CN108390364A - A kind of overhead transmission line end overvoltage inhibiting apparatus - Google Patents
A kind of overhead transmission line end overvoltage inhibiting apparatus Download PDFInfo
- Publication number
- CN108390364A CN108390364A CN201810421132.XA CN201810421132A CN108390364A CN 108390364 A CN108390364 A CN 108390364A CN 201810421132 A CN201810421132 A CN 201810421132A CN 108390364 A CN108390364 A CN 108390364A
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- CN
- China
- Prior art keywords
- speed switch
- controller
- transmission line
- incoming cables
- overhead transmission
- 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.)
- Pending
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/042—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage comprising means to limit the absorbed power or indicate damaged over-voltage protection device
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- Emergency Protection Circuit Devices (AREA)
Abstract
The present invention relates to a kind of overhead transmission line end overvoltage inhibiting apparatus, including high-speed switch K, transformer T, the reactor L for limiting overhead transmission line end overvoltage and controller ZK；The end of incoming cables of the high-speed switch K is connected with device end of incoming cables AL1, and the leading-out terminal of high-speed switch K is connected with the end of incoming cables of reactor L, and the trigger signal end of high-speed switch K is connected with the ends output end b of controller ZK, the leading-out terminal ground connection of the reactor L；The end of incoming cables of the transformer T is connected with device end of incoming cables AL1, and the output end of transformer T is connected with the ends input terminal a of controller ZK；The controller ZK detects overhead line end overvoltage by transformer T, and on/off switch action command is sent out to high-speed switch K.The present invention has many advantages, such as simple in structure, safe and reliable, passes through the switching that high-speed switch K realizes reactor L, effectively solves the influence that overhead transmission line end overvoltage generates power grid and equipment operation.
Description
Technical field
The present invention relates to Overvoltage suppressing technical field, especially a kind of overhead transmission line end overvoltage inhibiting apparatus.
Background technology
Various insulation in electric system other than the effect by long-term work voltage, also suffer from various ratios in operation
The effect of the much higher overvoltage of operating voltage.So-called overvoltage refers to just occurring in electric system to the dangerous voltage that insulate
It increases and current potential increases.When the zero load of overhead transmission line end, since capacity effect makes line end voltage be higher than head end, and make line
Road first and end voltage is higher than electromotive force of source.The capacity effect when zero load of overhead transmission line end causes power-frequency voltage to increase, may
The equipment in extra high voltage network is caused to protect failure caused by high pressure scurries into electrical secondary system, the highly resistance of substation and its attached
Equipment damage, or even cause the major accident of power grid or equipment.
Overhead transmission line overvoltage is inhibited by direct shunt reactor at present, and this method has very big defect：①
In the loop, electric energy loss is bigger for the long-term parallel connection of reactor；2. when line voltage distribution is relatively low, further by voltage pull-down.
Invention content
The purpose of the present invention is to provide a kind of switchings for realizing reactor L by high-speed switch K, effectively solve overhead line
The overhead transmission line end overvoltage inhibiting apparatus for the influence that road end overvoltage generates power grid and equipment operation.
To achieve the above object, present invention employs following technical schemes：A kind of overhead transmission line end Overvoltage suppressing dress
It sets, includes the high-speed switch K of the switching for controlling reactor L, for overhead transmission line voltage signal to be passed to controller ZK
Transformer T, reactor L and controller ZK for limiting overhead transmission line end overvoltage；The end of incoming cables of the high-speed switch K
It is connected with device end of incoming cables AL1, the leading-out terminal of high-speed switch K is connected with the end of incoming cables of reactor L, the triggering letter of high-speed switch K
Number end is connected with the ends output end b of controller ZK, the leading-out terminal ground connection of the reactor L；The end of incoming cables of the transformer T and dress
It sets end of incoming cables AL1 to be connected, the output end of transformer T is connected with the ends input terminal a of controller ZK；The controller ZK passes through transformation
Device T detection overhead lines end overvoltage, on/off switch action command is sent out to high-speed switch K.
The high-speed switch K passes through controller ZK using vortex driving, the arc-suppressing switch of vacuum interrupter, high-speed switch K
Control the action of its on/off switch.
As shown from the above technical solution, beneficial effects of the present invention are：The present invention has simple in structure, safe and reliable etc. excellent
Point realizes the switching of reactor L by high-speed switch K, effectively solves overhead transmission line end overvoltage and is run to power grid and equipment
The influence of generation.
Description of the drawings
Fig. 1 is the electrical schematic diagram of the present invention.
Specific implementation mode
As shown in Figure 1, a kind of overhead transmission line end overvoltage inhibiting apparatus, includes the switching for controlling reactor L
High-speed switch K, the transformer T for overhead transmission line voltage signal to be passed to controller ZK, for limiting overhead transmission line end
The reactor L and controller ZK of overvoltage；The end of incoming cables of the high-speed switch K is connected with device end of incoming cables AL1, high-speed switch K
Leading-out terminal be connected with the end of incoming cables of reactor L, the trigger signal end of high-speed switch K is connected with the ends output end b of controller ZK,
The leading-out terminal of the reactor L is grounded；The end of incoming cables of the transformer T is connected with device end of incoming cables AL1, the output of transformer T
End is connected with the ends input terminal a of controller ZK；The controller ZK detects overhead line end overvoltage, Xiang Gao by transformer T
Speed switch K sends out on/off switch action command.The high-speed switch K is using vortex driving, the arc-suppressing switch of vacuum interrupter, high speed
Switch K controls the action of its on/off switch by controller ZK.
The controller ZK is ordered for when detecting overhead line end overvoltage, sending out to close a floodgate to high-speed switch K immediately, when
When overhead transmission line terminal voltage restores normal, separating brake order is sent out to high-speed switch K immediately.
Working principle of the present invention is as follows：
Controller ZK detects the voltage swing of overhead line end in real time, when detecting overhead line end overvoltage, immediately to opening at a high speed
It closes K and sends out combined floodgate order, when overhead transmission line terminal voltage restores normal, send out separating brake order to high-speed switch K immediately, effectively
Solve the influence that overhead transmission line end overvoltage generates power grid and equipment operation.
In conclusion the present invention has many advantages, such as simple in structure, safe and reliable, passes through high-speed switch K and realize reactor L's
Switching effectively solves the influence that overhead transmission line end overvoltage generates power grid and equipment operation.
Claims (2)
1. a kind of overhead transmission line end overvoltage inhibiting apparatus, it is characterised in that：It include the height of the switching for controlling reactor L
Fast switch K, the transformer T for overhead transmission line voltage signal to be passed to controller ZK, for limiting overhead transmission line end mistake
The reactor L and controller ZK of voltage；The end of incoming cables of the high-speed switch K is connected with device end of incoming cables AL1, high-speed switch K's
Leading-out terminal is connected with the end of incoming cables of reactor L, and the trigger signal end of high-speed switch K is connected with the ends output end b of controller ZK, institute
State the leading-out terminal ground connection of reactor L；The end of incoming cables of the transformer T is connected with device end of incoming cables AL1, the output end of transformer T
It is connected with the ends input terminal a of controller ZK；The controller ZK detects overhead line end overvoltage by transformer T, to high speed
Switch K sends out on/off switch action command.
2. overhead transmission line end according to claim 1 overvoltage inhibiting apparatus, it is characterised in that：The high-speed switch K
Using vortex driving, the arc-suppressing switch of vacuum interrupter, high-speed switch K controls its on/off switch by controller ZK and acts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810421132.XA CN108390364A (en) | 2018-05-04 | 2018-05-04 | A kind of overhead transmission line end overvoltage inhibiting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810421132.XA CN108390364A (en) | 2018-05-04 | 2018-05-04 | A kind of overhead transmission line end overvoltage inhibiting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108390364A true CN108390364A (en) | 2018-08-10 |
Family
ID=63070325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810421132.XA Pending CN108390364A (en) | 2018-05-04 | 2018-05-04 | A kind of overhead transmission line end overvoltage inhibiting apparatus |
Country Status (1)
| Country | Link |
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| CN (1) | CN108390364A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112290541A (en) * | 2020-10-15 | 2021-01-29 | 西安热工研究院有限公司 | Method for setting shunt reactor in black start process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201887444U (en) * | 2010-06-09 | 2011-06-29 | 范健夫 | Electric grounding comprehensive protector for TXHPT |
| CN106340885A (en) * | 2016-09-30 | 2017-01-18 | 株洲变流技术国家工程研究中心有限公司 | Terminal power grid voltage stabilization system and control method |
| JP2017085805A (en) * | 2015-10-29 | 2017-05-18 | 株式会社富士通ゼネラル | Air conditioner |
| CN107611950A (en) * | 2017-09-13 | 2018-01-19 | 安徽正广电电力技术有限公司 | Depth current-limiting apparatus is lost in one kind zero |
| CN208174264U (en) * | 2018-05-04 | 2018-11-30 | 安徽徽电科技股份有限公司 | A kind of overhead transmission line end overvoltage inhibiting apparatus |
-
2018
- 2018-05-04 CN CN201810421132.XA patent/CN108390364A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201887444U (en) * | 2010-06-09 | 2011-06-29 | 范健夫 | Electric grounding comprehensive protector for TXHPT |
| JP2017085805A (en) * | 2015-10-29 | 2017-05-18 | 株式会社富士通ゼネラル | Air conditioner |
| CN106340885A (en) * | 2016-09-30 | 2017-01-18 | 株洲变流技术国家工程研究中心有限公司 | Terminal power grid voltage stabilization system and control method |
| CN107611950A (en) * | 2017-09-13 | 2018-01-19 | 安徽正广电电力技术有限公司 | Depth current-limiting apparatus is lost in one kind zero |
| CN208174264U (en) * | 2018-05-04 | 2018-11-30 | 安徽徽电科技股份有限公司 | A kind of overhead transmission line end overvoltage inhibiting apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112290541A (en) * | 2020-10-15 | 2021-01-29 | 西安热工研究院有限公司 | Method for setting shunt reactor in black start process |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180810 |