CN206601435U - The portable over-pressed harvester of full optics and system - Google Patents
The portable over-pressed harvester of full optics and system Download PDFInfo
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- CN206601435U CN206601435U CN201720284287.4U CN201720284287U CN206601435U CN 206601435 U CN206601435 U CN 206601435U CN 201720284287 U CN201720284287 U CN 201720284287U CN 206601435 U CN206601435 U CN 206601435U
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Abstract
The utility model discloses the over-pressed harvester of the portable full optics of one kind and system, the portable over-pressed harvester of full optics, including：Optical-electric module, data acquisition module and center control and the data processing module being sequentially connected, wherein, the optical-electric module includes light source transmitting element and opto-electronic receiver unit, and the light source transmitting element inputs the single polarization sent to optical electric field sensor；The opto-electronic receiver unit gathers the optical signal containing voltage change information of the optical electric field sensor output, is converted into voltage signal, sends to data acquisition module；The voltage signal is converted from analog into data signal by the data acquisition module, is sent to the center control and data processing module；The center control and data processing module are monitored and gathered over-pressed information to the data signal received.The utility model provides the Portable transformer substation overvoltage collecting device that can be measured to space electric field waveform near transmission line of electricity.
Description
Technical field
The utility model is related to over-pressed acquisition technique, espespecially a kind of portable over-pressed harvester of full optics and system.
Background technology
Overvoltage is that the abnormal voltage more than operating voltage that power system occurs under given conditions is raised, and belongs to electricity
A kind of electromagnetic distu phenomenon in Force system.The insulation of electrical equipment is resistant to operating voltage for a long time, while must also be able to hold
By the overvoltage of certain amplitude, it so just can guarantee that power system security is reliably run.
Overvoltage exceptionally overvoltage and the major class of internal overvoltage two.
External overvoltage is also known as lightning surge, atmospheric over-voltage.As the thundercloud in air to caused by ground discharge.Point
Attack two kinds of lightning overvoltage and lightning induced voltage directly.It is that lightning directly hits electrical equipment current-carrying part when institute to attack lightning overvoltage directly
The overvoltage of appearance.Lightning hits powered conductor, referred to as such as overhead transmission line conductor, direct stroke.Lightning is hit normally
In the case of be in ground state conductor, such as iron tower of power transmission line, make its current potential rise after and powered conductive discharge is claimed
For counterattack.Direct lightning strike Overvoltage Amplitude can destroy the insulation of electrician's facility, cause short circuit grounding failure up to volts up to a million.Sensing
Lightning overvoltage is that lightning hits electrical equipment ground nearby, is made not due to the drastically change of external electromagnetic field in discharge process
The overvoltage induced on the electrical equipment (including secondary device, communication equipment) being directly struck by lightning.Therefore, overhead transmission line
Road need to set up lightning conducter and earthing or grounding means etc. and be protected.Generally transmission line of electricity is represented with line lightning resisting level and tripping rate with lightning strike
Lightning protection capability.
Internal overvoltage is overvoltage caused by power system internal operation mode changes.There are transient overvoltage, behaviour
Make overvoltage and resonance overvoltage.Transient overvoltage is due to breaker operator or occurs short trouble, undergoes power system
Again the overvoltage occurred in the case of certain temporary stabilization is reached after transient process, also known as power-frequency voltage is raised.Operation
Overvoltage is due to the shorter overvoltage of decay very fast duration caused by progress breaker operator or generation suddenly-applied short circuit.
Resonance overvoltage is that under some modes of connection with supply frequency resonance institute occurs for the energy-storage travelling wave tube such as inductance, electric capacity in power system
The overvoltage caused.
Overvoltage is monitored, is any limitation as so as to take measures, for electrical equipment manufacture and power system
Operation is all significant.
What the over-voltage measurement method of more maturation was mainly utilized is the principle of capacitive divider at present.Using high pressure partial pressure
Device or condenser-type terminal end shield connect the mode of low-voltage arm divider, and high side voltage is converted into collectable low-voltage believes
Number.But the program is influenceed by factors such as stray capacitance, inductance, causes measurement accuracy not high enough.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provides a kind of over-pressed harvester of portable full optics and is
System, can be acquired to the overvoltage of power system.
