CN108199295A - A kind of novel power transmission line insulation protection network - Google Patents
A kind of novel power transmission line insulation protection network Download PDFInfo
- Publication number
- CN108199295A CN108199295A CN201810019448.6A CN201810019448A CN108199295A CN 108199295 A CN108199295 A CN 108199295A CN 201810019448 A CN201810019448 A CN 201810019448A CN 108199295 A CN108199295 A CN 108199295A
- Authority
- CN
- China
- Prior art keywords
- connection
- fixed link
- unit
- transmission line
- protection network
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
Abstract
The present invention relates to a kind of novel power transmission line insulation protection network, including the first insulating support pillar, the second insulating support pillar and telescope support；First insulating support pillar and the second insulating support pillar size structure are identical；First insulating support pillar includes pedestal, and the top of pedestal offers accommodating chamber, and telescoping tube is equipped in the accommodating chamber, and the telescoping tube includes the casing of no less than two, is mutually socketed between the casing of no less than two；Connecting plate is welded on the casing at the top of telescoping tube；The connecting plate is equipped with mounting hole；The mounting hole is used to connect telescope support；First insulating support pillar is connected by one end of mounting hole and telescope support；Second insulating support pillar is connected by the other end of mounting hole and telescope support.
Description
Technical field
The invention belongs to transmission line of electricity protection technology fields, and in particular to a kind of novel power transmission line insulation protection network.
Background technology
With the continuous development of urban infrastructure construction, the various constructions under ultra-high-tension power transmission line are also more next
It is more, so in the construction process, various heavy construction equipments are possible to touch or hang up high voltage power transmission due to maloperation
Circuit, so as to not only affect the normal operation of transmission line of electricity, while be also easy to cause safety accident；It is further, since high
Pressure transmission line self deterioration reason or in the case of by high wind, transmission line of electricity, which is also possible to be broken, to fall, so as to
The construction personnel on ground may also can be damaged by dropping down onto the circuit on ground, this not only substantially increases safe thing
Therefore hidden danger, while also it is unfavorable for ensureing the personal safety of construction personnel.This is in place of the deficiencies in the prior art.
Invention content
It is an object of the present invention to overcome more than the deficiencies in the prior art, the technical problem to be solved by the present invention is to carry
For a kind of novel power transmission line insulation protection network, effective isolating and protecting can be carried out to transmission line of electricity, so as to ensure significantly
The normal operation of transmission line of electricity and the personal safety of construction personnel.
In order to achieve the above object, the technical scheme is that：
A kind of novel power transmission line insulation protection network, including the first insulating support pillar, the second insulating support pillar and flexible branch
Frame；
First insulating support pillar and the second insulating support pillar size structure are identical；
First insulating support pillar includes pedestal, and the top of pedestal offers accommodating chamber, telescoping tube is equipped in the accommodating chamber,
The telescoping tube includes the casing of no less than two, is mutually socketed between the casing of no less than two；At the top of telescoping tube
Connecting plate is welded on casing；The connecting plate is equipped with mounting hole；The mounting hole is used to connect telescope support；
First insulating support pillar is connected by one end of the mounting hole on this stent strut connecting plate and telescope support；
Second insulating support pillar is connected by the other end of the mounting hole on this stent strut connecting plate and telescope support.
Preferably, stretch bottom of the tube casing upper end by retaining ring be fixedly connected there are four reinforce strut；It is each to add
Clamped bar first end is fixedly connected by retaining ring with casing, and each second end for reinforcing strut is connected with support platelet, each
It reinforces strut and telescoping tube is at an angle of to set and pass through and platelet is supported to support to ground.
Preferably, telescope support includes telescopic unit, the first installation end and the second installation end；First installation end passes through flexible
Unit is connect with the second installation end；
First installation end is connect with the connecting plate on the first insulating support pillar；On second installation end and the second insulating support pillar
Connecting plate connection.
Preferably, the first installation end includes the first fixed link and the second fixed link；
The first end of first fixed link is flexibly connected with the first end of the second fixed link；
Second installation end includes third fixed link and the 4th fixed link；
The first end of third fixed link is flexibly connected with the first end of the 4th fixed link；
Telescopic unit includes the scissor unit of several flexible connections, first scissor unit first end and the first fixed link
Second end is flexibly connected；
The second end of first scissor unit is flexibly connected with the second end of the second fixed link；
The third end of first scissor unit is flexibly connected with the first end of second scissor unit；
4th end of first scissor unit is flexibly connected with the second end of second scissor unit；
The third end of the last one scissor unit is flexibly connected with the second end of third fixed link；
4th end of the last one scissor unit is flexibly connected with the second end of the 4th fixed link.
Preferably, cannula tip position is set there are two pin hole；The madial wall of casing is equipped with two guide grooves；Outside casing
Wall is set there are two protrusion, and raised position is adapted with the position of guide groove, and the pin hole between casing and casing is connected by axis pin
It connects.
Preferably, vibrating sensor, controller and alarm, and the vibrating sensor are further respectively had on protection network
The controller is connected to, the controller is connected to the alarm.
Preferably, be respectively equipped with ambient light sensor and LED light on telescope support, and the ambient light sensor with
The controller connection, the controller are connected by adjusting the input terminal of unit and LED light.
Preferably, it adjusts unit and includes DC-DC module, the Enable Pin of the DC-DC module is connected to controller；
The positive power source terminal of the DC-DC module is connected with the output terminal of voltage conversion unit, and the signal output end of DC-DC module leads to
The first inductance connection is crossed to LED light negative terminal；
The signal output end of DC-DC module is also connected to the output terminal of voltage conversion unit by third diode；
The output terminal of the voltage conversion unit is also connected to by the first resistor, second resistance and 3rd resistor that are connected in parallel
The electric current output setting end of DC-DC module, the anode of the LED light and the electric current output setting end connection of DC-DC module；
The both ends of LED light are parallel with third capacitance；
The power supply negative input end ground connection of DC-DC module.
Preferably, voltage conversion unit includes power supply, the first power supply chip and second source chip；
The output terminal of first power supply chip is connect with voltage detection unit；
Voltage detection unit is connected with phase inverter；
The output terminal of phase inverter is connect with the Enable Pin of second source chip；
The output terminal of first power supply chip is also associated with the anode of the first diode；
The output terminal of second source chip is connected with the anode of the second diode；
Tie point after the connection of the cathode of the cathode of first diode and the second diode is the output terminal of voltage conversion unit；
Power supply is connected respectively to the input terminal of the first power supply chip and the input terminal of second source chip；
The output terminal of first power supply chip passes through the first capacity earth；
The output terminal of second source chip also passes through the second capacity earth.
Preferably, in the outer surface of the telescope support covered with rubber layer.
The beneficial effects of the invention are as follows：By using above structure, the present invention transmission line of electricity can be carried out effectively every
From protection, so as to ensure that the normal operation of transmission line of electricity and the personal safety of construction personnel significantly.
In addition, design principle of the present invention is reliable, and it is simple in structure, there is very extensive application prospect.
It can be seen that compared with prior art, the present invention improve with prominent substantive distinguishing features and significantly, implement
Advantageous effect be also obvious.
Description of the drawings
Fig. 1 is a kind of novel power transmission line insulation protecting screen structure schematic diagram；
Fig. 2 is telescope support structure diagram in Fig. 1；
Element circuit connection figure is converted and adjusted to Fig. 3 voltages.
Specific embodiment
Below in conjunction with the accompanying drawings and pass through specific embodiment the present invention will be described in detail, following embodiment is to the present invention
Explanation, and the invention is not limited in implementation below.
As shown in Figure 1-Figure 3, a kind of novel power transmission line insulation protection network provided in an embodiment of the present invention, including first absolutely
Edge stent strut 1, the second insulating support pillar 2 and telescope support 3；
First insulating support pillar 1 is identical with 2 size structure of the second insulating support pillar；
First insulating support pillar 1 includes pedestal 1.3, and the top of pedestal 1.3 offers accommodating chamber, is equipped in the accommodating chamber
Telescoping tube, the telescoping tube include the casing of no less than two, are mutually socketed between the casing of no less than two；Positioned at telescoping tube
Connecting plate 1.6 is welded on the casing at top；The connecting plate 1.6 is equipped with mounting hole 1.1；The mounting hole 1.1 is used to connect
Connect telescope support 3；
First insulating support pillar 1 is connect by mounting hole 1.1 with one end of telescope support 3；
Second insulating support pillar 2 is connect by mounting hole 2.1 with the other end of telescope support 3.
In the present embodiment, the upper end of the casing of flexible bottom of the tube is fixedly connected with that there are four reinforce strut by retaining ring 1.2
1.4；Each 1.4 first end of strut of reinforcing is fixedly connected by retaining ring 1.2 with casing, each second end for reinforcing strut 1.4
Support platelet 1.5 is connected with, each reinforcing strut 1.4, which is at an angle of to set and pass through with telescoping tube, supports platelet 1.5 to support to ground
Face.
In the present embodiment, telescope support includes telescopic unit 3.3, the first installation end 3.1 and the second installation end 3.2；First
Installation end 3.1 is connect by telescopic unit 3.3 with the second installation end 3.2；
First installation end 3.1 is connect with the connecting plate 1.6 on the first insulating support pillar；Second installation end 3.1 and the second insulation
Connecting plate 2.6 in stent strut connects.
First 3.1 ends of installation include the first fixed link 3.11 and the second fixed link 3.12；
The first end of first fixed link 3.11 is flexibly connected with the first end of the second fixed link 3.12；
Second installation end 3.2 includes 3.21 and the 4th fixed link 3.22 of third fixed link；
The first end of third fixed link 3.21 is flexibly connected with the first end of the 4th fixed link 3.22；
Telescopic unit 3.3 includes the scissor unit 3.31 of several flexible connections, first scissor unit first end and first
The second end flexible connection of fixed link 3.11；
The second end of first scissor unit is flexibly connected with the second end of the second fixed link 3.12；
The third end of first scissor unit is flexibly connected with the first end of second scissor unit；
4th end of first scissor unit is flexibly connected with the second end of second scissor unit；
The third end of the last one scissor unit is flexibly connected with the second end of third fixed link 3.21；
4th end of the last one scissor unit is flexibly connected with the second end of the 4th fixed link 3.22.
In the present embodiment, cannula tip position is set there are two pin hole；The madial wall of casing is equipped with two guide grooves；Casing
Outer wall set there are two protrusion, raised position is adapted with the position of guide groove, and the pin hole between casing and casing passes through pin
Axis connection.
Vibrating sensor, controller 15 and alarm are further respectively had on protection network, and the vibrating sensor connects
To the controller 15, the controller 15 is connected to the alarm.When protection network generates shake when being collided when reasons
When dynamic, the real-time monitoring information of vibrating sensor, and controller 15 is transferred to, controller 15 starts alarm and alarms, so as to
Construction personnel is reminded to take care in time, transmission line of electricity is avoided to be collided or scrape, has ensured the safety of transmission line of electricity.
In the present embodiment, ambient light sensor 16 and LED light, and the ambient brightness are respectively equipped on telescope support 3
Sensor 16 is connect with the controller 15, and the controller 15 is connect by adjusting unit 18 with LED light.
It adjusts unit 18 and is connected to controller 15 including DC-DC module U1, the Enable Pin EN of the DC-DC module U1；
The positive power source terminal VIN+ of the DC-DC module U1 is connected with the output terminal of voltage conversion unit 20, the letter of DC-DC module U1
Number output terminal is connected to LED light negative terminal by the first inductance L1；
The signal output end of DC-DC module U1 is also connected to the output terminal of voltage conversion unit 20 by the three or two pole D3 pipes；
First resistor R1, second resistance R2 and 3rd resistor of the output terminal of the voltage conversion unit 20 also by being connected in parallel
R3 is connected to the electric current output setting end SEN of DC-DC module U1, and the anode of the LED light is exported with the electric current of DC-DC module U1
Set end SEN connections；
The both ends of LED light are parallel with third capacitance C3；
The power supply negative input end ground connection of DC-DC module U1.
Voltage conversion unit 20 includes power supply 19, the first power supply chip 11 and second source chip 12；
The output terminal of first power supply chip 11 is connect with voltage detection unit 13；
Voltage detection unit 13 and phase inverter 14 connect；
The output terminal of phase inverter 14 is connect with the Enable Pin of second source chip 12；
The output terminal of first power supply chip 11 is also associated with the anode of the first diode D1；
The output terminal of second source chip 12 is connected with the anode of the second diode D2；
Tie point after the connection of the cathode of the cathode of first diode D1 and the second diode D2 is the defeated of voltage conversion unit 20
Outlet；
Power supply 19 is connected respectively to the input terminal of the first power supply chip 11 and the input terminal of second source chip 12；
The output terminal of first power supply chip 11 is grounded by the first capacitance C1；
The output terminal of second source chip 12 is also grounded by the second capacitance C2.
The outer surface of the telescope support 3 is covered with rubber layer.
First power supply chip 11 and second source chip 12 are internally provided with the threshold value of detection voltage, during normal work, voltage
Detection unit 13 exports the inverted device 14 of high level signal and exports low level signal to the Enable Pin of second source chip 12, and second
Power supply chip 12 does not work, and the electric energy of the first capacitor C1 storages discharges during the first 11 failure of power supply chip, when voltage is examined
When surveying the voltage of 13 input terminal of unit less than the detection voltage threshold set, voltage detection unit output low level signal is inverted
Device 14 exports high level signal to the Enable Pin of second source chip 12, and second source chip 12 works, in power supply transfer process
Power supply is continuous continual.
Ambient light sensor 16 and LED light, ambient light sensor 16 and control are further respectively had on telescope support 3
Device 15 connects, and controller 15 is connect by adjusting unit 18 with the input terminal of LED light.Ambient light sensor 16 detects in real time
The brightness of ambient enviroment is transferred to controller 15, and controller 15 is by the ambient brightness information received with setting maximum brightness value
Output brightness duty cycle signals are compared to the Enable Pin of DC-DC module U1, DC-DC module U1 is exported according to duty cycle signals
Adjustable voltage adjusts the brightness of LED light, this not only greatly strengthens the warning function of protective device, is also beneficial to LED light
To being illuminated at transmission line of electricity so that construction personnel can avoid encountering transmission line of electricity in the construction process.
Disclosed above is only the preferred embodiment of the present invention, but the present invention is not limited to this, any this field
What technical staff can think several improvement for not having creative variation and being made without departing from the principles of the present invention and
Retouching, should all be within the scope of the present invention.
Claims (10)
1. a kind of novel power transmission line insulation protection network, which is characterized in that including the first insulating support pillar（1）, second insulation
Stent strut（2）And telescope support（3）；
First insulating support pillar（1）With the second insulating support pillar（2）Size structure is identical；
First insulating support pillar（1）Including pedestal（1.3）, pedestal（1.3）Top offer accommodating chamber, in the accommodating chamber
Telescoping tube is installed, the telescoping tube includes the casing of no less than two, is mutually socketed between the casing of no less than two；It is located at
Connecting plate is welded on casing at the top of telescoping tube（1.6）；The connecting plate（1.6）It is equipped with the first mounting hole（1.1）；It is described
First mounting hole 1.1 is used to connect telescope support 3；
First insulating support pillar（1）With telescope support（3）One end connection, telescope support（3）The other end and second insulation
Stent strut connects.
A kind of 2. novel power transmission line insulation protection network as described in claim 1, it is characterised in that the casing of flexible bottom of the tube
Upper end pass through retaining ring（1.2）Strut is reinforced there are four being fixedly connected（1.4）；It is each to reinforce strut（1.4）First end passes through
Retaining ring（1.2）It is fixedly connected with casing, each reinforces strut（1.4）Second end be connected with support platelet（1.5）, Mei Gejia
Clamped bar（1.4）It is at an angle of with telescoping tube and sets and pass through support platelet（1.5）Support to ground.
3. a kind of novel power transmission line insulation protection network as claimed in claim 2, it is characterised in that telescope support includes flexible
Unit（3.3）, the first installation end（3.1）With the second installation end（3.2）；First installation end（3.1）Pass through telescopic unit（3.3）With
Second installation end（3.2）Connection；
First installation end（3.1）With the connecting plate on the first insulating support pillar（1.6）Connection；Second installation end（3.1）With
Connecting plate on two insulating support pillars（2.6）Connection.
4. a kind of novel power transmission line insulation protection network as claimed in claim 3, it is characterised in that
First installation（3.1）End includes the first fixed link（3.11）With the second fixed link（3.12）；
First fixed link（3.11）First end and the second fixed link（3.12）First end flexible connection；
Second installation end（3.2）Including third fixed link（3.21）With the 4th fixed link（3.22）；
Third fixed link（3.21）First end and the 4th fixed link（3.22）First end flexible connection；
Telescopic unit（3.3）Include the scissor unit of several flexible connections（3.31）, first scissor unit first end with
First fixed link（3.11）Second end flexible connection；
The second end of first scissor unit and the second fixed link（3.12）Second end flexible connection；
The third end of first scissor unit is flexibly connected with the first end of second scissor unit；
4th end of first scissor unit is flexibly connected with the second end of second scissor unit；
The third end of the last one scissor unit and third fixed link（3.21）Second end flexible connection；
4th end of the last one scissor unit and the 4th fixed link（3.22）Second end flexible connection.
5. a kind of novel power transmission line insulation protection network as claimed in claim 4, it is characterised in that
Cannula tip position is set there are two pin hole；The madial wall of casing is equipped with two guide grooves；There are two the outer wall of casing is set
Protrusion, raised position are adapted with the position of guide groove, and the pin hole between casing and casing is connected by axis pin.
6. a kind of novel power transmission line insulation protection network as described in claim 4 or 5, it is characterised in that also distinguish on protection network
Equipped with vibrating sensor, controller and alarm, and the vibrating sensor is connected to the controller, the controller
It is connected to the alarm.
A kind of 7. novel power transmission line insulation protection network as claimed in claim 6, it is characterised in that telescope support（3）Upper difference
Equipped with ambient light sensor（16）And LED light, and the ambient light sensor（16）With controller（15）Connection, controller
（15）By adjusting unit（18）It is connect with LED light.
8. a kind of novel power transmission line insulation protection network as claimed in claim 7, it is characterised in that
Adjust unit（18）Including DC-DC module（U1）, the DC-DC module（U1）Enable Pin（EN）It is connected to controller
（15）；
The DC-DC module（U1）Positive power source terminal（VIN+）It is connected with voltage conversion unit（20）Output terminal, DC-DC module
（U1）Signal output end pass through the first inductance（L1）It is connected to LED light negative terminal；
DC-DC module（U1）Signal output end also pass through the three or two pole（D3）Pipe is connected to voltage conversion unit（20）Output
End；
The voltage conversion unit（20）First resistor of the output terminal also by being connected in parallel（R1）, second resistance（R2）With
Three resistance（R3）It is connected to DC-DC module（U1）Electric current output setting end（SEN）, the anode and DC-DC module of the LED light
（U1）Electric current output setting end（SEN）Connection；
The both ends of LED light are parallel with third capacitance（C3）；
DC-DC module（U1）Power supply negative input end ground connection.
9. a kind of novel power transmission line insulation protection network as claimed in claim 8, it is characterised in that
Voltage conversion unit（20）Including power supply（19）, the first power supply chip（11）With second source chip（12）；
First power supply chip（11）Output terminal and voltage detection unit（13）Connection；
Voltage detection unit（13）And phase inverter（14）Connection；
Phase inverter（14）Output terminal and second source chip（12）Enable Pin connection；
First power supply chip（11）Output terminal be also associated with the first diode（D1）Anode；
Second source chip（12）Output terminal be connected with the second diode（D2）Anode；
First diode（D1）Cathode and the second diode（D2）Cathode connection after tie point be voltage conversion unit
（20）Output terminal；
Power supply（19）It is connected respectively to the first power supply chip（11）Input terminal and second source chip（12）Input terminal；
First power supply chip（11）Output terminal pass through the first capacitance（C1）Ground connection；
Second source chip（12）Output terminal also pass through the second capacitance（C2）Ground connection.
10. a kind of novel power transmission line insulation protection network as claimed in claim 3, it is characterised in that in the telescope support
Outer surface is covered with rubber layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810019448.6A CN108199295B (en) | 2018-01-09 | 2018-01-09 | Insulating protective net for power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810019448.6A CN108199295B (en) | 2018-01-09 | 2018-01-09 | Insulating protective net for power transmission line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108199295A true CN108199295A (en) | 2018-06-22 |
| CN108199295B CN108199295B (en) | 2022-04-15 |
Family
ID=62588910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810019448.6A Active CN108199295B (en) | 2018-01-09 | 2018-01-09 | Insulating protective net for power transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108199295B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59222008A (en) * | 1983-05-31 | 1984-12-13 | 株式会社フジクラ | Method of increasing aerial ground wire in trestle |
| CN203949940U (en) * | 2014-07-08 | 2014-11-19 | 国网山东齐河县供电公司 | Telescopic insulating support |
| CN204290128U (en) * | 2014-12-31 | 2015-04-22 | 国家电网公司 | Omnibearing stereo formula electric power safety cover bar |
| CN105634263A (en) * | 2016-04-12 | 2016-06-01 | 上海斐讯数据通信技术有限公司 | Protection circuit self-adaptive to input voltage |
| CN106329602A (en) * | 2015-07-07 | 2017-01-11 | 海洋王（东莞）照明科技有限公司 | Charging device |
| CN206110843U (en) * | 2016-09-30 | 2017-04-19 | 国网山西省电力公司运城供电公司 | Insulating rail of quick installation |
| CN107484310A (en) * | 2017-08-07 | 2017-12-15 | 万舒 | A kind of intelligent roadway lighting system |
-
2018
- 2018-01-09 CN CN201810019448.6A patent/CN108199295B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59222008A (en) * | 1983-05-31 | 1984-12-13 | 株式会社フジクラ | Method of increasing aerial ground wire in trestle |
| CN203949940U (en) * | 2014-07-08 | 2014-11-19 | 国网山东齐河县供电公司 | Telescopic insulating support |
| CN204290128U (en) * | 2014-12-31 | 2015-04-22 | 国家电网公司 | Omnibearing stereo formula electric power safety cover bar |
| CN106329602A (en) * | 2015-07-07 | 2017-01-11 | 海洋王（东莞）照明科技有限公司 | Charging device |
| CN105634263A (en) * | 2016-04-12 | 2016-06-01 | 上海斐讯数据通信技术有限公司 | Protection circuit self-adaptive to input voltage |
| CN206110843U (en) * | 2016-09-30 | 2017-04-19 | 国网山西省电力公司运城供电公司 | Insulating rail of quick installation |
| CN107484310A (en) * | 2017-08-07 | 2017-12-15 | 万舒 | A kind of intelligent roadway lighting system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108199295B (en) | 2022-04-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203661377U (en) | Dual-winding single-stage primary side feedback type LED lamp drive circuit | |
| CN106786643B (en) | Fault current active control type current limiting system and its control method | |
| CN104602390A (en) | Dual-winding single-stage primary feedback LED (Light Emitting Diode) lamp drive circuit | |
| CN201312125Y (en) | Composite power factor compensation harmonic elimination controller | |
| CN103887888A (en) | Fuse protector on-line monitoring system | |
| CN104065265B (en) | A kind of digital control photovoltaic module analogue means and control method thereof | |
| CN103762713A (en) | Outdoor centralized power supply system with charging function | |
| CN106658838A (en) | Lighting device, control chip, linear dimming system and linear dimming method | |
| CN203261029U (en) | Power grid grounding compensation device based on arc suppression transformer | |
| CN201904614U (en) | Current surge inhibition circuit for PFC circuit | |
| CN108199295A (en) | A kind of novel power transmission line insulation protection network | |
| CN103763816A (en) | Centralized power supply system for outdoor lighting system | |
| CN103280793B (en) | Based on the electrical network earthing compensation device of arc suppression transformer | |
| CN104345217A (en) | Detection method and device for capacitance value | |
| CN103346581A (en) | Dynamic voltage restorer with power factor correcting function | |
| CN206931988U (en) | High reliability under-voltage protecting circuit and power supply | |
| CN207557357U (en) | A kind of three-phase input power phase shortage detection circuit | |
| CN206712670U (en) | Energy taking device based on capacitive divider | |
| CN206211600U (en) | Charging indication and charging device | |
| CN210271221U (en) | Data acquisition device for microgrid controller | |
| CN106332373A (en) | Anti-flicker panel switch with single fire line | |
| CN104269898B (en) | Charging unit of super capacitor | |
| CN105953842A (en) | Secondary equipment for monitoring partial discharge and temperature monitoring device | |
| CN106160559A (en) | There is the pure sine wave inverter of high frequency chopping current sample input isolation features | |
| CN203798900U (en) | Power distribution cable grounding current online monitoring system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |