting device, wherein, synchronizing signal is used to set Partial discharge detector with tested
It is standby synchronous；Radio receiver, is connected with Partial discharge detector, for receiving synchronizing signal, and by synchronous transmission of signal extremely
Partial discharge detector.
Another aspect according to embodiments of the present invention, additionally provides a kind of signal for Partial discharge detector and synchronously fills
Put, including：Acquisition module, the operational factor for obtaining equipment under test；Generation module, it is synchronous for being determined according to operational factor
The frequency of signal, wherein, synchronizing signal is used for Partial discharge detector is synchronous with equipment under test；Sending module, for passing through
Radio transmitting device sends to Partial discharge detector synchronizing signal.
In embodiments of the present invention, by obtaining the operational factor of equipment under test；Synchronizing signal is determined according to operational factor
Frequency, wherein, synchronizing signal be used for Partial discharge detector is synchronous with equipment under test；Will be synchronous by radio transmitting device
Signal is sent to Partial discharge detector, has reached using the power frequency component of equipment under test to generate synchronizing signal, and by nothing
The mode of line transmission is sent to the purpose of Partial discharge detector, it is achieved thereby that place and holding wire length limitation are not received, and
The technique effect of accuracy in detection is improved, and then solves existing Partial discharge detector and use internal self-produced signal or to have
The power frequency component of the synchronous tested primary equipment of the mode of line causes that the degree of accuracy is high, technical problem that is being limited by place.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this hair
Bright schematic description and description does not constitute inappropriate limitation of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is a kind of signal synchronizing method flow chart for Partial discharge detector according to embodiments of the present invention；
Fig. 2 is according to embodiments of the present invention a kind of optionally with the signal synchronizing method flow of Partial discharge detector
Figure；
Fig. 3 is according to embodiments of the present invention a kind of optionally with the signal synchronizing method flow of Partial discharge detector
Figure；
Fig. 4 is according to embodiments of the present invention a kind of optionally with the signal synchronizing method flow of Partial discharge detector
Figure；
Fig. 5 is a kind of optional power frequency component synchronisation source principle schematic according to embodiments of the present invention；
Fig. 6 is a kind of signal synchronizing system schematic diagram for Partial discharge detector according to embodiments of the present invention；With
And
Fig. 7 is a kind of signal sychronisation schematic diagram for Partial discharge detector according to embodiments of the present invention.
Specific embodiment
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Accompanying drawing, is clearly and completely described to the technical scheme in the embodiment of the present invention, it is clear that described embodiment is only
The embodiment of a part of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, should all belong to the model of present invention protection
Enclose.
It should be noted that term " first ", " in description and claims of this specification and above-mentioned accompanying drawing
Two " it is etc. for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so using
Data can exchange in the appropriate case, so as to embodiments of the invention described herein can with except illustrating herein or
Order beyond those of description is implemented.Additionally, term " comprising " and " having " and their any deformation, it is intended that cover
Lid is non-exclusive to be included, for example, the process, method, system, product or the equipment that contain series of steps or unit are not necessarily limited to
Those steps or unit clearly listed, but may include not list clearly or for these processes, method, product
Or other intrinsic steps of equipment or unit.
Embodiment 1
According to embodiments of the present invention, there is provided a kind of synchronous embodiment of the method for signal for Partial discharge detector,
It should be noted that can be in the such as one group department of computer science of computer executable instructions the step of the flow of accompanying drawing is illustrated
Performed in system, and, although logical order is shown in flow charts, but in some cases, can be with different from herein
Order perform shown or described step.
Fig. 1 is a kind of signal synchronizing method flow chart for Partial discharge detector according to embodiments of the present invention, such as
Shown in Fig. 1, the method comprises the following steps：
Step S102, obtains the operational factor of equipment under test；
Step S104, the frequency of synchronizing signal is determined according to operational factor, wherein, synchronizing signal is used to examine shelf depreciation
Survey instrument synchronous with equipment under test；
Step S106, is sent to Partial discharge detector synchronizing signal by radio transmitting device.
Specifically, in above-mentioned steps, equipment under test can be the power equipment in power system, be existed according to power equipment
Role is run in power system different, electrical primary equipment and electrical secondary equipment can be divided into, wherein, electrical primary
Equipment is the equipment for directly participating in production, conversion, transmission, distribution and consumption electric energy, for example, generator, motor, transformer
Deng；Electrical secondary equipment is the equipment for the running status of electrical primary equipment being measured, monitor, controlling and being adjusted etc., example
Such as, various measurement meters, various relay protections and automatics etc..Above-mentioned operational factor can be that (that is, electric power sets equipment under test
It is standby) other specification of the parameter such as voltage, electric current in the process of running, or electrical equipment, a kind of optional embodiment
In, such as flicker frequency of fluorescent lamp.Above-mentioned radio transmitting device can be the transmitting-receiving carried out data transmission using wireless technology
Device, the wireless technology for using can be bluetooth, WIFI, NFC, GPRS etc..
