CN101813720B - Electronic combined mutual inductor - Google Patents

Electronic combined mutual inductor Download PDF

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Publication number
CN101813720B
CN101813720B CN2010101607653A CN201010160765A CN101813720B CN 101813720 B CN101813720 B CN 101813720B CN 2010101607653 A CN2010101607653 A CN 2010101607653A CN 201010160765 A CN201010160765 A CN 201010160765A CN 101813720 B CN101813720 B CN 101813720B
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CN
China
Prior art keywords
voltage
out terminal
mutual inductor
combined mutual
leading
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Application number
CN2010101607653A
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CN101813720A (en
Inventor
陆汉兵
黄麟
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Jingjiang Jiangsu mutual inductor Limited by Share Ltd
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熊江咏
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Priority to CN2010101607653A priority Critical patent/CN101813720B/en
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Application granted granted Critical
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Abstract

The invention relates to an electronic combined mutual inductor, consisting of a primary high-voltage fuse, a primary high-voltage leading-out terminal, a secondary low-voltage leading-out terminal, a primary conductive body, a capacitance potential dividing ring, a secondary coil and epoxy resin. The primary high-voltage fuse is arranged at the upper part the electronic combined mutual inductor, the primary high-voltage leading-out terminal is arranged at the left side of the electronic combined mutual inductor, the secondary low-voltage leading-out terminal is arranged below the primary high-voltage leading-out terminal, and the epoxy resin is filled among the primary high-voltage fuse, the primary high-voltage leading-out terminal, the secondary low-voltage leading-out terminal, a primary conductive body and the capacitance potential dividing ring, therefore, serious failure hidden danger in the operation of a power system can be fundamentally eliminated, and the safety of the personnel and equipment can be furthest ensured. The invention has high security, low cost and fast response, and has practical significance for the transform and improvement of traditional medium and low voltage electronic equipment.

Description

A kind of electronic combined mutual inductor
Technical field: the present invention relates to a kind of Multifunction electronic combined mutual inductor; can finish electric current, voltage signal conversion and on-line monitoring simultaneously; refer more particularly in the digital intelligent comprehensive automation system of transformer substation and use; its output is the small voltage signal; performance is overstable; can be directly and instrument, protective relaying device interface, thus realize a kind of electronic combined mutual inductor of metering, control, measurement, defencive function.
Background technology: along with the develop rapidly of electronic technology; microcomputer type relay protection and electronic electricity meter have progressively occupied leading position; in relaying protection and measuring, the energy stream and the separate from information flow of control section, thereby monitoring equipment no longer needs the instrument transformer of high power output.Simultaneously because the application of fast development, the integrated automation of transformation stations and the power distribution automation of power industry, therefore, it is extremely urgent to develop a kind of low energy consumption new transformer with measurement, protection and ability to communicate.Ad hoc meter the present invention.
Summary of the invention: purpose of the present invention just provide a kind of brand-new, compact conformation, can be at the direct matching used multi-function electronic combination transformer of digital intelligent comprehensive automation system of transformer substation.The object of the present invention is achieved like this: a kind of electronic combined mutual inductor, formed by a high-tension fuse, high-voltage terminal end, secondary low-voltage leading-out terminal, primary conductive body, capacitance partial pressure ring, secondary coil, an epoxy resin, it is characterized in that: a high-tension fuse is arranged on the top of electronic combined mutual inductor, a high-voltage terminal end is arranged on the left side of electronic combined mutual inductor, and the secondary low-voltage leading-out terminal is arranged on the below of a high-voltage terminal end; The primary conductive body is arranged on the right side of electronic combined mutual inductor, described secondary coil is wound on the capacitance partial pressure ring, all adopts the epoxy resin filling between high-tension fuse, high-voltage terminal end, secondary low-voltage leading-out terminal, primary conductive body, capacitance partial pressure ring.
Installation dimension of the present invention is consistent with electromagnetic transformer with original mid-cabinet, installs and uses simple and conveniently, and operation need not safeguarded.In light weight, precision is high, good linearity, measuring range are wide, shortcoming such as the frequency band that has overcome traditional electromagnetic transformer is narrow, low-response.Can not produce high voltage during transformer current part second open circuit, the instrument transformer voltage segment does not have resonance phenomena, has fundamentally eliminated the significant trouble hidden danger in the power system operation, has farthest ensured the safety of personnel and equipment.Safe, the not danger such as inflammable, explosive that produces because of trapped fuel.Cost is low, instant effect, in existing, the transformation and the raising of low voltage electrical equipment have realistic meaning.All signals transmit by the multiple twin shielding conductor, help strengthening the ability of anti-electromagnetic interference.Cost is low, and instant effect has realistic meaning to the transformation of existing transformer station electric equipment and the construction of raising and digital intelligent transformer station.All signals transmit by the multiple twin shielding conductor, help strengthening the ability of anti-electromagnetic interference.
Description of drawings:
Fig. 1 is a structural representation of the present invention
1, high-tension fuse 2, high-voltage terminal end 3, secondary low-voltage leading-out terminal 4, primary conductive body 5, capacitance partial pressure ring 6, secondary coil 7, epoxy resin
Embodiment: the invention will be further described below in conjunction with accompanying drawing
A kind of electronic combined mutual inductor, formed by a high-tension fuse, high-voltage terminal end, secondary low-voltage leading-out terminal, primary conductive body, capacitance partial pressure ring, secondary coil, an epoxy resin, it is characterized in that: a high-tension fuse is arranged on the top of electronic combined mutual inductor, a high-voltage terminal end is arranged on the left side of electronic combined mutual inductor, and the secondary low-voltage leading-out terminal is arranged on the below of a high-voltage terminal end; The primary conductive body is arranged on the right side of electronic combined mutual inductor, described secondary coil is wound on the capacitance partial pressure ring, all adopts the epoxy resin filling between high-tension fuse, high-voltage terminal end, secondary low-voltage leading-out terminal, primary conductive body, capacitance partial pressure ring.During concrete enforcement, the coil in a kind of electronic combined mutual inductor be with lead equably on the non-ferromagnetic annular skeleton, one time bus places coil central authorities, so the current potential between winding coil and the bus is isolated.So owing to do not exist iron core not have saturated phenomenon.If bus current is I (t),
According to Faraday's electromagnetic induction law, the induced potential e (t) that Rogowski (Rogowski) coil two ends produce:
E (t)=-Mdi/dt M---coefficient of mutual inductance wherein
The induced potential e (t) that Rogowski coil two ends produce obtains and the proportional voltage signal of bus current after handling through integrator, pass through the processing, conversion of other link then after, can obtain and the proportional analog quantity output of primary current.
Secondary is measured the level winding and is adopted the little ironcore choke principle of low energy consumption to be made, and second protection level winding adopts little ironcore choke principle of low energy consumption or Rogowski (Rogowski) coil principle to be made.The electronic mutual inductor voltage segment adopts the design principle of inductance dividing potential drop.
Adopt the electronic mutual inductor that above principle produces can be directly and instrument, protective relaying device interface, directly supporting with intermediate switchgear cabinet.Thereby realize the function of metering, control, measurement, protection and on-line monitoring.

Claims (1)

1. electronic combined mutual inductor comprises high-tension fuse, high-voltage terminal end, secondary low-voltage leading-out terminal, primary conductive body, capacitance partial pressure ring, secondary coil, epoxy resin; It is characterized in that: a high-tension fuse is arranged on the top of electronic combined mutual inductor, and a high-voltage terminal end is arranged on the left side of electronic combined mutual inductor, and the secondary low-voltage leading-out terminal is arranged on the below of a high-voltage terminal end; The primary conductive body is arranged on the right side of electronic combined mutual inductor, described secondary coil is wound on the capacitance partial pressure ring, all adopts the epoxy resin filling between high-tension fuse, high-voltage terminal end, secondary low-voltage leading-out terminal, primary conductive body, capacitance partial pressure ring.
CN2010101607653A 2010-04-19 2010-04-19 Electronic combined mutual inductor Active CN101813720B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010101607653A CN101813720B (en) 2010-04-19 2010-04-19 Electronic combined mutual inductor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010101607653A CN101813720B (en) 2010-04-19 2010-04-19 Electronic combined mutual inductor

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Publication Number Publication Date
CN101813720A CN101813720A (en) 2010-08-25
CN101813720B true CN101813720B (en) 2011-12-14

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105024371B (en) * 2015-07-22 2018-07-20 江苏靖江互感器厂有限公司 A kind of four-in-one intelligent sampling electric discharge device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4322944A1 (en) * 1992-07-10 1994-05-11 Licentia Gmbh Current transformer for HV gas-insulated switching installation - has inbuilt HF capacitor providing shunt path for travelling waves due to switching transients for instrument protection and accuracy
DE202007012065U1 (en) 2007-08-24 2007-10-25 Kries-Energietechnik Gmbh & Co.Kg Combined current and voltage sensor for high voltage systems (1-380 kV)
CN200979838Y (en) * 2006-11-17 2007-11-21 马兴凯 An out-door high voltage potential transformer
CN201298447Y (en) * 2008-11-21 2009-08-26 湖南省电力公司电瓷电器厂 Novel sulfur hexafluoride gas insulation electronic mutual inductor
CN201663050U (en) * 2010-04-19 2010-12-01 熊江咏 Electronic combined transformer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4322944A1 (en) * 1992-07-10 1994-05-11 Licentia Gmbh Current transformer for HV gas-insulated switching installation - has inbuilt HF capacitor providing shunt path for travelling waves due to switching transients for instrument protection and accuracy
CN200979838Y (en) * 2006-11-17 2007-11-21 马兴凯 An out-door high voltage potential transformer
DE202007012065U1 (en) 2007-08-24 2007-10-25 Kries-Energietechnik Gmbh & Co.Kg Combined current and voltage sensor for high voltage systems (1-380 kV)
CN201298447Y (en) * 2008-11-21 2009-08-26 湖南省电力公司电瓷电器厂 Novel sulfur hexafluoride gas insulation electronic mutual inductor
CN201663050U (en) * 2010-04-19 2010-12-01 熊江咏 Electronic combined transformer

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
华超.浅谈电子式电流电压互感器原理及试验方法.《第四届安徽科技论坛安徽省电机工程学会分论坛论文集》.2006, *
钱政等.电子式光电组合电流/电压互感器中的相位补偿技术.《电力系统自动化》.2002,第26卷(第24期), *

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Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Jiangsu Jingjiang Instrument Transformer Factory Co., Ltd.

Assignor: Xiong Jiangyong

Contract record no.: 2012320000144

Denomination of invention: Electronic combined mutual inductor

Granted publication date: 20111214

License type: Exclusive License

Open date: 20100825

Record date: 20120229

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20160922

Address after: 214500 Zhenjiang City, Jingjiang Province, Taizhou, West to Ping Road, No. 23, No.

Patentee after: Jingjiang Jiangsu mutual inductor Limited by Share Ltd

Address before: 214516 No. 23, Ping Road, west of Jiangsu, Jingjiang, Zhenjiang

Patentee before: Xiong Jiangyong