In order to reach the utility model purpose, the utility model provides a kind of over-pressed harvester of portable full optics,
Including：Optical-electric module, data acquisition module and center control and the data processing module being sequentially connected, wherein,
The optical-electric module includes light source transmitting element and opto-electronic receiver unit, and the light source transmitting element is by the list sent
Polarised light is inputted to optical electric field sensor；It is electric that the opto-electronic receiver unit gathers containing for the optical electric field sensor output
The optical signal of change information is pressed, voltage signal is converted into, sent to data acquisition module；
The voltage signal is converted from analog into data signal by the data acquisition module, is sent to the center
Control and data processing module；
The center control and data processing module are monitored and gathered over-pressed information to the data signal received.
Alternatively, the over-pressed harvester of portable full optics also includes being connected with central control and data processing module
Human-computer interface module, wherein,
The human-computer interface module receives the input of user, and the display center control and data processing module is defeated
Go out.
Alternatively, the over-pressed harvester of the portable full optics also include respectively with the optical-electric module, data acquisition
The Power Monitoring Unit that module, center control and data processing module are connected with human-computer interface module, wherein, the Power Supply Monitoring
Module includes connected power supply supervision unit and charge/discharge unit,
The power supply supervision unit is optical-electric module, number using the alternating current of AC power or the direct current of charge/discharge unit
Working power is provided according to acquisition module, center control and data processing module and human-computer interface module and carries out Power Supply Monitoring；
The charge/discharge unit is charged when the portable over-pressed harvester of full optics connects AC power,
When the over-pressed harvester of the portable full optics disconnects with AC power, be the optical-electric module, data acquisition module, in
Centre control and data processing module, human-computer interface module and power supply supervision unit are powered.
Alternatively, the optical-electric module, data acquisition module, center control and data processing module, human-computer interface module
It is arranged on Power Monitoring Unit in Portable type safety protection case, the Portable type safety protection case includes cabinet panel, described
Cabinet panel is connected with the optical-electric module, center control and data processing module and Power Monitoring Unit.
Alternatively, it is provided with the cabinet panel：The fiber adapter being connected with the optical-electric module, with the center
Control and data processing module connected network interface and data-interface, the power switch being connected with the Power Monitoring Unit and
Power supply indicator.
Alternatively, the light source transmitting element is the super-radiance light emitting diode SLD lasers of single mode.
Alternatively, the opto-electronic receiver unit is photodetector.
Alternatively, the center is controlled and data processing module is PC104 bus industrial control computers.
The utility model also provides a kind of over-pressed acquisition system of portable full optics, including：Portable full optics overvoltage is adopted
Acquisition means and optical electric field sensor, the portable over-pressed harvester of full optics pass through optical fiber phase with optical electric field sensor
Connect, wherein,
The over-pressed harvester of portable full optics, including：The optical-electric module that is sequentially connected, data acquisition module and in
Centre control and data processing module, wherein, the optical-electric module includes light source transmitting element and opto-electronic receiver unit, the light source
Transmitting element inputs the single polarization sent to the optical electric field sensor；The opto-electronic receiver unit gathers the optics
The optical signal containing voltage change information of electric-field sensor output, and voltage signal is converted into, send to data acquisition module；
The voltage signal is converted from analog into data signal by the data acquisition module, is sent to the center control and number
According to processing module；The center control and data processing module are monitored and gathered overvoltage letter to the data signal received
Breath；
The optical electric field sensor receives the light source transmitting element and sends single polarization, senses the electric field of transmission line of electricity
Change, by the optical signal containing voltage change information to the opto-electronic receiver unit.
Alternatively, the shown over-pressed harvester of portable full optics also includes being connected with central control and data processing module
Human-computer interface module, and respectively with the optical-electric module, data acquisition module, center control and data processing module and people
The connected Power Monitoring Unit of machine interface module, wherein,
The human-computer interface module receives the input of user, and the display center control and data processing module is defeated
Go out；
The Power Monitoring Unit includes connected power supply supervision unit and charge/discharge unit, and the power supply supervision unit makes
It is optical-electric module, data acquisition module, center control and data with the alternating current of AC power or the direct current of charge/discharge unit
Processing module and human-computer interface module provide working power and carry out Power Supply Monitoring；The charge/discharge unit is described portable complete
When optics overvoltage harvester connects AC power, charged, in the portable over-pressed harvester of full optics with exchanging
Power supply disconnect when, be the optical-electric module, data acquisition module, center control and data processing module, human-computer interface module and
Power supply supervision unit is powered.
