CN103675667B - Load switch electrical endurance monitoring system and method - Google Patents
Load switch electrical endurance monitoring system and method Download PDFInfo
- Publication number
- CN103675667B CN103675667B CN201310693629.4A CN201310693629A CN103675667B CN 103675667 B CN103675667 B CN 103675667B CN 201310693629 A CN201310693629 A CN 201310693629A CN 103675667 B CN103675667 B CN 103675667B
- Authority
- CN
- China
- Prior art keywords
- load switch
- switch
- distribution terminal
- electric life
- load
- 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.)
- Active
Links
Landscapes
- Keying Circuit Devices (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses a load switch electrical endurance monitoring system and method. The load switch electrical endurance monitoring system comprises a load switch and a power distribution terminal. The load switch comprises an incoming and outgoing line sleeve, a phase current transformer, a zero sequence current transformer, a vacuum arc-extinguishing chamber, a static contact, a moving contact, a voltage transformer and an isolating switch. The load switch is reliably connected with the power distribution terminal through an aviation plug and a cable. An overtravel sensor is arranged in a load switch body and located between the static contact and the moving contact. A control chip is arranged in the power distribution terminal and connected with the phase current transformer, the zero sequence current transformer, the overtravel sensor and the voltage transformer in a load switch body, and the control chip is connected to an alarm module. The sensor in the load switch transmits corresponding data to the power distribution terminal in real time, the power distribution terminal computes the residual electrical endurance of the load switch through the control chip of the power distribution terminal, and an alarm device can be started when the residual electrical endurance of the load switch is zero.
Description
Technical field
The present invention relates to a kind of monitoring system and method, more particularly, to a kind of electric service life monitor system and method.
Background technology
On-load switch is widely used in the ring main unit of cable system and on the on-pole switch of built on stilts network, and on-load switch is made
For the important boundary of distribution backbone, contact node, play the operation monitoring to distribution network line and quick to faulty line
The effect judging, position, isolate and restoring electricity, is used widely in power system power transmission and distribution.However, on-load switch because
Load impact, close that high current number of times is excessive or long-play easily reaches load in the inferior a variety of causes of high current condition
The use electric life of switch so that quiet, moving contact heating deformation in on-load switch, wear oxidation etc., if overhaul not in time or
Change switchgear, quiet, moving contact in switch can be led to because of loose contact, to lose the effect of on-load switch, or even arcing or combustion
Arc overlong time and lead to on-load switch to explode, the accident such as fire.This will affect the operation safety of whole power distribution network.
On-load switch has at home and abroad had the development of several more than ten years, on-load switch quality and performance very reliable,
The intrinsic electric life of on-load switch is that rated short circuit current closes number of times and can reach 3～5 times.On-load switch is in use such as
Fruit closes short circuit current number of times and has exceeded specified number of times when dispatching from the factory, shows that on-load switch is quiet, moving contact electrical wear has reached it
Operating limit value.At present, domestic all switch producers simply remove to judge roughly the remaining electricity of on-load switch according to intrinsic electric life
In the life-span, user is reminded to overhaul in time or change switchgear.However, on-load switch is because of each producer's manufacture craft, fittings quality
With the reason such as bad in switch actual motion, electric life has very big difference, goes to judge that on-load switch is surplus with intrinsic electric life
Remaining electric life is insecure.
For example, after a certain secondary line is short-circuited fault, on-load switch does not cut off short circuit in time because of superior load switch
Fault and make on-load switch long-play in high current environment, the quiet, moving contact in on-load switch because heating, oxidation,
Deformation etc. has a strong impact on the use electric life of on-load switch, and now quiet, moving contact electrical wear situation does not calculate load
Among the remaining electric life of switch.
Again for example after a certain secondary line is short-circuited fault, fault also do not exclude and because maloperation is carried out to on-load switch
Close a floodgate, on-load switch closes short circuit current overlong time so that the arcing of contact, arc time are long because of mechanical reason, leads to
Quiet, moving contact in on-load switch has a strong impact on the electric life of on-load switch because of heating, oxidation, electrical wear, deformation etc., and now
It is once insecure that on-load switch residual life successively decreases.
