CN102487248B - Transmission line induced electricity eliminating device - Google Patents

Transmission line induced electricity eliminating device Download PDF

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Publication number
CN102487248B
CN102487248B CN201110056718.9A CN201110056718A CN102487248B CN 102487248 B CN102487248 B CN 102487248B CN 201110056718 A CN201110056718 A CN 201110056718A CN 102487248 B CN102487248 B CN 102487248B
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transmission line
transformer
induced electricity
electric capacity
voltage
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CN102487248A (en
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吴永恒
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Zhejiang Deou Electric Technology Co., Ltd
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吴永恒
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Abstract

The invention relates to a transmission line induced electricity eliminating device, comprising a case and an integrated module. The transmission line induced electricity eliminating device is characterized in that the integrated module comprises a terminal, a detection circuit and a feedback circuit, wherein the terminal is connected with the detection circuit, the detection circuit is connected with the feedback circuit in parallel, the detection circuit comprises a capacitor a, a voltage transformer and a phase tester, the capacitor a is connected with the voltage transformer in series, a secondary side of the voltage transformer is connected with the phase tester, the feedback circuit comprises a capacitor b, a booster transformer and a phase generator, the capacitor b is connected with the booster transformer in series, and the secondary side of the booster transformer is connected with the phase generator.

Description

Transmission line induced electricity cancellation element
Technical field
The present invention relates to transmission line induced electricity cancellation element, be mainly used in eliminating ultra-high-tension power transmission line induced electricity.
Background technology
Article two, and above ultra-high-tension power transmission line owing to joint using or adjacent lines close together, therein in the situation of the newly-built or interruption maintenance of transmission line and All other routes charging operation, this circuit newly-built or maintenance can produce induced electricity due to the principle of capacitance partial pressure, through on-the-spot test for many years, find that 220kV and following line influence electricity ceiling voltage can reach 7kV, make existing test apparatus because insulation not all cannot normally be worked.Reduced faradic method is that large value capacitor in parallel carries out dividing potential drop on the line in the past.Although using the method for shunt capacitor is the most simply to eliminate faradic mode, because the distance of ultra-high-tension power transmission line is very long, the capacitance of its equivalent capacity is at least more than 100nF.So the capacitance that makes induced electricity be controlled at capacitor that must be in parallel within tolerance interval is the more than 15 times of circuit equivalent capacity, certainly will cause needed capacitor very huge and expensive.And the capacitance increasing and the voltage of reduction are to be nonlinear.
Summary of the invention
Technical problem to be solved by this invention is to overcome existing above-mentioned deficiency in prior art, and provides a kind of reasonable in design, volume little, lightweight, can effectively eliminate the faradic device of ultra-high-tension power transmission line.
The technical scheme that the present invention solves the problems of the technologies described above employing is: transmission line induced electricity cancellation element comprises: shell, integration module, it is characterized in that described integration module comprises: terminals, detection line and feedback line, described terminals are connected with detection line, detection line is in parallel with feedback line, described detection line comprises: electric capacity a, voltage transformer, phase test instrument, electric capacity a and voltage mutual inductor serial, voltage transformer secondary side connects phase test instrument, described feedback line comprises: electric capacity b, step-up transformer, phase generator, described electric capacity b series voltage instrument transformer, voltage transformer secondary side connects phase generator.
Phase generator of the present invention, is characterized in that: on phase generator with voltmeter, phase meter, voltage regulating device, phase adjusting device.
Phase generator power supply of the present invention is that 220V exchanges.
Electric capacity a of the present invention is 220nF, and electric capacity is that b is 2uF.
Voltage transformer of the present invention is 10/0.1kV.
Step-up transformer of the present invention is 1/0.2kV.
By above technical scheme, adopted being used in combination of reverse voltage and series capacitor, reduced the production cost of induced electricity cancellation element, also make whole table apparatus volume-diminished, weight saving.Be more applicable for volume production.And can regulate according to different line lengths and voltage.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is structural representation of the present invention.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, and following examples are explanation of the invention and the present invention is not limited to following examples.
Embodiment:
As shown in Figure 1 to Figure 3, the technical scheme that the present invention solves the problems of the technologies described above employing is: transmission line induced electricity cancellation element comprises: shell 1, integration module, it is characterized in that described integration module comprises: terminals 2, detection line and feedback line, described terminals are connected with detection line, detection line is in parallel with feedback line, described detection line comprises: electric capacity a3, voltage transformer 31, phase test instrument 32, electric capacity a3 and voltage transformer 31 series connection, 31 2 side joint phase test instrument 32 of voltage transformer, described feedback line comprises: electric capacity b4, step-up transformer 41, phase generator 42, described electric capacity b4 series boosting transformer 41, step-up transformer 41 secondary sides connect phase generator 42.
Phase generator 42 of the present invention, is characterized in that: on phase generator 42 with voltmeter b424, phase meter b423, voltage regulating device 421, phase adjusting device 422.
Phase generator 42 power supplys of the present invention are that 220V exchanges.
Electric capacity a3 of the present invention and electric capacity are that b4 is 220nF.
Voltage transformer 31 of the present invention is 10/0.1kV.
Step-up transformer 41 of the present invention is 10/0.2kV.
During use, the terminals of transmission line induced electricity cancellation element 2 are connected to the transmission line induced voltage process electric capacity a3 of newly-built or interruption maintenance to the first step and then the primary winding of voltage transformer 31 enters ground.The phase test instrument 32 that the secondary coil of voltage transformer 31 connects, phase test instrument 32 carries out the detection of phase difference with another road from the signal of 220V power supply input, and difference is presented at the phase meter 322 of shell 1; Voltage signal detects and passes through the conversion of PT no-load voltage ratio through digital voltmeter and the correct numerical value of induced voltage shown to the voltmeter 321 of shell 1 to secondary voltage.Second step is by alternating current 220V supply voltage process phase generator 42, according to the demonstration of phase meter b423, by phase adjusting device 422, carry out the phase place of control phase generator 42 output voltages, output phase and induced electricity phase place are remained and differ 180 °, export a sine wave signal adjustable with the voltage magnitude of 180 ° of induced voltage phase differences, this signal is input to the secondary side of step-up transformer 41, through boosting of step-up transformer 41, simultaneously by the amplitude of voltage regulating device 421 regulation output voltages, by regulation output voltage, observe voltmeter b424 simultaneously, until the numerical value showing is adjusted to acceptable scope.Then by anti-phase high voltage, send transmission line back to and induced electricity is cancelled out each other, to reach the effect of controlling induced voltage.
Although the present invention with embodiment openly as above; but it is not in order to limit protection scope of the present invention; any technical staff who is familiar with this technology, not departing from change and the retouching of doing in the spirit and scope of the present invention, all should belong to protection scope of the present invention.

Claims (5)

1. a transmission line induced electricity cancellation element, it comprises: shell, integration module, is characterized in that: described integration module comprises: terminals, detection line and feedback line, described terminals are connected with detection line, and detection line is in parallel with feedback line; Described detection line comprises: electric capacity a, voltage transformer, phase test instrument, and electric capacity a and voltage mutual inductor serial, voltage transformer secondary side connects phase test instrument; Described feedback line comprises: electric capacity b, step-up transformer, phase generator, and described electric capacity b series boosting transformer, step-up transformer secondary side connects phase generator.
2. transmission line induced electricity cancellation element according to claim 1, is characterized in that: described electric capacity a capacitance is 220nF, and electric capacity b capacitance is 2uF.
3. transmission line induced electricity cancellation element according to claim 1, is characterized in that: described voltage transformer is 10/0.1kV.
4. transmission line induced electricity cancellation element according to claim 1, is characterized in that: described step-up transformer is 1/0.2kV.
5. transmission line induced electricity cancellation element according to claim 1, is characterized in that: described phase generator power supply is alternating current 220V.
CN201110056718.9A 2011-03-05 2011-03-05 Transmission line induced electricity eliminating device Active CN102487248B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201110056718.9A CN102487248B (en) 2011-03-05 2011-03-05 Transmission line induced electricity eliminating device

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CN102487248B true CN102487248B (en) 2014-04-09

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105277913B (en) * 2015-09-30 2018-06-26 华中科技大学 A kind of test method of capacitance type potential transformer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10254268A1 (en) * 2002-11-21 2004-06-09 Abb Patent Gmbh Operating method for inductive flow measuring device with suppression or elimination of interference components of AC voltage supplied to magnetic system
CN1707275A (en) * 2005-05-10 2005-12-14 武汉中元华电科技有限公司 Method for removing interference inductive voltage in transmission line power frequency parameter test
CN201360144Y (en) * 2009-01-06 2009-12-09 西安雷迪维护系统设备有限公司 Induced voltage suppressor
CN202050236U (en) * 2011-03-05 2011-11-23 吴永恒 Device for eliminating induction electricity of power transmission line

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07307229A (en) * 1994-05-12 1995-11-21 Mitsubishi Electric Corp Erasing circuit and electromagnetic power application machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10254268A1 (en) * 2002-11-21 2004-06-09 Abb Patent Gmbh Operating method for inductive flow measuring device with suppression or elimination of interference components of AC voltage supplied to magnetic system
CN1707275A (en) * 2005-05-10 2005-12-14 武汉中元华电科技有限公司 Method for removing interference inductive voltage in transmission line power frequency parameter test
CN201360144Y (en) * 2009-01-06 2009-12-09 西安雷迪维护系统设备有限公司 Induced voltage suppressor
CN202050236U (en) * 2011-03-05 2011-11-23 吴永恒 Device for eliminating induction electricity of power transmission line

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP特开平-307229A 1995.11.21

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Application publication date: 20120606

Assignee: Jiaxing Dealour Electric Technology Co., Ltd.

Assignor: Wu Yongheng

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Denomination of invention: Transmission line induced electricity eliminating device

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Patentee after: Pan Anyuan

Address before: Jiaxing City, Zhejiang province Xiuzhou District 314001 hidekiyo Road No. 77 Dragon City Shenghua building 4 Room 201 on the right bank of the United States Court

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Address after: Xiuzhou Industrial Park in Jiaxing city of Zhejiang Province Hong Yip Road 314001 228 Shanghai Jiaotong University (Jiaxing) science and Technology Park Building 6, 3 floor

Patentee after: Zhejiang Deou Electrical Technology Co., Ltd.

Address before: Xiuzhou Industrial Park of Xiuzhou District of Jiaxing city of Zhejiang Province Hong Yip Road 314001 No. 228 No. six building three layer

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Patentee before: Jiaxing Dealour Electric Technology Co., Ltd.

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