CN103840553B - 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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- CN103840553B CN103840553B CN201410067940.2A CN201410067940A CN103840553B CN 103840553 B CN103840553 B CN 103840553B CN 201410067940 A CN201410067940 A CN 201410067940A CN 103840553 B CN103840553 B CN 103840553B
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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, more particularly to a kind of unsuccessful reason loop and start failure protection loop
Method.
Background technology
In power system, breaker fail protection is the faulty line in system jam（Or transformator）Guarantor
Shield action breaker operator failure refusal tripping operation when, using faulty line（Or transformator）Protective effect adjacent in transformer station
Circuit breaker trip, conditional can also utilize passage, make the protection that far-end trips simultaneously about chopper.
Breaker fail protection is effective measures, the safety to power system and the stable fortune preventing chopper tripping
Row serves very important effect.Typical 220kV transformer switch unsuccessful reason loop, configuration double set breaker failure is protected
Protect, and failure protection electric current criterion and opening of disconnecting link position are all realized in female difference failure protection.
And the old transformer station without failure Circuit Retrofit, only it is configured with single set failure protection, and disconnecting link contact is not, adopt
Moved with disconnecting link contact, by switching start failure protection and starting tripping on the spot it is impossible to realize failure electricity in female difference failure protection again
Stream criterion and disconnecting link position open into.To be protected to old transformer station by above-mentioned unsuccessful reason loop, can only change once
Equipment is transformed to old transformer station.But it is because that primary equipment and secondary device life cycle are asynchronous, primary equipment life
Cycle far grew secondary device, changed primary equipment if as the transformation of disconnecting link auxiliary node, was on the one hand unsatisfactory for fixing
The requirement of Net asset value rate, still further aspect is also great waste, and danger increases significantly, and therefore existing failure opens
Dynamic loop is not suitable for old transformer station.
Content of the invention
Based on this it is necessary to not be suitable for the problem of old transformer station for existing unsuccessful reason loop, provide a kind of failure
Starting-up later time and the method in start failure protection loop.
A kind of unsuccessful reason loop, including the first starting-up later time in parallel and the second starting-up later time, described first starts back
The first current start loop that road includes connecting, the first main transformer protection loop and for by switching disconnecting link start failure protection on the spot
First disconnecting link loop, described first main transformer protection loop includes the first protection starting-up later time of parallel connection and the one or three jump starts back
Road, the second current start loop that described second starting-up later time includes connecting, the second main transformer protection loop and for by the spot
Second disconnecting link loop of switching disconnecting link start failure protection, described second main transformer protection loop includes the second protection starting-up later time of parallel connection
Jump starting-up later time with the two or three, current start contact and failure general export's pressing plate form in described current start loop and close
System, protection act node and protection start failure protection pressing plate are formed and relation in described protection starting-up later time, and three jump startup contact
Jump start failure protection pressing plate with three and jump formation and relation in starting-up later time described three, meet described first starting-up later time when simultaneously
And/or the electric current criterion of described second starting-up later time, protection act criterion and disconnecting link position open fashionable, generate unsuccessful reason letter
Number.
A kind of method based on unsuccessful reason loop start failure loop as above, comprises the following steps：
Input signal is sent to described first starting-up later time and described second starting-up later time by positive supply；
Judge whether described first starting-up later time or the outfan of described second starting-up later time have described input signal output；
If so, then start and the corresponding bus in disconnecting link position in described first disconnecting link loop or described second disconnecting link loop
Failure loop.
Above-mentioned unsuccessful reason loop and the method in start failure protection loop, based on two sets of separate starting-up later time be
The judgement of the no criterion meeting start failure protection loop, often set starting-up later time includes the current start loop of series connection, main transformer protection returns
Road and disconnecting link loop, when electric current criterion, protection act criterion and the disconnecting link position simultaneously meeting arbitrarily a set of starting-up later time open into
When, need not open in female difference failure protection realize electric current criterion and disconnecting link position open into.Still retain disconnecting link and switch startup on the spot
The mode of failure, can meet the complicated requirement of old transformer station, reserve space for later transformation again.
Brief description
Fig. 1 is the structural representation of unsuccessful reason loop of the present invention first embodiment；
Fig. 2 is the circuit diagram of unsuccessful reason loop of the present invention second embodiment；
Fig. 3 is the schematic flow sheet of the method first embodiment in start failure protection loop of the present invention.
Specific embodiment
Refer to Fig. 1, Fig. 1 is the structural representation of unsuccessful reason loop of the present invention first embodiment.
The described unsuccessful reason loop of present embodiment includes the first starting-up later time 100 and second starting-up later time of parallel connection
200, the first starting-up later time 100 includes the first current start loop 110, the first main transformer protection loop 120 and be used for leading to connected
Cross the first disconnecting link loop 130 switching disconnecting link start failure protection on the spot, the first main transformer protection loop 120 includes the first protection of parallel connection
Starting-up later time the 121 and the 1st jumps starting-up later time 122, and the second starting-up later time 200 includes the second current start loop connected
210th, the second main transformer protection loop 220 and the second disconnecting link loop 230 for passing through switching disconnecting link start failure protection on the spot, second is main
Become the second protection starting-up later time the 221 and the 2nd 3 jump starting-up later time 222 that protective loop 220 includes parallel connection, current start contact
Formed and relation in current start loop 110 or 210 with failure general export's pressing plate, protection act node and protection start failure protection
Pressing plate is formed and relation in protection starting-up later time 121 or 221, and three jumps start contact and three jump start failure protection pressing plates are jumped three and opened
Formed and relation in dynamic loop 122 or 222, when the electricity meeting the first starting-up later time 100 and/or the second starting-up later time 200 simultaneously
Fashionable, generation unsuccessful reason signal is opened in stream criterion, protection act criterion and disconnecting link position.
Based on two sets of separate starting-up later time, unsuccessful reason loop described in present embodiment, is made whether that satisfaction opens
The judgement of the criterion in dynamic failure loop, often covers current start loop, main transformer protection loop and the disconnecting link that starting-up later time includes connecting
Loop, when electric current criterion, protection act criterion and the disconnecting link position simultaneously meeting arbitrarily a set of starting-up later time open fashionable, need not be
Open in female difference failure protection realize electric current criterion and disconnecting link position open into.Still retain the side that disconnecting link switches start failure protection on the spot
Formula, can meet the complicated requirement of old transformer station, reserve space for later transformation again.
Wherein, the first starting-up later time 100 and the second starting-up later time 200, is two sets of separate starting-up later time, receives phase
Same input signal is it is therefore preferable to be used for 220kV transformer switch unsuccessful reason loop.
Preferably, in the first starting-up later time 100, the input in the first current start loop 110 is used for receives input signal,
Outfan is connected with the input in the first main transformer protection loop 120, the outfan in the first main transformer protection loop 120 and the first disconnecting link
The input in loop 130 connects, and the outfan in the first disconnecting link loop 130 is used for being connected with failure loop, is easy to failure loop defeated
Send unsuccessful reason signal.
Preferably, when current start contact and failure general export's pressing plate put into, input signal could be through first
The input in current start loop 110 or the second current start loop 210 and outfan, meet in current start loop simultaneously
Form current start contact and failure general export's pressing plate of " with relation " in 110 or 210.Protection act contact and protecting
When start failure protection pressing plate puts into, input signal could protect starting-up later time 221 through the first protection starting-up later time 121 or second
Input and outfan, meet simultaneously protection starting-up later time 121 or 221 in formed " with relation " protection act contact and
Protection start failure protection pressing plate.When three jumps start contact and three jump start failure protection pressing plates inputs, input signal could be passed through
One or three jumps input and the outfan that starting-up later time the 122 or the 2nd 3 jumps starting-up later time 222, meets simultaneously and jumps startup three
Three jumps forming " with relation " in loop 122 or 222 start contact and three jump start failure protection pressing plates.The disconnecting link position that I is female or II is female
When putting contact, input signal could be through the input in the first disconnecting link loop 130 or the second disconnecting link loop 230 and output
End.In any one starting-up later time 100 or 200, only when input signal can be returned by disconnecting link loop, current start simultaneously
Road, main transformer protection loop（Protection starting-up later time and/or three jump starting-up later time）, meet simultaneously the first starting-up later time 100 and/or
Fashionable, generation unsuccessful reason signal is opened in the electric current criterion of the second starting-up later time 200, protection act criterion and disconnecting link position.
In one embodiment, the unsuccessful reason loop of the present invention may also include for the first starting-up later time 100 and
Two starting-up later time 200 transmits the positive supply of input signal, and described input signal is used for determining whether to meet the first starting-up later time 100
And/or the second electric current criterion of starting-up later time 200, protection act criterion and disconnecting link position open into.
Further, may also include the failure loop for receiving described unsuccessful reason signal, failure loop is opened with first
Non-ionizing energy loss cabinet is may also include, described failure loop is passed through described non-between dynamic loop 100 and/or the second starting-up later time 200
Electric quantity protective cabinet is connected with the first disconnecting link loop 130 and the second disconnecting link loop 230 respectively.
In another embodiment, the unsuccessful reason loop of the present invention may also include voltage switching device power supply air switch.
Further, in order to, situations such as preventing from occurring contact in the unsuccessful reason loop of the present invention and glue dead, wrong line, lead to
Cross following acceptance method to be tested in the unsuccessful reason loop of the present invention：
Check each contact action situation and each contact action when loop conducting situation, turn on each one by one and connect
Point, test only has this contact to turn on, and other contacts are all obstructed.
Check the effect in the loop of each pressing plate, when certain starting-up later time protection act contact is satisfied by condition, pass through
Throw and move back the effect that this pressing plate checked by pressing plate.
The action situation of inspection disconnecting link position contact, disconnecting link position and contact state correspond.
Specific experiment content is as shown in the table, and first set, second set of start failure protection loop are all carried out by following experiment content
Experiment：
Refering to Fig. 2, Fig. 2 is the circuit diagram of unsuccessful reason loop of the present invention second embodiment.
The unsuccessful reason loop of present embodiment and the difference of first embodiment are：Described current start contact and institute
State failure general export's pressing plate to be located in main transformer non-charge protection cabinet 410 or 510, described protection act contact and described protection start
Failure pressing plate is located in main transformer protection cabinet 421 or 521, and described three jump action connection points and described three jump start failure protection pressing plates uprise behaviour
Make in case 422 or 522, described first disconnecting link loop and/or described second disconnecting link loop be located at high side voltage a-b box 430 or
In 530.
As shown in Fig. 2 current start contact is SLQD1-1 and SLQD1-2, protection act contact is TJ, and three beat connects
Point is TJR, and failure general export's pressing plate is 8LP4 and 8LP5, and protection start failure protection pressing plate is 1LP31, and three jump start failure protection pressing plates are
1-4LP1 and 1-4LP2, I mother disconnecting link position contact is 1YQJ5, and II mother disconnecting link position contact is 2YQJ5.
Preferably, by checking the signal of telecommunication between 01 to 021A or 021B, can be determined whether to meet electric current criterion.By inspection
Test the signal of telecommunication between 021A to 023A or 021B to 023B, can be determined whether to meet protection act criterion.By verify 023A or
The signal of telecommunication between 023B to 024, can be determined whether that meeting I mother disconnecting link position puts into.By verifying between 023A or 023B to 025
The signal of telecommunication, can be determined whether that meeting II mother disconnecting link position puts into.
Refer to Fig. 3, Fig. 3 is method first embodiment party based on above-mentioned unsuccessful reason loop start failure loop for the present invention
The schematic flow sheet of formula.
The method in the described start failure protection loop of present embodiment comprises the following steps：
Step 301, sends input signal by positive supply to described first starting-up later time and described second starting-up later time.
Step 302, judges whether described first starting-up later time or the outfan of described second starting-up later time have described input
Signal output.
Step 303, if so, then starts and the disconnecting link position pair in described first disconnecting link loop or described second disconnecting link loop
The failure loop of the bus answered.
The method in the start failure protection loop described in present embodiment, is made whether based on two sets of separate starting-up later time
Meet the judgement of the criterion in start failure protection loop, often set starting-up later time includes current start loop, the main transformer protection loop connected
With disconnecting link loop, when electric current criterion, protection act criterion and the disconnecting link position simultaneously meeting arbitrarily a set of starting-up later time open fashionable,
Need not open in female difference failure protection realize electric current criterion and disconnecting link position open into.Still retain disconnecting link and switch start failure protection on the spot
Mode, the complicated requirement of old transformer station can be met, reserved space for later transformation again.
Embodiment described above only have expressed the several embodiments of the present invention, and its description is more concrete and detailed, but simultaneously
Therefore the restriction to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, some deformation can also be made and improve, these broadly fall into the guarantor of the present invention
Shield scope.Therefore, the protection domain of patent of the present invention should be defined by claims.
Claims (10)
1. a kind of unsuccessful reason loop is it is characterised in that include the first in parallel starting-up later time and the second starting-up later time, and described the
One starting-up later time include connect the first current start loop, the first main transformer protection loop and for by the spot switch disconnecting link open
First disconnecting link loop of dynamic failure, described first main transformer protection loop includes the first protection starting-up later time and the one or three jump of parallel connection
Starting-up later time, described second starting-up later time includes the second current start loop, the second main transformer protection loop and be used for leading to connected
Cross the second disconnecting link loop switching disconnecting link start failure protection on the spot, the second protection that described second main transformer protection loop includes parallel connection is opened
Dynamic loop and the two or three jump starting-up later time, current start contact and failure general export's pressing plate are formed in described current start loop
With relation, protection act contact and protection start failure protection pressing plate formation and relation in described protection starting-up later time, three jump startup
Contact and three is jumped start failure protection pressing plate and is jumped formation and relation in starting-up later time described three, starts back when meeting described first simultaneously
Fashionable, generation unsuccessful reason letter is opened in the electric current criterion of road and/or described second starting-up later time, protection act criterion and disconnecting link position
Number.
2. unsuccessful reason loop according to claim 1 is it is characterised in that described current start contact and described failure are total
Output clamping is located in main transformer non-charge protection cabinet.
3. unsuccessful reason loop according to claim 1 is it is characterised in that described protection act contact and described protection are opened
Dynamic failure pressing plate is located in main transformer protection cabinet.
4. unsuccessful reason loop according to claim 1 is it is characterised in that described three jumps start contact and described three jumps are opened
Dynamic failure pressing plate is located in control box.
5. unsuccessful reason loop according to claim 1 is it is characterised in that described first disconnecting link loop and/or described
Two disconnecting link loops are located in high side voltage a-b box.
6. unsuccessful reason loop according to claim 1 is it is characterised in that also include for described first starting-up later time
Transmit the positive supply of input signal with described second starting-up later time, described input signal is used for determining whether that meeting described first opens
The electric current criterion of dynamic loop and/or described second starting-up later time, protection act criterion and disconnecting link position open into.
7. unsuccessful reason loop according to claim 1 is it is characterised in that also include for receiving described unsuccessful reason letter
Number failure loop.
8. unsuccessful reason loop according to claim 7 is it is characterised in that also include non-ionizing energy loss cabinet, described failure
Loop is connected with described first disconnecting link loop and/or described second disconnecting link loop respectively by described non-ionizing energy loss cabinet.
9. unsuccessful reason loop as claimed in any of claims 1 to 8 is it is characterised in that also include voltage switching
Installation's power source air switch.
10. a kind of method based on unsuccessful reason loop start failure loop as in one of claimed in any of claims 1 to 9,
It is characterized in that, comprise the following steps：
Input signal is sent to described first starting-up later time and described second starting-up later time by positive supply；
Judge whether described first starting-up later time or the outfan of described second starting-up later time have described input signal output；
If so, then start the mistake with the corresponding bus in disconnecting link position in described first disconnecting link loop or described second disconnecting link loop
Clever 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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| CN103840553A CN103840553A (en) | 2014-06-04 |
| CN103840553B true CN103840553B (en) | 2017-02-15 |
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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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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| 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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| JP2011055622A (en) * | 2009-09-01 | 2011-03-17 | Panasonic Corp | Ih cooking heater, method for controlling the ih cooking heater and program |
| CN102280868B (en) * | 2011-08-05 | 2014-03-19 | 国电南瑞南京控制系统有限公司 | Method for preventing override trip of mine power supply system |
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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. |
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