Herein it should be noted that partial discharge phenomenon in order to detect power equipment in power system, it usually needs will
The measurement signal of Partial discharge detector is synchronous with the power frequency component of equipment under test, based on disclosed in above-mentioned steps S102 to S106
Scheme, by obtaining the operational factor of equipment under test (that is, power equipment), the operational factor of the equipment under test according to acquisition, really
It is fixed to be used for the frequency of Partial discharge detector's synchronizing signal synchronous with equipment under test, and by the synchronizing signal by wireless biography
Defeated device is sent into Partial discharge detector.
Used as a kind of optional embodiment, above-mentioned radio transmitting device can include that transmitter and receiver are constituted, wherein,
Receiver can be connected by data-interface as a single equipment with Partial discharge detector；A kind of optional implementation
In scheme, transmitter can be a single equipment, by data-interface and the inspection for detecting equipment under test operational factor
Survey device connection；In another optional embodiment, transmitter can also be the inspection for detecting equipment under test operational factor
Survey the sending module with wireless transmission function built-in on device.
It should be noted that because the receiver of above-mentioned radio transmitting device is a single equipment, it is possible to city
Existing Partial discharge detector is compatible on field.
From the foregoing, it will be observed that in the above embodiments of the present application, by obtaining equipment under test each operation in the process of running
Parameter (different according to the different modes taken, to obtain different operational factors), and obtained part according to these operational factors
After the frequency of the discharge detector synchronizing signal synchronous with equipment under test, the synchronizing signal is sent out using the mode being wirelessly transferred
Deliver in Partial discharge detector, reached using the power frequency component of equipment under test to determine synchronizing signal, and by wireless biography
Defeated mode is sent to the purpose of Partial discharge detector, it is achieved thereby that not receiving place and holding wire length limitation, and is improved
The technique effect of accuracy in detection, and then solve existing Partial discharge detector and use internal self-produced signal or with wired
The power frequency component of the synchronous tested primary equipment of mode causes that the degree of accuracy is high, technical problem that is being limited by place.
Alternatively, above-mentioned operational factor can include one of any as follows：The sudden strain of a muscle of fluorescent lamp under equipment under test power-frequency voltage
The electric current of the primary equipment in bright frequency, transformer station where the low-tension supply frequency of transformer station, equipment under test where equipment under test
Frequency.
In the first optional embodiment, as shown in Fig. 2 the fluorescent lamp in the case where operational factor is equipment under test power-frequency voltage
Flicker frequency in the case of, the frequency of synchronizing signal is determined according to operational factor, may include steps of：
Step S202, obtains the flicker frequency of fluorescent lamp under equipment under test power-frequency voltage；
Step S204, using flicker frequency as synchronizing signal frequency.
Specifically, in the above-described embodiments, power frequency is the rated frequency of the power supply of national regulation, and power-frequency voltage is state
The power industry of family's regulation and the unified standard voltage of electrical equipment, the power-frequency voltage that China specifies is 50Hz, 220V；Due to every
The power-frequency voltage of individual national regulation is different, and power-frequency voltage is not construed as limiting herein, and above-mentioned power-frequency voltage can be one default
Voltage.As a kind of optional embodiment, it is possible to use the flicker frequency of fluorescent lamp replaces quilt under equipment under test power-frequency voltage
The electric voltage frequency of measurement equipment (for example, primary equipment).Based on scheme disclosed in above-mentioned steps S202 to S204, can be by photosensitive
Element obtains the flicker frequency of fluorescent lamp under equipment under test power-frequency voltage, and the voltage that the flicker frequency is replaced into primary equipment is frequently
Rate, and sent to Partial discharge detector by radio transmitting device, as Partial discharge detector to be set with tested
The frequency of standby synchronous synchronizing signal.
By above-described embodiment, by the way of phototiming, Partial discharge detector is realized synchronous with equipment under test.
In second optional embodiment, as shown in figure 3, being the low pressure of transformer station where equipment under test in operational factor
In the case of supply frequency, the frequency of synchronizing signal is determined according to operational factor, including：
Step S302, obtains the low-tension supply frequency of transformer station where equipment under test；
Step S304, using low-tension supply frequency as synchronizing signal frequency.