Again for example, on-load switch is because the reason such as manufacture craft is bad is during normal occlusion, separating brake, overtravel serious distortion
（Generally ± 2mm）, even without overtravel, now, because of quiet, moving contact because no pressure does not fit together, cause load
The empty Zygosis Phenomenon of switch, now, the elastic electrical wear of surface loading switch reaches service life, needs on-load switch is examined
Repair or change.Therefore, it is necessary to it is big to take certain means to consider the intrinsic electric life of on-load switch, circuit running current
Little, arcing or the correlative such as arc time, overtravel remove comprehensive monitoring on-load switch residue electric life.
Content of the invention
It is an object of the invention to provide a kind of on-load switch electric service life monitor system and method.
For reaching above-mentioned purpose, the invention provides a kind of on-load switch electric service life monitor system, including on-load switch, join
Electric terminals, communication module and backstage main website.
Described on-load switch includes into and out of thread casing, phase sequence current transformer, zero sequence current mutual inductor, vacuum interrupter,
Quiet, moving contact, overtravel sensor, voltage transformer, disconnecting switch.
Described into and out of thread casing connection line mains side and load side, described overtravel sensor is arranged on on-load switch
Inside, between quiet, moving contact.
Described distribution terminal includes digital signal controller, described phase sequence current transformer, zero sequence current mutual inductor, is out of the line
Journey sensor, voltage transformer are connected with the respective pin of described digital signal controller by transmission line.
Described distribution terminal is in communication with each other by transmission line with described communication module.
Described backstage main website is long-distance intelligent machine terminal.
Described communication module includes wireless GPRS/gsm communication module and RS232/485 communication module, and with described backstage
Main website is communicated by wireless network mode or fieldbus mode.
Described on-load switch electric service life monitor system also includes alarm module, photo-coupler, display module etc..
The digital signal controller of described distribution terminal and described alarm module, described display module, described communication module,
It is respectively arranged with photo-coupler between described distribution terminal.
Described alarm module is alarm, and described display module is display screen.
Preferably, described digital signal controller can adopt the DSC chip of model STM32f407VG.
Preferably, described communication module can be using H7710 series.
A kind of method carrying out the measurement monitoring of on-load switch electric life using on-load switch electric service life monitor system of the present invention,
It is characterized in that following steps：
Step one, calculated load switchs the absolute wear extent of electric life；
Step 2, calculated load switch electric life is relative to electrical wear amount；
Step 3, the elastic electrical wear amount of calculated load switch；
Step 4, the remaining electric life of calculated load switch；
Step 5, assessment on-load switch residue electric life, send it to corresponding display module or remote monitoring end；
Step 6, according to the on-load switch residue electric life assessed, corresponding initiation is reported to the police or is sent by remote monitoring end
Return corresponding control instruction.
Described on-load switch electric life absolute wear extent closes short circuit current number of times, described load when working for on-load switch
Switch electric life relative wear amount includes：In circuit, current value exceeds the electrical wear amount that the time cumulation of setting threshold values changes into,
During on-load switch separating brake, arcing or arc time add up the electrical wear amount changing into.Described on-load switch elasticity electrical wear amount is
Distance elasticity electrical wear amount L that quiet during on-load switch separating brake, moving contact Contact is flicked again due to inertia with set away from
Difference from constant.
A kind of method carrying out the measurement monitoring of on-load switch electric life using on-load switch electric service life monitor system of the present invention,
Comprise the following steps：
The intrinsic electric life S of known on-load switch, in short-circuiting device residue electric life calculates, chooses data below as sentencing
According to：
Short circuit current frequency n is closed, the current value in circuit during on-load switch work exceedes in advance during on-load switch work
Overtime t1, quiet during on-load switch separating brake, moving contact arcing or the arc time t2 of the threshold values setting；
Overtime t1 and arcing or arc time t2 are converted to the dynamic and static contact abrasion of on-load switch by certain algorithm
Degree, to close short circuit current time number scale；
On-load switch residue electric life deducts overtime t1 and arcing for original life S or arc time t2 changes into
Close short circuit current number of times；
When on-load switch residue electric life is 0 time, digital signal controller produces alarm signal, and is sent to warning mould
Block, the alarm of described alarm module starts reports to the police；
Meanwhile, digital signal controller sends the data to communication module；
Alarm signal is sent to backstage main website by local bus or wireless network by communication module.
