CN206340977U - A kind of protection system of the series compensation equipment set based on spark gap - Google Patents
A kind of protection system of the series compensation equipment set based on spark gap Download PDFInfo
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- CN206340977U CN206340977U CN201621423961.4U CN201621423961U CN206340977U CN 206340977 U CN206340977 U CN 206340977U CN 201621423961 U CN201621423961 U CN 201621423961U CN 206340977 U CN206340977 U CN 206340977U
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- spark gap
- series
- protection system
- compensation equipment
- set based
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Abstract
The utility model proposes a kind of protection system of the series compensation equipment set based on spark gap; spark gap and by-pass switch are connect in series transformer winding terminal span; after failure generation, before by-pass switch combined floodgate; when overvoltage occurs in series compensation equipment; spark gap reaches setting voltage operation; series transformer winding is bypassed, overvoltage protection is carried out to equipment.The spark gap and by-pass switch of the protection system are cooperated, and protection is coordinated to equipment overvoltage, are prevented that overvoltage stress from continuing to develop, are improved the overall reliability of equipment.
Description
Technical field
The utility model belongs to electric and electronic technical field in power system, and in particular to one kind is set based on spark gap
Series compensation equipment protection system.
Background technology
STATCOM uses voltage source converter, main electric power electronic component therein, electric capacity relative to
The equipment such as transformer, reactor, circuit are to overvoltage quite sensitive.
For the engineering of actual motion, overvoltage is the significant threat of converter valve, the device of valve group, capacitance overvoltage ability
It is limited.The overvoltage of Microsecond grade this may result in the damage of device.For power electronic devices, control circuit or internal fault
It may all cause equipment to be in charged state, capacitance voltage constantly rises, ultimately cause the blast of device overvoltage.To protect other
Partly, blast is prevented, the influence to whole valve group and system is reduced, it is necessary in time failure removal.Mechanical bypass switch it is dynamic
The regular hour is needed, charging current may cause voltage further to raise within this time, it is therefore desirable to equipment in addition
Quickly cut off failure.
The alternating current-direct current power network overvoltage that time is extremely short, amplitude is high, such as switching overvoltage, lightning surge typically can not be only
Protected by protection system, it is necessary to by rational pressure-resistant design, such as configure spark gap and prevented.But spark gap
Actuation time it is relatively short, accordingly, it would be desirable to for protection system and the advantage and disadvantage of spark gap, formulating a kind of more quickly has
The protection system of effect, can prevent that overvoltage stress from continuing to send out in system disturbance, module failure or alternating current-direct current power network overvoltage
Exhibition, improves the reliability of transverter.
Utility model content
The purpose of this utility model, is to provide a kind of protection system of the series compensation equipment set based on spark gap
System, ensure that equipment, in system disturbance, module failure or alternating current-direct current power network overvoltage, can be acted reliably, protection is set
It is standby not received voltage stress and damaged.
In order to achieve the above object, solution of the present utility model is：
A kind of protection system of the series compensation equipment set based on spark gap, the protection system of the series compensation equipment
System includes series transformer, by-pass switch and spark gap,
The spark gap and by-pass switch of bridging are configured at series transformer valve side winding two ends, both are in parallel；
Spark gap and by-pass switch coordinate, and protect the safety of series compensation equipment.
As further preferred scheme of the present utility model, when the series transformer valve side winding two ends of the configuration are bridged
The level of protection of spark gap when can not protect series compensation equipment, configuration is connected across series transformer line side winding two
The spark gap at end.
As further preferred scheme of the present utility model, configure and bridge at the series transformer line side winding two ends
By-pass switch.
As further preferred scheme of the present utility model, the other sides of series transformer use star-star connection mode,
Or use delta connection mode.
As further preferred scheme of the present utility model, the other side windings of series transformer use star-star connection
During mode, the series transformer increase balance winding.
As further preferred scheme of the present utility model, the other side windings of series transformer use star-star connection side
During formula, neutral-point solid ground or resistance grounded.
As further preferred scheme of the present utility model, the series transformer include balance winding when, balance around
Group two ends do not configure the spark gap of bridging.
As further preferred scheme of the present utility model, wherein one end of the series transformer balance winding directly connects
Ground.
As further preferred scheme of the present utility model, at least one end of the balance winding of the series transformer is through fire
Flower gap ground.
The beneficial effects of the utility model, are to provide a kind of protection of the series compensation equipment set based on spark gap
System, ensure that equipment, in system disturbance, module failure or alternating current-direct current power network overvoltage, can be acted reliably, protection
Equipment has not received voltage stress and damaged, the reliability overall so as to improve equipment, is suitable for engineer applied.
Brief description of the drawings
Fig. 1 is that (series transformer low-pressure side is added using star connection for the protection system of the utility model series compensation equipment
Balance the mode of connection of winding) structure chart；
Fig. 2 is that (series transformer low-pressure side is added using star connection for the protection system of the utility model series compensation equipment
Balance the mode of connection of winding) structure chart, line side winding two ends configuration bridging spark gap；
Fig. 3 is that (series transformer low-pressure side is added using star connection for the protection system of the utility model series compensation equipment
Balance the mode of connection of winding) structure chart, line side winding two ends configuration by-pass switch；
Fig. 4 is that (series transformer low-pressure side is connect using triangle for the protection system of the utility model series compensation equipment
Line mode) structure chart；
Fig. 5 is balance winding connection mode figure, has one end to be directly grounded；
Fig. 6 is balance winding connection mode figure, and at least one end is grounded through spark gap；
Fig. 7 is delta connection mode figure.
Embodiment
Embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings.
The utility model proposes a kind of protection system of the series compensation equipment set based on spark gap, such as Fig. 1 institutes
Show, the protection system of the series compensation equipment is including but not limited to series transformer, by-pass switch and spark gap, in series connection
The spark gap and by-pass switch of transformer valve side winding two ends configuration bridging, both are in parallel；Spark gap and by-pass switch are matched somebody with somebody
Close, protect the safety of series compensation equipment.
When the level of protection for the spark gap that the series transformer valve side winding two ends of the configuration are bridged can protect string
During connection compensation equipment, the spark gap installed in series transformer line side winding two ends can not be configured, as shown in Figure 1.
When the level of protection for the spark gap that the series transformer valve side winding two ends of the configuration are bridged can not be protected
During series compensation equipment, configuration is connected across the spark gap at series transformer line side winding two ends, as shown in Figure 2.
The by-pass switch of bridging can also be configured at the series transformer line side winding two ends, protection is further improved
The reliability of system, if as shown in figure 3, simultaneously configuration installed in series transformer line side winding two ends spark gap,
Then by-pass switch is in parallel with the spark gap installed in series transformer line side winding two ends.
The other sides of series transformer can use star-star connection mode, it would however also be possible to employ delta connection mode, such as scheme
4th, shown in Fig. 7.
When the other side windings of series transformer use star-star connection mode, series transformer increase balance around
Group, as shown in Figure 5.
When the other side windings of series transformer use star-star connection mode, neutral point can be directly grounded or through resistance
Ground connection, as shown in Figure 5.
When the series transformer includes balance winding, balance winding two ends do not configure the spark gap of bridging.
Wherein one end of the series transformer balance winding is directly grounded.As shown in Figure 5.
At least one end of the balance winding of the series transformer is grounded through spark gap, further improves protection system
Reliability, as shown in Figure 6.
Finally it should be noted that：Only illustrate the technical solution of the utility model with reference to above-described embodiment rather than it is limited
System.Those of ordinary skill in the art are to be understood that：Those skilled in the art can be to specific implementation of the present utility model
Mode is modified or equivalent, but these modifications or change are being applied within pending patent requirements protection domain..
Claims (9)
1. a kind of protection system of the series compensation equipment set based on spark gap, it is characterised in that：The series compensation is set
Standby protection system includes series transformer, by-pass switch and spark gap,
The spark gap and by-pass switch of bridging are configured at series transformer valve side winding two ends, both are in parallel；
Spark gap and by-pass switch coordinate, and protect the safety of series compensation equipment.
2. a kind of protection system of series compensation equipment set based on spark gap as claimed in claim 1, its feature is existed
In when the level of protection for the spark gap that the series transformer valve side winding two ends of the configuration are bridged can not protect series connection to mend
When repaying equipment, configuration is connected across the spark gap at series transformer line side winding two ends.
3. a kind of protection system of series compensation equipment set based on spark gap as claimed in claim 1, its feature is existed
In in the by-pass switch of series transformer line side winding two ends configuration bridging.
4. a kind of protection system of series compensation equipment set based on spark gap as claimed in claim 1, its feature is existed
In the other sides of series transformer use star-star connection mode, or use delta connection mode.
5. a kind of protection system of series compensation equipment set based on spark gap as claimed in claim 4, its feature is existed
In, when the other side windings of series transformer use star-star connection mode, the series transformer increase balance winding.
6. a kind of protection system of series compensation equipment set based on spark gap as claimed in claim 4, its feature is existed
In, when the other side windings of series transformer use star-star connection mode, neutral-point solid ground or resistance grounded.
7. a kind of protection system of series compensation equipment set based on spark gap as claimed in claim 5, its feature is existed
In when the series transformer includes balance winding, balance winding two ends do not configure the spark gap of bridging.
8. a kind of protection system of series compensation equipment set based on spark gap as claimed in claim 5, its feature is existed
In wherein one end of the series transformer balance winding is directly grounded.
9. a kind of protection system of series compensation equipment set based on spark gap as claimed in claim 5, its feature is existed
In at least one end of the balance winding of the series transformer is grounded through spark gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621423961.4U CN206340977U (en) | 2016-12-22 | 2016-12-22 | A kind of protection system of the series compensation equipment set based on spark gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621423961.4U CN206340977U (en) | 2016-12-22 | 2016-12-22 | A kind of protection system of the series compensation equipment set based on spark gap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206340977U true CN206340977U (en) | 2017-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621423961.4U Active CN206340977U (en) | 2016-12-22 | 2016-12-22 | A kind of protection system of the series compensation equipment set based on spark gap |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108233390A (en) * | 2016-12-22 | 2018-06-29 | 南京南瑞继保电气有限公司 | A kind of protection system of the series compensation equipment based on spark gap setting |
-
2016
- 2016-12-22 CN CN201621423961.4U patent/CN206340977U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108233390A (en) * | 2016-12-22 | 2018-06-29 | 南京南瑞继保电气有限公司 | A kind of protection system of the series compensation equipment based on spark gap setting |
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