CN203643536U - Distribution line power monitoring system - Google Patents

Distribution line power monitoring system Download PDF

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Publication number
CN203643536U
CN203643536U CN201320888037.3U CN201320888037U CN203643536U CN 203643536 U CN203643536 U CN 203643536U CN 201320888037 U CN201320888037 U CN 201320888037U CN 203643536 U CN203643536 U CN 203643536U
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China
Prior art keywords
module
power supply
signal
microprocessor
distribution line
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CN201320888037.3U
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Chinese (zh)
Inventor
周郅琪
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SUOLING ELECTRIC CO Ltd
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SUOLING ELECTRIC CO Ltd
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Priority to CN201320888037.3U priority Critical patent/CN203643536U/en
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Abstract

The utility model discloses a distribution line power monitoring system, which comprises a sampling sensor, wherein the output end of the sampling sensor is connected to the input end of a signal sampling module through an operational amplification circuit, the output end of the signal sampling module is connected to a signal input end of a microprocessor through an analog-digital conversion circuit, a signal output end of the microprocessor is connected to a communication module through a level conversion circuit, the communication module is connected to a remote monitoring center, the output end of the microprocessor is further connected to a display module and a data storage module, and a power supply module provides power for the overall device. The distribution line power monitoring system completes real-time monitoring work for electric energy by using simple equipment with less equipment funds, and power supply is ensured to be reliable and stable.

Description

A kind of distribution line electrical energy monitoring system
Technical field
The utility model relates to electric energy detection field, relates in particular to a kind of for distribution line electrical energy monitoring system.
Background technology
Along with the rapid development of China's economy, the development of new high-tech industry, numerous power electronic equipment and consumer are more responsive to the quality of power supply, the economic loss that affected by the quality of power supply to cause is increasingly outstanding, more enterprise and power consumer are more and more higher to the requirement of power supply quality, therefore it is very important improving power supply quality, and country has also put into effect respective standard and relevant power rule of law successively, guarantees the quality of power supply.At present, existing electric energy detection device is varied, but there is the problem of a general character in great majority, be exactly that the infusion of financial resources amount of pick-up unit own is large, for different regions, imbalance of economy, economic input to each website is limited, can not reasonably detect, plan electric energy power supply quality, cause provincialism power supply instability, make customer power supply can not get ensureing.
Utility model content
The purpose of this utility model is to provide a kind of distribution line electrical energy monitoring system, can utilize simple equipment, and the equipment funds that less input complete the Real-Time Monitoring work of electric energy, guarantees the reliable, stable of power supply.
The technical solution adopted in the utility model is:
A kind of distribution line electrical energy monitoring system, comprise sampling sensor, the output terminal of sampling sensor connects the input end of signal sampling module by operational amplification circuit, the output terminal of signal sampling module connects the signal input part of microprocessor by analog to digital conversion, the signal output part of microprocessor is by level shifting circuit connecting communication module, communication module connects remote monitoring center, the output terminal of microprocessor is also connected with display module and data memory module, and power module is whole device power supply.
Described sampling sensor adopts current transformer and voltage transformer (VT).
Described power module comprises standby power supply and electrical source exchange module, and the input end of electrical source exchange module connects standby power supply and civil power, and the output terminal of electrical source exchange module is used to whole device power supply.
The utility model utilizes sampling sensor to gather electric current, the information of voltage in network system, again the information of collection is sent to microprocessor through computing, amplification, analog to digital conversion, show and store through microprocessor, send to communication module by level conversion again, send to remote detection center via communication module, utilize simple equipment, the equipment funds that less input, complete the Real-Time Monitoring work of electric energy, guarantee the reliable, stable of power supply.
Accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present utility model.
Embodiment
As shown in Figure 1, the utility model comprises sampling sensor, sampling sensor adopts current transformer and voltage transformer (VT), the output terminal of current transformer and voltage transformer (VT) is connected the input end of signal sampling module by operational amplification circuit, the output terminal of signal sampling module connects the signal input part of microprocessor by analog to digital conversion, the signal output part of microprocessor is by level shifting circuit connecting communication module, communication module connects remote monitoring center, the output terminal of microprocessor is also connected with display module and data memory module, power module comprises standby power supply and electrical source exchange module, the input end of electrical source exchange module connects standby power supply and civil power, the output terminal of electrical source exchange module is used to whole device power supply.
The utility model in use, obtains the three-phase current of distribution line by three high precision non-access formula FJHV type current transformers and three JSZW3-10KV type voltage transformer (VT), voltage sensing signal, is mainly the electrical energy parameter that gathers each monitoring point, and the electrical energy parameter signal of collection is transferred to computing, amplifying circuit, signal is amplified to processing, signal after treatment sends to signal sampling module, signal sampling module is for again sampling accurately to the signal after amplifying, what sample is simulating signal, and simulating signal is carried out to analog to digital conversion, carries out the amplifier of high-precision wide linearity, be converted to digital signal and send to microprocessor, the signal that microprocessor receives carries out discrete Fourier transformation analysis and obtains the voltage of distribution line, electric current, meritorious, idle, power factor, phase angle, the large power quality parameter of percent harmonic etc. seven, then the alarm set point arranging in advance in power quality parameter and microprocessor is compared, just can obtain real-time warning as superpotential, under-voltage, excess current, undercurrent, overload, phase shortage, short circuit etc.By their timing send into data-carrier store storage and show by display module, while can form all kinds of managerial reports at master system, facilitate staff to check intuitively.Data transmission, fault alarm and the call instruction of accepting host computer are set up communication link by GPRS communication receiving/transmission module or cable data transceiver module and remote monitoring center and are realized.
In power module system, be furnished with civil power, standby power supply, to ensure under distribution line off-position, can provide in time power alarm, enable standby power supply, guarantee the normal operation of system, increase work efficiency.

Claims (3)

1. a distribution line electrical energy monitoring system, it is characterized in that: comprise sampling sensor, the output terminal of sampling sensor connects the input end of signal sampling module by operational amplification circuit, the output terminal of signal sampling module connects the signal input part of microprocessor by analog to digital conversion, the signal output part of microprocessor is by level shifting circuit connecting communication module, communication module connects remote monitoring center, the output terminal of microprocessor is also connected with display module and data memory module, and power module is whole device power supply.
2. distribution line electrical energy monitoring system according to claim 1, is characterized in that: described sampling sensor adopts current transformer and voltage transformer (VT).
3. distribution line electrical energy monitoring system according to claim 2, it is characterized in that: described power module comprises standby power supply and electrical source exchange module, the input end of electrical source exchange module connects standby power supply and civil power, and the output terminal of electrical source exchange module is used to whole device power supply.
CN201320888037.3U 2013-12-31 2013-12-31 Distribution line power monitoring system Active CN203643536U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320888037.3U CN203643536U (en) 2013-12-31 2013-12-31 Distribution line power monitoring system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320888037.3U CN203643536U (en) 2013-12-31 2013-12-31 Distribution line power monitoring system

Publications (1)

Publication Number Publication Date
CN203643536U true CN203643536U (en) 2014-06-11

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320888037.3U Active CN203643536U (en) 2013-12-31 2013-12-31 Distribution line power monitoring system

Country Status (1)

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CN (1) CN203643536U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105092952A (en) * 2015-08-12 2015-11-25 国家电网公司 DC signal monitor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105092952A (en) * 2015-08-12 2015-11-25 国家电网公司 DC signal monitor

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