CN110879352B - Remote monitoring system, method and device for pressing state of switch energy storage mechanism - Google Patents
Remote monitoring system, method and device for pressing state of switch energy storage mechanism Download PDFInfo
- Publication number
- CN110879352B CN110879352B CN201911165231.7A CN201911165231A CN110879352B CN 110879352 B CN110879352 B CN 110879352B CN 201911165231 A CN201911165231 A CN 201911165231A CN 110879352 B CN110879352 B CN 110879352B
- Authority
- CN
- China
- Prior art keywords
- switch mechanism
- current
- split
- phase
- power supply
- 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
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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
Abstract
The application relates to a switch energy storage mechanism pressing state remote monitoring system, method and device. The remote monitoring system for the pressing state of the switch energy storage mechanism comprises a host, acquisition modules connected with the host and current transformers connected with the acquisition modules; the acquisition module is arranged in the switch mechanism box; the current transformer is arranged on a loop to be monitored of the switch mechanism box; the current transformer acquires a power supply current signal of a loop to be monitored and transmits the power supply current signal to the acquisition module; the acquisition module samples power supply current signals transmitted by each current transformer to obtain sampling data, and transmits the sampling data to the host; the host determines the current variation trend of the corresponding split-phase switch mechanism in the switch mechanism box according to the sampling data, and outputs a processing result based on the current variation trend. This application can accurately find unusual split-phase switching mechanism's position, in time ends the loss, and then improves the accuracy and the accuracy of monitoring result.
Description
Technical Field
The application relates to the technical field of equipment monitoring, in particular to a system, a method and a device for remotely monitoring the pressing state of a switch energy storage mechanism.
Background
At present, the number of times of pressing a switch mechanism (namely a switch energy storage mechanism) of a transformer substation within 1 day has a certain range requirement, if the number of times of pressing exceeds the required number of times, the mechanism needs to be further observed, and if the number of times of pressing is developing, the leakage point is developing, and the maintenance is needed. The current theoretical calculation shows that frequent pressing has little influence on the direct opening and closing performance of the circuit breaker basically, and as long as the pressure is not kept, the oil pressure leakage is zero. Generally, the ability to guarantee one reclosing is absolutely unproblematic.
However, according to the operation experience, the indirect influence on the hydraulic mechanism is large due to frequent pressing, and the damage of the hydraulic mechanism is treated as soon as possible, and the damage mainly comprises the following steps: (1) the V-shaped pad of the pressure storage cylinder is greatly abraded, so that oil leakage outside the piston rod or rubber powder in oil is easily increased; (2) the contact point of the contactor is seriously burnt; (3) the motor is started frequently due to large starting current, and the commutator is easy to burn; (4) due to frequent pressing caused by oil dirt, the abrasion between relative moving parts is intensified, the surface scratching chance is increased, internal leakage is caused, the breaking performance of the circuit breaker is influenced, and the oil dirt degree is intensified; (5) the oil contamination may affect the opening/closing capability of the switch.
In the implementation process, the inventor finds that at least the following problems exist in the conventional technology: at present, the monitoring result of the pressing state of the switch mechanism of the transformer substation is inaccurate, the accuracy is low, and an effective monitoring means is lacked.
Disclosure of Invention
Therefore, it is necessary to provide a system, a method and a device for remotely monitoring the pressing state of a switch energy storage mechanism, which can effectively improve the monitoring accuracy.
In order to achieve the above object, in one aspect, an embodiment of the present invention provides a remote monitoring system for a pressing state of a switch energy storage mechanism, including a host, each acquisition module connected to the host, and each current transformer connected to the acquisition module;
the acquisition module is arranged in the switch mechanism box; the current transformer is arranged on a loop to be monitored of the switch mechanism box;
the current transformer acquires a power supply current signal of a loop to be monitored and transmits the power supply current signal to the acquisition module;
the acquisition module samples power supply current signals transmitted by each current transformer to obtain sampling data, and transmits the sampling data to the host;
the host machine determines the current variation trend of the corresponding split-phase switch mechanism in the switch mechanism box according to the sampling data, and outputs a processing result based on the current variation trend; the processing result includes the pressing state and the number of times of pressing of the isolated phase switch mechanism.
In one embodiment, the power current signal is a phase current; the number of the current transformers is the same as that of the split-phase switch mechanisms in the switch mechanism box.
In one embodiment, the host comprises a CPU unit and a communication unit connected with the CPU unit; the communication unit is connected with each acquisition module;
the CPU unit receives the sampling data transmitted by each acquisition module through the communication unit; the sampled data includes a current amplitude;
the CPU unit performs Fourier transform analysis on each current amplitude to obtain processing data; and confirming the pressing state and the pressing times of the phase splitting switch mechanism according to the processing data.
In one embodiment, the host further comprises a display and operation unit connected with the CPU unit and an alarm node output unit;
and when the CPU unit confirms that the state of the switch mechanism is abnormal according to the processing result, the indication display and operation unit displays the abnormal state and indicates the alarm node output unit to output alarm information.
In one embodiment, the acquisition module comprises a CPU module, a CT signal acquisition unit and a communication module, wherein the CT signal acquisition unit and the communication module are connected with the CPU module; the communication module is connected with the host; the CT signal acquisition unit is connected with each current transformer;
and the CT signal acquisition unit samples the signals of the power supply current signals to obtain sampling data respectively corresponding to each split-phase switch mechanism.
In one embodiment, the CT signal acquisition unit is an 8-channel CT signal acquisition unit; the communication module is an RS485 port.
On one hand, the embodiment of the invention also provides a remote monitoring method for the pressing state of the switch energy storage mechanism, which comprises the following steps:
receiving sampling data transmitted by each acquisition module; sampling data is obtained by sampling each power supply current signal through an acquisition module; the power supply current signal is acquired by a current transformer arranged on a loop to be monitored in the switch mechanism box;
determining the current variation trend of the corresponding split-phase switching mechanism in the switching mechanism box according to the sampling data, and outputting a processing result based on the current variation trend; the processing result includes the pressing state and the number of times of pressing of the isolated phase switch mechanism.
In one embodiment, the sampled data includes a current magnitude;
the method comprises the following steps of determining the current change trend of a corresponding split-phase switch mechanism in a switch mechanism box according to each sampling data, and outputting a processing result based on the current change trend:
carrying out Fourier transform analysis on each current amplitude to obtain processing data; and confirming the pressing state and the pressing times of the split-phase switch mechanism according to the processing data.
A remote monitoring device for the pressing state of a switch energy storage mechanism comprises:
the receiving module is used for receiving the sampling data transmitted by each acquisition module; sampling data is obtained by sampling each power supply current signal through an acquisition module; the power supply current signal is acquired by a current transformer arranged on a loop to be monitored in the switch mechanism box;
the processing module is used for determining the current change trend of the corresponding split-phase switch mechanism in the switch mechanism box according to the sampling data and outputting a processing result based on the current change trend; the processing result includes the depressed state and the number of times of depression of the split-phase switching mechanism.
A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method of any of the above.
One of the above technical solutions has the following advantages and beneficial effects:
the method and the device can remotely monitor the pressing times and state analysis of the split-phase switch mechanisms, can determine which split-phase switch mechanism in the switch mechanism box is abnormal in pressing, can accurately find the position of the abnormal split-phase switch mechanism, and stop loss in time, thereby improving the accuracy and precision of the monitoring result; the application provides an effective monitoring means, which can realize remote communication and intelligent unmanned monitoring site; specifically, the method and the device have the advantages that the power supply current signal of the loop to be monitored (the loop to be monitored corresponds to the corresponding split-phase switch mechanism) is detected, the current change trend of the switch mechanism is further obtained, the pressing condition and the state of the split-phase switch mechanism are analyzed, and the corresponding processing result is output. In addition, the method and the device can judge whether the range requirement of the pressing times within 1 day is exceeded or not by detecting the current times, judge that the state of the switch mechanism is abnormal if the range requirement is exceeded, and output an alarm if the state is unreliable.
Drawings
The foregoing and other objects, features and advantages of the application will be apparent from the following more particular description of preferred embodiments of the application, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intended to be drawn to scale in actual dimensions, emphasis instead being placed upon illustrating the subject matter of the present application.
FIG. 1 is a first schematic block diagram of a remote monitoring system for the state of depression of a switch energy storage mechanism in one embodiment;
FIG. 2 is a second schematic block diagram of a system for remotely monitoring the pressing state of a switch energy storage mechanism in one embodiment;
FIG. 3 is a schematic diagram of a host in the remote monitoring system for the pressing state of the switch energy storage mechanism in one embodiment;
FIG. 4 is a schematic diagram of an acquisition module in the remote monitoring system for the pressing state of the switch energy storage mechanism in one embodiment;
FIG. 5 is a schematic circuit diagram of a current transformer in the remote monitoring system for the pressing state of the switch energy storage mechanism in one embodiment;
fig. 6 is a schematic flow chart of a method for remotely monitoring a pressing state of a switch energy storage mechanism in one embodiment.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are shown in the drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element and be integral therewith, or intervening elements may also be present. The terms "set," "acquired," "including," and the like as used herein, are for purposes of description only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The traditional transformer substation switching mechanism has more problems in monitoring the current situation; for example, the monitoring may monitor the state of the switch mechanism, but the three-phase mechanism is not clear which phase mechanism starts to be pressed, and the monitoring result of the state of the switch mechanism is not accurate; for another example, a hidden problem such as mechanical jamming exists in the switching mechanism, an actual monitoring means is lacked, and the problem is often discovered only after being exposed. The scheme capable of detecting the pressing times of the split-phase switch mechanism and analyzing the state is provided.
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In one embodiment, as shown in fig. 1, a remote monitoring system for the pressing state of a switch energy storage mechanism is provided, which includes a host, acquisition modules connected to the host, and current transformers connected to the acquisition modules;
the acquisition module is arranged in the switch mechanism box; the current transformer is arranged on a loop to be monitored of the switch mechanism box;
the current transformer acquires a power supply current signal of a loop to be monitored and transmits the power supply current signal to the acquisition module;
the acquisition module samples power supply current signals transmitted by each current transformer to obtain sampling data, and transmits the sampling data to the host;
the host machine determines the current variation trend of the corresponding split-phase switch mechanism in the switch mechanism box according to the sampling data, and outputs a processing result based on the current variation trend; the processing result includes the depressed state and the number of times of depression of the split-phase switching mechanism.
Specifically, the system can include a host, an acquisition module, and a CT (Current transformer); the current transformer is used for measuring the position of a detection target, and in a specific example, a power supply current analog quantity signal of the switch mechanism can be measured and transmitted to the acquisition module; the acquisition module is used for sampling the power supply current data of the scattered field switching mechanism (namely acquiring sampling data), completing analog-to-digital conversion and transmitting the data to the host; the host machine is used for processing the sampling data of each switch mechanism so as to judge whether the switch mechanism is pressed or not and realize display, storage and alarm. The pressing state of the split-phase switch mechanism can comprise an abnormal state and a normal state; and the number of times of pressing may be determined based on the number of times the current is reached.
In a switchgear of a phase line in this application, current transformer can install in the mechanism case and be monitored on the return circuit (treating promptly to monitor the return circuit). In general, industrial electricity uses three-phase sinusoidal alternating current, and current phases (reflecting the direction and magnitude of current) are different from each other by 120 degrees, and each such conductor may be referred to as a phase line in the present application.
In a specific embodiment, the supply current signal is a phase current; the switch mechanism is supplied power by three-phase current, and this application proposes a switch mechanism and can sets up 3 openings to make CT detect its supply current respectively, carry out high-speed and high accurate sampling to gathering the module to the current signal transmission who detects, the host computer is carried out corresponding data processing to corresponding port transmission of rethread. It should be noted that, three-phase current passes through three wires, each wire is used as a loop of the other two wires, and the phase difference of the three components is one third of a period or current with a phase angle of 120 ° in sequence.
Further, as shown in fig. 1, one switch mechanism box may be installed with one or more acquisition modules, specifically depending on the number of CTs; in a particular embodiment, the number of current transformers is the same as the number of split-phase switchgear in the switchgear enclosure. This application proposes to choose for use CT according to the quantity of mechanism case phase splitting mechanism promptly, for example, 16 collection modules can be accessed to the complete set system at most (i.e. m in fig. 1 can take the value 16), 8 CT can be accessed to every collection module at most (i.e. n in fig. 1 can take the value 8). And then make this application can accurately find the position of unusual phase separation switch mechanism, in time ends the loss.
Furthermore, the communication among the host, the acquisition module and the CT can be realized by adopting 485 and other wireless communication modes; the method and the device have the advantages that not only is the function of measuring multiple signals realized, but also a remote signal transmission mode is provided. The power current signals are sequentially processed by the acquisition module and the host, and are transmitted in a remote mode, so that the method has the characteristics of high measurement precision, high stability and high anti-interference performance, can conveniently realize transmission relay and flexible conversion of the signals, and is suitable for complex detected environments of the transformer substation.
Therefore, the method and the device can remotely monitor the pressing times and state analysis of the split-phase switch mechanisms, can clearly determine which split-phase switch mechanism in the switch mechanism box is abnormal in pressing, can accurately find the position of the abnormal split-phase switch mechanism, and can stop loss in time, thereby improving the accuracy and precision of the monitoring result; the application provides an effective monitoring means, which can realize remote communication and intelligent unmanned monitoring site; specifically, the method and the device have the advantages that the power supply current signal of the loop to be monitored (the loop to be monitored corresponds to the corresponding split-phase switch mechanism) is detected, the current change trend of the switch mechanism is further obtained, the pressing condition and the state of the split-phase switch mechanism are analyzed, and the corresponding processing result is output. In addition, the method and the device can judge whether the range requirement of the pressing times within 1 day is exceeded or not by detecting the current times, judge that the state of the switch mechanism is abnormal if the range requirement is exceeded, and output an alarm if the state is unreliable.
In one embodiment, as shown in fig. 2, a remote monitoring system for the pressing state of a switch energy storage mechanism is provided, which includes a host, acquisition modules connected to the host, and current transformers connected to the acquisition modules; the acquisition module is arranged in the switch mechanism box; the current transformer is arranged on a loop to be monitored of the switch mechanism box;
the current transformer acquires a power supply current signal of a loop to be monitored and transmits the power supply current signal to the acquisition module; the acquisition module samples power supply current signals transmitted by each current transformer to obtain sampling data, and transmits the sampling data to the host; the host machine determines the current variation trend of the corresponding split-phase switching mechanism in the switching mechanism box according to the sampling data, and outputs a processing result based on the current variation trend; the processing result includes the pressing state and the number of times of pressing of the isolated phase switch mechanism.
In a specific embodiment, the host includes a Central Processing Unit (CPU) unit, and a communication unit connected to the CPU unit; the communication unit is connected with each acquisition module;
the CPU unit receives the sampling data transmitted by each acquisition module through the communication unit; the sampled data includes a current amplitude; the CPU unit performs Fourier transform analysis on each current amplitude to obtain processing data; and confirming the pressing state and the pressing times of the split-phase switch mechanism according to the processing data.
In a specific embodiment, the host further comprises a display and operation unit connected with the CPU unit, and an alarm node output unit;
and when the CPU unit confirms that the state of the switch mechanism is abnormal according to the processing result, the indication display and operation unit displays the abnormal state and indicates the alarm node output unit to output alarm information.
In a specific embodiment, the acquisition module comprises a CPU module, and a CT signal acquisition unit and a communication module which are connected with the CPU module; the communication module is connected with the host; the CT signal acquisition unit is connected with each current transformer; and the CT signal acquisition unit samples the signals of the power supply current signals to obtain sampling data respectively corresponding to each split-phase switch mechanism.
In a specific embodiment, the CT signal acquisition unit is an 8-channel CT signal acquisition unit; the communication module is an RS485 port.
Specifically, as shown in fig. 2, the application provides a system for remotely monitoring the number of times of pressing the phase-splitting switch mechanism and analyzing the state of the phase-splitting switch mechanism, which can detect the phase line current of the phase-splitting switch mechanism in the switch mechanism, monitor the phase line current change trend of the phase-splitting switch mechanism, and further analyze the pressing condition and the state of the phase-splitting switch mechanism. Specifically, whether the range requirement of the pressing frequency within 1 day is exceeded or not can be judged through the frequency of the detected current, if the range requirement is exceeded, the state of the switch mechanism is judged to be abnormal, and if the state is judged to be unreliable, an alarm is output.
Further, as shown in fig. 3, a hardware structure of the host in the present application may include a CPU (also referred to as a CPU unit), a debugging unit, a USB (Universal Serial Bus) downloading unit, an sd (secure Digital Memory card) card storage unit, a 485 communication unit, a display and operation unit (i.e., a display unit, a key control unit), a power supply unit, and an alarm node output unit (i.e., an alarm terminal). Specifically, the CPU in the host computer of the present application can be implemented by using a chip with model number STM32F103ZET 6. The debugging unit may be implemented by a JTAG (Joint Test Action Group) debugging unit.
The CPU in the host machine can analyze the amplitude of each group of current through fast Fourier transform, judge the calculation result, judge whether the phase separation mechanism is pressed or not, and display, store and alarm the judgment result and the collected data.
