CN211320925U - Novel 10kV automatic tracking compensation arc extinction integrated equipment - Google Patents
Novel 10kV automatic tracking compensation arc extinction integrated equipment Download PDFInfo
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- CN211320925U CN211320925U CN202020243251.3U CN202020243251U CN211320925U CN 211320925 U CN211320925 U CN 211320925U CN 202020243251 U CN202020243251 U CN 202020243251U CN 211320925 U CN211320925 U CN 211320925U
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Abstract
The utility model discloses a novel 10kV automatic tracking compensation arc extinction complete device, which comprises a grounding transformer, an arc extinction coil, an automatic control device, a voltage transformer and a lightning arrester; the first output end of the grounding transformer is connected with the arc suppression coil through a copper core cable, and the second output end of the grounding transformer is grounded through the primary side of the voltage transformer; the neutral end point of the grounding transformer is connected with a wave winding non-inductive resistor, and the other input ends are respectively connected with secondary windings corresponding to the automatic control device; the arc suppression coil is electrically connected with the automatic control device through the copper busbar, the X end of the arc suppression coil is grounded through the voltage transformer, and the lightning arrester is electrically connected with the arc suppression coil. Through this utility model's design, effectively improved the traceability and the circuit fault resolution of 10kv automatic tracking compensation arc extinction integrated equipment to the power equipment fault point, it is fast to realize the automatic compensation arc extinction, reduces power system equipment fault rate, increases the security.
Description
Technical Field
The utility model belongs to the technical field of electric power and specifically relates to a novel 10kV automatic tracking compensation arc extinction integrated equipment is related to.
Background
With the development of the power industry, the nonlinear loads (frequency conversion regulating and transporting device, motor soft starting device, magnetic saturation voltage stabilizing device, large rectifying device, communication equipment, medical equipment, electric welding unit, large supermarket lamp lighting and the like) in the power supply system are increasing day by day, the frequency table causes the voltage waveform change frequency to generate higher harmonics when the equipment operates, the power factor of the power grid is reduced, the ripple coefficient frequency is increased to cause great damage to the power grid, particularly, a capacitor in a reactive compensation circuit can amplify the higher harmonics, inrush current is generated at the switching-on moment, the circuit is overloaded seriously, the capacitor is broken down, the short circuit is caused to endanger the personal safety of the equipment operation, and even the equipment is exploded to cause fire. At present, the urban and rural construction and development speed of China is high, although the technical levels of urban and rural distribution lines and distribution equipment are greatly improved, the overall fault rate of the distribution network is also reduced; however, the economic development drives the increase of the number of users, which leads to the spread of power failure accidents caused by the faults of the user lines or the internal faults of the user lines, and the proportion of the power failure accidents in the power distribution network is continuously increased. Therefore, in places such as large power plants, high voltage power grids, residential power grids, and the like, there is an urgent need for power equipment with high safety performance and low failure rate. Therefore, it is necessary to design a 10kv automatic tracking compensation arc extinction complete device which has small floor area and fast grounding action, can eliminate the current flowing through a grounding fault point while compensating the capacitance current, so as to reduce the fault rate of the power system equipment and increase the safety.
The above background disclosure is only provided to aid in understanding the concepts and technical solutions of the present invention, and it does not necessarily belong to the prior art of the present patent application, and it should not be used to assess the novelty and inventive step of the present application without explicit evidence that the above content has been disclosed at the filing date of the present patent application.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the compensation precision and the low scheduling problem of speed that present automatic tracking compensation arc extinction complete sets occupation space is big, ground connection action delay, compensating current, provide a novel 10kv automatic tracking compensation arc extinction integrated equipment.
In order to realize the purpose, the utility model adopts the following technical scheme:
a novel 10kv automatic tracking compensation arc extinction complete device comprises a grounding transformer, an arc extinction coil, an automatic control device, a voltage transformer and a lightning arrester; the first output end of the grounding transformer is connected with the arc suppression coil through a copper core cable, and the second output end of the grounding transformer is grounded through the primary side of the voltage transformer; the neutral end point of the grounding transformer is connected with a wave winding non-inductive resistor, and the other input ends are respectively connected with secondary windings corresponding to the automatic control device; the arc suppression coil is electrically connected with the automatic control device through the copper busbar, the X end of the arc suppression coil is grounded through the voltage transformer, and the lightning arrester is electrically connected with the arc suppression coil.
Furthermore, the automatic control device comprises a central processing module, an analog quantity acquisition module, a capacitance energy storage module, a constant value setting module and a power supply module; the analog quantity acquisition module, the capacitance energy storage module, the constant value setting module and the power supply module are all connected with the central processing module; one end of the central processing module and one end of the analog quantity acquisition module are connected with the grounding transformer, the fixed value setting module is connected with the arc suppression coil, and the capacitance energy storage module is connected with the voltage transformer.
Furthermore, a primary winding of the automatic control device is connected with a 380V power supply, and insulating layers are filled between the primary winding and the outgoing line as well as between the secondary winding and the outgoing line.
Furthermore, a wave-wound non-inductive resistor is connected to a neutral point of the grounding transformer, and when a single-phase grounding fault occurs in the power grid, the wave-wound non-inductive resistor can be reliably shorted within a time of less than 60 ms.
Further, the arrester adopts metal oxide arrester MOV.
The utility model has the advantages of compared with the prior art:
(1) through the position of each module of reasonable setting automatic control device, be connected automatic controller device with other components of constituteing 10kv automatic tracking compensation arc extinction integrated equipment again to improve the traceability and the circuit fault resolution of 10kv automatic tracking compensation arc extinction integrated equipment to the power equipment fault point, realize that the automatic compensation arc extinction is fast, reduce power system equipment fault rate, increase the security.
(2) The arc suppression coil is electrically connected with the control device through the copper busbar, the X end of the arc suppression coil is grounded through the voltage transformer, and the lightning arrester is electrically connected with the arc suppression coil, so that the safety of the complete device is guaranteed.
(3) The wave-wound non-inductive resistor can be reliably short-circuited in less than 60ms, so that the requirements of high grounding action, high compensation precision and high speed of compensation current of the dynamic tracking compensation arc extinction complete equipment realized by 10kv are met.
Drawings
FIG. 1 is a schematic structural diagram of a novel 10kv automatic tracking compensation arc extinction complete device.
Reference numerals: 1. a novel 10kv automatic tracking compensation arc extinction complete device; 2. an automatic control device.
Detailed Description
In the following, an embodiment of the present invention will be described in detail with reference to the drawings, but it should be understood that the scope of the present invention is not limited by the embodiment. It should be understood that the directions "up", "down", "left" and "right" in the following embodiments of the present invention are all based on the position of the corresponding drawing. These directional terms are used for convenience of description only and do not represent limitations on the particular embodiments of the present invention. Unless otherwise specified, like reference numerals in the reference numerals refer to like structures.
As shown in fig. 1: a novel 10kv automatic tracking compensation arc extinction complete device 1 comprises a grounding transformer, an arc extinction coil, an automatic control device 2, a voltage transformer and a lightning arrester; the first output end of the grounding transformer is connected with the arc suppression coil through a copper core cable, and the second output end of the grounding transformer is grounded through the primary side of the voltage transformer; the neutral end point of the grounding transformer is connected with a wave winding non-inductive resistor, and the other input ends are respectively connected with secondary windings corresponding to the automatic control device 2; the arc suppression coil is connected with automatic control device 2 electricity through female arranging of copper, and the X end of arc suppression coil is ground connection behind voltage transformer, and the arrester is connected with the arc suppression coil electricity, the arrester adopts metal oxide arrester MOV. The automatic controller device 2 is connected with other components forming the 10kv automatic tracking compensation arc extinction complete device 1, so that the tracking capacity and the circuit fault resolution of the 10kv automatic tracking compensation arc extinction complete device 1 on the fault point of the power equipment are improved, the automatic compensation arc extinction speed is high, the fault rate of the power system equipment is reduced, and the safety is improved. Meanwhile, the arc suppression coil is electrically connected with the automatic control device 2 through the copper busbar, the X end of the arc suppression coil is grounded through the voltage transformer, and the lightning arrester is electrically connected with the arc suppression coil, so that the safety of the complete device is also ensured. The neutral point of the grounding transformer is connected with a wave winding non-inductive resistor, and after a single-phase grounding fault occurs in a power grid, the wave winding non-inductive resistor can be reliably short-circuited in less than 60ms, so that the requirements of high grounding action, high compensation precision and high compensation speed of the compensation current of the dynamic tracking compensation arc extinction complete device 1 realized by 10kv are met. When the input voltage is not more than 1.2 times of the rated alternating current input voltage, the measurement error of the voltage is less than or equal to +/-2.0 percent; when the input current is not more than 1.2 times of the rated alternating current input current, the measurement error of the current is less than or equal to +/-2.0 percent.
As shown in fig. 1, as a further optimization of the present technical solution, the automatic control device 2 includes a central processing module, an analog quantity acquisition module, a capacitive energy storage module, a constant value setting module, and a power supply module; the analog quantity acquisition module, the capacitance energy storage module, the constant value setting module and the power supply module are all connected with the central processing module; one end of the central processing module and one end of the analog quantity acquisition module are connected with the grounding transformer, the fixed value setting module is connected with the arc suppression coil, and the capacitance energy storage module is connected with the voltage transformer. Meanwhile, a primary winding of the automatic control device 2 is connected with a 380V power supply, and insulating layers are filled between the primary winding and an outgoing line as well as between the secondary winding and the outgoing line. The automatic control device 2 collects the voltage of the neutral point of the power grid, calculates the voltage output by the grounding transformer according to the voltage, and then sends corresponding action signals to control the voltage actually output by the voltage transformer, so that the compensation current injected into the power grid by the 10kv automatic tracking compensation arc extinction complete device 1 is controlled, and the aim of arc extinction is fulfilled. Because the neutral end point of the grounding transformer is connected with the wave winding non-inductive resistor, and the compensating current is controlled by adjusting the output voltage of the grounding transformer through the automatic control device 2, compared with the traditional technical means, the method has the characteristics of high compensating speed and high compensating precision; and because the use of a large-capacity reactor and a large-capacity capacitor is avoided, the running loss of the 10kv automatic tracking compensation arc extinction complete device 1 is effectively reduced.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.
Claims (5)
1. The utility model provides a novel 10kV automatic tracking compensation arc extinction integrated equipment which characterized in that: the device comprises a grounding transformer, an arc suppression coil, an automatic control device, a voltage transformer and a lightning arrester; the first output end of the grounding transformer is connected with the arc suppression coil through a copper core cable, and the second output end of the grounding transformer is grounded through the primary side of the voltage transformer; the neutral end point of the grounding transformer is connected with a wave winding non-inductive resistor, and the other input ends are respectively connected with secondary windings corresponding to the automatic control device; the arc suppression coil is electrically connected with the automatic control device through the copper busbar, the X end of the arc suppression coil is grounded through the voltage transformer, and the lightning arrester is electrically connected with the arc suppression coil.
2. The new 10kV automatic tracking compensation arc extinction complete equipment set as claimed in claim 1, characterized in that: the automatic control device comprises a central processing module, an analog quantity acquisition module, a capacitance energy storage module, a fixed value setting module and a power supply module; the analog quantity acquisition module, the capacitance energy storage module, the constant value setting module and the power supply module are all connected with the central processing module; one end of the central processing module and one end of the analog quantity acquisition module are connected with the grounding transformer, the fixed value setting module is connected with the arc suppression coil, and the capacitance energy storage module is connected with the voltage transformer.
3. The new 10kV automatic tracking compensation arc extinction complete equipment set as claimed in claim 2, characterized in that: the primary winding of the automatic control device is connected with a 380V power supply, and insulating layers are filled between the primary winding and an outgoing line and between the secondary winding and the outgoing line.
4. The new 10kV automatic tracking compensation arc extinction complete equipment set as claimed in claim 1, characterized in that: the neutral point of the grounding transformer is connected with a wave winding non-inductive resistor, and when a single-phase grounding fault occurs in a power grid, the wave winding non-inductive resistor can be reliably short-circuited in less than 60 ms.
5. The new 10kV automatic tracking compensation arc extinction complete equipment set as claimed in claim 1, characterized in that: the arrester adopts a metal oxide arrester MOV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020243251.3U CN211320925U (en) | 2020-03-03 | 2020-03-03 | Novel 10kV automatic tracking compensation arc extinction integrated equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020243251.3U CN211320925U (en) | 2020-03-03 | 2020-03-03 | Novel 10kV automatic tracking compensation arc extinction integrated equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211320925U true CN211320925U (en) | 2020-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020243251.3U Expired - Fee Related CN211320925U (en) | 2020-03-03 | 2020-03-03 | Novel 10kV automatic tracking compensation arc extinction integrated equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211320925U (en) |
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2020
- 2020-03-03 CN CN202020243251.3U patent/CN211320925U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200821 |
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| CF01 | Termination of patent right due to non-payment of annual fee |