CN108462145A - A kind of line feed terminals and its circuit-breaker switching on-off control method - Google Patents
A kind of line feed terminals and its circuit-breaker switching on-off control method Download PDFInfo
- Publication number
- CN108462145A CN108462145A CN201810157270.1A CN201810157270A CN108462145A CN 108462145 A CN108462145 A CN 108462145A CN 201810157270 A CN201810157270 A CN 201810157270A CN 108462145 A CN108462145 A CN 108462145A
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- CN
- China
- Prior art keywords
- auxiliary contact
- separating brake
- breaker
- setting time
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/05—Details with means for increasing reliability, e.g. redundancy arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/021—Details concerning the disconnection itself, e.g. at a particular instant, particularly at zero value of current, disconnection in a predetermined order
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- Emergency Protection Circuit Devices (AREA)
Abstract
The present invention relates to a kind of line feed terminals and its circuit-breaker switching on-off control methods, when there is circuit-breaker switching on-off demand, no longer detect the state of auxiliary contact, but directly export corresponding divide-shut brake instruction, and the variation of auxiliary contact is detected in setting time, when generating state changes auxiliary contact within the time, then continue to output corresponding divide-shut brake instruction, until separating brake is in place or when in-place closing, stop exporting corresponding separating brake or reclosing command, avoids breaker tripping problem caused by the misconnection because of auxiliary contact in the prior art.When more than setting time auxiliary contact state still without changing, judge that the auxiliary contact have damaged, stop divide-shut brake output order in time at this time, prevents from leading to export always the problem of divide-shut brake instructs because not knowing that auxiliary contact have damaged in the prior art.
Description
Technical field
The invention belongs to Relay Protection Technology in Power System fields, and in particular to a kind of line feed terminals and its breaker division
Lock control method.
Background technology
Traditional circuit-breaker switching on-off is controlled by line feed terminals FTU, first passes through the state for judging auxiliary contact, is judged
Breaker state in which, if to export combined floodgate, auxiliary contact instruction breaker, which is in, divides position, then exports reclosing command, no
It does not export then；Similarly, before exporting separating brake, judge that auxiliary contact indicate that breaker whether in position is closed, divides in closing position and then exporting
Lock instructs, and separating brake is not exported then in a point position.
It is detected after output reclosing command and closes position signal, then stop exporting reclosing command；Similarly, it is examined after the instruction of output separating brake
A point position signal is measured, then stops exporting separating brake instruction.In this way, if auxiliary contact wrong, i.e. breaker assist when being in separating brake
Contact closure, instruction breaker, which is in, closes position, and it is disconnected in auxiliary contact when closing a floodgate not export reclosing command or breaker at this time
It opens, instruction short circuit is not exported separating brake instruction, will cause not exporting breaker tripping at this time in dividing position, and when power transmission closes a floodgate failure,
Serious economic loss is caused, is made a very bad impression.
In addition, when auxiliary contact damage, if the auxiliary contact damaged at this time are closed, instruction breaker, which is in, closes position,
There are output separating brakes after when separating brake demand, detecting the state of auxiliary contact to instruct for breaker, and auxiliary contact have damaged at this time,
A point position signal will be can't detect always after output separating brake instruction, be made output order overlong time, be led to operation failure.Accordingly
, when the auxiliary contact of damage disconnect, instruction breaker, which is in, divides position, and in breaker there are when combined floodgate demand, output combined floodgate refers to
To can't detect always after order close position signal equally make output order overlong time, lead to operation failure, influence power supply can
By property.
Invention content
The object of the present invention is to provide a kind of line feed terminals and its circuit-breaker switching on-off control methods, for solving existing skill
Auxiliary contact misconnection causes breaker tripping and auxiliary contact to damage, can't detect after output divide-shut brake instruction point in art
The problem of closing position signal.
To solve the problems, such as that auxiliary contact misconnection causes breaker tripping, the present invention to propose a kind of breaker of line feed terminals
Divide-shut brake control method, including following methods scheme：
Method scheme one, includes the following steps：
When breaker has separating brake or combined floodgate request, separating brake or reclosing command are directly exported, detection is auxiliary in setting time
It helps whether contacts status changes, if so, when breaker open operation is in place or when the in-place closing, stops exporting corresponding separating brake
Or reclosing command.
The present invention no longer detects the state of auxiliary contact, but directly the output phase is answered when there is circuit-breaker switching on-off demand
Divide-shut brake instruction, and in setting time detect auxiliary contact variation, when auxiliary contact within the time generating state become
When change, then continue to output the instruction of corresponding divide-shut brake, until separating brake is in place or when in-place closing, stop exporting corresponding separating brake or
Reclosing command avoids breaker tripping problem caused by the misconnection because of auxiliary contact in the prior art.
Method scheme two, on the basis of method scheme one, when more than the setting time auxiliary contact state still without
Variation, judges that the auxiliary contact have damaged, and stops exporting corresponding separating brake or reclosing command, and reflect auxiliary contact in time
Damaged condition prevents the economic loss for causing bigger.
To solve the problems, such as auxiliary contact damage, can't detect division position signal after divide-shut brake, the present invention proposes a kind of
The circuit-breaker switching on-off control method of line feed terminals, including following methods scheme：
When breaker has separating brake or combined floodgate request, separating brake or reclosing command are directly exported, detection is auxiliary in setting time
It helps whether contacts status changes, still without variation, stops exporting corresponding when more than the setting time auxiliary contact state
Separating brake or reclosing command.
The present invention no longer detects the state of auxiliary contact, but directly the output phase is answered when there is circuit-breaker switching on-off demand
Divide-shut brake, and in setting time detect auxiliary contact variation, when more than setting time auxiliary contact state still without hair
When changing, judge that the auxiliary contact have damaged, stops divide-shut brake output in time at this time, prevent in the prior art because not knowing
Auxiliary contact have damaged the problem of causing to export divide-shut brake always.
To solve the problems, such as that auxiliary contact misconnection causes breaker tripping, the present invention also to propose a kind of control breaker division
The line feed terminals of lock, including following terminal scheme：
Terminal scheme one, including processor, for executing the instruction for realizing following steps：
When breaker has separating brake or combined floodgate request, separating brake or reclosing command are directly exported, detection is auxiliary in setting time
It helps whether contacts status changes, if so, when breaker open operation or in-place closing, stops exporting corresponding separating brake or closing a floodgate referring to
It enables.
The terminal prevents the tripping problem of breaker by the variation of detection auxiliary contact state.
Terminal scheme two, on the basis of terminal scheme one, when more than the setting time auxiliary contact state still without
Variation stops exporting corresponding separating brake or reclosing command.
To solve the problems, such as auxiliary contact damage, can't detect division position signal after divide-shut brake, the present invention also proposes one
The line feed terminals of kind control circuit-breaker switching on-off, including following terminal scheme：
Including processor, for executing the instruction for realizing following steps：
When breaker has separating brake or combined floodgate request, separating brake or reclosing command are directly exported, detection is auxiliary in setting time
It helps whether contacts status changes, still without variation, stops exporting corresponding when more than the setting time auxiliary contact state
Separating brake or reclosing command.
The terminal is not changed by detecting auxiliary contact state in setting time, and control stops output divide-shut brake and refers to
It enables.
Description of the drawings
Fig. 1 is a kind of circuit-breaker switching on-off control method flow chart of line feed terminals of the present invention.
Specific implementation mode
The specific implementation mode of the present invention is further described below in conjunction with the accompanying drawings.
Embodiment one：
A kind of circuit-breaker switching on-off control method of line feed terminals of the present invention, includes the following steps：
When breaker has separating brake or combined floodgate request, separating brake or reclosing command are directly exported, detection is within the set time
Whether auxiliary contact state changes, if so, when separating brake is in place or when in-place closing, stops exporting corresponding separating brake or closing a floodgate referring to
It enables.
The present invention no longer detects the state of auxiliary contact, but directly the output phase is answered when there is circuit-breaker switching on-off demand
Divide-shut brake, and in setting time detect auxiliary contact variation, when auxiliary contact within the time generating state change when,
The instruction of corresponding divide-shut brake is then continued to output, until separating brake is in place or when in-place closing, stops exporting corresponding separating brake or combined floodgate
Instruction, avoids breaker tripping problem caused by the misconnection because of auxiliary contact in the prior art.
When, still without variation, judging that the auxiliary contact have damaged more than the setting time auxiliary contact state, stop
Corresponding separating brake or reclosing command are exported, and reflects the damaged condition of auxiliary contact in time, prevents the economic loss for causing bigger.
The present invention also proposes the circuit-breaker switching on-off control method of another line feed terminals, and steps are as follows：
When breaker has separating brake or combined floodgate request, separating brake or reclosing command are directly exported, detection is auxiliary in setting time
It helps whether contacts status changes, still without variation, stops exporting corresponding when more than the setting time auxiliary contact state
Separating brake or reclosing command.
The present invention no longer detects the state of auxiliary contact, but directly the output phase is answered when there is circuit-breaker switching on-off demand
Divide-shut brake instruction, and in setting time detect auxiliary contact variation, do not have still when more than setting time auxiliary contact state
When changing, judge that the auxiliary contact have damaged, stops divide-shut brake output order in time at this time, prevent in the prior art
Lead to export always the problem of divide-shut brake instructs because not knowing that auxiliary contact have damaged.
Based on above-mentioned circuit-breaker switching on-off control method, the feeder line that the present invention proposes two kinds of control circuit-breaker switching on-offs is whole
End, one of which line feed terminals include processor, for executing the instruction for realizing following steps：
When breaker has separating brake or combined floodgate request, separating brake or reclosing command are directly exported, detection is auxiliary in setting time
It helps whether contacts status changes, if so, when breaker open operation or in-place closing, stops exporting corresponding separating brake or closing a floodgate referring to
It enables.
Another line feed terminals include processor, for executing the instruction for realizing following steps：
When breaker has separating brake or combined floodgate request, separating brake or reclosing command are directly exported, detection is auxiliary in setting time
It helps whether contacts status changes, still without variation, stops exporting corresponding when more than the setting time auxiliary contact state
Separating brake or reclosing command.
Embodiment two：
The circuit-breaker switching on-off control method of a kind of line feed terminals of the present invention, as shown in Figure 1, being as follows：
(1) start to have detected whether divide-shut brake output request after electricity operation on；
(2) there is separating brake request, then export separating brake；No separating brake request, then detected whether request of closing a floodgate；
(3) after exporting separating brake, timing, and detect whether auxiliary contact state changes；
(4) auxiliary contact state changes, and illustrates that auxiliary contact do not damage, and separating brake exports in place, and it is defeated to stop separating brake
Go out；
(5) timing is arrived, and auxiliary contact do not change, illustrates that auxiliary contact damage, and stops separating brake output；
(6) it is asked when the middle detection of step (2) has to close a floodgate, then exports combined floodgate, timing, and detect whether auxiliary contact state is sent out
Changing；
(7) auxiliary contact state changes, and illustrates that auxiliary contact do not damage, and closes a floodgate output in place, stops closing a floodgate defeated
Go out；
(8) timing is arrived, and auxiliary contact do not change, is illustrated that auxiliary contact damage, is stopped output of closing a floodgate.
The present invention relates to MV distribution systems protection for feed line units, and circuit-breaker switching on-off is controlled more particularly, to by FTU
Device, prevent because auxiliary contact damage cause breaker operator failure method and apparatus, it is above-mentioned because of breaker for solving
Line fault caused by operation failure and breaker tripping need power transmission and breaker closing the problem of failing.
The present invention direct the output phase when there is divide-shut brake demand answers divide-shut brake to instruct, and auxiliary contact are detected during output
State change then illustrates that auxiliary contact do not damage, and operates successfully, stops output；Time-out does not detect auxiliary during output
The variation for helping contacts status illustrates that auxiliary contact damage, stops output；It effectively prevents causing because of auxiliary contact misconnection or damage
Circuit-breaker switching on-off fails, and improves the reliability of power supply.
The foregoing is merely the preferred embodiment of the present invention, are not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.Any modification made by all within the spirits and principles of the present invention,
Equivalent replacement, improvement etc., should be included within scope of the presently claimed invention.
Claims (6)
1. a kind of circuit-breaker switching on-off control method of line feed terminals, which is characterized in that include the following steps：
When breaker has separating brake or combined floodgate request, separating brake or reclosing command are directly exported, detection assists tactile in setting time
Whether dotted state changes, if so, when breaker open operation is in place or when the in-place closing, stops exporting corresponding separating brake or conjunction
Lock instructs.
2. the circuit-breaker switching on-off control method of line feed terminals according to claim 1, which is characterized in that when more than described
Setting time auxiliary contact state stops exporting corresponding separating brake or reclosing command still without variation.
3. a kind of circuit-breaker switching on-off control method of line feed terminals, which is characterized in that include the following steps：
When breaker has separating brake or combined floodgate request, separating brake or reclosing command are directly exported, detection assists tactile in setting time
Whether dotted state changes, and, still without variation, stops exporting corresponding separating brake when more than the setting time auxiliary contact state
Or reclosing command.
4. a kind of line feed terminals of control circuit-breaker switching on-off, which is characterized in that including processor, following step is realized for executing
Rapid instruction：
When breaker has separating brake or combined floodgate request, separating brake or reclosing command are directly exported, detection assists tactile in setting time
Whether dotted state changes, if so, when breaker open operation or in-place closing, stops exporting corresponding separating brake or reclosing command.
5. the line feed terminals of control circuit-breaker switching on-off according to claim 4, which is characterized in that when more than the setting
Time auxiliary contact state stops exporting corresponding separating brake or reclosing command still without variation.
6. a kind of line feed terminals of control circuit-breaker switching on-off, which is characterized in that including processor, following step is realized for executing
Rapid instruction：
When breaker has separating brake or combined floodgate request, separating brake or reclosing command are directly exported, detection assists tactile in setting time
Whether dotted state changes, and, still without variation, stops exporting corresponding separating brake when more than the setting time auxiliary contact state
Or reclosing command.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810157270.1A CN108462145A (en) | 2018-02-24 | 2018-02-24 | A kind of line feed terminals and its circuit-breaker switching on-off control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810157270.1A CN108462145A (en) | 2018-02-24 | 2018-02-24 | A kind of line feed terminals and its circuit-breaker switching on-off control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108462145A true CN108462145A (en) | 2018-08-28 |
Family
ID=63216583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810157270.1A Pending CN108462145A (en) | 2018-02-24 | 2018-02-24 | A kind of line feed terminals and its circuit-breaker switching on-off control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108462145A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114019872A (en) * | 2021-11-05 | 2022-02-08 | 中冶赛迪电气技术有限公司 | Circuit breaker opening and closing time sequence and fault judgment logic control system thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202872319U (en) * | 2012-09-25 | 2013-04-10 | 江西铜业股份有限公司 | Burnout-proof automatic protection device of a high voltage circuit breaker closing coil |
| CN203572929U (en) * | 2013-11-05 | 2014-04-30 | 国网山东省电力公司青岛供电公司 | Breaker monitoring device |
-
2018
- 2018-02-24 CN CN201810157270.1A patent/CN108462145A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202872319U (en) * | 2012-09-25 | 2013-04-10 | 江西铜业股份有限公司 | Burnout-proof automatic protection device of a high voltage circuit breaker closing coil |
| CN203572929U (en) * | 2013-11-05 | 2014-04-30 | 国网山东省电力公司青岛供电公司 | Breaker monitoring device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114019872A (en) * | 2021-11-05 | 2022-02-08 | 中冶赛迪电气技术有限公司 | Circuit breaker opening and closing time sequence and fault judgment logic control system thereof |
| CN114019872B (en) * | 2021-11-05 | 2023-11-14 | 中冶赛迪电气技术有限公司 | Circuit breaker opening and closing time sequence and fault judgment logic control system thereof |
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| PB01 | Publication | ||
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Application publication date: 20180828 |