In a specific example, as shown in fig. 4, the acquisition module may include a CPU (i.e., a CPU module), a power module, a CT signal acquisition unit, a JTAG debug module, and a communication module. The CT signal acquisition unit can be realized by adopting an 8-way CT signal acquisition unit, and then the signal acquisition of the power current of each group of split-phase pressurizing mechanisms is completed. And the communication module can be an RS485 port.
Wherein, the CPU of the acquisition module can also realize the signal processing flow; specifically, the CPU of the acquisition module analyzes the amplitude of each group of current through fast Fourier transform, judges a calculation result, judges whether the phase splitting mechanism is pressed or not, and uploads the judgment result and the acquired data to the host computer for displaying, storing and alarming. The CPU of the module is gathered to this application can adopt the model to realize for STM32F103ZET 6's chip.
In one embodiment, in order to improve the measurement accuracy, the application also provides a high-accuracy CT applied to the remote monitoring system for the pressing state of the switch energy storage mechanism; the current transformer (i.e., CT) in the present application may be based on the principle of electromagnetic induction. The current transformer is a transformation device which is composed of a closed iron core and a winding, changes large current on a primary side into a transformation device which is suitable for being used by an instrument or a relay according to a proportion, and has a rated current of 5A/1A. As important equipment for electric energy metering and relay protection in an electric power system, the precision and the reliability of the current transformer are closely related to the safe and reliable operation of the electric power system.
As shown in FIG. 5, in the signal processing circuit of the current transformer in the application, a current signal is subjected to input protection and then is input through the reverse input end of the amplifier, the positive input end of the operational amplifier is designed to have a high voltage level, the signal is amplified and then passes through a filter, and finally, AD conversion is performed to complete sampling, so that the current of 1-10A can be accurately sampled.
Therefore, the method and the device can remotely monitor the pressing times and state analysis of the split-phase switch mechanisms, can clearly determine which split-phase switch mechanism in the switch mechanism box is abnormal in pressing, can accurately find the position of the abnormal split-phase switch mechanism, and can stop loss in time, thereby improving the accuracy and precision of the monitoring result; the application provides an effective monitoring means, which can realize remote communication and intelligent unmanned monitoring site; specifically, the method and the device can be used for acquiring the current change trend of the switch mechanism by detecting the power supply current signal of the loop to be monitored (the loop to be monitored corresponds to the corresponding split-phase switch mechanism), so that the pressing condition and the state of the split-phase switch mechanism can be analyzed, and a corresponding processing result can be output. In addition, the method and the device can judge whether the range requirement of the pressing times within 1 day is exceeded or not by detecting the current times, judge that the state of the switch mechanism is abnormal if the range requirement is exceeded, and output an alarm if the state is unreliable.
It will be appreciated by those skilled in the art that the configurations shown in fig. 1-5 are merely block diagrams of some configurations relevant to the present teachings and do not constitute a limitation on the devices to which the present teachings may be applied, and that a particular device may include more or less components than those shown, or combine certain components, or have a different arrangement of components.
In one embodiment, as shown in fig. 6, a method for remotely monitoring the pressing state of a switch energy storage mechanism is provided, which is described by taking the method as an example applied to the host in fig. 1, and comprises the following steps:
step S610, receiving sampling data transmitted by each acquisition module; sampling data is obtained by sampling each power supply current signal through an acquisition module; the power supply current signal is acquired by a current transformer arranged on a loop to be monitored in the switch mechanism box;
step S620, determining the current variation trend of the corresponding split-phase switch mechanism in the switch mechanism box according to the sampling data, and outputting a processing result based on the current variation trend; the processing result includes the pressing state and the number of times of pressing of the isolated phase switch mechanism.
In a particular embodiment, the sampled data includes a current magnitude;
the step of determining the current variation trend of the corresponding split-phase switching mechanism in the switching mechanism box according to the sampling data, and outputting the processing result based on the current variation trend may include:
carrying out Fourier transform analysis on each current amplitude to obtain processing data; and confirming the pressing state and the pressing times of the split-phase switch mechanism according to the processing data.
By the method, the pressing times and the state analysis of the split-phase switch mechanisms can be remotely monitored, and specific split-phase switch mechanism in the switch mechanism box can be determined, so that the position of the abnormal split-phase switch mechanism can be accurately found, the loss can be timely stopped, and the accuracy and the precision of a monitoring result can be further improved; the application provides an effective monitoring means, which can realize remote communication and intelligent unmanned monitoring site; specifically, the method and the device have the advantages that the power supply current signal of the loop to be monitored (the loop to be monitored corresponds to the corresponding split-phase switch mechanism) is detected, the current change trend of the switch mechanism is further obtained, the pressing condition and the state of the split-phase switch mechanism are analyzed, and the corresponding processing result is output. In addition, the method and the device can judge whether the range requirement of the pressing times within 1 day is exceeded or not by detecting the current times, judge that the state of the switch mechanism is abnormal if the range requirement is exceeded, and output an alarm if the state is unreliable.
It should be understood that, although the steps in the flowchart of fig. 6 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in fig. 6 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
In one embodiment, a remote monitoring device for the pressing state of a switch energy storage mechanism is provided, which comprises:
the receiving module is used for receiving the sampling data transmitted by each acquisition module; sampling data is obtained by sampling each power supply current signal through an acquisition module; the power supply current signal is acquired by a current transformer arranged on a loop to be monitored in the switch mechanism box;
the processing module is used for determining the current change trend of the corresponding split-phase switch mechanism in the switch mechanism box according to the sampling data and outputting a processing result based on the current change trend; the processing result includes the depressed state and the number of times of depression of the split-phase switching mechanism.
For specific limitations of the device for remotely monitoring the pressing state of the switch energy storage mechanism, reference may be made to the above limitations of the method for remotely monitoring the pressing state of the switch energy storage mechanism, and details are not described here. All modules in the switch energy storage mechanism pressing state remote monitoring device can be wholly or partially realized through software, hardware and a combination of the software and the hardware. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored, and the computer program, when executed by a processor, implements the steps of any one of the methods for remotely monitoring the pressing state of a switch energy storage mechanism.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include non-volatile and/or volatile memory. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (7)
1. A remote monitoring system for the pressing state of a switch energy storage mechanism is characterized by comprising a host, acquisition modules connected with the host, and current transformers connected with the acquisition modules;
the acquisition module is arranged in the switch mechanism box; the current transformer is arranged on a loop to be monitored of the switch mechanism box; the current transformer is arranged at any opening of the split-phase switch mechanism in the switch mechanism box; the number of the current transformers is the same as that of the split-phase switch mechanisms in the switch mechanism box;
the current transformer acquires a power supply current signal of the loop to be monitored and transmits the power supply current signal to the acquisition module; the power supply current signal is phase line current;
the acquisition module is used for sampling the power supply current signals transmitted by the current transformers to obtain sampling data and transmitting the sampling data to the host;
the host machine determines the current variation trend of the corresponding split-phase switch mechanism in the switch mechanism box according to the sampling data, and outputs a processing result based on the current variation trend; the processing result comprises the pressing state and the pressing times of the split-phase switch mechanism; the host comprises a CPU unit and a communication unit connected with the CPU unit; the communication unit is connected with each acquisition module; the CPU unit receives the sampling data transmitted by each acquisition module through the communication unit; the sampled data comprises a current amplitude; the CPU unit performs Fourier transform analysis on each current amplitude to obtain processing data; and confirming the pressing state and the pressing times of the split-phase switch mechanism according to the processing data.
2. The remote monitoring system for the pressing state of the switch energy storage mechanism according to claim 1, wherein the host further comprises a display and operation unit and an alarm node output unit which are connected with the CPU unit;
and when the CPU unit confirms that the state of the switch mechanism is abnormal according to the processing result, the CPU unit instructs the display and operation unit to display the abnormal state and instructs the alarm node output unit to output alarm information.
3. The remote monitoring system for the pressing state of the switch energy storage mechanism according to claim 1, wherein the acquisition module comprises a CPU module, and a CT signal acquisition unit and a communication module which are connected with the CPU module; the communication module is connected with the host; the CT signal acquisition unit is connected with each current transformer;
and the CT signal acquisition unit is used for carrying out signal sampling on each power supply current signal to obtain the sampling data respectively corresponding to each split-phase switch mechanism.
4. The remote monitoring system for the pressing state of the switch energy storage mechanism according to claim 3, wherein the CT signal acquisition unit is an 8-channel CT signal acquisition unit; the communication module is an RS485 port.
5. A remote monitoring method for the pressing state of a switch energy storage mechanism is characterized by comprising the following steps:
receiving sampling data transmitted by each acquisition module; the sampling data is obtained by sampling each power supply current signal through the acquisition module; the power supply current signal is acquired by a current transformer arranged on a loop to be monitored in the switch mechanism box; the current transformer is arranged at any opening of the split-phase switch mechanism in the switch mechanism box; the number of the current transformers is the same as that of the split-phase switch mechanisms in the switch mechanism box; the power supply current signal is phase line current;
determining the current variation trend of the corresponding split-phase switch mechanism in the switch mechanism box according to the sampling data, and outputting a processing result based on the current variation trend; the processing result comprises the pressing state and the pressing times of the split-phase switch mechanism; wherein the sampled data comprises a current amplitude; determining the current variation trend of the corresponding split-phase switch mechanism in the switch mechanism box according to the sampling data, and outputting a processing result based on the current variation trend, wherein the processing result comprises the following steps: carrying out Fourier transform analysis on each current amplitude to obtain processing data; and confirming the pressing state and the pressing times of the split-phase switch mechanism according to the processing data.
6. A remote monitoring device for the pressing state of a switch energy storage mechanism is characterized by comprising:
the receiving module is used for receiving the sampling data transmitted by each acquisition module; the sampling data is obtained by sampling each power supply current signal through the acquisition module; the power supply current signal is acquired by a current transformer arranged on a loop to be monitored in the switch mechanism box; the current transformer is arranged at any opening of the split-phase switch mechanism in the switch mechanism box; the number of the current transformers is the same as that of the split-phase switch mechanisms in the switch mechanism box; the power supply current signal is phase line current;
the processing module is used for determining the current change trend of the corresponding split-phase switch mechanism in the switch mechanism box according to the sampling data and outputting a processing result based on the current change trend; the processing result comprises the pressing state and the pressing times of the split-phase switch mechanism; wherein the sampled data comprises a current amplitude; the processing module is used for carrying out Fourier transform analysis on each current amplitude to obtain processing data; and confirming the pressing state and the pressing times of the split-phase switch mechanism according to the processing data.
7. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method as claimed in claim 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911165231.7A CN110879352B (en) | 2019-11-25 | 2019-11-25 | Remote monitoring system, method and device for pressing state of switch energy storage mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911165231.7A CN110879352B (en) | 2019-11-25 | 2019-11-25 | Remote monitoring system, method and device for pressing state of switch energy storage mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110879352A CN110879352A (en) | 2020-03-13 |
| CN110879352B true CN110879352B (en) | 2022-07-12 |
Family
ID=69729527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911165231.7A Active CN110879352B (en) | 2019-11-25 | 2019-11-25 | Remote monitoring system, method and device for pressing state of switch energy storage mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110879352B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111749951B (en) * | 2020-05-19 | 2022-07-22 | 深圳供电局有限公司 | Hydraulic mechanism fault monitoring method and device, computer equipment and storage medium |
| CN111811793A (en) * | 2020-06-08 | 2020-10-23 | 深圳供电局有限公司 | Hydraulic mechanism monitoring method and device |
| CN113203945B (en) * | 2021-04-26 | 2023-02-03 | 深圳供电局有限公司 | Circuit breaker energy storage loop fault judgment method and fault recorder |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102710014A (en) * | 2012-05-24 | 2012-10-03 | 北京四方继保自动化股份有限公司 | Mechanical characteristic condition monitoring device for circuit breaker based on IEC61850 |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2456176Y (en) * | 2000-12-04 | 2001-10-24 | 王农 | Circuit breaker online monitor |
| US7561396B2 (en) * | 2004-03-09 | 2009-07-14 | Samsung Measuring Instruments Co., LTD | Apparatus for monitoring open state of the secondary terminals of a current transformer |
| CN102142719B (en) * | 2011-04-28 | 2013-04-10 | 武汉英康铁路电气设备工程有限公司 | Method for integration and data processing of insulated on-line monitoring system of transformer substation |
| CN202533529U (en) * | 2012-03-31 | 2012-11-14 | 上海市电力公司 | High-voltage equipment on-line monitoring system |
| CN102636710A (en) * | 2012-03-31 | 2012-08-15 | 上海市电力公司 | Online monitoring system of high-voltage equipment |
| CN202631704U (en) * | 2012-07-04 | 2012-12-26 | 广西电网公司电力科学研究院 | Online monitoring system for vibration and mechanical properties of high-voltage circuit breaker |
| CN103580282B (en) * | 2013-10-24 | 2017-01-18 | 深圳供电局有限公司 | Primary equipment intelligent interface device in substation |
| CN104538233B (en) * | 2014-12-25 | 2017-04-19 | 广州供电局有限公司变电管理一所 | State monitoring and early warning system and method for electric disconnecting link of transformer substation |
| CN104502839A (en) * | 2014-12-31 | 2015-04-08 | 广东电网有限责任公司中山供电局 | Split-phase stored energy monitoring system for three-phase circuit breaker |
| CN104810926B (en) * | 2015-05-06 | 2016-09-28 | 杨启蓓 | Electrical network primary cut-out various dimensions big data analysis intelligent expert system |
| CN105914874A (en) * | 2015-11-17 | 2016-08-31 | 深圳供电局有限公司 | Secondary interface device of transformer substation |
| WO2017127249A1 (en) * | 2016-01-22 | 2017-07-27 | Locus Energy, Inc. | Distributed energy generation and consumption monitoring and reporting device with modular communication upgradability and protection domains in hardware |
| CN105823983A (en) * | 2016-05-06 | 2016-08-03 | 国家电网公司 | Mechanical characteristic state on-line monitoring system for high voltage breaker |
| CN206209068U (en) * | 2016-09-28 | 2017-05-31 | 中国南方电网有限责任公司超高压输电公司曲靖局 | A kind of relay with wireless transmission function suppresses number of times harvester |
| KR102225851B1 (en) * | 2017-03-10 | 2021-03-11 | 미쓰비시덴키 가부시키가이샤 | Electronic circuit breaker |
| CN110425197A (en) * | 2019-08-20 | 2019-11-08 | 中国南方电网有限责任公司超高压输电公司昆明局 | Hydraulic Mechanism of Circuit-breaker energy-storage module detection device |
-
2019
- 2019-11-25 CN CN201911165231.7A patent/CN110879352B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102710014A (en) * | 2012-05-24 | 2012-10-03 | 北京四方继保自动化股份有限公司 | Mechanical characteristic condition monitoring device for circuit breaker based on IEC61850 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110879352A (en) | 2020-03-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110879352B (en) | Remote monitoring system, method and device for pressing state of switch energy storage mechanism | |
| CN107631863B (en) | high-voltage circuit breaker mechanical characteristic monitoring system and monitoring method thereof | |
| CN104538233A (en) | State monitoring and early warning system and method for electric disconnecting link of transformer substation | |
| CN101208845B (en) | Fault current analyser for detecting a fault current and a fault current detection device | |
| CN100583586C (en) | Unbalanced protection method and device for high-voltage serial connection compensation capacitor group | |
| CN106291219B (en) | Single-phase grounding/PT wire breakage fault automatic judging and alarming device and method | |
| KR100931992B1 (en) | Metal enclosed switchgear system and method for diagnosis by oneself insulation aging and abnormal temperature | |
| CN103630797A (en) | Interturn short circuit detecting device of transformer | |
| CN115327363B (en) | Method for carrying out live monitoring and state identification on mechanical characteristics of high-voltage circuit breaker | |
| CN109186988A (en) | A kind of mechanical parameter integrated test system and its measuring method for high voltage isolator | |
| CN112526240A (en) | Non-contact broadband overvoltage online monitoring device | |
| CN105067878A (en) | Transformer power characteristic live-line tester | |
| Zhou et al. | Defect diagnosis of disconnector based on wireless communication and support vector machine | |
| CN211043532U (en) | Transformer test system | |
| CN211528624U (en) | Remote monitoring system for pressing state of switch energy storage mechanism | |
| CN105938186B (en) | Apparatus and method for field testing of electrical panel instrumentation systems | |
| CN209280879U (en) | A kind of fuser belt electrical measurement test system and breaker based on noncontacting proximity sensor | |
| CN207779463U (en) | A kind of intellectual monitoring module of ring main unit | |
| CN107589330B (en) | Live detection system and method for loss of power transformer | |
| CN204789749U (en) | Transformer power characteristic live test appearance | |
| CN211348414U (en) | Induction electricity-taking electric temperature monitoring device | |
| CN112763828A (en) | Fault monitoring device, intelligent energy gateway and fault monitoring method | |
| CN110244127B (en) | Device and method for testing frequency sweeping impedance of transformer | |
| CN201637830U (en) | Online motor insulation monitor | |
| KR101413788B1 (en) | Method and apparratus of malfunction detection of transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200922 Address after: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Applicant after: Guangzhou Power Supply Bureau of Guangdong Power Grid Co.,Ltd. Address before: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Applicant before: GUANGZHOU POWER SUPPLY Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |