CN212749049U - Device for acquiring electric energy along high-voltage transmission line - Google Patents
Device for acquiring electric energy along high-voltage transmission line Download PDFInfo
- Publication number
- CN212749049U CN212749049U CN202021587737.5U CN202021587737U CN212749049U CN 212749049 U CN212749049 U CN 212749049U CN 202021587737 U CN202021587737 U CN 202021587737U CN 212749049 U CN212749049 U CN 212749049U
- Authority
- CN
- China
- Prior art keywords
- voltage
- capacitor
- transmission line
- capacitors
- disc
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
The utility model discloses a device of high tension transmission line acquisition electric energy along line comprises parts such as capacitive voltage divider, regulator device, distribution transformer, voltage stabilizing circuit. The capacitive voltage divider reduces the voltage of the high-voltage transmission line to a distribution voltage level. The capacitive voltage divider is formed by connecting high-voltage capacitors in seriesAnd (4) obtaining. SF is used as insulating medium material of high-voltage capacitor6The gas and bipolar plates are made of aluminum foil. The high-voltage capacitors are connected in series, and a lead is led out after the high-voltage capacitors are connected in series and is connected to the discs distributed in a staggered mode through the conductor insulators. A hollow insulating tube is arranged in the middle of the disc, and a conductive contact parallel to the disc is arranged on the insulating tube. The capacitance between the wires and the voltage induced on the overhead ground wire are related to the geometry of the wire layout and the line voltage. The rural distribution transformer transforms the voltage on the voltage-dividing capacitor into low voltage entering a user; the voltage stabilizing circuit can keep the output voltage basically unchanged when the input power grid voltage fluctuates or the load changes.
Description
Technical Field
The utility model relates to a high tension transmission line acquires device of electric energy along line belongs to distribution substation technical field.
Background
At present, in remote rural areas in the world, due to the complex topography, remote geographical position and small user load of mountainous areas, part of areas are even in a non-electric state, and the development of local socioeconomic development and improvement of living standard are severely restricted. With the progress of poverty relief work, the development of remote areas with rare population is indispensable. Increased productivity often requires extension of the transmission line to remote locations to meet production needs.
In developed areas with dense population, a step-up transformer, a step-down transformer and a distribution transformer are often needed when electric energy enters a user home. Because of the large load and power consumption, it is very economical to use step-up and step-down transformers in these areas. However, it is not economical to use the method of passing the electric energy through the step-up transformer, the step-down transformer and the distribution transformer in remote areas where users are few. At present, the electric energy is obtained along the line by using overhead line insulated ground wires, parallelly erecting conducting wires along a power transmission line, current transformer electromagnetic induction and other modes, but the method has the problems that the device size is large, the ground wire induction voltage is high, the insulator is easy to discharge, the starting current of the current transformer is large, the output power is small and the like. Therefore, the device for obtaining electric energy along the high-voltage transmission line is developed economically and reliably, and has important practical significance for guaranteeing the stable development of remote areas.
Disclosure of Invention
The utility model provides a high tension transmission line acquires device of electric energy along the line, this experimental apparatus can be reliable, safe, effective, economic provide the electric energy to the user. The capacitive voltage divider directly reduces the voltage of the high-voltage transmission line to a distribution voltage level, and then the electric energy is transmitted to a user home through a voltage regulating device, a rural distribution transformer and a voltage stabilizer link. The voltage levels required by different industrial loads in remote areas are different, and the variable capacitor can meet the requirement and can supply the required voltage according to the requirement of users. Because the insulation of electric capacity receives the damage easily under the high-pressure condition, but this utility model well adoption partial pressure capacitor group device of easy dismouting to install digital voltmeter and insulating level monitoring instrument and adjustment handle on its upper edge.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a device for acquiring electric energy along a high-voltage transmission line is composed of a capacitive voltage divider, a voltage regulating device, a distribution transformer, a voltage stabilizing circuit and the like. Capacitive voltage dividers are devices that reduce the voltage of a high voltage transmission line to a distribution voltage level. The capacitor of the capacitive voltage divider is made of high-voltage capacitor, the polar plate is made of aluminum foil, and the insulating medium material is SF6A gas. A line is led out from each high-voltage capacitor series connection circuit and is connected to the discs distributed in a staggered manner by the conductor insulators; a hollow insulating tube is arranged in the middle of the disc, and a conductive contact parallel to the disc is arranged on the insulating tube. The capacitance between the wires and the voltage induced on the overhead ground wire are related to the geometry of the wire layout and the line voltage. The rural distribution transformer converts the voltage on the voltage-dividing capacitor into low voltage entering a user, and the supporting facilities of the rural distribution transformer comprise a fuse protector, a lightning arrester, a grounding device and the like. The voltage stabilizing circuit can keep the output voltage basically unchanged when the input power grid voltage fluctuates or the load changes. The voltage dividing capacitor is used for reducing the voltage of the high-voltage transmission line to a distribution voltage level. The capacitance between the wires and the voltage induced on the overhead ground wire are related to the geometry of the wire layout and the line voltage. Rural distribution transformers transform the voltage across the voltage divider capacitors to a low voltage that enters the customer. The matching device can effectively ensure the reliability and the safety of the device. The voltage stabilizing circuit can keep the output voltage basically unchanged when the input power grid voltage fluctuates or the load changes. Bringing good power quality to the user.
The device for acquiring electric energy along the high-voltage transmission line is characterized in that a capacitive voltage divider capacitor adopts a high-voltage capacitor, a polar plate is made of aluminum foil, and an insulating medium material is SF6The capacitive voltage divider and the high-voltage transmission line are directly connected by one line and formed by connecting a plurality of high-voltage capacitors in series, and the last capacitor is grounded.
And the high-voltage arm on the voltage-dividing capacitor device is connected with an insulation level detection instrument.
The device for acquiring electric energy along the high-voltage transmission line is characterized in that one side of a voltmeter on the capacitive voltage divider device is connected to the voltage regulating contact, and the other side of the voltmeter is directly grounded.
The device for acquiring electric energy along the high-voltage transmission line uses a distribution transformer which is usually used in rural areas, and the matched facilities of the device comprise a fuse protector, a lightning arrester, a grounding device and the like which are connected with a voltage division capacitor in parallel.
The device for acquiring electric energy along the high-voltage transmission line and the adjusting device formed by the disc, the hollow insulating tube and the contact are composed of insulating materials and conducting wires with strong insulating capability and light weight, and can safely, reliably and conveniently adjust voltage. The contacts are wired to the primary side of the distribution transformer.
In the device for acquiring electric energy along the high-voltage transmission line, the voltage stabilizing circuit can still keep the output voltage basically unchanged when the voltage of an input power grid fluctuates or the load changes.
The utility model has the advantages that: the device can directly obtain electric energy from a high-voltage line, and has the advantages of simplicity, economy, convenience, reliability and the like; through the voltage regulating device, a user can regulate voltage for different requirements, and the voltage stabilizing circuit can effectively avoid various accidents such as equipment damage caused by voltage fluctuation and the like, so that high-quality electric energy is brought to the user.
Drawings
Fig. 1 is an overall structure diagram of a device for obtaining electric energy along a high-voltage transmission line.
Fig. 2 is a schematic view of an adjustment device, in which: 1-handle, 2-hollow insulating tube, 3-disc, 4-contact, 5-wire, 6-conductor, 7-insulator.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
A device for obtaining electric energy along a high-voltage transmission line is used for reliably and economically supplying power to household loads and industrial loads in remote areas,the device mainly comprises a capacitive voltage divider, a voltage regulating device, a distribution transformer, a voltage stabilizing circuit, a voltmeter, an insulation level monitoring instrument and the like, as shown in figure 1. The capacitive voltage divider is a device for reducing the voltage of a high-voltage transmission line to a distribution voltage level, and capacitors of the capacitive voltage divider are formed by connecting high-voltage capacitors in series. The polar plate is made of aluminum foil, and the insulating medium material is SF6Gas, as shown in fig. 2. The pressure regulating device consists of a handle (1), a hollow insulating tube (2), a disc (3), a contact (4) and a lead (5). Disc (3), hollow insulating tube (2) are by insulating material that insulating ability is strong and light in weight, the convenient regulation voltage of ability safe and reliable. The conductors (6) and the insulators (7) on the disc (3) are distributed in a staggered mode. The contact (4) is connected with the primary side of the distribution transformer through a lead (5) and a hollow insulating tube (2). Handle (1) on hollow insulating tube (2) is rotated during the pressure regulating to thereby drive the contact and rotate the quantity that changes the condenser parallelly connected with distribution transformer on disc (3) and realize the pressure regulating. The voltmeter is connected with the primary side of the distribution transformer in parallel, so that the voltage can be monitored in real time, and reliable data can be provided for regulating the voltage. The distribution transformer used in rural areas transforms the voltage on the low-voltage arm of the capacitive voltage divider into the low voltage entering the user, and the matched facilities of the distribution transformer comprise a fuse protector, a lightning arrester, a grounding device and the like. Two telegraph poles are erected to install a distribution transformer and supporting facilities thereof as used in the farmland village. The voltage stabilizing circuit can keep the output voltage basically unchanged when the input power grid voltage fluctuates or the load changes.
The capacitive voltage divider is a device for reducing the voltage of a high-voltage transmission line to a distribution voltage level, and capacitors of a voltage dividing capacitor are connected in series by using high-voltage capacitors. The polar plate is made of aluminum foil, and the insulating medium material is SF6Gas with strong high pressure resistance. And an insulating shell is arranged outside the capacitor, so that the safety of the capacitor is guaranteed. A wire is led out from the serial line of each capacitor and is connected with the conductor part on the disk of the voltage regulating device, thereby creating conditions for voltage regulation. The capacitive voltage divider is selected in relation to the capacitance between the conductors and the voltage induced on the overhead ground line, in relation to the geometry of the conductor layout and the line voltage. The device itself has an impedance when a voltage dividing capacitor is used, and the impedance of the voltage dividing capacitor is to be offsetAn inductive device is used. The value of the inductance is determined by the following.
The primary side of the distribution transformer used in rural areas is connected with the contact, and the other side is directly grounded. A distribution transformer is used in rural areas to convert the voltage on a voltage division capacitor into low voltage entering a user, and supporting facilities of the distribution transformer comprise a fuse protector, a lightning arrester, a grounding device and the like. Two telegraph poles are erected to install a distribution transformer and supporting facilities thereof as used in the farmland village.
The voltage stabilizing circuit can keep the output voltage basically unchanged when the input power grid voltage fluctuates or the load changes. The voltage dividing capacitor is used for reducing the voltage of the high-voltage transmission line to a distribution voltage level.
In summary, the device for obtaining electric energy along the high-voltage transmission line enters the home of the user through the voltage dividing capacitor, the voltage regulating device, the distribution transformer, the voltage stabilizing circuit and the like. And the voltage dividing capacitor is used for reducing the voltage of the high-voltage transmission line to a distribution voltage level. And the tap and the capacitance capacity are changed by the voltage regulating device to achieve the purpose of voltage regulation. The distribution transformer transforms the voltage across the voltage-dividing capacitor to a low voltage that is brought into the user. The voltage stabilizing circuit can still maintain output voltage when the input power grid voltage fluctuates or the load changes, and provides high-quality electric energy for users.
Claims (6)
1. A device for acquiring electric energy along a high-voltage transmission line is characterized by comprising a capacitive voltage divider, a voltage regulating device, a distribution transformer, a voltage stabilizing circuit and the like; the capacitive voltage divider reduces the voltage of the high-voltage transmission line to a distribution voltage level; the capacitive voltage divider is formed by connecting high-voltage capacitors in series; SF is used as insulating medium material of high-voltage capacitor6Gas, the two polar plates are made of aluminum foil; each high-voltage capacitor is connected in series, and a lead is led out after the high-voltage capacitors are connected in series and is connected to discs distributed in a staggered mode through conductor insulators; a hollow insulating tube is arranged in the middle of the disc, and a conductive contact parallel to the disc is arranged on the insulating tube; the capacitance between the wires and the induced voltage on the overhead ground wire are related to the geometry of the wire arrangement and the line voltage; the distribution transformer transforms the voltage on the voltage-dividing capacitor into a low voltage entering a user; stableThe voltage circuit can keep the output voltage basically unchanged when the input power grid voltage fluctuates or the load changes.
2. The device of claim 1, wherein the voltage dividing capacitor is made of series-connected low-loss and light-weight high-voltage capacitors, the capacitor plates are made of aluminum foil, and the insulating dielectric material between the capacitors is SF6。
3. The apparatus of claim 1, wherein the voltage regulator is formed by a disc, a hollow insulating tube, a contact and a wire, and the disc and the hollow insulating tube are made of insulating materials with strong insulating ability and light weight.
4. The apparatus of claim 1, wherein the voltmeter is capable of measuring the voltage along the line in real time.
5. The apparatus of claim 1 wherein the insulation monitoring instrument monitors the insulation level of the capacitor in real time and signals if the insulation level does not meet the predetermined value.
6. The apparatus of claim 1, wherein the regulator circuit is a 220V ac regulator circuit that maintains the output voltage substantially constant during input grid voltage fluctuations or load changes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021587737.5U CN212749049U (en) | 2020-08-04 | 2020-08-04 | Device for acquiring electric energy along high-voltage transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021587737.5U CN212749049U (en) | 2020-08-04 | 2020-08-04 | Device for acquiring electric energy along high-voltage transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212749049U true CN212749049U (en) | 2021-03-19 |
Family
ID=74986279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021587737.5U Expired - Fee Related CN212749049U (en) | 2020-08-04 | 2020-08-04 | Device for acquiring electric energy along high-voltage transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212749049U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113281552A (en) * | 2021-04-13 | 2021-08-20 | 上海电机学院 | Zero-contact cable voltage measurement method |
-
2020
- 2020-08-04 CN CN202021587737.5U patent/CN212749049U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113281552A (en) * | 2021-04-13 | 2021-08-20 | 上海电机学院 | Zero-contact cable voltage measurement method |
| CN113281552B (en) * | 2021-04-13 | 2023-02-10 | 上海电机学院 | Zero-contact cable voltage measurement method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104035013A (en) | 500 KV electromagnetic voltage transformer alternating-current frequency-doubling withstand voltage test circuit and method | |
| CN105990855A (en) | High-voltage capacitor voltage reducing and electricity taking device and electricity taking method | |
| CN203261028U (en) | Arc suppression coil device based on active inverter | |
| CN103558536A (en) | Circuit for testing overload tolerance capacity of series capacitor and working method of circuit | |
| CN2672667Y (en) | Variable frequency type series resonance work frequency anti-pressure test device | |
| CN105375454A (en) | Short circuit fault current limiter | |
| CN101644751A (en) | Method for raising distributed type large current of GIS bushing type current transformer | |
| CN212749049U (en) | Device for acquiring electric energy along high-voltage transmission line | |
| CN110620433A (en) | Long-term voltage test system for changing alternating current cable into direct current operation | |
| CN106856373B (en) | Harmonic generation device | |
| CN202057764U (en) | Variable frequency resonance voltage withstand test device | |
| CN202405792U (en) | Mining high-voltage dynamic filter energy saving device | |
| CN204424930U (en) | A kind of high-voltage capacitance step-down electricity getting device | |
| CN114566974B (en) | Movable reactive power compensation device | |
| CN207067319U (en) | A kind of industrial frequency withstand voltage experimental rig | |
| CN208224331U (en) | A kind of wideband resonance potential generator | |
| CN210404741U (en) | Power transmission system | |
| CN209046369U (en) | A kind of electric energy collection device | |
| CN210242857U (en) | Passive temperature and humidity monitoring device applied to tubular bus | |
| CN106353660A (en) | Series resonance device | |
| CN102545223A (en) | High-voltage dynamic filtering power-saving device for mine | |
| CN102820663A (en) | Dynamic reactive power compensation and harmonic treatment complete equipment | |
| CN203502551U (en) | Circuit capable of testing overloading tolerance capability of capacitors connected in series | |
| CN111983397A (en) | Insulating medium breakdown experiment device and method | |
| CN220382948U (en) | Secondary fusion pole based on electricity taking function integrated design |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210319 Termination date: 20210804 |