In addition, the remaining electric life of on-load switch also by elastic electrical wear amount L as criterion, its step includes：
Described on-load switch closes a floodgate every time, separating brake when, quiet, moving contact Contact due to the distance that inertia flicks again is
Elastic electrical wear amount L；Record elastic electrical wear amount L during each switch motion using overtravel sensor, when elastic electrical wear
Amount L is less than when setting threshold values, judges that digital signal controller judges on-load switch residue electric life as 0 time, distribution terminal produces
Alarm signal, and it is sent to alarm module, alarm signal is sent to communication module simultaneously, backstage master is sent to by communication module
Stand.
In the above-mentioned methods, distribution terminal can be able to be passed through by the swapping data of GPRS communication mode and main website again
Gsm communication mode is sent to user mobile phone alarm signal, has RS232/RS485 Local bus communication interface simultaneously.
By on-load switch residue electric life monitoring and the method for early warning of the present invention, can overcome the disadvantages that remaining to on-load switch at present
Deficiency in electric life monitoring and method for early warning, can promote the intelligent level of on-load switch, improve what on-load switch ran
Security, the reliability of increase power supply, ultimately help the development of intelligent distribution network.
Brief description
Fig. 1 is the load switch body structure chart of the present invention；
Fig. 2 is the distribution terminal schematic diagram of the present invention；
Fig. 3 is the principle schematic of the on-load switch residue electric life monitoring and warning of the present invention；
Fig. 4 is on-load switch residue electric life monitoring and method for early warning, the criterion schematic diagram of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings the specific embodiment of the present invention is described in detail：
With reference to shown in Fig. 1, the on-load switch residue electric life monitoring warning device of the embodiment of the present invention includes：
Load switch body：Interior full of SF6 gas, take vacuum interrupter.
Entrance bushing 1 that load switch body includes setting gradually from left to right, moving contact 8, be flexible coupling 5, vacuum extinction
Room 6, static contact 7, current transformer 4, outlet casing tube 2, set along on-load switch inwall between described entrance bushing 1 and moving contact 8
Be equipped with voltage sensor 3, described be flexible coupling 5 be connected between moving contact 8 and disconnecting switch 11.Entrance bushing 1 and outlet casing tube 2
The mains side of connected load Switch main body and load side respectively, voltage transformer 3 summation current transformer 4 is separately positioned on load and opens
Inside the Pass on the circuit line of entrance bushing side and lead collar tube side.Load switch body also includes overtravel sensor 9, and it is arranged on
Between static contact 7 and moving contact 8.The 5 connection disconnecting switch that are flexible coupling and on-load switch are it is ensured that disconnecting switch and on-load switch are dynamic
Do not influence each other during work；The built-in quiet, moving contact of vacuum interrupter 6, ensures reliably to go out during switch motion under vacuum conditions
Arc.
Fig. 2 is the distribution terminal schematic diagram of the present invention.
Distribution terminal 10 is passed through aviation plug and cable and is electrically connected with load switch body.
Distribution terminal 10 is internal to include digital signal controller, definite value encoder, photo-coupler and communication module etc.,
In figure is not shown.
Distribution terminal is used for realizing three distant functions of panel switches, SOE（Logout）, time adjustment function etc..Can be real-time
Voltage x current size in separating brake, combined floodgate and fault of the monitoring voltage x current size of transmission line of electricity, on-load switch, the drawing of contact
Arc, arc time, on-load switch close short circuit current number of times statistics.It is responsible for and main website real-time Communication for Power simultaneously.
Fig. 3 is on-load switch residue electric life monitoring and the prior-warning device schematic diagram of the embodiment of the present invention.
As illustrated, current transformer in load switch body, overtravel sensor and voltage transformer and distribution
Digital signal controller in terminal 10 is connected.Communication module, alarm module, display module are connected to photo-coupler, light
The other end of coupler is connected with digital signal controller.Digital signal controller also with load switch body in monitoring move,
The travel switch of static contact division state is connected, and is provided with photo-coupler between it.
During the monitoring system work of the present invention, current transformer in load switch body, voltage transformer and be out of the line
Journey sensor sends digital signal controller to as analog input.Definite value encoder input value in distribution terminal, switch
State value, breaking current time numerical value and energy storage state value send digital signal controller to as digital quantity input.Communication mould
Block is connected with digital signal controller by fieldbus, is carried out with backstage main website by fieldbus or wireless network meanwhile
Real-time communication.The controlled quentity controlled variable output signal of digital signal controller acts on quiet, the moving contact of on-load switch, is allowed to carry out division
Lock operates.The alarm control signal of digital signal controller, status display controlled quentity controlled variable output valve be respectively acting on alarm module and
Display module, the alarm that alarm module adopts may include buzzing warning, sound and light alarm, and data disaply moudle includes LED state
Indicator lamp, LCD liquid crystal display screen etc..
In real work, central processor CPU can adopt the DSC chip of model STM32f407VG, the inside money of chip
Source is a lot, and memory capacity is big, low price, and ARM chip has wireless communication interface, ethernet interface simultaneously, also can produce
PWM ripple, can quickly process and export analog quantity, digital quantity, control signal, alarm signal etc..Defeated to control signal, alarm signal
Go out to increase TLP112 light-coupled isolation it is ensured that the stability of output signal and anti-interference.Meanwhile, using the H7710 of Hong electricity company
Sequence of communications module, distribution terminal by the swapping data of GPRS communication mode and main website, and can pass through gsm communication side
Formula is sent to user mobile phone alarm signal, has the local communication of RS232/RS485 and maintenance interface simultaneously.
Fig. 4 is on-load switch residue electric life monitoring and the method for early warning criterion schematic diagram of the embodiment of the present invention.Load is opened
The criterion closing remaining electric life includes data that each sensor in distribution terminal records and the intrinsic life value of on-load switch.
Each sensor records the real time data within on-load switch and is sent to central processor CPU and is compared, calculates, after process
Data is transferred to backstage main website, passes through data monitor in real time by the monitoring personnel of backstage main website, when the generation on-load switch electricity longevity
When life terminates to report to the police, attendant is sent to go to scene to change on-load switch, provide user service in time.
As illustrated, specific computational methods complete in the central processor CPU of distribution terminal, comprise the following steps：
It is S that the intrinsic electric life of known on-load switch closes short circuit current number of times；
When switch runs, the digital signal controller statistics in distribution terminal closes short circuit current frequency n；
When switch runs, distribution terminal passes through current transformer measurement circuitry current value, including A phase current mutual inductor, B
Phase current mutual inductor, C phase current mutual inductor and zero sequence current mutual inductor, set when the current value that current transformer detection obtains is more than
Determine current value, distribution terminal starts statistics integrating electric time t1, when the integrating electric time, t1 reached threshold values W, switch mill
Damage degree M1 increases once, and current time t1 resets, and switch degree of wear M1 is converted to switch and closes by digital signal controller
Short circuit current number of times, M1 increases to certain value, and closing short circuit current frequency n 1 increases by 1 time, and switch degree of wear M1 resets lays equal stress on
Newly start to accumulate；
When switching each separating brake, closing a floodgate, distribution terminal detection load switch is from electric current generation time t2 of the separating brake that closes a floodgate
I.e. quiet, moving contact arcing or arc time, electric current generation time t2 is converted to switch electrical wear journey by digital signal controller
Degree M2, when t2 reaches certain threshold values, M2 cumulative rises 1 time, t2 resets and restarts to accumulate, and digital signal controller will be opened
Pass degree of wear M2 is converted to switch and closes short circuit current number of times, and M2 increases to certain value, and closing short circuit current frequency n 2 increases
Once, switch degree of wear M2 resets and restarts to accumulate；
The intrinsic electric life of generally on-load switch is 5 times；
The remaining electric life of digital signal controller calculated load switch：N=5-n-n1-n2；
As N=0, switch has been used up its electric life, produces alarm signal by distribution terminal, and is sent to alarm module.
In addition, the remaining electric life of on-load switch also by elastic electrical wear amount L as criterion, its step includes：
On-load switch closes a floodgate every time, separating brake when, the distance that quiet, moving contact Contact is flicked again due to inertia is elasticity
Electrical wear amount L；Record elastic electrical wear amount L during each switch motion using overtravel sensor, when elastic electrical wear amount L<
During 0.5mm, digital signal controller judges that switch has been used up its electric life, and distribution terminal produces alarm signal, and is sent to report
Alarm signal is sent to backstage main website by alert unit simultaneously.
The on-load switch residue electric life monitoring of the present invention and method for early warning, including the damage that on-load switch electric current transfinites
Be converted into electric life and elastic electrical wear amount be monitored to the on-load switch life-span as criterion two aspect, more science,
Rationally, there is the meaning of double insurance, using on-load switch, reliable foundation provided in electrical network, main facilities to user,
It can be avoided that being lost by the improper fire causing of on-load switch Endurance Prediction, electric shock etc..
Above embodiment is only that the preferred embodiment of the present invention is described, and not the scope of the present invention is entered
Row limits, on the premise of without departing from design spirit of the present invention, the technical side to the present invention for this area ordinary skill technical staff
Various modifications and improvement that case is made, all should fall in the protection domain of claims of the present invention determination.
Claims (10)
1. a kind of on-load switch electric service life monitor system, including load switch body, distribution terminal (10), communication module and after
Platform main website, entrance bushing (1) that described load switch body includes setting gradually from left to right, moving contact (8), be flexible coupling (5),
Vacuum interrupter (6), static contact (7), current transformer (4), outlet casing tube (2), described entrance bushing (1) and moving contact (8)
Between on-load switch inwall is provided with voltage sensor (3), described be flexible coupling (5) be connected to moving contact (8) and disconnecting switch
(11) between, described into and out of thread casing (1,2) connection line mains side and load side, described on-load switch passes through aviation plug
Be reliably connected with cable and described distribution terminal (10) it is characterised in that
Described distribution terminal (10) is internally provided with digital signal controller；
Described load switch body is internally provided with overtravel sensor (9), and is located between quiet, moving contact (7,8)；
The internal digital signal controller of described distribution terminal (10) and described current transformer (4), overtravel sensor (9),
Voltage transformer (3) and described communication module are connected.
2. on-load switch electric service life monitor system according to claim 1 it is characterised in that
Described backstage main website is connected with described distribution terminal (10), and is in communication with each other；
Described backstage main website is long-distance intelligent machine terminal；
Described communication module includes wireless GPRS/gsm communication module and RS232/485 communication module, and it is with described backstage main website
Communicated by wireless network mode or fieldbus mode.
3. on-load switch electric service life monitor system according to claim 2 it is characterised in that
Also include photo-coupler, alarm module, display module；
The digital signal controller of described distribution terminal (10) and described alarm module, described display module, described communication module
Between by photo-coupler be connected.
4. on-load switch electric service life monitor system according to claim 3 it is characterised in that
Described digital signal controller adopts the DSC chip of model STM32f407VG；
Described photo-coupler adopts high light velocity photo-coupler TLP112；
Described communication module adopts the H7710 sequence of communications module of Hong electricity company；
Described alarm module includes alarm；
Described display module includes display lamp or display screen.
5. one kind carries out on-load switch electric life measuring and calculating using the arbitrary described on-load switch electric service life monitor system of claim 1-4
Method it is characterised in that comprising the following steps：
Step one, calculated load switchs the absolute wear extent of electric life；
Step 2, calculated load switch electric life is relative to electrical wear amount；
Step 3, the elastic electrical wear amount of calculated load switch；
Step 4, the remaining electric life of calculated load switch；
Step 5, assessment on-load switch residue electric life, send it to corresponding display module or remote monitoring end；
Step 6, according to the on-load switch residue electric life assessed, corresponding initiation is reported to the police or is sent back phase by remote monitoring end
Answer control instruction.
6. described in a kind of utilization claim 5 on-load switch electric life measuring and calculating method it is characterised in that：
Described on-load switch electric life absolute wear extent closes short circuit current number of times when working for on-load switch；
Described on-load switch electric life includes relative to electrical wear amount：In circuit, current value exceeds the time setting threshold values, and load is opened
When closing separating brake, arcing or arc time add up the electrical wear amount that changes into；
Described on-load switch elasticity electrical wear amount (L) be quiet during on-load switch separating brake, moving contact Contact due to inertia again
The secondary distance flicking and the difference of setpoint distance constant.
7. a kind of method using on-load switch electric life measuring and calculating described in claim 6 is it is characterised in that comprise the following steps：
The intrinsic electric life of known on-load switch, in on-load switch residue electric life calculates, chooses data below as criterion：
Short circuit current number of times (n) is closed, the current value in circuit during on-load switch work exceedes and sets in advance during on-load switch work
Determine the overtime (t1) of threshold values, the quiet during on-load switch separating brake, arcing of moving contact (7,8) or arc time (t2)；
Overtime (t1) and arcing or arc time (t2) are converted to the dynamic and static contact abrasion of on-load switch by certain algorithm
Degree, to close short circuit current time number scale；
On-load switch residue electric life deducts overtime (t1) and arcing for original life or the arc time (t2) changes into
Close short circuit current number of times；
When on-load switch residue electric life is 0 time, digital signal controller produces alarm signal, and is sent to alarm module,
The alarm of described alarm module starts reports to the police；
Meanwhile, digital signal controller sends the data to communication module, communication module by alarm signal pass through local bus or
Wireless network is sent to backstage main website.
8. on-load switch electric life according to claim 7 measuring and calculating method it is characterised in that
When switching each action, described quiet, moving contact (7,8) Contact flicks certain distance again due to inertia, using institute
State overtravel sensor (9) and record and flick distance for elastic electrical wear amount (L) during each switch motion；
Described digital signal controller reads the elastic electrical wear amount (L) that overtravel sensor (9) records；
Elastic electrical wear amount (L) is less than when setting threshold values, and digital signal controller produces alarm signal, and is sent to warning mould
Block；
The alarm of described alarm module starts reports to the police；
Meanwhile, digital signal controller sends the data to communication module, communication module by alarm signal pass through local bus or
Wireless network is sent to backstage main website.
9. the method for on-load switch electric life according to claim 8 measuring and calculating is it is characterised in that following steps：
The intrinsic electric life of known described on-load switch as closes short circuit current number of times (S)；
When switch runs, described distribution terminal (10) statistics closes short circuit current number of times (n)；
When switch runs, described distribution terminal is by described current transformer measurement circuitry current value (A)；
When the current value (A) that the detection of described current transformer obtains is more than setting electric current value, described digital signal controller starts
Statistics electric current overtime (t1)；
When the integrating electric time reaching certain value, switch degree of wear M1 increases once, and the electric current overtime (t1) resets；
Switch degree of wear M1 is converted to on-load switch and closes short circuit current number of times, it increases to certain value, close short circuit electricity
Stream frequency n 2 increases by 1 time, and switch degree of wear M1 resets and restarts to accumulate；
When switching each separating brake, distribution terminal (10) detection load switch is quiet, dynamic from the current vanishes time of the separating brake that closes a floodgate
The arcing of contact or arc time (t2)；
Accumulation arcing or arc time (t2) are converted to switch electrical wear degree M2, when it reaches certain value, switch electrical wear journey
Degree M2 cumulative rises 1 time, arcing or arc time (t2) reset and restart to accumulate；
Switch degree of wear M2 is converted to switch and closes short circuit current number of times, it increases to certain value, close short circuit current
Number n2 increases once, and switch degree of wear M2 resets and restarts to accumulate；
The remaining electric life of the digital signal controller calculated load switch of described distribution terminal：N=S-n-n1-n2；
As N=0, switch has been used up its electric life, sends alarm signal by the digital signal controller of distribution terminal, and transmits
To alarm module；
Described distribution terminal (10) sends alarm signal to backstage main website simultaneously.
10. on-load switch electric life according to claim 9 measuring and calculating method it is characterised in that
Described distribution terminal passes through the swapping data of GPRS communication mode and main website；
Described distribution terminal is sent to user mobile phone also by gsm communication mode alarm signal, has RS232/RS485 simultaneously
Local communication function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310693629.4A CN103675667B (en) | 2013-12-17 | 2013-12-17 | Load switch electrical endurance monitoring system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310693629.4A CN103675667B (en) | 2013-12-17 | 2013-12-17 | Load switch electrical endurance monitoring system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103675667A CN103675667A (en) | 2014-03-26 |
| CN103675667B true CN103675667B (en) | 2017-02-15 |
Family
ID=50313825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310693629.4A Active CN103675667B (en) | 2013-12-17 | 2013-12-17 | Load switch electrical endurance monitoring system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103675667B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105353302B (en) * | 2015-11-20 | 2018-05-15 | 深圳供电局有限公司 | Method for detecting arcing time of switch equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008046375A1 (en) * | 2008-09-09 | 2010-03-11 | Siemens Aktiengesellschaft | Armature closing time point determining method for magnetic system of shuttle, involves providing yoke, coil and electronic evaluation and control device in magnetic system, and detecting impact action of armature on yoke by sensor |
| CN101825684A (en) * | 2010-05-20 | 2010-09-08 | 常州市明及电气技术开发有限公司 | Intelligent vacuum circuit breaker online monitoring method |
| CN102522269A (en) * | 2011-12-27 | 2012-06-27 | 日新恒通电气有限公司 | Intelligent circuit breaker |
| CN103344909A (en) * | 2013-06-25 | 2013-10-09 | 国家电网公司 | Method for detecting service life of breaker |
| CN203688763U (en) * | 2013-12-17 | 2014-07-02 | 北京合锐赛尔电力科技有限公司 | Electric life monitoring system for load switch |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE0003304D0 (en) * | 2000-09-18 | 2000-09-18 | Abb Ab | Method and device for condition checking of an electrical coupler |
-
2013
- 2013-12-17 CN CN201310693629.4A patent/CN103675667B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008046375A1 (en) * | 2008-09-09 | 2010-03-11 | Siemens Aktiengesellschaft | Armature closing time point determining method for magnetic system of shuttle, involves providing yoke, coil and electronic evaluation and control device in magnetic system, and detecting impact action of armature on yoke by sensor |
| CN101825684A (en) * | 2010-05-20 | 2010-09-08 | 常州市明及电气技术开发有限公司 | Intelligent vacuum circuit breaker online monitoring method |
| CN102522269A (en) * | 2011-12-27 | 2012-06-27 | 日新恒通电气有限公司 | Intelligent circuit breaker |
| CN103344909A (en) * | 2013-06-25 | 2013-10-09 | 国家电网公司 | Method for detecting service life of breaker |
| CN203688763U (en) * | 2013-12-17 | 2014-07-02 | 北京合锐赛尔电力科技有限公司 | Electric life monitoring system for load switch |
Non-Patent Citations (2)
| Title |
|---|
| 高压断路器综合监控系统的断路器电寿命功能模块研究;文建伟;《电力科学与工程》;20090531;第25卷(第5期);第76-78页 * |
| 高压断路器触头电寿命预测的研究;郭贤珊 等;《高电压技术》;19990930;第25卷(第3期);第43-44页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103675667A (en) | 2014-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103675669B (en) | Breaker electrical endurance monitoring system and method | |
| CN107171431B (en) | Uninterrupted power regulating equipment, uninterrupted power regulating system and uninterrupted power regulating control method | |
| CN102707169B (en) | Relay protection accident image detecting system and relay protection accident image detecting method | |
| CN201904560U (en) | Intelligent environment-friendly solid fully-insulated looped network cabinet | |
| CN104297676B (en) | Method, device and system for monitoring circuit breaker of wind generating set | |
| CN207304136U (en) | Tune electric equipment and system free of discontinuities | |
| CN103051057B (en) | Condition-based Maintenance of Substation Equipment intelligent management supervisory control system | |
| CN206977447U (en) | Interchanger outage detection remote alarm device | |
| CN114487647A (en) | Mine explosion-proof electrical apparatus on-off capability detection system and service life assessment method | |
| CN103675667B (en) | Load switch electrical endurance monitoring system and method | |
| CN202817760U (en) | Intelligent reactive-power compensation capacitor and intelligent reactive-power compensation system network | |
| CN203688763U (en) | Electric life monitoring system for load switch | |
| CN203643578U (en) | Breaker electrical endurance monitoring system | |
| CN203746200U (en) | Power transformer operation state alarm | |
| CN203799465U (en) | Power transformer with operating state alarm | |
| CN202076781U (en) | Protector with temperature monitoring | |
| CN202940644U (en) | Intelligent management and monitoring system for substation equipment state maintenance | |
| CN207304150U (en) | Secondary equipment in power system dual power supply comprehensive management apparatus | |
| CN104009547A (en) | Motoring device for breaker remote operation function and transformer substation remote operation system | |
| CN210072434U (en) | Heater centralized control system | |
| CN104377664B (en) | Mesolow arc light busbar protective device group | |
| CN203645226U (en) | Pressure protection structure of ring main unit | |
| CN203504294U (en) | Online monitoring early-warning system of operating conditions of power distribution equipment | |
| CN109120066B (en) | Colliery electric power monitored control system transmission equipment | |
| CN206564457U (en) | Intelligent multifunction earth leakage protective device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: Advantech No. 7 building, 100085 Beijing city Haidian District on the street 5 Applicant after: BEIJING HEROSAIL POWER SCI & TECH CO., LTD. Address before: Advantech No. 7 building, 100085 Beijing city Haidian District on the street 5 Applicant before: Beijing Herui SEL Power Science & Technology Co., Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: BEIJING HERUI SEL POWER SCIENCE + TECHNOLOGY CO., LTD. TO: BEIJING HERUI SEL POWER TECHNOLOGY CO., LTD. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |