CN210224874U - Series compensation device based on spark GAP GAP rapid switch-on - Google Patents
Series compensation device based on spark GAP GAP rapid switch-on Download PDFInfo
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- CN210224874U CN210224874U CN201921040497.4U CN201921040497U CN210224874U CN 210224874 U CN210224874 U CN 210224874U CN 201921040497 U CN201921040497 U CN 201921040497U CN 210224874 U CN210224874 U CN 210224874U
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Abstract
The utility model relates to a series compensation arrangement based on spark GAP GAP closes floodgate fast, the device include zinc oxide nonlinear resistor MOV, condenser C, spark GAP GAP, discharge damper RL and fast switch K0. The zinc oxide nonlinear resistor MOV and the fast switch K0 are both connected in parallel across the capacitor C. The wire inlet end of the spark GAP GAP is connected with the wire inlet end of the capacitor C, and the wire outlet end of the spark GAP GAP is connected with the wire inlet end of the discharge damper RL. And the outlet end of the discharge damper RL is connected with the outlet end of the capacitor C. And the wire inlet end of the capacitor C is used as the wire inlet end of the device, and the wire outlet end is used as the wire outlet end of the device. The utility model has the advantages of safe and reliable, simple structure can improve the voltage quality of circuit, increases power transmission distance and increase transport capacity, improves electric wire netting system's stability and the comprehensive utilization ratio of electric energy.
Description
Technical Field
The utility model belongs to the technical field of the electric wire netting compensation technique and specifically relates to a series compensation device based on spark GAP GAP closes floodgate fast.
Background
With the development of economy and the rapid increase of electric load, the voltage quality problem brought by medium-high voltage long-distance transmission lines is gradually exposed. For areas with low population density, the power supply radius is large, and the power transmission line is generally long. Under the condition of light early load, the receiving end voltage can still meet the use requirement, but with social progress and economic development, heavy load users are continuously increased, the voltage drop of load current on a line is obviously increased, and the quality of the power supply voltage of the load is seriously exceeded. The voltage at the tail end of some lines at the peak of load is only 80% of the rated voltage, so that the adjacent industrial and residential electric equipment cannot normally operate, and the production and life of people in the region are directly influenced.
At present, a series compensation device in the market controls the switching of a capacitor through an electronic switch or a mechanical switch, and when the electronic switch or the mechanical switch breaks down, the capacitor is easily damaged due to overvoltage or overcurrent.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a series compensation arrangement based on spark GAP GAP closes floodgate fast, the device can drop into the condenser automatically according to the size of circuit transport load, effectively improves the voltage quality of circuit, increases power transmission distance and increase transport capacity, improves the stability of system and the comprehensive utilization ratio of electric energy.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a series compensation device based on rapid closing of a spark GAP GAP comprises a zinc oxide nonlinear resistor MOV, a capacitor C, the spark GAP GAP, a discharge damper RL and a rapid switch K0. The zinc oxide nonlinear resistor MOV and the fast switch K0 are both connected in parallel across the capacitor C. The wire inlet end of the spark GAP GAP is connected with the wire inlet end of the capacitor C, and the wire outlet end of the spark GAP GAP is connected with the wire inlet end of the discharge damper RL. And the outlet end of the discharge damper RL is connected with the outlet end of the capacitor C. And the wire inlet end of the capacitor C is used as the wire inlet end of the device, and the wire outlet end is used as the wire outlet end of the device.
Specifically, the capacitor C is used for offsetting reactance in the power transmission line, reducing voltage drop on the power transmission line, improving voltage quality of the line, increasing power transmission distance and transmission capacity, and improving stability of a power grid system. The zinc oxide nonlinear resistor MOV is used for limiting the terminal voltage of the capacitor C and preventing the capacitor C from being damaged due to overvoltage. And the spark GAP GAP is used for quickly short-circuiting the exit capacitor C when the power grid fails. And the discharge damper RL is used for limiting the intensity of discharge current when the capacitor C is in short circuit. And the quick switch K0 is used for short-circuiting the exit capacitor C for a long time when the power grid fails.
Further, the discharge damper comprises a resistor R and an inductor L which are connected in parallel.
According to the above technical scheme, the utility model has the advantages of safe and reliable, simple structure, can improve the voltage quality of circuit, increase power transmission distance and increase transport capacity, improve electric wire netting system's stability and the comprehensive utilization ratio of electric energy.
Drawings
Fig. 1 is an electrical schematic diagram of the present invention.
Detailed Description
Fig. 1 shows a series compensation device based on rapid closing of a spark GAP, which includes a zinc oxide nonlinear resistor MOV, a capacitor C, a spark GAP, a discharge damper RL and a rapid switch K0. The zinc oxide nonlinear resistor MOV and the fast switch K0 are both connected in parallel across the capacitor C. The wire inlet end of the spark GAP GAP is connected with the wire inlet end of the capacitor C, and the wire outlet end of the spark GAP GAP is connected with the wire inlet end of the discharge damper RL. And the outlet end of the discharge damper RL is connected with the outlet end of the capacitor C. And the wire inlet end of the capacitor C is used as the wire inlet end of the device, and the wire outlet end is used as the wire outlet end of the device.
Specifically, the capacitor C is used for offsetting reactance in the power transmission line, reducing voltage drop on the power transmission line, improving voltage quality of the line, increasing power transmission distance and transmission capacity, and improving stability of a power grid system. The zinc oxide nonlinear resistor MOV is used for limiting the terminal voltage of the capacitor C and preventing the capacitor C from being damaged due to overvoltage. And the spark GAP GAP is used for quickly short-circuiting the exit capacitor C when the power grid fails. And the discharge damper RL is used for limiting the intensity of discharge current when the capacitor C is in short circuit. And the quick switch K0 is used for short-circuiting the exit capacitor C for a long time when the power grid fails.
Further, the discharge damper comprises a resistor R and an inductor L which are connected in parallel.
The utility model discloses a theory of operation does:
when the line normally runs, the capacitor C is automatically put into operation according to the size of the line transmission load. When the power grid fails, the spark GAP GAP and the quick switch K0 are driven to respectively perform switching-on operation, the spark GAP GAP can be conducted at the us level, and the capacitor C is rapidly withdrawn in a short circuit mode. Meanwhile, the discharge damper RL limits the intensity of discharge current when the capacitor C is in short circuit; the fast switch K0 is used to continue to short the capacitor C after the spark GAP is opened. And when the line current reaches a set value after the power grid fault is removed, the fast switch K0 carries out switching-off operation again to enable the capacitor C to be put into line operation.
The above-mentioned embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.
Claims (2)
1. The utility model provides a series compensation arrangement based on spark GAP GAP rapid switch-on which characterized in that: the device comprises a zinc oxide nonlinear resistor MOV, a capacitor C, a spark GAP GAP, a discharge damper RL and a quick switch K0; the zinc oxide nonlinear resistor MOV and the fast switch K0 are connected in parallel at two ends of a capacitor C; the wire inlet end of the spark GAP GAP is connected with the wire inlet end of the capacitor C, and the wire outlet end of the spark GAP GAP is connected with the wire inlet end of the discharge damper RL; the outlet end of the discharge damper RL is connected with the outlet end of the capacitor C; and the wire inlet end of the capacitor C is used as the wire inlet end of the device, and the wire outlet end is used as the wire outlet end of the device.
2. The series compensation device based on the rapid switching on of the spark GAP (GAP) as claimed in claim 1, wherein: the discharge damper comprises a resistor R and an inductor L which are connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921040497.4U CN210224874U (en) | 2019-07-04 | 2019-07-04 | Series compensation device based on spark GAP GAP rapid switch-on |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921040497.4U CN210224874U (en) | 2019-07-04 | 2019-07-04 | Series compensation device based on spark GAP GAP rapid switch-on |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210224874U true CN210224874U (en) | 2020-03-31 |
Family
ID=69936104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921040497.4U Expired - Fee Related CN210224874U (en) | 2019-07-04 | 2019-07-04 | Series compensation device based on spark GAP GAP rapid switch-on |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210224874U (en) |
-
2019
- 2019-07-04 CN CN201921040497.4U patent/CN210224874U/en not_active Expired - Fee Related
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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: 20200331 Termination date: 20210704 |