CN105098734B - A kind of anti-10kV switchs the method for tripping of bypassing the immediate leadership and protection control device - Google Patents
A kind of anti-10kV switchs the method for tripping of bypassing the immediate leadership and protection control device Download PDFInfo
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- CN105098734B CN105098734B CN201510510144.6A CN201510510144A CN105098734B CN 105098734 B CN105098734 B CN 105098734B CN 201510510144 A CN201510510144 A CN 201510510144A CN 105098734 B CN105098734 B CN 105098734B
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Abstract
The present invention provides a kind of anti-10kV and switchs trip protection control device of bypassing the immediate leadership; for including in principal and subordinate substation, multiple principal and subordinate substation 10KV feeder lines, first and second busbar, first, second and third current transformer, the 10kV switches of first, second and third switch and busbar connection system; control device at least one is protected to protect component; protection component may be disposed between the first busbar and multiple Bulk Supply Substation 10KV feeder lines and/or the second busbar and multiple 10KV feeder lines from substation between, including a branch switch and a branch current mutual inductor；Wherein, one end of branch switch is connected with the first busbar or the second busbar, and the other end is connected with one end of branch current mutual inductor；The other end of branch current mutual inductor be connected with branch switch among the corresponding multiple 10KV feeder lines of busbar one or its multiple be connected.Implement the present invention, the switch between substation and busbar can be avoided to bypass the immediate leadership phenomena such as tripping, improve the safety of Operation of Electric Systems.
Description
Technical field
The present invention relates to 10kV switch protections technical field more particularly to a kind of anti-10kV switches bypass the immediate leadership tripping method and
Protect control device.
Background technology
With the development of society, urban electricity supply reliability requirement is higher and higher, therefore electric system is connected with user
10KV feeder lines are also increasingly paid attention to.
In the prior art, as shown in Figure 1,10kV switches and busbar are using conventional connections mode, multiple Bulk Supply Substation 10KV
Feeder line（Such as 1F1 to 1Fn）It accesses on the first busbar 10KV 1M and accesses again in Bulk Supply Substation 1B, Bulk Supply Substation 1B and multiple main transformers
It is controlled between the 10KV feeder lines of power station by the first Current Transmit 1 and first switch DL1；It is multiple to be presented from substation 10KV
Line（Such as 2F1 to 2Fn）Access on the second busbar 10KV 2M and access again from substation 2B, from substation 2B with it is multiple from power transformation
It stands and is controlled by the second Current Transmit 2 and second switch DL2 between 10KV feeder lines；Simultaneously in order to avoid principal and subordinate's power transformation
One powers off among standing, and Bulk Supply Substation 10KV feeder lines or can not get power supply from substation's 10KV feeder lines, it is therefore desirable to the
Third Current Transmit 3 and third switch DL3 are equipped between one busbar 10KV 1M and the second busbar 10KV 2M, realizes busbar
Switching and backup.
The shortcomings that above-mentioned 10kV switches and the busbar mode of connection, is：（1）The 10KV feeder lines mode of connection and relaying configuration skill
Art limits, and the switch being easy to cause between substation and busbar is bypassed the immediate leadership tripping and unprotect during bus-bar fault；（2）10KV is presented
Switch and protection itself quality problems on line, the switch and relay fail for leading to 10KV feeder lines are caused between substation and busbar
Switch bypass the immediate leadership tripping；（3）Protection seting mismate, is also easy to cause substation and busbar above and below switch on 10KV feeder lines
Between switch bypass the immediate leadership tripping etc..
Therefore, bypass the immediate leadership the method for tripping and protection control device there is an urgent need for a kind of anti-10kV switch, can to avoid substation with
Switch between busbar is bypassed the immediate leadership phenomena such as tripping.
Invention content
Technical problem to be solved of the embodiment of the present invention is, provide a kind of method that anti-10kV switches bypass the immediate leadership tripping and
Control device is protected, the switch between substation and busbar can be avoided to bypass the immediate leadership phenomena such as trip, electric system is improved and transports
Capable safety.
In order to solve the above-mentioned technical problem, an embodiment of the present invention provides a kind of anti-10kV to switch trip protection control of bypassing the immediate leadership
Device, for including Bulk Supply Substation, from substation, multiple Bulk Supply Substation 10KV feeder lines, multiple from substation's 10KV feeder lines, first
Busbar, the second busbar, the first current transformer, first switch, the second current transformer, second switch, third current transformer,
In the 10kV switches and busbar connection system of third switch, the protection control device at least one protects component, the protection
Component may be disposed between first busbar and the multiple Bulk Supply Substation 10KV feeder lines and/or second busbar with it is described
Between multiple 10KV feeder lines from substation, including a branch switch and a branch current mutual inductor；Wherein,
One end of the branch switch is connected with first busbar or second busbar, the other end and branch electricity
One end of current transformer is connected；
The other end of the branch current mutual inductor be connected with the branch switch the corresponding multiple 10KV feeder lines of busbar it
In one or its it is multiple be connected.
Wherein, the protection component further includes branch bar, and the branch bar is another with the branch current mutual inductor
One end is connected, among the corresponding multiple 10KV feeder lines of the busbar that is also connected with the branch switch one or its multiple be connected.
Wherein, there are six the protection components, wherein three are set to first busbar and the multiple Bulk Supply Substation
Between 10KV feeder lines, the other three is set between second busbar and the multiple 10KV feeder lines from substation.
Wherein, the Bulk Supply Substation 10KV feeder line quantity that three protection components being connected with first busbar are connect is homogeneous
Deng；What the other three protection component being connected with second busbar was connect is equal from substation 10KV feeder line quantity.
The embodiment of the present invention additionally provides a kind of method that anti-10kV switchs tripping of bypassing the immediate leadership, and dress is controlled in aforementioned protection
Middle realization is put, the method includes：
By the branch current mutual inductor of each protection component in the protection control device, obtain and each protection component
The current value of multiple 10KV feeder lines of connection；
An at least current value is more than its correspondence among multiple 10KV feeder lines that a protection component is correspondingly connected with are got
During preset current threshold, it is determined that the current value got is more than its 10KV feeder lines correspondence for corresponding to predetermined current threshold
Protection component, and control contained branch switch tripping in the determining protection component.
Wherein, the method further includes：
When contained branch switch tripping in the determining protection component, then judge to be connected with the tripping branch switch
Busbar whether be the first busbar；
If it is, the first switch tripping that control is connected with first busbar, and further control positioned at described the
Third switch trip between one busbar and second busbar；
If it is not, then the second switch tripping that control is connected with second busbar, and further control positioned at described the
Third switch trip between one busbar and second busbar.
Wherein, the method further includes：
When getting the failure of the first busbar, then the first switch that control is connected with first busbar trips；When
When getting the failure of the second busbar, then the second switch that control is connected with second busbar trips.
Implement the embodiment of the present invention, have the advantages that：
In embodiments of the present invention, in due to using conventional connections mode in existing 10kV switches and busbar, packet is added
The protection control device of one or more protection components is included, by the way that the branch current mutual inductor in component is protected to realize overcurrent protection
And by the way that the branch switch in component is protected to realize failure protection（That is tripping）, so as to avoid between substation and busbar
Phenomena such as tripping of bypassing the immediate leadership is switched, improves the safety of Operation of Electric Systems.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, according to
These attached drawings obtain other attached drawings and still fall within scope of the invention.
Fig. 1 is the switches of 10kV in the prior art and the circuit connection diagram of busbar conventional connections mode；
Fig. 2 is the circuit connection diagram that anti-10kV provided in an embodiment of the present invention switchs trip protection control device of bypassing the immediate leadership；
Fig. 3 is the application scenarios signal that anti-10kV provided in an embodiment of the present invention switchs trip protection control device of bypassing the immediate leadership
Figure；
Fig. 4 is the logic knot that anti-10kV provided in an embodiment of the present invention switchs trip protection control device application scenarios of bypassing the immediate leadership
Structure schematic diagram；
Fig. 5 is the flow chart for the method that anti-10kV provided in an embodiment of the present invention switchs tripping of bypassing the immediate leadership.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing
Step ground detailed description.
As shown in Fig. 2, in the embodiment of the present invention, a kind of anti-10kV provided switchs trip protection control device of bypassing the immediate leadership,
For including Bulk Supply Substation 1B, from substation 2B, multiple Bulk Supply Substation 10KV feeder lines（The 1Fn such as 1F1 ...）, it is multiple from substation
10KV feeder lines（The 2Fn such as 2F1 ...）, the first busbar 10KV 1M, the second busbar 10KV 2M, the first Current Transmit 1, first open
Close DL1, the second Current Transmit 2, second switch DL2, third Current Transmit 3, third switch DL3 10kV switch and
In busbar connection system；Wherein,
Multiple Bulk Supply Substation 10KV feeder lines（The 1Fn such as 1F1 ...）It accesses on the first busbar 10KV 1M and accesses Bulk Supply Substation 1B again
In, it is carried out between Bulk Supply Substation 1B and multiple Bulk Supply Substation 10KV feeder lines by the first Current Transmit 1 and first switch DL1
Control；
It is multiple from substation's 10KV feeder lines（Such as 2F1 to 2Fn）It accesses on the second busbar 10KV 2M and is accessed again from substation 2B
In, it is carried out between substation 2B and multiple 10KV feeder lines from substation by the second Current Transmit 2 and second switch DL2
Control；
Third Current Transmit 3 is equipped between the first busbar 10KV 1M and the second busbar 10KV 2M and third switchs
DL3 realizes busbar switching and backup；
Wherein, protection control device at least one protect component, protection component may be disposed at the first busbar 10KV 1M with it is more
A Bulk Supply Substation 10KV feeder lines（The 1Fn such as 1F1 ...）Between and/or the second busbar 10KV 2M with it is multiple from substation's 10KV feeder lines
（Such as 2F1 to 2Fn）Between, including a branch switch FK and a branch current mutual inductor FCT；Wherein,
One end of branch switch FK is connected with the first busbar 10KV 1M or the second busbar 10KV 2M, the other end and branch's electricity
One end of current transformer FCT is connected；
The other end of branch current mutual inductor FCT is connected among the corresponding multiple 10KV feeder lines of busbar it with branch switch FK
One or its it is multiple be connected.
For the ease of being connected with multiple 10KV feeder lines, therefore component is protected to further include branch bar FM, branch bar FM with
The other end of branch current mutual inductor FCT is connected, among the corresponding multiple 10KV feeder lines of the busbar that is also connected with branch switch FK its
One or its it is multiple be connected.
In order to reduce the complexity of connection, therefore protect there are six components, wherein three are set to the first busbar 10KV 1M
With multiple Bulk Supply Substation 10KV feeder lines（The 1Fn such as 1F1 ...）Between, the other three be set to the second busbar 10KV 2M with it is multiple from change
Power station 10KV feeder lines（Such as 2F1 to 2Fn）Between.
For the ease of realizing the load balance of protection component, therefore three protections being connected with the first busbar 10KV 1M
The Bulk Supply Substation 10KV feeder line quantity of component connection is equal；The other three protection component being connected with the second busbar 10KV 2M connects
What is connect is equal from substation 10KV feeder line quantity.
As an example, as shown in Figure 3 and Figure 4, illustrate so that 1M sections of the first busbar 10KV as an example.When the first busbar
Any failure occurs for 1M sections of 10KV（Such as d1 point failures）, the first switch DL1 in the first busbar 10KV 1M sections is cut off at this time, i.e.,
First switch DL1 trippings are controlled, fault spread is prevented so as to which bus-bar fault be isolated；When Bulk Supply Substation 10KV feeder lines（Such as the event of d2 points
Barrier）, to inductive switch or relay fail, the at this time corresponding quick overcurrent protection for increasing 1M sections of the first busbar 10KV（Or failure is protected
Shield）, the branch switch FK3 for corresponding to protection control device in Fig. 3 at the d2 of trouble point is cut off, that is, the branch at d2 is controlled to open
FK3 trippings are closed, effectively avoid the trip problem of bypassing the immediate leadership brought by switch and relay fail, and lead to the first original busbar 10KV
1M decompressions.
The method of tripping as shown in figure 5, a kind of anti-10kV switches in the embodiment of the present invention, to provide are bypassed the immediate leadership, preceding
It is realized in the protection control device stated, the method includes：
Step S1, by it is described protection control device in it is each protection component branch current mutual inductor, obtain with it is each
Protect the current value of multiple 10KV feeder lines of component connection；
Step S2, an at least current value is more than among multiple 10KV feeder lines that a protection component is correspondingly connected with are got
When it corresponds to preset current threshold, it is determined that the current value got is more than its 10KV feedback for corresponding to predetermined current threshold
The corresponding protection component of line, and control contained branch switch tripping in the determining protection component.
It should be noted that the transformer induced current value of branch current by protecting each protection component in control device
It realizes overcurrent protection, once current value is more than the current threshold set in it, then corresponding branch switch can be controlled to trip.
In order to avoid branch switch tripping, protection circuit normal operation, therefore the method further includes：
When contained branch switch tripping in the determining protection component, then judge to be connected with the tripping branch switch
Busbar whether be the first busbar；
If it is, the first switch tripping that control is connected with first busbar, and further control positioned at described the
Third switch trip between one busbar and second busbar；
If it is not, then the second switch tripping that control is connected with second busbar, and further control positioned at described the
Third switch trip between one busbar and second busbar.
In order to realize the protection when busbar breaks down to circuit, therefore the method further includes：
When getting the failure of the first busbar, then the first switch that control is connected with first busbar trips；When
When getting the failure of the second busbar, then the second switch that control is connected with second busbar trips.
It should be noted that there are many kinds of bus-bar faults, including line short overcurrent, line broken circuit etc.；Wherein, circuit is short
It passes by the electric current that current inductor of the stream to be connected with current busbar is got and is more than its preset current threshold；Line broken circuit is
The electric current that the current inductor being connected with current busbar is got is 0.
Implement the embodiment of the present invention, have the advantages that：
In embodiments of the present invention, in due to using conventional connections mode in existing 10kV switches and busbar, packet is added
The protection control device of one or more protection components is included, by the way that the branch current mutual inductor in component is protected to realize overcurrent protection
And by the way that the branch switch in component is protected to realize failure protection（That is tripping）, so as to avoid between substation and busbar
Phenomena such as tripping of bypassing the immediate leadership is switched, improves the safety of Operation of Electric Systems.
Above disclosed is only a kind of preferred embodiment of the present invention, cannot limit the power of the present invention with this certainly
Sharp range, therefore equivalent variations made according to the claims of the present invention, are still within the scope of the present invention.
Claims (3)
- A kind of method of tripping 1. anti-10kV switches are bypassed the immediate leadership, which is characterized in that it switchs trip protection control of bypassing the immediate leadership in anti-10kV Realized in device, for include Bulk Supply Substation, from substation, multiple Bulk Supply Substation 10KV feeder lines, it is multiple from substation 10KV present Line, the first busbar, the second busbar, the first current transformer, first switch, the second current transformer, second switch, third electric current In mutual inductor, the 10kV switches of third switch and busbar connection system, the protection control device at least one protects component, institute Protection component is stated to may be disposed between first busbar and the multiple Bulk Supply Substation 10KV feeder lines and/or second busbar Between the multiple 10KV feeder lines from substation, including a branch switch (FK) and a branch current mutual inductor (FCT)；Its In,One end of the branch switch (FK) is connected with first busbar or second busbar, the other end and branch electricity One end of current transformer (FCT) is connected；The other end of the branch current mutual inductor (FCT) multiple 10KVs corresponding with the connected busbar of the branch switch (FK) are presented Among line one or its it is multiple be connected；The method includes：By the branch current mutual inductor of each protection component in the protection control device, obtain and connect with each protection component Multiple 10KV feeder lines current value；It is default to be more than its correspondence for an at least current value among multiple 10KV feeder lines that a protection component is correspondingly connected with are got Current threshold when, it is determined that the current value got be more than its correspond to predetermined current threshold the corresponding guarantor of 10KV feeder lines Protecting assembly, and control contained branch switch tripping in the determining protection component.
- 2. the method as described in claim 1, which is characterized in that the method further includes：When contained branch switch tripping in the determining protection component, then the mother being connected with the tripping branch switch is judged Whether line is the first busbar；If it is, the first switch tripping that control is connected with first busbar, and further control is located at the described first mother Third switch trip between line and second busbar；If it is not, then the second switch tripping that control is connected with second busbar, and further control is located at the described first mother Third switch trip between line and second busbar.
- 3. method as claimed in claim 2, which is characterized in that the method further includes：When getting the failure of the first busbar, then the first switch that control is connected with first busbar trips；Work as acquisition When breaking down to the second busbar, then the second switch that control is connected with second busbar trips.
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| CN106410763B (en) * | 2016-06-28 | 2018-09-21 | 国网江苏省电力公司无锡供电公司 | Integrated distribution website institute relay protection system |
| CN105958449B (en) * | 2016-06-28 | 2018-06-08 | 国网江苏省电力公司无锡供电公司 | Distribution website institute integrated form relay protection system |
| CN105939006B (en) * | 2016-06-28 | 2018-09-21 | 国网江苏省电力公司无锡供电公司 | The integrated distribution website institute relay protection system of dual power supply |
| CN109378802A (en) * | 2018-09-29 | 2019-02-22 | 浙江大唐乌沙山发电有限责任公司 | The application of anti-tripping power distribution equipment |
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| CN102510048B (en) * | 2011-10-27 | 2015-03-18 | 深圳市华力特电气股份有限公司 | Anti-override trip protection method |
| CN202797920U (en) * | 2012-09-04 | 2013-03-13 | 上海山源电子电气科技发展有限公司 | System for preventing override trip of supply network |
| CN103022995B (en) * | 2012-12-18 | 2015-04-22 | 中煤科工集团重庆研究院有限公司 | Mine override trip prevention method |
| CN104362599B (en) * | 2014-11-13 | 2017-02-15 | 国家电网公司 | Method for protecting low-voltage bus of intelligent substation |
| CN204361675U (en) * | 2015-01-29 | 2015-05-27 | 西安科技大学 | The emanant mine electric network relaying protection system of multi-cascade |
| CN104716637B (en) * | 2015-04-01 | 2017-09-29 | 哈尔滨国力电气有限公司 | It is a kind of to prevent that Coal Mine Power Distribution System from bypassing the immediate leadership the method for tripping operation |
| CN204947579U (en) * | 2015-08-19 | 2016-01-06 | 深圳供电局有限公司 | A kind of anti-10kV switch overstep tripping protecting control device |
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