CN106848905A - The operating method of circuit breaker short circuit fault trip automatic blocking - Google Patents
The operating method of circuit breaker short circuit fault trip automatic blocking Download PDFInfo
- Publication number
- CN106848905A CN106848905A CN201710143569.7A CN201710143569A CN106848905A CN 106848905 A CN106848905 A CN 106848905A CN 201710143569 A CN201710143569 A CN 201710143569A CN 106848905 A CN106848905 A CN 106848905A
- Authority
- CN
- China
- Prior art keywords
- operating handle
- grounding switch
- switch operating
- closing
- line side
- 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.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3275—Fault detection or status indication
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Breakers (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The present invention relates to a kind of technical field of Substation control.The closing frequencies that are recorded in by detecting whether line side is powered, while reading counting module simultaneously compare it with closing frequencies higher limit, when the closing frequencies recorded only when line side is not charged, in counting module are provided simultaneously with less than higher limit the two conditions, electromagnetic lock discharges grounding switch operating handle, it is operated combined floodgate；Otherwise grounding switch operating handle locking is prevented it from closing a floodgate by electromagnetic lock.The mechanism realizes the powered prompting in line side, closing frequencies of monitoring breaker simultaneously, forced blocking line side ground knife function, thoroughly eliminates safe hidden trouble when online trackside is powered and safety closing number of times of breaker is finished, ensure person isolation, meet breaker safe job requirement.
Description
Technical field
The present invention relates to Substation control technical field, and in particular to a kind of circuit breaker short circuit fault trip automatic blocking
Operating method.
Background technology
The XGN switch cubicles that 10kV power networks are commonly used, i.e., box fixed indoor ac metal closing switch gear, its line
Trackside is powered, without electrification display and mechanical latching forcing device.The powered uncertainty in line side, circuit and switch cabinet equipment are examined
When repairing accident treatment, line side electrical ground disconnecting link remains to close, and in operation and maintenance process, there is safety to the person and equipment
Hidden danger, it is necessary to carry out the transformation of XGN switch cabinet electrified displays positive locking, technically eliminate accident potential.In addition, electric power sets
The operation safety requirements applied：1st, when the rupturing capacity of breaker is less than busbar short-circuit capacity, reclosing is out of service；2nd, breaker
Fault trip number of times exceedes regulation, should be out of service by reclosing；3rd, circuit has livewire work, should be out of service by reclosing.
《Shan Dongdi counties electric power system dispatching control rule of management》It is required that：It is on duty when switch allows the blocking number of stoppages to be less than twice
Monitor, plant stand person on duty should claim to administration scheduling, disable the reclosing of the switch.This means that：Whether perform
Reclosing, first will see whether line side failure excludes, and whether second will also see circuit breaker failure tripping times in Safe Times
Within.But existing power switch control cabinet is not provided with circuit breaker trip number of times and lifetime monitoring apparatus, can only be using artificial
The method statistic tripping times of record, are made whether to meet the instruction of combined floodgate condition.Workload is big, easily produces human error.
My another Chinese patent《Switch cabinet electrified display positive locking mechanism》, the patent No.：2015201869211.It passes through
Electromagnetic lock on grounding switch operating handle realizes electromagnetic lock blocked line side ground knife function, eliminates safe hidden trouble,
Ensure person isolation, technically eliminate accident factor.But due to lacking circuit breaker trip number of times and lifetime monitoring apparatus, still
The predicament of personal monitoring's circuit breaker trip number of times cannot be broken away from.
The content of the invention
It is an object of the invention to provide a kind of breaker monitored with the breaker life-span and ensure personal isolation features
The operating method of short trouble tripping operation automatic blocking.
In order to reach object above, the technical solution adopted in the present invention is as follows：
Circuit breaker short circuit fault trip self-locking gear of the present invention includes control cabinet, is arranged on before control cabinet
Guidance panel, the disconnecting switch in switch board body and breaker, are provided with grounding switch operating handle on guidance panel,
Voltage sensor is installed in switch board line side, the output end shunt voltage display and electromagnetic lock of the voltage sensor,
The voltage display and electromagnetic lock be fixedly mounted on guidance panel, positioned at the side of grounding switch operating handle, the electricity
Magnetic padlock includes housing, the magnet coil being fixedly mounted in housing, the drive shaft being inserted into magnet coil inner core, the driving
The two ends of axle are installed with moving armature and spring base respectively, and return bullet is provided between the spring base and the inwall of housing
Spring, the front end of the drive shaft matches with the lockhole being arranged on the wall of grounding switch operating handle side, the grounding switch behaviour
Make to be provided with the position sensor for monitoring its location status on handle, the magnet coil 6 in the electromagnetic lock passes through the first relay
The controlled end of device is connected to working power, and the control end of the first relay is connected to the output end of voltage sensor, described first
The controlled end of relay is parallel with the controlled end of the second relay, and the control end of second relay is connected to trip count electricity
The output end on road, the output end of position sensor is connected to the input of trip count circuit；The trip count circuit includes
For measuring the counting module of number of times of the grounding switch operating handle in closing success position, for storing the closing frequencies upper limit
It is worth and by the setting of the higher limit and the numeric ratio pair of input and memory module, for artificial input data and zeros data
Human-computer interaction module, the output end of the position sensor is connected to the input of counting module, and the output end of counting module connects
The input set with memory module is connect, the control end that the first relay is connected to the output end of memory module is set, it is described
Human-computer interaction module carries and is connected to the reset signal end of counting module, is connected to the closing frequencies upper limit set with memory module
Value input.
The operating method of above-mentioned circuit breaker short circuit fault trip self-locking gear, comprises the following steps：
A) scrap build, voltage sensor is installed in switch board line side；On the grounding switch operating handle of control breaker
The position sensor and the electromagnetic lock for locking grounding switch operating handle for detecting its location status are installed；Using man-machine interaction
Counting module is reset and is input into closing frequencies higher limit with memory module to setting simultaneously by module, and following walking then is performed successively
Suddenly；
B）The signal of reading position sensor output, such as signal represents that grounding switch operating handle is changed into conjunction from gate-dividing state
Lock state, then the numerical value increase one of counting module；Such as the signal represents that grounding switch operating handle is to continue "on" position, meter
Digital-to-analogue block keeps constant；Such as the signal represents that grounding switch operating handle is to continue gate-dividing state, then be transferred to following steps；
C) judge whether line side powered by voltage sensor, at the same read counting module numerical value and by it with set and deposit
The closing frequencies higher limit stored in storage module is compared, and the numerical value only when line side is not charged, in counting module is less than closing a floodgate
When number of times higher limit the two conditions are provided simultaneously with, electromagnetic lock release grounding switch operating handle allows it to operate combined floodgate；It is no
Then grounding switch operating handle locking is prevented it from closing a floodgate by electromagnetic lock, by man-machine friendship after the breaker for more renewing
The numerical value of counting module is reset or is input into new closing frequencies higher limit with memory module to setting by mutual module, is then return to
Step B.
After adopting the above technical scheme, the positive locking mechanism realizes the powered information alert in line side, and monitor simultaneously disconnected
The closing frequencies of road device, force to close when online trackside is powered and safety closing number of times of breaker is finished using electromagnetic lock
Locking wire trackside ground knife function, thoroughly eliminates safe hidden trouble, it is ensured that person isolation, meets breaker safe job requirement.
Brief description of the drawings
Fig. 1 is the circuit theory diagrams of one embodiment of the invention.
Fig. 2 is the structure principle chart of electromagnetic lock.
Fig. 3 is the theory diagram of trip count circuit.
Specific embodiment
As shown in Figure 1 and Figure 2, circuit breaker short circuit fault trip self-locking gear of the present invention includes control cabinet, sets
The guidance panel 1 before control cabinet, the disconnecting switch in switch board body and breaker are put, is set on guidance panel 1
Grounding switch operating handle 2 is equipped with, a, b, c are provided with voltage sensor 3 in switch board line side, and the voltage sensor 3 can
To use voltage transformer, it would however also be possible to employ the step-down transformer of other forms.The output end of the voltage sensor 3 electricity in parallel
Pressure display 4 and electromagnetic lock, the primary winding of voltage sensor 3 are connected to line side, and secondary coil is connected to voltage display 4 and electricity
Magnetic padlock, voltage display 4 uses indicator lamp or LED display instruction line trackside electriferous state, when line side is powered, electricity
The pressure indicator lamp of display 4 is lighted, while for electromagnetic lock provides driving power supply.The voltage display 4 and electromagnetic lock are fixedly mounted
On guidance panel 1, positioned at the side of grounding switch operating handle 2, the electromagnetic lock includes housing 5, is fixedly mounted on housing 5
Interior magnet coil 6, the drive shaft 7 being inserted into the inner core of magnet coil 6, the two ends of the drive shaft 7 are installed with respectively
Return spring is provided between the inwall of moving armature 71 and spring base 72, the spring base 72 and housing 5, the drive shaft 7
Front end matches with the lockhole being arranged on the side wall of grounding switch operating handle 2.Magnet coil 6 produces magnetic field when obtaining electric,
Promote moving armature 71 and drive shaft 7 to move, during drive shaft 7 inserted into the lockhole 22 of the side wall of grounding switch operating handle 2, will be grounded
The locking of switch operation handle 2, prevents it from closing a floodgate.Conversely, when 6 dead electricity of magnet coil, in the presence of return spring,
Drive shaft 7 exits lockhole 22, and grounding switch operating handle 2 can freely realize closing operation.
The position sensor 21 for monitoring its location status, the position sensing are provided with the grounding switch operating handle 2
Device 21 can express different position relationships using devices such as microswitch, travel switch, slide rheostats.In the electromagnetic lock
Magnet coil 6 working power is connected to by the controlled end of the first relay 9, the control end of the first relay 9 is connected to electricity
The output end of pressure sensor 3, in the case that the output end of voltage sensor 3 is powered, the first relay 9 is closed, and connects electromagnetic wire
The power supply of circle 6, acts electromagnetic lock.The controlled end of first relay 9 is parallel with the controlled end of the second relay 92, described
The control end of the second relay 92 is connected to the output end of trip count circuit 8, and the output signal of trip count circuit 8 can be controlled
Make the action of the second relay 92.The output end of position sensor 21 is connected to the input of trip count circuit 8；The tripping operation
Counting circuit 8 is including being used to measure the counting module 81 of number of times of the grounding switch operating handle 2 in closing success position, being used for
Storage closing frequencies higher limit and by the setting of the higher limit and the numeric ratio pair of input and memory module 82, for manually defeated
Enter the human-computer interaction module 83 of data and zeros data, the output end of the position sensor 21 is connected to the defeated of counting module 81
Enter end, the output end connect setting of counting module 81 and the input of memory module 82, the output end with memory module 82 is set
Be connected to the control end of the first relay 9, the human-computer interaction module 83 carry be connected to counting module 81 reset signal end,
It is connected to the closing frequencies higher limit input set with memory module 82.
The feed motion each time of the monitoring grounding switch operation handle 2 of position sensor 21, and count, when closing frequencies are small
When setting with closing frequencies higher limit in memory module 82, the second relay 92 is failure to actuate, and the action of electromagnetic lock is only
Controlled by the first relay 9；When closing frequencies reach set with memory module 82 in closing frequencies higher limit when, jump
The output control signal of lock counting circuit 8 closes the second relay 92, now regardless of the working condition of the first relay 9,
Electromagnetic lock makes it to close a floodgate all the time by the locking of grounding switch operating handle 2.
The operating method of above-mentioned circuit breaker short circuit fault trip self-locking gear, comprises the following steps：
A) scrap build, voltage sensor is installed in switch board line side；On the grounding switch operating handle 2 of control breaker
The position sensor 21 and the electromagnetic lock for locking grounding switch operating handle 2 for detecting its location status are installed；Using man-machine
Counting module 81 is reset and is input into closing frequencies higher limit to setting and memory module 82 simultaneously by interactive module 83, is then held successively
Row following steps；
B）The signal of the output of reading position sensor 21, such as signal represent that grounding switch operating handle 2 changes from gate-dividing state
It is "on" position, then the numerical value of counting module 81 increases one；Such as the signal represents that grounding switch operating handle 2 is lasting combined floodgate
State, counting module 81 keeps constant；Such as the signal represent grounding switch operating handle 2 be continue gate-dividing state, then be transferred to as
Lower step；
C) judge whether line side powered by voltage sensor, at the same read counting module 81 numerical value and by it with set with
The closing frequencies higher limit stored in memory module 82 is compared, and the numerical value only when line side is not charged, in counting module 81 is small
When closing frequencies higher limit the two conditions are provided simultaneously with, electromagnetic lock release grounding switch operating handle 2 operates it
Close a floodgate；Otherwise the locking of grounding switch operating handle 2 is prevented it from closing a floodgate by electromagnetic lock, is led to after the breaker for more renewing
Human-computer interaction module 83 is crossed to reset the numerical value of counting module 81 or be input into new closing frequencies with memory module 82 to setting
Higher limit, is then return to step B.
Claims (1)
1. the operating method of circuit breaker short circuit fault trip automatic blocking, it is characterised in that comprise the following steps：
A) scrap build, voltage sensor is installed in switch board line side（3）；In the grounding switch operating handle of control breaker
（2）It is upper that the position sensor for detecting its location status is installed（21）With for locking grounding switch operating handle（2）Electromagnetic lock,
By voltage sensor（3）Output end shunt voltage display（4）And electromagnetic lock；Using human-computer interaction module（83）By count module
Block（81）Reset simultaneously to setting and memory module（82）Input closing frequencies higher limit, then performs following steps successively；
B）Reading position sensor（21）The signal of output, such as signal represents grounding switch operating handle（2）From gate-dividing state
It is changed into "on" position, then counting module（81）Numerical value increase one；Such as the signal represents grounding switch operating handle（2）For
Continue "on" position, counting module（81）Keep constant；Such as the signal represents grounding switch operating handle（2）It is lasting separating brake shape
State, then be transferred to following steps；
C) judge whether line side is powered by voltage sensor, while reading counting module（81）Numerical value and by it and setting
With memory module（82）The closing frequencies higher limit of middle storage is compared, only when line side is not charged, counting module（81）In
When numerical value is provided simultaneously with less than closing frequencies higher limit the two conditions, electromagnetic lock release grounding switch operating handle（2）, make it
Combined floodgate can be operated；Otherwise electromagnetic lock is by grounding switch operating handle（2）Locking, prevents it from closing a floodgate, disconnected until what is more renewed
Pass through human-computer interaction module after the device of road（83）By counting module（81）Numerical value reset or to set and memory module（82）
The new closing frequencies higher limit of input, is then return to step B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710143569.7A CN106848905B (en) | 2015-10-28 | 2015-10-28 | The operating method of circuit breaker short circuit fault trip self-locking gear |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510709199.XA CN105305286B (en) | 2015-10-28 | 2015-10-28 | Circuit breaker short circuit fault trip self-locking gear and operating method |
| CN201710143569.7A CN106848905B (en) | 2015-10-28 | 2015-10-28 | The operating method of circuit breaker short circuit fault trip self-locking gear |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510709199.XA Division CN105305286B (en) | 2015-10-28 | 2015-10-28 | Circuit breaker short circuit fault trip self-locking gear and operating method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106848905A true CN106848905A (en) | 2017-06-13 |
| CN106848905B CN106848905B (en) | 2019-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710143569.7A Expired - Fee Related CN106848905B (en) | 2015-10-28 | 2015-10-28 | The operating method of circuit breaker short circuit fault trip self-locking gear |
| CN201510709199.XA Expired - Fee Related CN105305286B (en) | 2015-10-28 | 2015-10-28 | Circuit breaker short circuit fault trip self-locking gear and operating method |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510709199.XA Expired - Fee Related CN105305286B (en) | 2015-10-28 | 2015-10-28 | Circuit breaker short circuit fault trip self-locking gear and operating method |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN106848905B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108169670A (en) * | 2018-02-01 | 2018-06-15 | 贵州电网有限责任公司 | A kind of Anti-jump Circuit of Breaker automatic test equipment and test method |
| CN108666920A (en) * | 2018-07-13 | 2018-10-16 | 河南森源电气股份有限公司 | A kind of PT hand car interlock circuit, PT hand car and metering cabinet |
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| JPH10144170A (en) * | 1996-11-11 | 1998-05-29 | Kubota Corp | Control panel with wrong operation preventive function |
| CN103579994A (en) * | 2012-08-03 | 2014-02-12 | 施耐德电器工业公司 | Control device and method with over/under-voltage protection and automatic reset functions |
| CN203941273U (en) * | 2014-07-02 | 2014-11-12 | 苏州上电科电气设备有限公司 | A kind of isolating switch temperature rise, wink are moved action test device |
| CN204441786U (en) * | 2015-03-31 | 2015-07-01 | 国家电网公司 | Switch cabinet electrified display positive locking mechanism |
-
2015
- 2015-10-28 CN CN201710143569.7A patent/CN106848905B/en not_active Expired - Fee Related
- 2015-10-28 CN CN201510709199.XA patent/CN105305286B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10144170A (en) * | 1996-11-11 | 1998-05-29 | Kubota Corp | Control panel with wrong operation preventive function |
| CN103579994A (en) * | 2012-08-03 | 2014-02-12 | 施耐德电器工业公司 | Control device and method with over/under-voltage protection and automatic reset functions |
| CN203941273U (en) * | 2014-07-02 | 2014-11-12 | 苏州上电科电气设备有限公司 | A kind of isolating switch temperature rise, wink are moved action test device |
| CN204441786U (en) * | 2015-03-31 | 2015-07-01 | 国家电网公司 | Switch cabinet electrified display positive locking mechanism |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108169670A (en) * | 2018-02-01 | 2018-06-15 | 贵州电网有限责任公司 | A kind of Anti-jump Circuit of Breaker automatic test equipment and test method |
| CN108169670B (en) * | 2018-02-01 | 2023-07-14 | 贵州电网有限责任公司 | Automatic test device and test method for circuit breaker anti-jump loop |
| CN108666920A (en) * | 2018-07-13 | 2018-10-16 | 河南森源电气股份有限公司 | A kind of PT hand car interlock circuit, PT hand car and metering cabinet |
| CN108666920B (en) * | 2018-07-13 | 2024-01-19 | 河南森源电气股份有限公司 | PT handcart interlocking circuit, PT handcart and metering cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106848905B (en) | 2019-02-22 |
| CN105305286B (en) | 2017-06-16 |
| CN105305286A (en) | 2016-02-03 |
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Granted publication date: 20190222 Termination date: 20191028 |