CN105629125A - Transformer DC magnetic bias detecting apparatus - Google Patents

Transformer DC magnetic bias detecting apparatus Download PDF

Info

Publication number
CN105629125A
CN105629125A CN201410595204.4A CN201410595204A CN105629125A CN 105629125 A CN105629125 A CN 105629125A CN 201410595204 A CN201410595204 A CN 201410595204A CN 105629125 A CN105629125 A CN 105629125A
Authority
CN
China
Prior art keywords
transformer
magnetic bias
real
bias detecting
neutral point
Prior art date
Application number
CN201410595204.4A
Other languages
Chinese (zh)
Inventor
任家印
贾瑞武
Original Assignee
国家电网公司
博爱县电业公司
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 国家电网公司, 博爱县电业公司 filed Critical 国家电网公司
Priority to CN201410595204.4A priority Critical patent/CN105629125A/en
Publication of CN105629125A publication Critical patent/CN105629125A/en

Links

Abstract

The invention relates to power field and specifically relates to a transformer DC magnetic bias detecting apparatus. The transformer DC magnetic bias detecting apparatus is composed of five parts including a transformer neutral point Hall current sensor and vibration sensor, a real-time acquisition device, a wireless communication device, a control chamber monitoring microcomputer, and a remote state monitoring center. The transformer DC magnetic bias detecting apparatus is a full-automatic high-precision real-time monitoring apparatus, may display the DC current amplitude and polarity of the neutral point of a main transformer and a frequency-domain amplitude change of acceleration in real time, may clearly display a relation between the DC current distribution rule of the neutral point of the main transformer in a transformer station and the frequency-domain amplitudes of acceleration, determines the degree of DC magnetic bias of the transformer instantly in order to protect the transformer.

Description

A kind of transformer DC magnetic bias detecting device
Technical field
The present invention relates to power domain, be specifically related to a kind of transformer DC magnetic bias detecting device.
Background technology
When high-tension d.c. plant monopolar ground return runs, being likely to produce impact for the ac equipment of areal, two transformer stations being in different DC potential constitute loop through transmission line of electricity, will have DC current stream to transformer neutral point and Transformer Winding. Transformator there will be DC magnetic bias phenomena, causes transformer noise to increase, and vibration aggravation etc., the harm to transformator is long-term, and there is presently no a set of effective quality inspection method. It is therefore desirable to set up the real-time monitoring device of a set of efficient pressure swing device D.C. magnetic biasing.
Summary of the invention
For solving above-mentioned technical problem, the present invention is by the following technical solutions: a kind of transformer DC magnetic bias detecting device, described a kind of transformer DC magnetic bias detecting device is made up of five parts, transformer neutral point Hall current sensor and vibrating sensor, Real-time Collection equipment, wireless telecommunications system, the monitoring microcomputer of control room, remote condition monitoring center; Described transformer neutral point Hall current sensor and vibrating sensor, Real-time Collection equipment, wireless telecommunications system, control room monitoring microcomputer connected by electric wire; The monitoring microcomputer of described control room is connected with remote monitoring center by optical networking.
Described Real-time Collection equipment uses current acquisition card NI-9239.
Described wireless telecommunications system adopts Mesh wireless network Tongxu method.
The monitoring microcomputer of described control room adopts technical grade 32 bit processor.
Compared with prior art; the invention has the beneficial effects as follows: this monitoring device be a whole set of automatically, in high precision, real-time monitoring device; neutral point of main transformer DC current amplitude and polarity can be shown in real time; and the frequency domain amplitude change of acceleration; can clearly display each transforming plant main transformer neutral point direct current the regularity of distribution and with the corresponding relation of acceleration frequency domain amplitude; the instant degree judging transformer DC magnetic bias, protects transformator.
Accompanying drawing explanation
Fig. 1 is one transformer DC magnetic bias structure of the detecting device schematic diagram of the present invention.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated. Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
One embodiment of a kind of transformer DC magnetic bias detecting device of the present invention: a kind of transformer DC magnetic bias detecting device, described a kind of transformer DC magnetic bias detecting device is made up of five parts, i.e. transformer neutral point Hall current sensor and vibrating sensor, Real-time Collection equipment, wireless telecommunications system, the monitoring microcomputer of control room, remote condition monitoring center; Described transformer neutral point Hall current sensor and vibrating sensor, Real-time Collection equipment, wireless telecommunications system, control room monitoring microcomputer connected by electric wire; The monitoring microcomputer of described control room is connected with remote monitoring center by optical networking.
Described Real-time Collection equipment uses current acquisition card NI-9239.
Described wireless telecommunications system adopts Mesh wireless network Tongxu method.
The monitoring microcomputer of described control room adopts technical grade 32 bit processor.

Claims (4)

1. a transformer DC magnetic bias detecting device, it is characterized in that: described a kind of transformer DC magnetic bias detecting device is made up of five parts, transformer neutral point Hall current sensor and vibrating sensor, Real-time Collection equipment, wireless telecommunications system, the monitoring microcomputer of control room, remote condition monitoring center; Described transformer neutral point Hall current sensor and vibrating sensor, Real-time Collection equipment, wireless telecommunications system, control room monitoring microcomputer connected by electric wire; The monitoring microcomputer of described control room is connected with remote monitoring center by optical networking.
2. a kind of transformer DC magnetic bias detecting device according to claim 1, it is characterised in that: described Real-time Collection equipment uses current acquisition card NI-9239.
3. a kind of transformer DC magnetic bias detecting device according to claim 1, it is characterised in that: described wireless telecommunications system adopts Mesh wireless network Tongxu method.
4. a kind of transformer DC magnetic bias detecting device according to claim 1, it is characterised in that: the monitoring microcomputer of described control room adopts technical grade 32 bit processor.
CN201410595204.4A 2014-10-30 2014-10-30 Transformer DC magnetic bias detecting apparatus CN105629125A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410595204.4A CN105629125A (en) 2014-10-30 2014-10-30 Transformer DC magnetic bias detecting apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410595204.4A CN105629125A (en) 2014-10-30 2014-10-30 Transformer DC magnetic bias detecting apparatus

Publications (1)

Publication Number Publication Date
CN105629125A true CN105629125A (en) 2016-06-01

Family

ID=56044246

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410595204.4A CN105629125A (en) 2014-10-30 2014-10-30 Transformer DC magnetic bias detecting apparatus

Country Status (1)

Country Link
CN (1) CN105629125A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106771512A (en) * 2016-11-15 2017-05-31 广东电网有限责任公司电力科学研究院 A kind of direct current current-limiting device installs determination methods and device
CN107561377A (en) * 2016-06-30 2018-01-09 广州西门子变压器有限公司 The detection method of D.C. magnetic biasing in transformer
CN109116169A (en) * 2018-08-03 2019-01-01 西南交通大学 The detection and analysis device and its determination method of power transformer D.C. magnetic biasing

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003207537A (en) * 2002-01-09 2003-07-25 Hitachi Cable Ltd Direct-current biasing hot-line diagnostic system for power cable and direct-current biasing hot-line diagnostic method for power cable
CN102520240A (en) * 2012-01-05 2012-06-27 山东电力研究院 Magnetic bias current monitoring and early-warning system for large-scale transformer
CN103197178A (en) * 2013-03-21 2013-07-10 辽宁省电力有限公司电力科学研究院 Device and method of on-line monitoring of transformer direct current magnetic bias
CN203133203U (en) * 2013-03-21 2013-08-14 国家电网公司 DC magnetic bias monitoring system based on multiple acquisition cards
CN203133204U (en) * 2013-03-21 2013-08-14 国家电网公司 Transformer DC magnetic biasing monitoring system
CN103713217A (en) * 2013-12-25 2014-04-09 国家电网公司 Method for monitoring operating state of power transformer on line under direct-current magnetic bias condition

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003207537A (en) * 2002-01-09 2003-07-25 Hitachi Cable Ltd Direct-current biasing hot-line diagnostic system for power cable and direct-current biasing hot-line diagnostic method for power cable
CN102520240A (en) * 2012-01-05 2012-06-27 山东电力研究院 Magnetic bias current monitoring and early-warning system for large-scale transformer
CN103197178A (en) * 2013-03-21 2013-07-10 辽宁省电力有限公司电力科学研究院 Device and method of on-line monitoring of transformer direct current magnetic bias
CN203133203U (en) * 2013-03-21 2013-08-14 国家电网公司 DC magnetic bias monitoring system based on multiple acquisition cards
CN203133204U (en) * 2013-03-21 2013-08-14 国家电网公司 Transformer DC magnetic biasing monitoring system
CN103713217A (en) * 2013-12-25 2014-04-09 国家电网公司 Method for monitoring operating state of power transformer on line under direct-current magnetic bias condition

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107561377A (en) * 2016-06-30 2018-01-09 广州西门子变压器有限公司 The detection method of D.C. magnetic biasing in transformer
CN106771512A (en) * 2016-11-15 2017-05-31 广东电网有限责任公司电力科学研究院 A kind of direct current current-limiting device installs determination methods and device
CN106771512B (en) * 2016-11-15 2019-08-09 广东电网有限责任公司电力科学研究院 A kind of direct current current-limiting device installation judgment method and device
CN109116169A (en) * 2018-08-03 2019-01-01 西南交通大学 The detection and analysis device and its determination method of power transformer D.C. magnetic biasing

Similar Documents

Publication Publication Date Title
MX364593B (en) Method and apparatus for configuring a communication interface.
MX365148B (en) Passive electrical coupling for surface waves on power line and methods for use therewith.
PH12014502471A1 (en) Methods and arrangements for csi reporting
SG10201901277UA (en) Grid frequency response
GB2539856A (en) High bit-rate magnetic communication
MX342724B (en) Communication apparatus, communication control method and program.
GB2519027A (en) Universal protocol for power tools
MX2016000749A (en) Point-to-point wireless system, communication apparatus and communication control method.
WO2014093526A3 (en) System and method for improved communication on a wireless network
PE20171499A1 (en) SYSTEM, METHOD AND APPARATUS FOR THE LOCATION OF A NETWORK
SG184929A1 (en) Method and apparatus for managing interference in a communication device
CN103713217B (en) The on-line monitoring method of Operation Condition of Power Transformers under a kind of Direct Current Bias
WO2012016110A3 (en) Systems, methods, apparatus, and computer-readable media for coding of harmonic signals
RU2012119001A (en) REQUEST FOR ESTABLISHMENT OF COMMUNICATION BY CLOSERING COMMUNICATIONS
MX2013005000A (en) Wireless device detection and communication apparatus and system.
MX338606B (en) Wireless power transmission system and wireless power transmission method.
MX357831B (en) Non-technical losses in a power distribution grid.
BR112014015407A8 (en) power line communication receiver
MX2016004549A (en) Fuel dispensing environment utilizing active sniffer to upgrade legacy equipment.
MX2015016809A (en) A system and method for inferring schematic relationships between load points and service transformers.
JP2013236287A5 (en) Terminal apparatus, base station apparatus, and communication method
MX2015010632A (en) Data processing with magnetic resonance tool.
WO2014209742A3 (en) System and method of rotor time constant online identification in an ac induction machine
MX2018014697A (en) Method and apparatus for performing signal conditioning to mitigate interference detected in a communication system.
MX2017006550A (en) Method and device for acquiring access authority.

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20160601