CN103840553A - Failure starting circuit and method for starting failure circuit - Google Patents
Failure starting circuit and method for starting failure circuit Download PDFInfo
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- CN103840553A CN103840553A CN201410067940.2A CN201410067940A CN103840553A CN 103840553 A CN103840553 A CN 103840553A CN 201410067940 A CN201410067940 A CN 201410067940A CN 103840553 A CN103840553 A CN 103840553A
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Abstract
The invention discloses a failure starting circuit and a method for starting a failure circuit. The failure starting circuit is formed by connecting a first starting circuit and a second starting circuit in parallel. The first starting circuit is formed by connecting a first current starting circuit, a first main transformer protection circuit and a first disconnector circuit in series. The first main transformer protection circuit is formed by connecting a first protection starting circuit and a first three-jump starting circuit in parallel. The second starting circuit is formed by connecting a second current starting circuit, a second main transformer protection circuit and a second disconnector circuit in series. The second main transformer protection circuit is formed by connecting a second protection starting circuit and a second three-jump starting circuit in parallel. A failure starting signal is generated when the conditions of the current criteria/criterion, the protection action criteria/criterion and switching-in of disconnectors/a disconnector of the first starting circuit and/or the second starting circuit are met at the same time. By the implementation of the failure starting circuit and the method for starting the failure circuit, the complex requirements of an old substation for starting the failure circuit can be satisfied, and space is also reversed for subsequent transformation.
Description
Technical field
The present invention relates to technical field of power systems, particularly relate to the method in a kind of malfunctioning startup loop and the malfunctioning loop of startup.
Background technology
In electric power system; breaker fail protection is in the time that system breaks down; the protection action of faulty line (or transformer) is in the time of the malfunctioning refusal tripping operation of breaker operator; utilize the protective effect of faulty line (or transformer) at the adjacent circuit breaker trip of transformer station; with good conditionsily can also utilize passage, the protection that far-end is tripped about circuit breaker simultaneously.
Breaker fail protection is effective measures that prevent circuit breaker tripping, and the safety and stability of electric power system has been played to very important effect.The typical malfunctioning startup of 220kV transformer switch loop, the two cover of configuration breaker fail protection, and opening all of failure protection electric current criterion and disconnecting link position realized in the poor failure protection of mother.
And without the old transformer station of crossing malfunctioning Circuit Retrofit; only dispose single cover failure protection, and disconnecting link contact is inadequate, adopts disconnecting link contact heavily moving; start malfunctioning and start tripping operation by switching on the spot, cannot in the poor failure protection of mother, realize malfunctioning electric current criterion and disconnecting link position open into.If will protect by above-mentioned malfunctioning startup loop Dui Jiu transformer station, can only change primary equipment old transformer station is transformed.But because primary equipment is asynchronous with secondary device life cycle, primary equipment life cycle was far grown secondary device, if change primary equipment because of the transformation of disconnecting link auxiliary node, do not meet on the one hand the requirement of net fixed assets rate, also be great waste on the one hand in addition, and danger increases greatly, therefore existing malfunctioning startup loop is not suitable for old transformer station.
Summary of the invention
Based on this, be necessary not to be suitable for for existing malfunctioning startup loop the problem of old transformer station, the method in a kind of malfunctioning startup loop and the malfunctioning loop of startup is provided.
A kind of malfunctioning startup loop, comprise that the first startup loop and second in parallel starts loop, described first starts the first current start loop that loop comprises series connection, the first main transformer protection loop and for starting the first malfunctioning disconnecting link loop by switching on the spot disconnecting link, described the first main transformer protection loop comprises that the first protection in parallel starts loop and the or three and jumps startup loop, described second starts the second current start loop that loop comprises series connection, the second main transformer protection loop and for starting the second malfunctioning disconnecting link loop by switching on the spot disconnecting link, described the second main transformer protection loop comprises that the second protection in parallel starts loop and the two or three and jumps startup loop, current start contact and malfunctioning general export pressing plate form and relation in described current start loop, protection action node and protection start malfunctioning pressing plate and start in loop and form and relation in described protection, three jump startup contact and three jumps the malfunctioning pressing plate of startup formation and relation in described three jumpings start loop, when meet the described first electric current criterion that starts loop and/or described second and start loop simultaneously, protection operating criterion and disconnecting link position are opened fashionable, generate malfunctioning enabling signal.
Based on the method in the malfunctioning loop of malfunctioning startup loop start as above, comprise the following steps:
Start loop and described second by positive supply to described first and start loop transmission input signal;
Judge whether the described first output that starts loop or described the second startup loop has described input signal output;
If so, start the malfunctioning loop of the bus corresponding with disconnecting link position in described the first disconnecting link loop or described the second disconnecting link loop.
The method in above-mentioned malfunctioning startup loop and the malfunctioning loop of startup; whether meet the judgement of the criterion that starts malfunctioning loop based on the separate startup loop of two covers; every cover starts current start loop, main transformer protection loop and the disconnecting link loop that loop comprises series connection; when meet simultaneously electric current criterion, protection operating criterion and the disconnecting link position in any a set of startup loop open fashionable, without in the poor failure protection of mother, open realize electric current criterion and disconnecting link position open into.Still retain disconnecting link and switch on the spot the malfunctioning mode of startup, can meet the complicated requirement of old transformer station, reserved space for later transformation again.
Brief description of the drawings
Fig. 1 is the structural representation of the malfunctioning startup of the present invention loop the first execution mode;
Fig. 2 is the circuit diagram of the malfunctioning startup of the present invention loop the second execution mode;
Fig. 3 is the schematic flow sheet that the present invention starts method first execution mode in malfunctioning loop.
Embodiment
Refer to Fig. 1, Fig. 1 is the structural representation of the malfunctioning startup of the present invention loop the first execution mode.
The described malfunctioning startup loop of present embodiment comprises that the first startup loop 100 and second in parallel starts loop 200, first starts the first current start loop 110 that loop 100 comprises series connection, the first main transformer protection loop 120 and for starting the first malfunctioning disconnecting link loop 130 by switching on the spot disconnecting link, the first main transformer protection loop 120 comprises that the first protection in parallel starts loop the 121 and the 1 and jumps startup loop 122, second starts the second current start loop 210 that loop 200 comprises series connection, the second main transformer protection loop 220 and for starting the second malfunctioning disconnecting link loop 230 by switching on the spot disconnecting link, the second main transformer protection loop 220 comprises that the second protection in parallel starts loop the 221 and the 23 and jumps startup loop 222, current start contact and malfunctioning general export pressing plate form and relation in current start loop 110 or 210, protection action node and protection start malfunctioning pressing plate and start in loop 121 or 221 and form and relation in protection, three jumpings start contact and three and jump the malfunctioning pressing plate of startup formation and relation in three jumpings startup loops 122 or 222, start loop 100 and/or second and start the electric current criterion in loop 200 when meet first simultaneously, protection operating criterion and disconnecting link position are opened fashionable, generate malfunctioning enabling signal.
Malfunctioning startup loop described in present embodiment; whether meet the judgement of the criterion that starts malfunctioning loop based on the separate startup loop of two covers; every cover starts current start loop, main transformer protection loop and the disconnecting link loop that loop comprises series connection; when meet simultaneously electric current criterion, protection operating criterion and the disconnecting link position in any a set of startup loop open fashionable, without in the poor failure protection of mother, open realize electric current criterion and disconnecting link position open into.Still retain disconnecting link and switch on the spot the malfunctioning mode of startup, can meet the complicated requirement of old transformer station, reserved space for later transformation again.
Wherein, first starts loop 100 and second starts loop 200, is the separate startup loops of two covers, receives identical input signal, is preferably for the malfunctioning startup of 220kV transformer switch loop.
Preferably; first starts in loop 100; the input in the first current start loop 110 is used for receiving input signal; output is connected with the input in the first main transformer protection loop 120; the output in the first main transformer protection loop 120 is connected with the input in the first disconnecting link loop 130; the output in the first disconnecting link loop 130, for being connected with malfunctioning loop, is convenient to the malfunctioning enabling signal of malfunctioning loop transport.
Preferably, when current start contact is connected and malfunctioning general export pressing plate drops into, input signal could be through input and the output in the first current start loop 110 or the second current start loop 210, meets the current start contact and the malfunctioning general export pressing plate that in current start loop 110 or 210, form " with relation " simultaneously.When protection action connection point is connected and protection starts malfunctioning pressing plate input; input signal could start through the first protection input and the output in loop 121 or the second protection startup loop 221, meets to start in loop 121 or 221, to form the protection action connection point of " with relation " and protect in protection to start malfunctioning pressing plate simultaneously.Three jump when startup contact is connected and the malfunctioning pressing plate of three jumping startups drops into, input signal could be jumped through the one or three jumping startup loop the 122 or the 23 input and the output in startup loop 222, and three jumpings that simultaneously meet formation " with relation " in three jumpings startup loops 122 or 222 start contacts and the malfunctioning pressing plate of three jumping startups.When mother I or mother's II disconnecting link position contact is connected, input signal could be through input and the output in the first disconnecting link loop 130 or the second disconnecting link loop 230.Start in loop 100 or 200 at any one; only have the input signal of working as can pass through disconnecting link loop, current start loop, main transformer protection loop (protection starts loop and/or three and jumps startup loops) simultaneously; meet first simultaneously and start electric current criterion, protection operating criterion and disconnecting link position that loop 100 and/or second starts loop 200 and open fashionablely, generate malfunctioning enabling signal.
In one embodiment; malfunctioning startup of the present invention loop also can comprise for starting loop 200 to the first startup loop 100 and second transmits the positive supply of input signal, described input signal for determine whether meet first start electric current criterion, protection operating criterion and disconnecting link position that loop 100 and/or second starts loop 200 open into.
Further; also can comprise the malfunctioning loop for receiving described malfunctioning enabling signal; malfunctioning loop and first starts between loop 100 and/or the second startup loop 200 also can comprise non electrical quantity protection cabinet, and described malfunctioning loop is connected with the first disconnecting link loop 130 and the second disconnecting link loop 230 respectively by described non electrical quantity protection cabinet.
In another embodiment, malfunctioning startup of the present invention loop also can comprise that voltage switching device power supply sky opens.
Further, in order to prevent occurring the situations such as contact is sticky extremely, wrong line in malfunctioning startup of the present invention loop, can test to malfunctioning startup of the present invention loop by following acceptance method:
The conducting situation in loop while checking the action situation of each contact and the action of each contact, i.e. the each contact of conducting one by one, test only has this contact conducting, and other contacts are all obstructed.
Check the effect of each pressing plate in loop, when certain starts loop protection action connection point and all satisfies condition, move back pressing plate and check the effect of this pressing plate by throwing.
The action situation of inspection disconnecting link position contact, disconnecting link position and contact state are corresponding one by one.
Specific experiment thes contents are as follows shown in table, and first set, the second cover start malfunctioning loop and all test by following experiment content:
Consult Fig. 2, Fig. 2 is the circuit diagram of the malfunctioning startup of the present invention loop the second execution mode.
The malfunctioning startup loop of present embodiment and the difference of the first execution mode are: described current start contact and described malfunctioning general export pressing plate are arranged in main transformer non electrical quantity protection cabinet 410 or 510; described protection action connection point and described protection start malfunctioning pressing plate and are arranged in main transformer protection cabinet 421 or 521; described three jumping action connection points and described three are jumped the malfunctioning pressing plate of startup and are uprised in control box 422 or 522, and described the first disconnecting link loop and/or described the second disconnecting link loop are arranged in high side voltage a-b box 430 or 530.
As shown in Figure 2; current start contact is SLQD1-1 and SLQD1-2; protection action connection point is TJ; three jumping action connection points are TJR; malfunctioning general export pressing plate is 8LP4 and 8LP5, and it is 1LP31 that protection starts malfunctioning pressing plate, and it is 1-4LP1 and 1-4LP2 that three jumpings start malfunctioning pressing plate; the female disconnecting link of I position contact is 1YQJ5, and the female disconnecting link of II position contact is 2YQJ5.
Preferably, by check 01 to 021A or 021B between the signal of telecommunication, can determine whether and meet electric current criterion.By the signal of telecommunication between inspection 021A to 023A or 021B to 023B, can determine whether and meet protection operating criterion.By checking 023A or between's 023B to 024 the signal of telecommunication, can determine whether that meeting the female disconnecting link of I position drops into.By checking 023A or between's 023B to 025 the signal of telecommunication, can determine whether that meeting the female disconnecting link of II position drops into.
Refer to Fig. 3, Fig. 3 is the schematic flow sheet that the present invention is based on method first execution mode in the malfunctioning loop of above-mentioned malfunctioning startup loop start.
The method in the malfunctioning loop of described startup of present embodiment comprises the following steps:
The method in the malfunctioning loop of startup described in present embodiment; whether meet the judgement of the criterion that starts malfunctioning loop based on the separate startup loop of two covers; every cover starts current start loop, main transformer protection loop and the disconnecting link loop that loop comprises series connection; when meet simultaneously electric current criterion, protection operating criterion and the disconnecting link position in any a set of startup loop open fashionable, without in the poor failure protection of mother, open realize electric current criterion and disconnecting link position open into.Still retain disconnecting link and switch on the spot the malfunctioning mode of startup, can meet the complicated requirement of old transformer station, reserved space for later transformation again.
The above embodiment has only expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a malfunctioning startup loop, it is characterized in that, comprise that the first startup loop and second in parallel starts loop, described first starts the first current start loop that loop comprises series connection, the first main transformer protection loop and for starting the first malfunctioning disconnecting link loop by switching on the spot disconnecting link, described the first main transformer protection loop comprises that the first protection in parallel starts loop and the or three and jumps startup loop, described second starts the second current start loop that loop comprises series connection, the second main transformer protection loop and for starting the second malfunctioning disconnecting link loop by switching on the spot disconnecting link, described the second main transformer protection loop comprises that the second protection in parallel starts loop and the two or three and jumps startup loop, current start contact and malfunctioning general export pressing plate form and relation in described current start loop, protection action node and protection start malfunctioning pressing plate and start in loop and form and relation in described protection, three jump startup contact and three jumps the malfunctioning pressing plate of startup formation and relation in described three jumpings start loop, when meet the described first electric current criterion that starts loop and/or described second and start loop simultaneously, protection operating criterion and disconnecting link position are opened fashionable, generate malfunctioning enabling signal.
2. malfunctioning startup according to claim 1 loop, is characterized in that, described current start contact and described malfunctioning general export pressing plate are arranged in main transformer non electrical quantity protection cabinet.
3. malfunctioning startup according to claim 1 loop, is characterized in that, described protection action connection point and described protection start malfunctioning pressing plate and be arranged in main transformer protection cabinet.
4. malfunctioning startup according to claim 1 loop, is characterized in that, described three jumping action connection points and described three are jumped the malfunctioning pressing plate of startup and uprised in control box.
5. malfunctioning startup according to claim 1 loop, is characterized in that, described the first disconnecting link loop and/or described the second disconnecting link loop are arranged in high side voltage a-b box.
6. malfunctioning startup according to claim 1 loop; it is characterized in that; also comprise for starting loop and described second to described first and start loop and transmit the positive supply of input signal, described input signal for determine whether meet described first start electric current criterion, protection operating criterion and disconnecting link position that loop and/or described second starts loop open into.
7. malfunctioning startup according to claim 1 loop, is characterized in that, also comprises the malfunctioning loop for receiving described malfunctioning enabling signal.
8. malfunctioning startup according to claim 7 loop, is characterized in that, also comprises non electrical quantity protection cabinet, and described malfunctioning loop is connected with described the first disconnecting link loop and/or described the second disconnecting link loop respectively by described non electrical quantity protection cabinet.
9. according to the malfunctioning startup loop described in any one in claim 1 to 8, it is characterized in that, also comprise that voltage switching device power supply sky opens.
10. based on the method in the malfunctioning loop of malfunctioning startup loop start as in one of claimed in any of claims 1 to 9, it is characterized in that, comprise the following steps:
Start loop and described second by positive supply to described first and start loop transmission input signal;
Judge whether the described first output that starts loop or described the second startup loop has described input signal output;
If so, start the malfunctioning loop of the bus corresponding with disconnecting link position in described the first disconnecting link loop or described the second disconnecting link loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410067940.2A CN103840553B (en) | 2014-02-26 | 2014-02-26 | Failure starting circuit and method for starting failure circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410067940.2A CN103840553B (en) | 2014-02-26 | 2014-02-26 | Failure starting circuit and method for starting failure circuit |
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| Publication Number | Publication Date |
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| CN103840553A true CN103840553A (en) | 2014-06-04 |
| CN103840553B CN103840553B (en) | 2017-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410067940.2A Active CN103840553B (en) | 2014-02-26 | 2014-02-26 | Failure starting circuit and method for starting failure circuit |
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| CN (1) | CN103840553B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107300630A (en) * | 2017-07-28 | 2017-10-27 | 广东电网有限责任公司揭阳供电局 | Novel failure protection test terminal |
| CN113161997A (en) * | 2020-12-17 | 2021-07-23 | 广州发展电力科技有限公司 | Circuit breaker failure protection system |
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| JP2011055622A (en) * | 2009-09-01 | 2011-03-17 | Panasonic Corp | Ih cooking heater, method for controlling the ih cooking heater and program |
| CN102280868A (en) * | 2011-08-05 | 2011-12-14 | 南京中德保护控制系统有限公司 | Method for preventing override trip of mine power supply system |
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- 2014-02-26 CN CN201410067940.2A patent/CN103840553B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2011055622A (en) * | 2009-09-01 | 2011-03-17 | Panasonic Corp | Ih cooking heater, method for controlling the ih cooking heater and program |
| CN102280868A (en) * | 2011-08-05 | 2011-12-14 | 南京中德保护控制系统有限公司 | Method for preventing override trip of mine power supply system |
Non-Patent Citations (2)
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| 刘志民等: "日月山750kV变电站断路器失灵保护的应用", 《青海电力》 * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300630A (en) * | 2017-07-28 | 2017-10-27 | 广东电网有限责任公司揭阳供电局 | Novel failure protection test terminal |
| CN107300630B (en) * | 2017-07-28 | 2023-03-24 | 广东电网有限责任公司揭阳供电局 | Failure protection test terminal |
| CN113161997A (en) * | 2020-12-17 | 2021-07-23 | 广州发展电力科技有限公司 | Circuit breaker failure protection system |
| CN113161997B (en) * | 2020-12-17 | 2023-01-31 | 广州发展电力科技有限公司 | Circuit breaker failure protection system |
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| Publication number | Publication date |
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| CN103840553B (en) | 2017-02-15 |
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Effective date of registration: 20200924 Address after: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee after: Guangzhou Power Supply Bureau of Guangdong Power Grid Co.,Ltd. Address before: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee before: GUANGZHOU POWER SUPPLY Co.,Ltd. |