CN212229031U - Portable secondary circuit direct current signal monitoring devices - Google Patents
Portable secondary circuit direct current signal monitoring devices Download PDFInfo
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- CN212229031U CN212229031U CN202020721950.4U CN202020721950U CN212229031U CN 212229031 U CN212229031 U CN 212229031U CN 202020721950 U CN202020721950 U CN 202020721950U CN 212229031 U CN212229031 U CN 212229031U
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Abstract
The utility model discloses a portable secondary circuit direct current signal monitoring devices, it includes: the direct current signal processing module is communicated with the direct current signal acquisition module; the signal acquisition module acquires direct current signals in a using circuit in a contact or non-contact manner, performs analog-to-digital conversion on the acquired signals and then transmits the signals to the direct current signal data processing module in a wireless or wired manner; the direct current signal data processing module is provided with a processor, a signal receiving assembly, a signal sending assembly and an alarm system.
Description
The technical field is as follows:
the utility model relates to a portable secondary circuit direct current signal monitoring devices.
Background art:
in a relay protection tripping and closing control loop, if the conditions of screw loosening, pressure plate missing and the like occur, the conditions are not easy to be perceived, but once a fault occurs, the protection acts, but a breaker cannot trip, the override tripping is caused, and the accident range is enlarged; or the situation that the switch cannot be switched on occurs, the load loss can be caused.
At present, instruments for measuring direct current or alternating current signals in markets at home and abroad are various, a portable universal meter, an alternating current clamp meter, a direct current clamp meter and the like have analog and digital types, large-scale measuring and calibrating instruments or fault recording equipment are numerous, the technology is mature, and the instruments are widely used. However, no suitable tool is available for real-time online monitoring of the dc current signal in the control loop for fault location. All instruments which need to be connected with the instrument in series in a line in a power failure mode cannot be taken, a universal meter or a fault recorder capable of recording waveforms cannot be used, and only a clamp-on ammeter is suitable. However, the current clamp-on ammeter on the market is used for short-time measurement, has low response speed and short continuous working time, and cannot automatically record the direct current value in a control loop.
The invention content is as follows:
for overcoming prior art's defect, the utility model aims to provide a portable secondary circuit direct current signal monitoring devices is real-time through direct current amplitude information and default in the control circuit and do the contrast, to fault location, sends relevant warning information simultaneously. The abnormal fault of the control circuit can be predicted in advance, and the reason of the abnormal action of the circuit breaker can be accurately positioned.
The utility model provides a technical problem adopt following technical scheme:
a portable secondary circuit direct current signal monitoring device, comprising:
a direct current signal acquisition module and a direct current signal acquisition module,
the direct current signal data processing module is communicated with the direct current signal acquisition module;
the signal acquisition module acquires direct current signals in a using circuit in a contact or non-contact manner, performs analog-to-digital conversion on the acquired signals and then transmits the signals to the direct current signal data processing module in a wireless or wired manner;
the direct current signal data processing module is provided with a processor, a signal receiving assembly, a signal sending assembly and an alarm system.
Preferably, the detection device further comprises a background system in communication with the data processing module, wherein the background system is provided with a receiving unit in communication with the signal sending component, a storage module, an analysis module and a processor.
Preferably, further, the alarm system comprises an audible and visual alarm unit.
Preferably, the direct current signal acquisition module is inductively powered by a current transformer, is powered by a battery or is externally connected with an alternating current or direct current power supply.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
1. a novel portable secondary circuit direct current signal monitoring device is researched according to the actual field condition of a transformer substation, the time, the amplitude and other information of a direct current signal are automatically recorded, the direct current amplitude information in a control loop is compared with a preset value in real time, a fault is positioned, and related warning information is sent out at the same time. The abnormal fault of the control circuit can be predicted in advance, and the reason of the abnormal action of the circuit breaker can be accurately positioned.
2. This novel direct current signal monitoring device simple structure, convenient to use, and high intellectuality. The modules can be used independently or combined freely according to different use environments. Related data can be transmitted to a remote background through various data lines or various wireless networks, and the remote background can display the data monitoring condition of the novel direct current signal monitoring device in real time; if the monitoring data of the device exceeds the standard or is abnormal, the portable direct current signal monitoring device has the functions of on-site alarm through various modes such as sound, light, electricity and the like and alarm through a background.
Description of the drawings:
fig. 1 is a schematic diagram of the system of the present invention.
Reference numbers in the figures: the system comprises a signal acquisition module 1, a loop to be tested 2, a data processing module 3, a background system 4, a storage module 5 and an analysis module 6.
The present invention will be further described with reference to the following detailed description and accompanying drawings.
The specific implementation mode is as follows:
to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, the portable secondary circuit dc signal monitoring device of the present embodiment includes:
the dc signal collecting module 1 can collect the dc signal in the circuit to be tested, i.e. the loop 2, in a contact or non-contact manner, and the collecting principle is similar to that described in CN 205643597U, and is not described herein again. The direct current signal acquisition module is inductively powered by a current transformer, is powered by a battery or is externally connected with an alternating current or direct current power supply.
The acquisition module can perform analog-to-digital conversion on the acquired direct current signal and transmit the acquired direct current signal to the direct current signal data processing module 3, wherein the transmission mode includes but is not limited to wired transmission, wireless transmission and the like.
The direct current signal data processing module 2 is provided with a processor, an alarm system and the like, compares the received data with a preset value, and if the direct current signal data has deviation from the preset value or the data is abnormal, gives an alarm in a sound and light alarm mode, and can give an alarm in one or more sound, light, electricity and other modes according to different abnormal data conditions, and an operator can preliminarily judge the fault type according to the alarm mode.
Further, the data processing module can also communicate with the background system 4, the communication mode is not limited to wired communication or wireless communication, for example, a signal sending unit is arranged in the data processing module, and a signal receiving unit matched with the data sending unit is arranged in the background system 4. The background system 4 is also provided with a storage module 5, an analysis module 6, a central processing unit and the like, and compares and analyzes the received real-time state data and the data in the storage module to locate the fault, so that the abnormal fault of the control loop can be predicted in advance, and the reason of the abnormal action of the circuit breaker can be accurately located.
It should be noted that the detailed description of the present invention is not included in the prior art, or can be obtained directly from the market, and those skilled in the art can obtain the detailed description without creative efforts, and the detailed connection method has a very wide application in the field or daily life, and is not described in detail herein.
Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (4)
1. A portable secondary circuit direct current signal monitoring device is characterized by comprising:
a direct current signal acquisition module and a direct current signal acquisition module,
the direct current signal data processing module is communicated with the direct current signal acquisition module;
the signal acquisition module acquires direct current signals in a using circuit in a contact or non-contact manner, performs analog-to-digital conversion on the acquired signals and then transmits the signals to the direct current signal data processing module in a wireless or wired manner;
the direct current signal data processing module is provided with a processor, a signal receiving assembly, a signal sending assembly and an alarm system.
2. The device of claim 1, further comprising a background system in communication with the data processing module, the background system having a receiving unit in communication with the signal transmitting assembly, a storage module, an analysis module, and a processor.
3. The portable secondary loop direct current signal monitoring device as claimed in claim 1, wherein the alarm system comprises an audible and visual alarm unit.
4. The device of claim 1, wherein the dc signal collection module is inductively powered by a current transformer, battery powered, or powered by an external ac or dc power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020721950.4U CN212229031U (en) | 2020-05-06 | 2020-05-06 | Portable secondary circuit direct current signal monitoring devices |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020721950.4U CN212229031U (en) | 2020-05-06 | 2020-05-06 | Portable secondary circuit direct current signal monitoring devices |
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| Publication Number | Publication Date |
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| CN212229031U true CN212229031U (en) | 2020-12-25 |
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| CN202020721950.4U Active CN212229031U (en) | 2020-05-06 | 2020-05-06 | Portable secondary circuit direct current signal monitoring devices |
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