The over-pressed harvester of portable full optics of the utility model embodiment, including：Optical-electric module, the number being sequentially connected
According to acquisition module and center control and data processing module, wherein, the optical-electric module includes light source transmitting element and photoelectricity connects
Unit is received, the light source transmitting element inputs the single polarization sent to optical electric field sensor；The opto-electronic receiver unit
The optical signal containing voltage change information of the optical electric field sensor output is gathered, voltage signal is converted into, sends to number
According to acquisition module；The voltage signal is converted from analog into data signal by the data acquisition module, is sent to described
Center control and data processing module；It is described center control and data processing module the data signal received is monitored with
And the over-pressed information of collection.The utility model is portable there is provided what can be measured to space electric field waveform near transmission line of electricity
Transformer station's overvoltage collecting device, by the utility model, can fast and effectively be completed to external overvoltage and internal overvoltage
The work of collection, scientific basis can be provided by hanging net operation for the crash analysis of power system, be the normal operation of power network
Avoid providing effective guarantee with accident.
Brief description of the drawings
Accompanying drawing is used for providing and further understanding technical solutions of the utility model, and constitutes a part for specification,
It is used to explain the technical solution of the utility model together with embodiments herein, does not constitute to technical solutions of the utility model
Limitation.
Fig. 1 is the over-pressed acquisition system schematic diagram of portable full optics of the utility model embodiment；
Fig. 2 is the over-pressed harvester schematic diagram of portable full optics of the utility model embodiment；
Fig. 3 is the schematic appearance of the Portable type safety protection case of the utility model embodiment.
Embodiment
For the purpose of this utility model, technical scheme and advantage is more clearly understood, below in conjunction with accompanying drawing to this
The embodiment of utility model is described in detail.It should be noted that in the case where not conflicting, embodiment in the application and
Feature in embodiment can be mutually combined.
As shown in figure 1, the over-pressed acquisition system of portable full optics of the utility model embodiment, including：Portable full light
Over-pressed harvester 100 and optical electric field sensor 200 are learned, the portable over-pressed harvester of full optics is passed with optical electric-field
Sensor is connected by optical fiber.
Wherein, the light source that the optical electric field sensor 200 is received in the over-pressed harvester 100 of portable full optics is sent
Unit sends single polarization, senses the electric field change of transmission line of electricity, by the optical signal containing voltage change information to portable complete
Opto-electronic receiver unit in optics overvoltage harvester 100.
Wherein, the optical electric field sensor 200, receives single polarization by input optical fibre, single polarization is decomposed into
The two-way polarized light signal propagated in the fast axle and slow axis of sensor crystal, and for induction power system (such as such as Fig. 1 institutes
The transmission line of electricity or charging equipment shown) in voltage produce electric field, based on Pockels effect, the electric field of sensor sensing changes
The refractive index of light is propagated in twin crystal fast axle and slow axis, two-way light is modulated, produces two-way light relative with electric field level
The phase difference answered, two-way light is interfered in the output end of sensor crystal, is obtained including voltage change in power system and is believed
The elliptical polarization laser of breath, the opto-electronic receiver into the over-pressed harvester 100 of portable full optics is sent by output optical fibre
Unit.
As shown in Fig. 2 the over-pressed harvester 100 of portable full optics of the utility model embodiment, including：It is sequentially connected
Optical-electric module 110, data acquisition module 120 and center control and data processing module 130, wherein,
The optical-electric module 110 includes light source transmitting element 111 and opto-electronic receiver unit 112, the light source transmitting element
111 input the single polarization sent to the optical electric field sensor 200；The opto-electronic receiver unit 112 gathers the light
The optical signal containing voltage change information that electric-field sensor 200 is exported is learned, and is converted into voltage signal, is sent to data acquisition
Module 120.
The light source transmitting element 111 can be realized that lasing light emitter can use the SLD (Super of single mode by lasing light emitter
Luminescent diodes, super-radiance light emitting diode) laser, use wide spectrum, highly reliable, low coherence SLD for
Core devices, have the advantages that output power, stability are high.
The opto-electronic receiver unit 112 can use photodetector, and it is simulated light detecting module, is integrated with high-speed response
PIN photoelectric detector and low-noise amplifier, optical fiber or free space coupling, SMA connectors output, with high-gain, Gao Ling
The characteristics of sensitivity, flat gain.The collocation flange-interface of opto-electronic receiver unit 112 can effectively ensure that the stability of signal.Photoelectricity
The shell of module 110 can use screening housing, effectively completely cut off external disturbance, improve signal stabilization.
The voltage signal is converted from analog into data signal by the data acquisition module 120, is sent to described
Center control and data processing module 130；
Data acquisition module 120 can use high-speed data acquisition card, for example, realized using Pico5243B oscillographs, and it has
There is 100MHz bandwidth, 1Gs/s sample frequencys, stability is good, the features such as low in energy consumption.
Can be using the communication of BNC coaxial shielded cables between optical-electric module 110 and data acquisition module 120.
The center control and 130 pairs of data signals received of data processing module are monitored and gathered overvoltage letter
Breath.
Center control and data processing module 130 can be industrial control computer mainboards, for example with grinding magnificent technical grade mainboard
PCM3362, it uses Intel Atom N450 processors and up to 2GB SDRAM (Synchronous Dynamic
Random Access Memory, synchronous DRAM), chipset is N270 series, leaves 2GB flash (flash memory)
And 4 USB (Universal Serial Bus, USB) interfaces, the big 1600Hz of front-side bus frequency, with speed
Hurry up, flexible working mode, reliability are high, information processing capability is strong, cost is low, applied widely, super low-power consumption the features such as.
Can be using high speed data bus communication between data acquisition module 120 and center control and data processing module 130.
Alternatively, the over-pressed harvester 100 of portable full optics, in addition to central control and data processing module 130
Connected human-computer interface module 140, wherein,
The human-computer interface module 140 receives the input of user, and shows the center control and data processing module
Output.
The human-computer interface module 140 can be the combination of touch-screen or display screen and input equipment, described defeated
Enter one or more combinations that equipment can be keyboard, handwriting pad, mouse etc..
Alternatively, the over-pressed harvester 100 of portable full optics, in addition to adopt respectively with the optical-electric module 110, data
The Power Monitoring Unit 150 that collection module 120, center control and data processing module 130 are connected with human-computer interface module 140, its
In, the Power Monitoring Unit 150 includes connected power supply supervision unit 151 and charge/discharge unit 152.
The power supply supervision unit 151 is photoelectricity using the alternating current of AC power or the direct current of charge/discharge unit 151
Module 110, data acquisition module 120, center control and data processing module 130 and human-computer interface module 140 provide work electricity
Source simultaneously carries out Power Supply Monitoring.
The power supply supervision unit 151 has power protection, monitoring battery electric quantity, and low-voltage is alarmed, the work(such as charging instruction
Can there is provided the hand switch of the power on/off of charge/discharge unit 152.
The charge/discharge unit 152 is carried out when the portable over-pressed harvester 100 of full optics connects AC power
Charging, is the optical-electric module 110, data when the portable over-pressed harvester 100 of full optics disconnects with AC power
Acquisition module 120, center control and data processing module 130, human-computer interface module 140 and power supply supervision unit 150 are powered.
The charge/discharge unit 152 can be realized using battery.
Alternatively, the optical-electric module 110, data acquisition module 120, center control and data processing module 130, man-machine
Interface module 140 and Power Monitoring Unit 150 are arranged in Portable type safety protection case.
As shown in figure 3, casing uses the Portable type safety protection case of military standard, with preferable shockproof anti-shot ability,
Effectively internal module can be protected, so as to the different emergency case of middle reply that works at the scene.
The Portable type safety protection case includes cabinet panel, and the cabinet panel is controlled with the optical-electric module 110, center
System and data processing module 130 are connected with Power Monitoring Unit 150.
Wherein, can be set on the cabinet panel has：Fiber adapter (the FC/ being connected with the optical-electric module 110
APC), (can be with the center control and the network interface (Ethernet interface) that is connected of data processing module 130 and data-interface
Have two or more high speed interfaces, such as USB interface), the power switch and electricity being connected with the Power Monitoring Unit 150
Source indicator lamp.
Power safety also can be set on cabinet panel, the power switch may include total power switch, optical-electric module switch,
Power supply indicator may include low pressure alarming lamp and charging indicator light, and low pressure alarming lamp extinguishes when system is normally run, during low pressure
Flicker.Charging indicator light flashes in charging, and charging complete duration is bright.
During measurement, AC power switchs to power supply needed for measuring by Power Monitoring Unit 150 and encouraged, and is that whole system is supplied
Electricity, 150 pieces of energization situations to whole system various pieces of Power Monitoring Unit are monitored in real time.Optical-electric module 110 will swash
Optical signal is converted to electric signal and provides test resource for high-Speed Data-Acquisition Module 120, and high-Speed Data-Acquisition Module 120 passes through it
Receiving terminal is acquired to the signal of feedback, and transmits to central control and data processing module 130 to carry out the analysis of data
And storage.
To ensure normal operation, the over-pressed harvester of portable full optics and system of the utility model embodiment have such as
Lower safety Design：
1st, error-preventive design：
To eliminate the possibility that human error is produced in test operation, error-preventive design is carried out, concrete measure has：
Adapter is respectively provided with unique corresponding supporting cable and interface；
Each connecting test hole, switch, Insurance Block, there is clearly mark on cable, instrument connection, switch are added with different colours
To distinguish, cable Unified number.
2nd, power-supply system safe design：
With overcurrent protection function；Adapter input power has overcurrent protection, and dc source is designed with anti-reverse protection
Circuit；
Power Monitoring Unit power input has counnter attack connection function；
Being set on cabinet panel under master switch, fortuitous event can all power supply of cutting system immediately；
There is obvious warning label at dangerous voltage and by line with being safely reliably connected, realize earth leakage protective to ensure
Use safety.
3rd, filtering, isolation design
General supply input is filtered, suppresses the Conduction Interference of power line.
In summary, the utility model is portable there is provided what can be measured to space electric field waveform near transmission line of electricity
Formula transformer station overvoltage collecting device, by the utility model, can fast and effectively be completed to external overvoltage and internal overvoltage
Collection work, can provide scientific basis for the crash analysis of power system by hanging net operation, be the normal fortune of power network
Row avoids providing effective guarantee with accident.All constituents use work in the portable over-pressed harvester of full optics and system
Industry level goods shelf productses, it is stable, it is easy to safeguard, it is easy to maintenance.
Claims (10)
1. a kind of over-pressed harvester of portable full optics, it is characterised in that including：The optical-electric module that is sequentially connected, data are adopted
Collect module and center control and data processing module, wherein,
The optical-electric module includes light source transmitting element and opto-electronic receiver unit, and the light source transmitting element polarizes the list sent
Light is inputted to optical electric field sensor；The opto-electronic receiver unit gathers becoming containing voltage for the optical electric field sensor output
Change the optical signal of information, be converted into voltage signal, send to data acquisition module；
The voltage signal is converted from analog into data signal by the data acquisition module, is sent to the center control
And data processing module；
The center control and data processing module are monitored and gathered over-pressed information to the data signal received.
2. the over-pressed harvester of portable full optics according to claim 1, it is characterised in that also including with central control
And the connected human-computer interface module of data processing module, wherein,
The human-computer interface module receives the input of user, and the display center control and the output of data processing module.
3. the over-pressed harvester of portable full optics according to claim 2, it is characterised in that also including respectively with it is described
The Power Monitoring Unit that optical-electric module, data acquisition module, center control and data processing module are connected with human-computer interface module,
Wherein, the Power Monitoring Unit includes connected power supply supervision unit and charge/discharge unit,
The power supply supervision unit is optical-electric module using the alternating current of AC power or the direct current of charge/discharge unit, data are adopted
Collection module, center control and data processing module and human-computer interface module provide working power and carry out Power Supply Monitoring；
The charge/discharge unit is charged, in institute when the portable over-pressed harvester of full optics connects AC power
It is the optical-electric module, data acquisition module, center control when stating the over-pressed harvester of portable full optics with AC power disconnection
System and data processing module, human-computer interface module and power supply supervision unit are powered.
4. the over-pressed harvester of portable full optics according to claim 3, it is characterised in that the optical-electric module, number
It is arranged on according to acquisition module, center control and data processing module, human-computer interface module and Power Monitoring Unit portable secured
In protective housing, the Portable type safety protection case includes cabinet panel, and the cabinet panel is controlled with the optical-electric module, center
And data processing module is connected with Power Monitoring Unit.
5. the over-pressed harvester of portable full optics according to claim 4, it is characterised in that set on the cabinet panel
It is equipped with：The fiber adapter being connected with the optical-electric module, the network being connected with the center control and data processing module connects
Mouth and data-interface, the power switch and power supply indicator being connected with the Power Monitoring Unit.
