CN202614831U - Transient overvoltage on-line monitoring system - Google Patents

Transient overvoltage on-line monitoring system Download PDF

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Publication number
CN202614831U
CN202614831U CN 201220107456 CN201220107456U CN202614831U CN 202614831 U CN202614831 U CN 202614831U CN 201220107456 CN201220107456 CN 201220107456 CN 201220107456 U CN201220107456 U CN 201220107456U CN 202614831 U CN202614831 U CN 202614831U
Authority
CN
China
Prior art keywords
monitoring
transient
line monitoring
partial pressure
transient overvoltage
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.)
Expired - Lifetime
Application number
CN 201220107456
Other languages
Chinese (zh)
Inventor
金珩
司文荣
贺林
杨凌辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Municipal Electric Power Co
East China Power Test and Research Institute Co Ltd
Original Assignee
Shanghai Municipal Electric Power Co
East China Power Test and Research Institute Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Municipal Electric Power Co, East China Power Test and Research Institute Co Ltd filed Critical Shanghai Municipal Electric Power Co
Priority to CN 201220107456 priority Critical patent/CN202614831U/en
Application granted granted Critical
Publication of CN202614831U publication Critical patent/CN202614831U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a transient overvoltage on-line monitoring system which is connected with a power grid. The monitoring system comprises partial pressure sensors, an isolation protector, a transient voltage recorder and an industrial control computer which are sequentially connected. The partial pressure sensors are connected with the power grid. Compared with the prior art, the monitoring system provided in the utility model has the advantages of dynamically collecting voltage signals of the power grid in a real-time manner and performing real-time overvoltage monitoring on the power grid system, etc.

Description

A kind of transient overvoltage on-line monitoring system
Technical field
The utility model relates to a kind of power network overvoltage monitoring system, especially relates to a kind of transient overvoltage on-line monitoring system.
Background technology
At present, inner along with power system development in electric system, recognized transient state process of electric power system very early, i.e. Hyper-Voltage of Power Systems is to the influence of insulation of electrical installation.Therefore very necessary when monitoring in real time for the superpotential of electrical network, also received people's attention.
For example; One Chinese patent application numbers 200510057043.4; The applying date is on April 30th, 2005; The name of innovation and creation is called " power distribution network over-voltage on-line monitoring device and method ", and this application case discloses a kind of device, comprises high-voltage bleeder, signal pre-processing circuit; Trigger circuit, data collecting card, working power, industrial control computer and connect high-voltage bleeder and signal pre-processing circuit, trigger circuit concentric cable, be connected the signal cable of signal pre-processing circuit, trigger circuit and data collecting card.
One Chinese patent application numbers 201020162307.9; The applying date is on April 19th, 2010, and the name of innovation and creation is called " power network overvoltage monitoring device ", and this application case discloses a kind of device; Comprise voltage transformer (VT), over-current over-voltage protection unit, partial pressure unit, isolated location, data acquisition unit, host computer; Display unit, voltage transformer (VT) are connected on the high voltage bus of electrical network, and the secondary side of voltage transformer (VT) connects the over-current over-voltage protection unit; Over-current over-voltage protection unit, isolated location, data acquisition unit, host computer are connected successively, and host computer connects display unit.
Existing these technology have solved the subproblem of over-voltage monitoring from different angles, but they all fail to solve well the problem of the preservation and the transmission of data.
The utility model content
The purpose of the utility model is exactly for the defective that overcomes above-mentioned prior art existence a kind of transient overvoltage on-line monitoring system to be provided.
The purpose of the utility model can realize through following technical scheme:
A kind of transient overvoltage on-line monitoring system; This monitoring system is connected with electrical network; It is characterized in that described monitoring system comprises partial pressure sensor, Isolation protector, transient voltage registering instrument and the industrial computer that connects successively, described partial pressure sensor is connected with electrical network.
Described partial pressure sensor is connected with Isolation protector through transmission cable.
Described transient voltage registering instrument comprises A/D converter and storer, and described A/D converter is connected with storer, Isolation protector, industrial computer respectively.
Described A/D converter is connected with industrial computer through telecommunication cable.
Compared with prior art; The utlity model has Real-time and Dynamic and gather the voltage signal of electrical network; Network system is carried out real-time over-voltage monitoring, the amplitude of each phase voltage, waveform and the various parameter before and after the fault when writing down and preserving the transient overvoltage generation simultaneously, easy access.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is elaborated.
Embodiment
As shown in Figure 1; A kind of transient overvoltage on-line monitoring system; This monitoring system is connected with electrical network 1, and described monitoring system comprises partial pressure sensor 2, Isolation protector 4, transient voltage registering instrument 5 and the industrial computer 7 that connects successively, and described partial pressure sensor 2 is connected with electrical network 1.Described partial pressure sensor 2 is connected with Isolation protector 4 through transmission cable 3.Described transient voltage registering instrument 5 comprises A/D converter and storer, and described A/D converter is connected with storer, Isolation protector 4, industrial computer 7 respectively.Described A/D converter is connected with industrial computer 7 through telecommunication cable 6.
The utility model by means of Signal Collection Technology, is monitored the voltage disturbance of network system through partial pressure sensor 2 in real time, the amplitude of each phase voltage, waveform and the various parameter before and after the fault when record and preservation transient overvoltage take place.And have signal Processing and parameter extraction, application and analyze (warning, the inquiry of historical data and statistics etc.) function.Industrial computer 7 also can pass through Ethernet or other communication modes are formed transient overvoltage monitoring system network.For the transient overvoltage monitoring device of different electric pressures, its key property depends on the voltage divider working method of selecting for use.

Claims (4)

1. transient overvoltage on-line monitoring system; This monitoring system is connected with electrical network; It is characterized in that described monitoring system comprises partial pressure sensor, Isolation protector, transient voltage registering instrument and the industrial computer that connects successively, described partial pressure sensor is connected with electrical network.
2. a kind of transient overvoltage on-line monitoring system according to claim 1 is characterized in that, described partial pressure sensor is connected with Isolation protector through transmission cable.
3. a kind of transient overvoltage on-line monitoring system according to claim 1 is characterized in that described transient voltage registering instrument comprises A/D converter and storer, and described A/D converter is connected with storer, Isolation protector, industrial computer respectively.
4. a kind of transient overvoltage on-line monitoring system according to claim 3 is characterized in that, described A/D converter is connected with industrial computer through telecommunication cable.
CN 201220107456 2012-03-20 2012-03-20 Transient overvoltage on-line monitoring system Expired - Lifetime CN202614831U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220107456 CN202614831U (en) 2012-03-20 2012-03-20 Transient overvoltage on-line monitoring system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220107456 CN202614831U (en) 2012-03-20 2012-03-20 Transient overvoltage on-line monitoring system

Publications (1)

Publication Number Publication Date
CN202614831U true CN202614831U (en) 2012-12-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220107456 Expired - Lifetime CN202614831U (en) 2012-03-20 2012-03-20 Transient overvoltage on-line monitoring system

Country Status (1)

Country Link
CN (1) CN202614831U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103344821A (en) * 2013-06-25 2013-10-09 国家电网公司 Transient overvoltage on-line monitoring system based on CVT and provided with built-in low-voltage capacitor
CN104101773A (en) * 2014-07-28 2014-10-15 四川通源电力科技有限公司 Electrical power system transient overvoltage acquisition system
CN104820148A (en) * 2015-05-05 2015-08-05 云南电网有限责任公司电力科学研究院 Over-voltage measurement and simulation test platform of power transmission line
CN106291074A (en) * 2016-07-28 2017-01-04 孙文兵 A kind of 35kV transformer station on-line overvoltage monitor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103344821A (en) * 2013-06-25 2013-10-09 国家电网公司 Transient overvoltage on-line monitoring system based on CVT and provided with built-in low-voltage capacitor
CN104101773A (en) * 2014-07-28 2014-10-15 四川通源电力科技有限公司 Electrical power system transient overvoltage acquisition system
CN104101773B (en) * 2014-07-28 2017-01-18 四川通源电力科技有限公司 Electrical power system transient overvoltage acquisition system
CN104820148A (en) * 2015-05-05 2015-08-05 云南电网有限责任公司电力科学研究院 Over-voltage measurement and simulation test platform of power transmission line
CN106291074A (en) * 2016-07-28 2017-01-04 孙文兵 A kind of 35kV transformer station on-line overvoltage monitor

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C14 Grant of patent or utility model
CX01 Expiry of patent term

Granted publication date: 20121219

CX01 Expiry of patent term