Specifically, in the above-described embodiments, above-mentioned transformer station is the transformer station where equipment under test, in power system,
For the electrical energy transportation that sends power plant to place farther out, it usually needs brought the voltage up by transformer station and be changed into high pressure
Electricity, to electrical appliance after voltage is reduced again, above-mentioned low-tension supply frequency is the supply frequency of the low-voltage after voltage is reduced, one
Plant in optional embodiment, the voltage of the low-tension supply can be 220V, and its frequency is 50Hz；Based on above-mentioned steps S302 extremely
Scheme disclosed in S304, it is possible to use the 220V low-tension supplies frequency in the transformer station where equipment under test replaces primary equipment
Electric voltage frequency, in a kind of optional embodiment, can by voltage synchronous element come the low-tension supply in synchronous transformer station frequently
Rate, after the low-tension supply frequency of transformer station where acquiring equipment under test, is sent to local by radio transmitting device and put
On electro-detection instrument, as by the frequency of Partial discharge detector's synchronizing signal synchronous with equipment under test.
By above-described embodiment, by the way of voltage synchronous, Partial discharge detector is realized synchronous with equipment under test.
In the third optional embodiment, as shown in figure 4, being in transformer station where equipment under test in operational factor
In the case of the power frequency of secondary device, the frequency of synchronizing signal is determined according to operational factor, including：
Step S402, obtains the power frequency of the primary equipment in transformer station where equipment under test；
Step S404, using power frequency as synchronizing signal frequency.
Specifically, equipment under test can be the power equipment in power system in the above-described embodiments, for example, high-tension electricity
Cable, in a kind of optional embodiment, can be by current synchronization element come the high pressure in transformer station where synchronous equipment under test
The power frequency of cable, after the power frequency for acquiring high-tension cable, is sent to shelf depreciation by radio transmitting device
On detector, as by the frequency of Partial discharge detector's synchronizing signal synchronous with equipment under test.
By above-described embodiment, by the way of current synchronization, Partial discharge detector is realized synchronous with equipment under test.
The above embodiments of the present application preferred embodiment can be illustrated with reference to Fig. 5 as a kind of, Fig. 5 is according to this
A kind of optional power frequency component synchronisation source principle schematic of inventive embodiments, as shown in figure 5, the power frequency component synchronisation source includes
Transmitting terminal and receiving terminal two parts, transmitting terminal are provided simultaneously with light synchronization, voltage synchronous, current synchronization function, take and wirelessly connect
Mode is connect by power-frequency voltage frequency signal transmission to receiving terminal, receiving terminal passes through data transmission interface by power-frequency voltage frequency signal
Send to powered Partial discharge detector.
By the above embodiments of the present application, transmitting terminal is wirelessly connected with receiving terminal, in the inspection of powered shelf depreciation
During survey, influence of the wired synchronization system to operating efficiency can be effectively reduced, while avoiding the internal self-produced method of synchronization can
The erroneous judgement that can be caused.
Embodiment 2
According to embodiments of the present invention, a kind of signal synchronizing system embodiment for Partial discharge detector is additionally provided.
The signal synchronizing method for Partial discharge detector in the embodiment of the present invention 1 can be in the system of the embodiment of the present invention 2
Perform.
Fig. 6 is a kind of signal synchronizing system schematic diagram for Partial discharge detector according to embodiments of the present invention, such as
Shown in Fig. 6, the system includes：Synchronous generator 601 and radio receiver 603.
Wherein, synchronous generator 601, the operational factor for obtaining equipment under test determines same according to operational factor
The frequency of signal is walked, and synchronizing signal is sent by radio transmitting device, wherein, synchronizing signal is used for Partial discharge detector
It is synchronous with equipment under test；
Radio receiver 603, is connected with Partial discharge detector, for receiving synchronizing signal, and synchronizing signal is passed
Transport to Partial discharge detector.
From the foregoing, it will be observed that in the above embodiments of the present application, synchronous generator was being run by obtaining equipment under test
Each operational factor (different according to the different modes taken, to obtain different operational factors) in journey, and according to these operations
After parameter is obtained the frequency of Partial discharge detector's synchronizing signal synchronous with equipment under test, using the mode being wirelessly transferred
The synchronizing signal is sent to radio receiver, radio receiver after the synchronizing signal is received, by the synchronizing signal
Transmit into connected Partial discharge detector, reached using the power frequency component of equipment under test to determine synchronizing signal,
And sent by way of being wirelessly transferred to the purpose of Partial discharge detector, it is achieved thereby that not receiving place and signal line length
Limitation, and the technique effect of accuracy in detection is improved, and then existing Partial discharge detector is solved using internal self-produced letter
Number or cause that the degree of accuracy is high, technology that is being limited by place is asked with the power frequency component of the synchronous tested primary equipment of wired mode
Topic.
In a kind of optional embodiment, above-mentioned synchronous generator includes：Photo-sensitive cell, for obtaining equipment under test
The flicker frequency of fluorescent lamp under power-frequency voltage.
In a kind of optional embodiment, above-mentioned synchronous generator can also include：Voltage synchronous element, for obtaining
Take the low-tension supply frequency of transformer station where equipment under test.
In a kind of optional embodiment, above-mentioned synchronous generator can also include：Current synchronization element, for obtaining
Take the power frequency of the primary equipment in transformer station where equipment under test.
Embodiment 3
According to embodiments of the present invention, a kind of signal sychronisation embodiment for Partial discharge detector is additionally provided.
The signal synchronizing method for Partial discharge detector in the embodiment of the present invention 1 can be in the device of the embodiment of the present invention 3
Perform.
Fig. 7 is a kind of signal sychronisation schematic diagram for Partial discharge detector according to embodiments of the present invention, such as
Shown in Fig. 7, the device includes：Acquisition module 701, determining module 703 and sending module 705.
Wherein, acquisition module 701, the operational factor for obtaining equipment under test；Determining module 703, for according to operation
The frequency of parameter determination synchronizing signal, wherein, synchronizing signal is used for Partial discharge detector is synchronous with equipment under test；Send mould
Block 705, for being sent to Partial discharge detector synchronizing signal by radio transmitting device.
From the foregoing, it will be observed that in the above embodiments of the present application, acquisition module 701 is by obtaining equipment under test in the process of running
Each operational factor (different according to the different modes taken, to obtain different operational factors), determining module 703 is according to these
Operational factor is obtained the frequency of Partial discharge detector's synchronizing signal synchronous with equipment under test, and sending module 705 is same by this
Step signal is sent into Partial discharge detector, has reached using the power frequency component of equipment under test to determine synchronizing signal, and lead to
Cross the mode being wirelessly transferred to send to the purpose of Partial discharge detector, it is achieved thereby that not limited by place and signal line length
System, and the technique effect of accuracy in detection is improved, and then existing Partial discharge detector is solved using internal self-produced signal
Or cause that the degree of accuracy is high, technical problem that is being limited by place with the power frequency component of the synchronous tested primary equipment of wired mode.
In a kind of optional embodiment, above-mentioned operational factor includes one of any as follows：Under equipment under test power-frequency voltage
In transformer station where low-tension supply frequency, the equipment under test of transformer station where flicker frequency, the equipment under test of fluorescent lamp once
The power frequency of equipment.
In a kind of optional embodiment, the flicker frequency of fluorescent lamp in the case where operational factor is equipment under test power-frequency voltage
In the case of, above-mentioned determining module 703 includes：First acquisition submodule, for obtaining fluorescent lamp under equipment under test power-frequency voltage
Flicker frequency；First determination sub-module, for using flicker frequency as synchronizing signal frequency.
It is the feelings of the low-tension supply frequency of transformer station where equipment under test in operational factor in a kind of optional embodiment
Under condition, above-mentioned determining module 703 includes：Second acquisition submodule, the low-tension supply for obtaining transformer station where equipment under test
Frequency；Second determination sub-module, for using low-tension supply frequency as synchronizing signal frequency.
In a kind of optional embodiment, in the electric current that operational factor is the primary equipment in transformer station where equipment under test
In the case of frequency, above-mentioned determining module 703 includes：3rd acquisition submodule, for obtaining in transformer station where equipment under test
Primary equipment power frequency；3rd determination sub-module, for using power frequency as synchronizing signal frequency.
The embodiments of the present invention are for illustration only, and the quality of embodiment is not represented.
In the above embodiment of the present invention, the description to each embodiment all emphasizes particularly on different fields, and does not have in certain embodiment
The part of detailed description, may refer to the associated description of other embodiment.
In several embodiments provided herein, it should be understood that disclosed technology contents, can be by other
Mode is realized.Wherein, device embodiment described above is only schematical, such as division of described unit, Ke Yiwei
A kind of division of logic function, can there is other dividing mode when actually realizing, such as multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored, or does not perform.Another, shown or discussed is mutual
Between coupling or direct-coupling or communication connection can be the INDIRECT COUPLING or communication link of unit or module by some interfaces
Connect, can be electrical or other forms.
The unit that is illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit
The part for showing can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On unit.Some or all of unit therein can be according to the actual needs selected to realize the purpose of this embodiment scheme.
In addition, during each functional unit in each embodiment of the invention can be integrated in a processing unit, it is also possible to
It is that unit is individually physically present, it is also possible to which two or more units are integrated in a unit.Above-mentioned integrated list
Unit can both be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.
If the integrated unit is to realize in the form of SFU software functional unit and as independent production marketing or use
When, can store in a computer read/write memory medium.Based on such understanding, technical scheme is substantially
The part for being contributed to prior art in other words or all or part of the technical scheme can be in the form of software products
Embody, the computer software product is stored in a storage medium, including some instructions are used to so that a computer
Equipment (can be personal computer, server or network equipment etc.) perform each embodiment methods described of the invention whole or
Part steps.And foregoing storage medium includes：USB flash disk, read-only storage (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic disc or CD etc. are various can be with store program codes
Medium.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of signal synchronizing method for Partial discharge detector, it is characterised in that including：
Obtain the operational factor of equipment under test；
The frequency of synchronizing signal is determined according to the operational factor, wherein, the synchronizing signal is used for Partial discharge detector
It is synchronous with the equipment under test；
The synchronizing signal is sent to the Partial discharge detector by radio transmitting device.
2. signal synchronizing method according to claim 1, it is characterised in that the operational factor include it is following it is any it
One：The flicker frequency of fluorescent lamp under the equipment under test power-frequency voltage, the low-tension supply of transformer station where the equipment under test are frequently
The power frequency of the primary equipment in transformer station where rate, the equipment under test.
3. signal synchronizing method according to claim 2, it is characterised in that in the operational factor be the equipment under test
Under power-frequency voltage in the case of the flicker frequency of fluorescent lamp, the frequency of synchronizing signal is determined according to the operational factor, including：
Obtain the flicker frequency of fluorescent lamp under the equipment under test power-frequency voltage；
Using the flicker frequency as the synchronizing signal frequency.
4. signal synchronizing method according to claim 2, it is characterised in that in the operational factor be the equipment under test
In the case of the low-tension supply frequency of place transformer station, the frequency of synchronizing signal is determined according to the operational factor, including：
Obtain the low-tension supply frequency of transformer station where the equipment under test；
Using the low-tension supply frequency as the synchronizing signal frequency.
5. signal synchronizing method according to claim 2, it is characterised in that in the operational factor be the equipment under test
In the case of the power frequency of the primary equipment in the transformer station of place, the frequency of synchronizing signal is determined according to the operational factor,
Including：
Obtain the power frequency of the primary equipment in transformer station where the equipment under test；
Using the power frequency as the synchronizing signal frequency.
6. a kind of signal synchronizing system for Partial discharge detector, it is characterised in that including：
Synchronous generator, the operational factor for obtaining equipment under test, synchronizing signal is determined according to the operational factor
Frequency, and the synchronizing signal is sent by radio transmitting device, wherein, the synchronizing signal is used for Partial discharge detector
It is synchronous with the equipment under test；
Radio receiver, is connected with the Partial discharge detector, for receiving the synchronizing signal, and synchronously believes described
Number transmit to the Partial discharge detector.
7. signal synchronizing system according to claim 6, it is characterised in that the synchronous generator includes：
Photo-sensitive cell, the flicker frequency for obtaining fluorescent lamp under the equipment under test power-frequency voltage.
8. signal synchronizing system according to claim 7, it is characterised in that the signal generator also includes：
Voltage synchronous element, the low-tension supply frequency for obtaining transformer station where the equipment under test.
9. signal synchronizing system according to claim 8, it is characterised in that the signal generator also includes：
Current synchronization element, the power frequency for obtaining the primary equipment in transformer station where the equipment under test.
10. a kind of signal sychronisation for Partial discharge detector, it is characterised in that including：
Acquisition module, the operational factor for obtaining equipment under test；
Determining module, the frequency for determining synchronizing signal according to the operational factor, wherein, the synchronizing signal is used for office
Portion's discharge detector is synchronous with the equipment under test；
Sending module, for being sent to the Partial discharge detector synchronizing signal by radio transmitting device.
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| CN201611138099.7A CN106771913A (en) | 2016-12-09 | 2016-12-09 | Signal synchronizing method, device and system for Partial discharge detector |
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| CN201611138099.7A CN106771913A (en) | 2016-12-09 | 2016-12-09 | Signal synchronizing method, device and system for Partial discharge detector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112485569A (en) * | 2020-11-23 | 2021-03-12 | 国网北京市电力公司 | High-frequency partial discharge detection device |
| CN112834873A (en) * | 2020-12-28 | 2021-05-25 | 深圳供电局有限公司 | Partial discharge test system and cable test system |
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