6. the over-pressed harvester of portable full optics according to any one in Claims 1 to 5, it is characterised in that
The light source transmitting element is the super-radiance light emitting diode SLD lasers of single mode.
7. the over-pressed harvester of portable full optics according to any one in Claims 1 to 5, it is characterised in that
The opto-electronic receiver unit is photodetector.
8. the over-pressed harvester of portable full optics according to any one in Claims 1 to 5, it is characterised in that
The center is controlled and data processing module is PC104 bus industrial control computers.
9. a kind of over-pressed acquisition system of portable full optics, it is characterised in that including：The over-pressed harvester of portable full optics and
Optical electric field sensor, the portable over-pressed harvester of full optics is connected with optical electric field sensor by optical fiber, wherein,
The over-pressed harvester of portable full optics, including：Optical-electric module, data acquisition module and the center control being sequentially connected
System and data processing module, wherein, the optical-electric module includes light source transmitting element and opto-electronic receiver unit, and the light source is sent
Unit inputs the single polarization sent to the optical electric field sensor；The opto-electronic receiver unit gathers the optical electric-field
The optical signal containing voltage change information of sensor output, and voltage signal is converted into, send to data acquisition module；It is described
The voltage signal is converted from analog into data signal by data acquisition module, is sent to the center control and data
Manage module；The center control and data processing module are monitored and gathered over-pressed information to the data signal received；
The optical electric field sensor receives the light source transmitting element and sends single polarization, and the electric field of sensing transmission line of electricity becomes
Change, by the optical signal containing voltage change information to the opto-electronic receiver unit.
10. the over-pressed acquisition system of portable full optics according to claim 9, it is characterised in that shown portable full light
Learn the human-computer interface module that over-pressed harvester also includes being connected with central control and data processing module, and respectively with it is described
The Power Monitoring Unit that optical-electric module, data acquisition module, center control and data processing module are connected with human-computer interface module,
Wherein,
The human-computer interface module receives the input of user, and the display center control and the output of data processing module；
The Power Monitoring Unit includes connected power supply supervision unit and charge/discharge unit, and the power supply supervision unit uses friendship
The direct current of the alternating current or charge/discharge unit that flow power supply is optical-electric module, data acquisition module, center control and data processing
Module and human-computer interface module provide working power and carry out Power Supply Monitoring；The charge/discharge unit is in the portable full optics
When over-pressed harvester connects AC power, charged, in the portable over-pressed harvester of full optics and AC power
It is the optical-electric module, data acquisition module, center control and data processing module, human-computer interface module and power supply during disconnection
Monitoring unit is powered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720284287.4U CN206601435U (en) | 2017-03-22 | 2017-03-22 | The portable over-pressed harvester of full optics and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720284287.4U CN206601435U (en) | 2017-03-22 | 2017-03-22 | The portable over-pressed harvester of full optics and system |
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| Publication Number | Publication Date |
|---|---|
| CN206601435U true CN206601435U (en) | 2017-10-31 |
Family
ID=60145664
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| CN201720284287.4U Active CN206601435U (en) | 2017-03-22 | 2017-03-22 | The portable over-pressed harvester of full optics and system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109709382A (en) * | 2019-03-13 | 2019-05-03 | 清华四川能源互联网研究院 | A kind of fixed substation's transient overvoltage real-time monitoring device |
| CN109709381A (en) * | 2019-03-13 | 2019-05-03 | 清华四川能源互联网研究院 | A kind of Portable transformer substation transient overvoltage real-time monitoring device |
| CN112526240A (en) * | 2020-11-30 | 2021-03-19 | 广东电网有限责任公司 | Non-contact broadband overvoltage online monitoring device |
-
2017
- 2017-03-22 CN CN201720284287.4U patent/CN206601435U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109709382A (en) * | 2019-03-13 | 2019-05-03 | 清华四川能源互联网研究院 | A kind of fixed substation's transient overvoltage real-time monitoring device |
| CN109709381A (en) * | 2019-03-13 | 2019-05-03 | 清华四川能源互联网研究院 | A kind of Portable transformer substation transient overvoltage real-time monitoring device |
| CN112526240A (en) * | 2020-11-30 | 2021-03-19 | 广东电网有限责任公司 | Non-contact broadband overvoltage online monitoring device |
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