CN111190098A - Relay fault detection method and detection system - Google Patents
Relay fault detection method and detection system Download PDFInfo
- Publication number
- CN111190098A CN111190098A CN201911398509.5A CN201911398509A CN111190098A CN 111190098 A CN111190098 A CN 111190098A CN 201911398509 A CN201911398509 A CN 201911398509A CN 111190098 A CN111190098 A CN 111190098A
- Authority
- CN
- China
- Prior art keywords
- acceleration
- relay
- displacement
- signal
- fault detection
- 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.)
- Pending
Links
Images
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Locating Faults (AREA)
Abstract
The embodiment of the application provides a relay fault detection method and a relay fault detection system, and by adopting the relay fault detection method, acceleration signals and push rod displacement signals at the closed position of a relay contact are acquired and processed into a plurality of acceleration monitoring variables and displacement monitoring variables; and then comparing the current acceleration monitoring variable and the displacement monitoring variable with the stored data one by one to obtain a comparison result of the normal state or the fault state of the relay. Whether the closed state of the contact and the contact are in fault or not is comprehensively judged, and the condition of missing fault detection is avoided.
Description
Technical Field
The application belongs to the technical field of relays, and particularly relates to a relay fault detection method and a relay fault detection system.
Background
With ecological civilization and beautiful strong landscape of China, green travel, zero emission and clean energy are in the future. More and more electronic equipment is inrush, and in order to guarantee safety, most of the electronic equipment needs to be connected to a power grid through equipment such as a relay and a contactor. Taking a new energy battery pack as an example, the new energy battery pack conforms to the development trend of China and even the world for new energy power at present and in the future. The new energy lithium battery pack needs to withstand various complex physical phenomena such as vibration, electrical stress, thermal stress and the like in product tests and product use processes, so that a relay closing fault and abnormal sound of electronic components can be generated, and therefore the relay needs to be monitored and diagnosed.
An electromagnetic relay is an electronic control device having a control system, i.e., an input circuit, and a controlled system, i.e., an output circuit, and is commonly used in an automatic control circuit. As shown in fig. 1, the electromagnetic relay mainly comprises a control end energizing coil 3, an electromagnetic iron core 1, a push rod 2, a spring 4, a moving contact 5, a fixed contact 6, a high-voltage terminal 7 and the like. As can be seen from fig. 1, in the working process of the relay, because the output circuit has high voltage and large current, high temperature and sparks are often generated on the moving contact and the stationary contact, and faults such as contact fusing at the high voltage end, poor contact of the moving contact and the stationary contact, open circuit of the energizing coil and the like are also easily caused, thereby causing the failure of the relay.
In the technical scheme of the contact state real-time monitoring of the existing electromagnetic relay contact, as shown in fig. 2, the movement of a push rod of the relay is monitored through a displacement photoelectric sensor based on a photoelectric coupling principle, and the opening or closing state of the contact is judged only by the position of the push rod, so that the closing state of a movable contact and a fixed contact can be detected under the general condition, but the push rod is not directly connected with the contact and can not directly and effectively embody the contact state, and the defect of missed detection of the relay fault exists, so that the working state of the relay can not be effectively and accurately monitored, and an effective and accurate judgment basis can not be provided for relay fault diagnosis.
Disclosure of Invention
The invention provides a relay fault detection method and a relay fault detection system, and aims to solve the problem that in the relay fault detection of the prior art, whether a relay contact is closed or not is judged only by detecting the position of a relay push rod through a photoelectric sensor, and the detection leakage of the relay contact closing fault exists.
According to a first aspect of embodiments of the present application, there is provided a relay fault detection method, including the steps of:
acquiring an acceleration signal at the closed position of a relay contact and a displacement signal of a relay push rod;
extracting a plurality of acceleration monitoring variables according to the acceleration signals, and extracting a plurality of displacement monitoring variables according to the push rod displacement signals;
storing the acceleration monitoring variables and the displacement monitoring variables, and comparing the current acceleration monitoring variables and the displacement monitoring variables with stored data one by one to obtain a plurality of comparison results;
and displaying the normal state or the fault state of the relay according to the comparison results.
According to a second aspect of an embodiment of the present application, there is provided a relay fault detection system including:
the acceleration signal acquisition module is used for acquiring acceleration signals at the closed position of the relay contact;
the displacement signal acquisition module is used for acquiring a displacement signal of the push rod of the relay;
the signal processing module is used for extracting a plurality of acceleration monitoring variables according to the acceleration signals and extracting a plurality of displacement monitoring variables according to the push rod displacement signals;
the data storage and comparison module is used for storing the acceleration monitoring variables and the displacement monitoring variables and comparing the current acceleration monitoring variables and the displacement monitoring variables with the stored data one by one to obtain a plurality of comparison results;
and the state display module is used for displaying the normal state or the fault state of the relay according to the comparison results.
By adopting the relay fault detection method and the relay fault detection system in the embodiment of the application, the acceleration signal and the push rod displacement signal at the closed position of the relay contact are simultaneously acquired and processed into an acceleration monitoring variable and a displacement monitoring variable; and then comparing the current acceleration monitoring variable and the displacement monitoring variable with the stored data to obtain a comparison result of the normal state or the fault state of the relay. Whether the closed state of the contact and the contact are in fault or not is comprehensively judged, and the condition of missing fault detection is avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic diagram showing a main structure of a prior art electromagnetic relay;
a schematic diagram of prior art relay fault detection is shown in fig. 2;
a flow chart of steps of a relay fault detection method according to an embodiment of the application is shown in fig. 3;
a schematic structural diagram of a relay fault detection system according to an embodiment of the present application is shown in fig. 4;
a schematic diagram of relay fault detection in an embodiment according to the application is shown in fig. 5.
Detailed Description
In the process of realizing the application, the inventor finds that in the working process of the relay, because the output loop has high voltage and large current, the movable contact and the fixed contact can generate high temperature and sparks, and faults such as contact fusing of a high-voltage end, poor contact of the movable contact and the fixed contact, open circuit of an electrified coil and the like can be caused easily, so that the relay is out of work, and the relay needs to be monitored and diagnosed. And the relay fault detection of the prior art only judges whether the contact of the relay is closed or not by detecting the position of the push rod of the relay through the photoelectric sensor, so that the problem of missed detection of the closed fault of the contact of the relay is solved.
In order to solve the above problems, the embodiment of the application provides a relay fault detection method and a detection system, which process an acceleration signal and a push rod displacement signal into an acceleration monitoring variable and a displacement monitoring variable by simultaneously acquiring the acceleration signal and the push rod displacement signal at a relay contact closing position; and then comparing the current acceleration monitoring variable and the displacement monitoring variable with the stored data to obtain a comparison result of the normal state or the fault state of the relay. According to the method and the device, whether the closed state and the contact of the contact are in fault or not is judged comprehensively, and the condition that the fault of the contact of the relay is missed to be detected is avoided. The problem of the relay fault detection that whether contact of the relay is closed or not is judged only through the position that photoelectric sensor detected the relay push rod during the relay fault detection of prior art, the trouble that exists is missed to examine is solved.
In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
In the existing technical scheme for monitoring the contact state of the electromagnetic relay in real time, only a displacement photoelectric sensor based on a photoelectric coupling principle monitors the movement of a push rod, the contact closing state is judged only by the position of the push rod, the judgment on whether the contact state of the contact is faulty or not is not effectively realized, the working state of the relay cannot be monitored in real time, and the defect of missed detection of the fault of the relay exists, so that an effective judgment basis cannot be provided for fault diagnosis of the relay.
A schematic diagram of prior art relay fault detection is shown in fig. 2.
As shown in fig. 2, the technical scheme of real-time monitoring of the contact state of the electromagnetic relay mainly comprises four parts, including a control end signal extraction module, a photoelectric sensing module, a signal processing module and a display module. The photoelectric displacement sensor based on the photoelectric coupling principle is used for monitoring the movement displacement of the push rod, judging and analyzing the monitored signals through the signal processing module, and finally displaying the judgment result through the display module.
A flowchart of the steps of a relay fault detection method according to an embodiment of the application is shown in fig. 3.
As shown in fig. 3, the method for detecting a relay fault in this embodiment specifically includes the following steps:
s101: acquiring an acceleration signal at the closed position of a relay contact and a displacement signal of a relay push rod;
s102: extracting a plurality of acceleration monitoring variables according to the acceleration signals, and extracting a plurality of displacement monitoring variables according to the push rod displacement signals;
s103: storing the acceleration monitoring variables and the displacement monitoring variables, and comparing the current acceleration monitoring variables and the displacement monitoring variables with stored data one by one to obtain a plurality of comparison results;
s104: and displaying the normal state or the fault state of the relay according to the comparison result.
Specifically, in S102, the acceleration monitoring variables include an acceleration amplitude, an acceleration frequency, an acceleration change rate, and an acceleration delay amount. The displacement monitoring variables comprise displacement amplitude, displacement change rate and displacement delay.
Further, the acceleration amplitude, the acceleration frequency and the acceleration change rate are obtained through a matlab algorithm according to the acceleration signal and the numerical curve of the acceleration signal; the acceleration delay is obtained according to the difference value between the generation time of the acceleration signal and the generation time of the relay trigger signal, namely the acceleration delay is determined by the delay time of the acceleration signal and the relay trigger signal.
Specifically, the change rate refers to the amount of change per unit time. The acceleration change rate in this embodiment refers to the amount of change in acceleration per unit time, and the displacement change rate refers to the amount of change in displacement per unit time.
In S103, comparing the current acceleration monitoring variable and the displacement monitoring variable with the stored data to obtain a comparison result specifically includes:
calculating the average value of each acceleration monitoring variable and each displacement monitoring variable in the stored data;
comparing the current acceleration monitoring variables and the displacement monitoring variables with the average value to obtain a plurality of deviation values;
and determining a relay closure fault when the deviation value exceeds a defined threshold value.
In another embodiment, after S102, the method further includes: and receiving and transmitting the acceleration signal, the push rod displacement signal and the relay trigger signal which are collected in the step S101.
A schematic structural diagram of a relay fault detection system according to an embodiment of the present application is shown in fig. 4.
As shown in fig. 4, the relay fault detection system provided in this embodiment specifically includes:
the acceleration signal acquisition module 10 is used for acquiring acceleration signals at the closed position of the relay contact;
the displacement signal acquisition module 20 is used for acquiring a displacement signal of the push rod of the relay;
the signal processing module 30 is configured to process the acceleration signal and the push rod displacement signal into an acceleration monitoring variable and a displacement monitoring variable;
the data storage and comparison module 40 is used for storing the acceleration monitoring variable and the displacement monitoring variable, and comparing the current acceleration monitoring variable and the current displacement monitoring variable with the stored data to obtain a comparison result;
and the state display module 50 is used for displaying the normal state or the fault state of the relay according to the comparison result.
Specifically, the acceleration signal acquisition module 10 is disposed on a portion of the stationary contact that is in contact with the movable contact.
Specifically, the displacement signal collecting module 20 is a displacement sensor or a photoelectric sensor.
In particular, the acceleration sensor is a sensor that senses acceleration and converts it into a usable output signal. The piezoelectric sensor with the built-in IC circuit is adopted, and the voltage quantity which is in direct proportion to vibration or pressure is obtained by utilizing the piezoelectric effect of the piezoelectric sensitive element.
Specifically, the linear displacement photoelectric sensor integrates a signal transmitter and a signal receiver coil based on an RLC coupling circuit, and the signal transmitter coil is activated by a high-frequency alternating-current magnetic field and mutually induces with a resonator to generate an RLC induction circuit. The change of the voltage caused by the induction of the resonator and the receiving coil is the measuring signal. The displacement sensor has two kinds of coarse positioning coils and precise positioning coils for simultaneous positioning to ensure measurement precision and eliminate the influence of position error and jitter.
The acceleration and displacement sensors used in this embodiment may be replaced with sensors having equivalent electromagnetic interference resistance and accuracy.
Preferably, the relay fault detection system of the present embodiment further includes:
the signal extraction module is used for receiving the acceleration signal and the relay trigger signal;
and the photoelectric sensing module is used for receiving the push rod displacement signal.
The present embodiment also provides a computer-readable storage medium having stored thereon a computer program which is executed by a processor to implement the relay fault detection method as provided in any one of the above.
By adopting the relay fault detection method and the relay fault detection system in the embodiment of the application, the acceleration signal and the push rod displacement signal are processed into an acceleration monitoring variable and a displacement monitoring variable by acquiring the acceleration signal at the closed position of the relay contact and the relay push rod displacement signal; and then comparing the current acceleration monitoring variable and the displacement monitoring variable with the stored data to obtain a comparison result of the normal state or the fault state of the relay. Whether the closed state of the contact and the contact are in fault or not is comprehensively judged, and the condition of missing fault detection is avoided.
A schematic diagram of relay fault detection in an embodiment according to the application is shown in fig. 5.
As shown in fig. 5. The monitoring and diagnosis system consists of a control end signal extraction module, an acceleration signal acquisition module, a photoelectric sensing module, a signal processing module, a data storage and comparison module and a state display module.
The electromagnetic coil power supply supplies power for the acceleration sensor and the linear displacement photoelectric sensor, the acceleration sensor monitors the impact signal of the static contact, the grating displacement sensor monitors the displacement and the position of the push rod, and finally the closing condition and the contact state of the relay contact are confirmed according to the change of the impact signal of the acceleration sensor and the change of the displacement of the push rod.
Preferably, whether the contact closing is abnormal or not is preliminarily judged through the change of an impact signal generated by the contact closing monitored by the acceleration sensor;
then, whether the contact closure is abnormal is monitored through acceleration delay, namely the variation of the occurrence delay time of the impact signal of the contact closure relative to the trigger signal;
meanwhile, whether the contact closure is abnormal or not is monitored through the change of the amplitude of the impact signal of the contact closure, namely the acceleration amplitude, and the vibration frequency component, namely the acceleration frequency.
This application embodiment monitors push rod displacement and position through photoelectric displacement sensor: and the state of the relay contact closing mechanical mechanism is monitored by comparing the variation of the closing displacement variation rate relative to the average value of the generated closing displacement variation rate through the push rod.
Finally, the judgment result of the monitoring component is corrected through the position of the push rod in the embodiment of the application.
The contact acceleration signal is monitored in real time by additionally arranging the acceleration sensor and the linear displacement sensor, the contact acceleration signal comprises acceleration frequency, acceleration amplitude, acceleration change rate and acceleration signal relative trigger signal occurrence time, the displacement frequency, the displacement amplitude, the displacement change rate and the displacement relative trigger signal occurrence time of the displacement signal are detected, and finally, the historical average value of corresponding monitoring components and a voltage real-time signal are combined to realize relay closing monitoring and fault diagnosis.
The invention simultaneously collects the acceleration signal at the contact point, the displacement signal of the push rod and the closing signal of the electromagnetic coil circuit of the relay, processes the signals into monitoring variables such as acceleration amplitude, acceleration frequency, acceleration degree change rate, acceleration delay, displacement amplitude, displacement change rate and displacement delay, stores the data, compares the data with the stored average value of the same variables, comprehensively judges whether the closing state and the contact of the contact are effective or not and automatically corrects the result.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. A relay fault detection method is characterized by comprising the following steps:
acquiring an acceleration signal at the closed position of a relay contact and a displacement signal of a relay push rod;
extracting a plurality of acceleration monitoring variables according to the acceleration signals, and extracting a plurality of displacement monitoring variables according to the push rod displacement signals;
storing the acceleration monitoring variables and the displacement monitoring variables, and comparing the current acceleration monitoring variables and the displacement monitoring variables with stored data one by one to obtain a plurality of comparison results;
and displaying the normal state or the fault state of the relay according to the comparison results.
2. The relay fault detection method of claim 1, wherein the acceleration monitoring variables include acceleration amplitude, acceleration frequency, jerk, and acceleration delay.
3. The relay fault detection method according to claim 1, wherein the acceleration amplitude, the acceleration frequency and the acceleration change rate are obtained by a matlab algorithm according to a numerical curve of an acceleration signal according to the acceleration signal; the acceleration delay is obtained according to the difference value between the generation time of the acceleration signal and the generation time of the relay trigger signal.
4. The relay fault detection method of claim 1, wherein the displacement monitoring variables include displacement amplitude, displacement rate of change, and displacement delay amount.
5. The relay fault detection method according to claim 1, wherein the step of comparing the current acceleration monitoring variables and the displacement monitoring variables with the stored data one by one to obtain a plurality of comparison results specifically comprises:
calculating each acceleration monitoring variable and each average value of each displacement monitoring variable in the stored data;
comparing each current acceleration monitoring variable and each current displacement monitoring variable with each average value one by one to obtain a plurality of deviation values;
determining a relay closure fault when at least one of the plurality of deviation values exceeds a respective defined threshold.
6. The relay fault detection method according to claim 1, wherein the step of acquiring the acceleration signal and the push rod displacement signal at the closed position of the relay contact further comprises the following steps:
and receiving and transmitting the acceleration signal, the push rod displacement signal and the relay trigger signal.
7. The utility model provides a relay fault detection system which characterized in that specifically includes:
the acceleration signal acquisition module is used for acquiring acceleration signals at the closed position of the relay contact;
the displacement signal acquisition module is used for acquiring a displacement signal of the push rod of the relay;
the signal processing module is used for extracting a plurality of acceleration monitoring variables according to the acceleration signals and extracting a plurality of displacement monitoring variables according to the push rod displacement signals;
the data storage and comparison module is used for storing the acceleration monitoring variables and the displacement monitoring variables and comparing the current acceleration monitoring variables and the displacement monitoring variables with the stored data one by one to obtain a plurality of comparison results;
and the state display module is used for displaying the normal state or the fault state of the relay according to the comparison results.
8. The relay fault detection system of claim 7, wherein the acceleration signal acquisition module is disposed at a portion of the stationary contact that contacts the movable contact.
9. The relay fault detection system of claim 7, wherein the displacement signal acquisition module is a displacement sensor or a photosensor.
10. The relay fault detection system of claim 7, further comprising:
the signal extraction module is used for receiving the acceleration signal and the relay trigger signal;
and the photoelectric sensing module is used for receiving the push rod displacement signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911398509.5A CN111190098A (en) | 2019-12-30 | 2019-12-30 | Relay fault detection method and detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911398509.5A CN111190098A (en) | 2019-12-30 | 2019-12-30 | Relay fault detection method and detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111190098A true CN111190098A (en) | 2020-05-22 |
Family
ID=70707850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911398509.5A Pending CN111190098A (en) | 2019-12-30 | 2019-12-30 | Relay fault detection method and detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111190098A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113671368A (en) * | 2021-10-25 | 2021-11-19 | 广东电网有限责任公司东莞供电局 | Relay circuit fault testing system and method |
| CN114137405A (en) * | 2021-11-25 | 2022-03-04 | 沃太能源股份有限公司 | Fault detection method for relay device and device thereof |
| CN114235675A (en) * | 2021-12-08 | 2022-03-25 | 潍柴动力股份有限公司 | Corrosion monitoring system and method for engine exhaust system |
| CN114236384A (en) * | 2021-12-10 | 2022-03-25 | 歌尔股份有限公司 | Method and device for generating sweep frequency characteristic curve and storage medium |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1107227A (en) * | 1994-02-16 | 1995-08-23 | 中国电力工业部电力科学研究院 | High-voltage breaker mechanic property testing system and on-line checking method |
| JP2001145217A (en) * | 1999-11-17 | 2001-05-25 | Nissin Electric Co Ltd | Method and device of diagnosing switching operation characteristics of switch |
| CN103050323A (en) * | 2011-10-14 | 2013-04-17 | 常州市明及电气技术开发有限公司 | Opening and closing speed monitoring method of intelligent vacuum circuit breaker |
| CN203881902U (en) * | 2013-11-26 | 2014-10-15 | 国家电网公司 | On-line monitoring system for current of switching-on and switching-off coil and travel of moving contact of high-voltage circuit breaker |
| CN105651503A (en) * | 2016-01-07 | 2016-06-08 | 广东电网有限责任公司电力科学研究院 | Acceleration variable monitoring-based breaker mechanical failure diagnosis method |
| CN205809249U (en) * | 2016-07-13 | 2016-12-14 | 新疆特变电工自控设备有限公司 | A kind of circuit breakers monitoring device |
| CN107478985A (en) * | 2017-08-21 | 2017-12-15 | 河海大学常州校区 | On-load tap changers of transformers state on_line monitoring device and its monitoring method |
| CN108692929A (en) * | 2018-04-24 | 2018-10-23 | 西安工程大学 | The monitoring system and monitoring method of breaker closing energy-stored spring state |
| CN110120043A (en) * | 2019-05-16 | 2019-08-13 | 国网冀北电力有限公司检修分公司 | A kind of method, apparatus, storage medium and computer equipment obtaining breaker performance data |
| CN110133492A (en) * | 2019-05-30 | 2019-08-16 | 沈阳工业大学 | A kind of high-voltage circuitbreaker electric operating mechanism on-Line Monitor Device and method |
-
2019
- 2019-12-30 CN CN201911398509.5A patent/CN111190098A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1107227A (en) * | 1994-02-16 | 1995-08-23 | 中国电力工业部电力科学研究院 | High-voltage breaker mechanic property testing system and on-line checking method |
| JP2001145217A (en) * | 1999-11-17 | 2001-05-25 | Nissin Electric Co Ltd | Method and device of diagnosing switching operation characteristics of switch |
| CN103050323A (en) * | 2011-10-14 | 2013-04-17 | 常州市明及电气技术开发有限公司 | Opening and closing speed monitoring method of intelligent vacuum circuit breaker |
| CN203881902U (en) * | 2013-11-26 | 2014-10-15 | 国家电网公司 | On-line monitoring system for current of switching-on and switching-off coil and travel of moving contact of high-voltage circuit breaker |
| CN105651503A (en) * | 2016-01-07 | 2016-06-08 | 广东电网有限责任公司电力科学研究院 | Acceleration variable monitoring-based breaker mechanical failure diagnosis method |
| CN205809249U (en) * | 2016-07-13 | 2016-12-14 | 新疆特变电工自控设备有限公司 | A kind of circuit breakers monitoring device |
| CN107478985A (en) * | 2017-08-21 | 2017-12-15 | 河海大学常州校区 | On-load tap changers of transformers state on_line monitoring device and its monitoring method |
| CN108692929A (en) * | 2018-04-24 | 2018-10-23 | 西安工程大学 | The monitoring system and monitoring method of breaker closing energy-stored spring state |
| CN110120043A (en) * | 2019-05-16 | 2019-08-13 | 国网冀北电力有限公司检修分公司 | A kind of method, apparatus, storage medium and computer equipment obtaining breaker performance data |
| CN110133492A (en) * | 2019-05-30 | 2019-08-16 | 沈阳工业大学 | A kind of high-voltage circuitbreaker electric operating mechanism on-Line Monitor Device and method |
Non-Patent Citations (1)
| Title |
|---|
| 马存乐 等: "基于加速度传感器测量高压断路器速度、位移特性的研究", 《电气技术》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113671368A (en) * | 2021-10-25 | 2021-11-19 | 广东电网有限责任公司东莞供电局 | Relay circuit fault testing system and method |
| CN114137405A (en) * | 2021-11-25 | 2022-03-04 | 沃太能源股份有限公司 | Fault detection method for relay device and device thereof |
| CN114235675A (en) * | 2021-12-08 | 2022-03-25 | 潍柴动力股份有限公司 | Corrosion monitoring system and method for engine exhaust system |
| CN114235675B (en) * | 2021-12-08 | 2023-12-15 | 潍柴动力股份有限公司 | Corrosion monitoring system and method for engine exhaust system |
| CN114236384A (en) * | 2021-12-10 | 2022-03-25 | 歌尔股份有限公司 | Method and device for generating sweep frequency characteristic curve and storage medium |
| CN114236384B (en) * | 2021-12-10 | 2023-10-03 | 歌尔股份有限公司 | Method, equipment and storage medium for generating sweep frequency characteristic curve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111190098A (en) | Relay fault detection method and detection system | |
| CN114184955B (en) | Motor fault detection method, system and storage medium | |
| CN107631863B (en) | high-voltage circuit breaker mechanical characteristic monitoring system and monitoring method thereof | |
| JP5240167B2 (en) | Switch diagnosis method and switch diagnosis device | |
| CN107515372A (en) | A kind of switchgear defect intelligent detection and analysis system | |
| CN110608661B (en) | Sensor detection circuit and method and magnetic suspension bearing system | |
| CN112986810A (en) | Mechanical characteristic analysis method, device and system suitable for circuit breaker and high-voltage switch | |
| CN104538233A (en) | State monitoring and early warning system and method for electric disconnecting link of transformer substation | |
| CN110426606B (en) | Power distribution network ground fault positioning method and device based on wide area synchronization | |
| CN109733238B (en) | Fault detection method, device, storage medium and processor | |
| CN107270970A (en) | Towering power equipment vibration monitoring device and its method for carrying out fault diagnosis | |
| US10295598B2 (en) | Method for determining the operating status of a spring charging motor for a LV or MV switching apparatus and a diagnostic system implementing said method | |
| CN110426624A (en) | The appraisal procedure and device of circuit-breaker status | |
| CN104502837A (en) | Diagnostic method and device for mechanical fault of circuit breaker | |
| CN104345233A (en) | On-line monitoring terminal and detection method for fault detection of power distribution transformer | |
| CN104764993A (en) | Detection method and device for high-voltage circuit breaker | |
| CN102507816B (en) | Method for detecting effectiveness of oil chromatogram online monitoring data | |
| CN110058156A (en) | Based on instantaneous three-phase voltage current degree of unbalancedness motor on-line monitoring method and system | |
| CN111183500B (en) | Method and device for monitoring circuit breaker and Internet of things using device | |
| CN109243652B (en) | System and method for judging validity of compressed air flow data of nuclear power station system | |
| CN104237671A (en) | Measuring System having at least One field Device with at Least One Display Apparatus as well as Method for Operating Same | |
| JP2003308751A (en) | Device for monitoring operating characteristic of switch | |
| CN107907764B (en) | Detection method and system suitable for intelligent characteristic verification of intelligent instrument | |
| CN207148285U (en) | A kind of switchgear Intelligent Measurement terminal | |
| Hashemi et al. | A Robust Approach for Inter-Turn Fault Detection of PMSM Used for Autonomous Vehicles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |