CN106405269B - Method for detecting low-temperature performance of dry-type air-core reactor - Google Patents
Method for detecting low-temperature performance of dry-type air-core reactor Download PDFInfo
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- CN106405269B CN106405269B CN201610702593.5A CN201610702593A CN106405269B CN 106405269 B CN106405269 B CN 106405269B CN 201610702593 A CN201610702593 A CN 201610702593A CN 106405269 B CN106405269 B CN 106405269B
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- 238000000034 method Methods 0.000 title claims description 25
- 238000012360 testing method Methods 0.000 claims abstract description 104
- 238000004804 winding Methods 0.000 claims abstract description 50
- 238000001514 detection method Methods 0.000 claims abstract description 34
- 239000011810 insulating material Substances 0.000 claims abstract description 30
- 239000003990 capacitor Substances 0.000 claims abstract description 11
- 238000004891 communication Methods 0.000 claims abstract description 8
- 230000008859 change Effects 0.000 claims description 11
- 238000005538 encapsulation Methods 0.000 claims description 8
- 239000012774 insulation material Substances 0.000 claims description 3
- 238000011056 performance test Methods 0.000 abstract description 6
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010998 test method Methods 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- IZJSTXINDUKPRP-UHFFFAOYSA-N aluminum lead Chemical compound [Al].[Pb] IZJSTXINDUKPRP-UHFFFAOYSA-N 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000009662 stress testing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
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- 238000012423 maintenance Methods 0.000 description 1
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- 230000009466 transformation Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/04—Measuring force or stress, in general by measuring elastic deformation of gauges, e.g. of springs
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Abstract
The invention discloses a low-temperature performance detection method of a dry-type air-core reactor, wherein a dry-type air-core reactor sample comprises at least one winding package, and the winding package comprises the following steps: the stress-reducing wire comprises a wound wire, an insulating material wound outside the wire, and a stress sheet arranged between the wire and the insulating material. The detection method comprises the following steps: establishing a communication loop for detecting the low-temperature performance of a dry-type air-core reactor test article, comprising the following steps of: the high-voltage switch, the test transformer, the compensating capacitor and the dry type air reactor test article form a detection loop, and the connection or disconnection of the detection loop is controlled by the connection or disconnection of the high-voltage switch. The invention adopts the novel dry-type air-core reactor to carry out the low-temperature performance test, and can realize the low-temperature performance test of the dry-type air-core reactor under the conditions that the field environment temperature and the operation condition are similar.
Description
Technical Field
The invention relates to the field of detection, in particular to a method and a system for detecting low-temperature performance of a dry-type air-core reactor.
Background
The reactor is widely applied in the technical field of power transmission and transformation, wherein the dry-type air-core reactor is an important reactive compensation device in a power system, the dry-type air-core reactor produced in the prior art is rapidly developed due to the advantages of large design capacity, excellent short-circuit impact resistance, high insulation margin, simple field maintenance and the like, the current 10 kV-66 kV and 110kV voltage class systems for ultra-high voltage alternating current engineering are covered, and the maximum single capacity reaches 40 Mvar. The dry-type air reactor is in a parallel connection structure by adopting a plurality of insulated packages, and each package is formed by winding a single-wire insulated lapping lead or an insulated transposition strand around an air coil and then winding an insulating material outside the air coil and then curing the wound insulating material. The running statistical results of the dry-type electric reactor for many years show that the dry-type electric reactor has high failure occurrence rate in winter in northeast regions, and serious accidents such as fire and the like frequently occur. However, the fault reactors are all products qualified in factory tests, which shows that the existing dry-type air-core reactor test method has defects in performance assessment of low-temperature operation. The conventional dry-type air reactor test is carried out at normal temperature, mainly takes the electrical performance examination as the main part, but the previous research shows that the electrical performance of the dry-type reactor insulating material at low temperature has no obvious change compared with the normal temperature state, and it is difficult to find out the real reason of high failure rate of the dry-type air reactor at low temperature only by the conventional test, so that the research needs to be carried out by providing a test method of mechanical performance under the low temperature condition aiming at the characteristics of the dry-type reactor on the basis of the existing test method, and the test method has important significance for ensuring the product quality and improving the operation reliability of the dry-type reactor under the low temperature environment. The prior art does not research on the detection of the low-temperature performance of the dry-type air-core reactor.
Disclosure of Invention
In order to solve the above problems, the present invention provides a method, a low temperature performance detection method of a dry type air-core reactor, the dry type air-core reactor test article comprising at least one winding encapsulation, the winding encapsulation comprising: a wound wire, an insulating material wound outside the wire, and a stress patch disposed between the wire and the insulating material, wherein the stress patch is for measuring stress variations within the envelope, the method comprising:
establishing a communication loop for detecting the low-temperature performance of a dry-type air-core reactor sample, wherein the communication loop comprises: the device comprises a voltage regulator, a test transformer, a high-voltage switch, a compensating capacitor, a dry type air reactor test article and a low-temperature test box, wherein the voltage regulator is connected with the test transformer, the high-voltage switch, the test transformer, the compensating capacitor and the dry type air reactor test article form a detection loop, and the on or off of the detection loop is controlled by the on or off of the high-voltage switch;
closing the high-voltage switch, and increasing the voltage by adjusting a voltage regulator to enable the current of the dry type air-core reactor sample to reach a current value required for low-temperature performance detection;
disconnecting the high-voltage switch, starting and adjusting the temperature of the low-temperature test box to a temperature value required by low-temperature performance detection, and keeping the temperature of the dry type air-core reactor sample constant;
closing the high-voltage switch, and measuring the change of a winding encapsulation internal stress sheet of the dry-type air-core reactor test article; and
and disconnecting the high-voltage switch, reducing the voltage of the voltage regulator to zero, and closing the low-temperature test chamber.
Preferably, the dry-type air-core reactor test product is the same as a dry-type air-core reactor finished product wire and an insulating material.
Preferably wherein the stress tab is evenly disposed between the conductor and the insulating material.
Preferably, the current of the dry-type air-core reactor test product is consistent with the current of the dry-type air-core reactor finished product.
In accordance with still another embodiment of the present invention, there is provided a low-temperature performance detection system for a dry-type air-core reactor, the system including: the low-temperature performance detection system of the dry-type air-core reactor test article and the dry-type air-core reactor test article is communicated with a loop;
the dry-type air-core reactor test article comprises: at least one winding enclosure, the winding enclosure comprising: a wound wire, an insulating material wound outside the wire, and a stress patch disposed between the wire and the insulating material, wherein the stress patch is for measuring stress variations within the envelope;
dry-type air-core reactor sample low temperature performance detecting system communicates the return circuit and includes: the device comprises a voltage regulator, a test transformer, a high-voltage switch, a compensating capacitor, a dry type air reactor test article and a low-temperature test box, wherein the voltage regulator is connected with the test transformer, the high-voltage switch, the test transformer, the compensating capacitor and the dry type air reactor test article form a detection loop, and the on or off of the detection loop is controlled by the on or off of the high-voltage switch;
the dry-type air-core reactor sample low-temperature performance detection system is used for:
closing the high-voltage switch, and increasing the voltage by adjusting a voltage regulator to enable the current of the dry type air-core reactor sample to reach a current value required for low-temperature performance detection;
disconnecting the high-voltage switch, starting and adjusting the temperature of the low-temperature test box to a temperature value required by low-temperature performance detection, and keeping the temperature of the dry type air-core reactor sample constant;
closing the high-voltage switch, and measuring the change of a winding encapsulation internal stress sheet of the dry-type air-core reactor test article; and
and disconnecting the high-voltage switch, reducing the voltage of the voltage regulator to zero, and closing the low-temperature test chamber.
Preferably, the dry-type air-core reactor test product is the same as a dry-type air-core reactor finished product wire and an insulating material.
Preferably wherein the stress tab is evenly disposed between the conductor and the insulating material.
Preferably, the current of the dry-type air-core reactor test product is consistent with the current of the dry-type air-core reactor finished product.
According to the technical scheme provided by the invention, the novel dry-type air-core reactor is adopted to carry out the low-temperature performance test, so that the low-temperature performance test of the dry-type air-core reactor can be carried out under the conditions that the field environment temperature and the operation condition are similar. The invention designs a dry-type air-core reactor test sample, which aims to solve the problems that the existing dry-type air-core reactor is large in size and cannot be used for low-temperature test of the whole machine. According to the technical scheme, the stress testing device is used for measuring the low-temperature mechanical characteristics of the dry-type air-core reactor test product, and the mechanical characteristics of the dry-type air-core reactor under the real low-temperature condition are obtained.
Drawings
A more complete understanding of exemplary embodiments of the present invention may be had by reference to the following drawings in which:
FIG. 1 is a flow chart of a method for detecting low-temperature performance of a dry-type air-core reactor according to an embodiment of the invention;
FIG. 2 is a diagram of a dry type air core reactor sample winding encapsulation structure according to an embodiment of the invention; and
fig. 3 is a structure of a system for detecting low-temperature performance of a dry-type air-core reactor according to an embodiment of the invention.
Detailed Description
The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, however, the present invention may be embodied in many different forms and is not limited to the embodiments described herein, which are provided for complete and complete disclosure of the present invention and to fully convey the scope of the present invention to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the accompanying drawings is not intended to be limiting of the invention. In the drawings, the same units/elements are denoted by the same reference numerals.
Unless otherwise defined, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Further, it will be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.
Fig. 1 is a flowchart 100 of a method for detecting low-temperature performance of a dry air-core reactor according to an embodiment of the invention. According to the embodiment of the invention, the invention designs a dry type air reactor test product, which aims to solve the problems that the existing dry type air reactor finished product is large in size and cannot be subjected to low-temperature test of the whole machine. The invention provides a low-temperature performance test method for a dry-type air-core reactor, which is characterized in that a stress test device is used for measuring the low-temperature mechanical characteristics of a dry-type air-core reactor test product, and the mechanical characteristics of the dry-type air-core reactor under a real low-temperature condition are obtained. Preferably, the method 100 includes obtaining a dry-type air-core reactor test article including at least one winding envelope, the winding envelope including: a wound wire, an insulating material wound around an exterior of the wire, and a stress patch disposed between the wire and the insulating material, wherein the stress patch is for measuring a change in stress within the envelope, the method comprising: establishing a communication loop for detecting the low-temperature performance of a dry-type air-core reactor test article, wherein the communication loop comprises: the high-voltage switch, the test transformer, the compensating capacitor and the dry type air reactor test article form a detection loop, and the connection or disconnection of the detection loop is controlled by the connection or disconnection of the high-voltage switch. When the low-temperature performance of the dry-type air-core reactor test article is detected, a stress sheet measuring line is connected into a stress measuring device, and the dry-type air-core reactor test article is placed in a low-temperature test box. And closing the high-voltage switch, and increasing the voltage by adjusting the voltage regulator to enable the current of the dry type air-core reactor sample to reach the current value required by low-temperature performance detection. And (4) disconnecting the high-voltage switch, starting and adjusting the temperature of the low-temperature test box to a temperature value required by low-temperature performance detection, and keeping the temperature of the dry-type air-core reactor test article constant. Closing the high-voltage switch, and measuring the change of a winding encapsulation internal stress sheet of a dry-type air-core reactor test article; and disconnecting the high-voltage switch, reducing the voltage of the voltage regulator back to zero, and closing the low-temperature test chamber.
Preferably, as shown in FIG. 1, the method 100 begins at step 101. The dry-type air-core reactor test sample provided by the invention is formed by connecting a plurality of winding envelopes in parallel, and the number of the winding envelopes is more than 1. When the dry-type air-core reactor test sample is designed, the number of finished product winding packages is referred, a part of the number of finished product winding packages is selected as the number of the dry-type air-core reactor test sample winding packages, and the current density of each winding package is equal to the current density of the finished product winding packages, so that the detection method is consistent with the operation condition. And arranging a lead wire in the winding envelope of the dry type air-core reactor test article, wherein the lead wire is a metal lead wire, such as an aluminum lead wire. The method comprises the steps of arranging an insulating material outside a lead, embedding a stress sheet between the lead and the external insulating material in the winding wrapping and winding process of the winding, measuring stress change in the wrapping, winding the insulating material outside according to a normal process, and curing to finish winding wrapping manufacture, wherein the insulating material can be epoxy glass fiber. The dry-type air-core reactor finished product is put into operation in a low-temperature environment, under the impact of through-flow electric power and the action of stable current heating, due to different expansion coefficients of the conducting wire and the insulating material, the aluminum conducting wire and the insulating material in the winding package can be displaced and loosened, the cracking of the winding package can be seriously influenced, external moisture is immersed, and faults are gradually developed.
The volumes of the dry type air-core reactor test product and the finished product adopt a design method of an equal proportion unit, and the dry type air-core reactor test product and the finished product are the same in lead and insulating material. In order to balance the load of each winding of the dry-type air-core reactor test product during operation, the current is a key parameter influencing the performance parameters of the dry-type air-core reactor test product, and in the embodiment of the invention, the current density on each winding package is basically consistent. The dry-type air-core reactor is used as a powerless compensation device and needs to be switched frequently according to the change of the reactive power of a system.
Preferably, the stress tabs are evenly disposed between the wire and the insulating material. The stress sheets are uniformly arranged on the outer surface of the lead along the axial direction and the radial direction of the dry-type air-core reactor test sample, and the measurement signal wire is led out through the end part.
Preferably, when the low-temperature performance of the dry-type air-core reactor test sample is detected, the high-voltage switch is closed, and the voltage is increased by adjusting the voltage regulator, so that the current of the dry-type air-core reactor test sample reaches a current value required for detecting the low-temperature performance. And then disconnecting the high-voltage switch, starting and adjusting the temperature of the low-temperature test box to a temperature value required by low-temperature performance detection, wherein the temperature value required by the detection is basically consistent with the temperature value of the on-site low-temperature environment. Keeping the temperature of the dry type air-core reactor sample constant. And closing the high-voltage switch again, measuring the change of the internal stress sheet of the winding package of the dry-type air-core reactor test article, finally, disconnecting the high-voltage switch, closing the low-temperature test box and ending the test. Through the implementation mode of the invention, the dry-type air reactor sample can be detected in a low-temperature environment, the mechanical performance parameters of the dry-type air reactor in the low-temperature environment are obtained, reference is provided for improving and optimizing the dry-type air reactor material and production engineering, the fault occurrence rate of the dry-type air reactor in the low-temperature environment is reduced, and the operation reliability of the dry-type air reactor is improved.
Fig. 2 is a structure diagram of a dry-type air-core reactor sample winding encapsulation according to an embodiment of the invention. Preferably, the dry-type air-core reactor test sample provided by the invention is formed by connecting a plurality of winding envelopes 200 in parallel, and the number of the winding envelopes 200 is more than 1. When the dry-type air-core reactor test product winding package 200 is designed, the number of finished product winding packages is referred, a part of the number of finished product winding packages is selected as the number of the dry-type air-core reactor test product winding packages, the current density of each winding package is equal to the current density of the finished product winding packages, and the detection method is consistent with the operation condition. A lead wire 201 is arranged in the winding package 200 of the dry type air core reactor test article, and the lead wire 201 is a metal lead wire, such as an aluminum lead wire. The wire is externally provided with an insulating material, and during the winding process of the winding envelope 200, the stress pieces 202 are embedded between the wire and the external insulating material, and are uniformly arranged between the wire and the insulating material. Stress sheet 202 is used to measure the stress variation in the enclosure, and insulation material 203 is wound on the outside and cured to complete the winding enclosure fabrication according to normal processes. The insulating material is epoxy glass fiber. The dry-type air-core reactor test product is the same as the dry-type air-core reactor finished product conductor and the insulation material. The dry-type air-core reactor test product and the dry-type air-core reactor finished product are designed in an equal ratio unit mode, and the ratio of the dry-type air-core reactor finished product to the dry-type air-core reactor test product in volume ratio ranges from 2 to 15.
Fig. 3 is a system configuration diagram 300 for detecting low-temperature performance of a dry type air-core reactor according to an embodiment of the invention. Establishing a system structure diagram 300 for detecting the low-temperature performance of a dry-type air-core reactor sample, wherein a communication loop comprises the following steps: the voltage regulator 301 is connected with the test transformer 302, the high-voltage switch 303, the compensating capacitor 304, the dry type air-core reactor test article 305 and the low-temperature test box 306 form a detection loop, and the high-voltage switch 303, the test transformer 302, the compensating capacitor 304 and the dry type air-core reactor test article 305 control the connection or the disconnection of the detection loop through the connection or the disconnection of the high-voltage switch 303. When the low-temperature performance of the dry-type air-core reactor test article 305 is detected, a stress sheet measuring line is connected into a stress measuring device, and the dry-type air-core reactor test article 305 is placed in a low-temperature test box 306. The test power is provided by the test transformer 302, and because the capacity of the dry-type air-core reactor sample 305 is larger, the required power capacity is reduced by using the method of compensating the parallel connection of the compensation capacitor 304 in the embodiment of the invention. First, the high-voltage switch 303 is closed, and the voltage is increased by adjusting the voltage regulator 301, so that the current of the dry type air-core reactor sample 305 reaches a current value required for detecting low-temperature performance. The high-voltage switch 303 is turned off, the temperature 306 of the low-temperature test chamber is started and adjusted to a temperature value required for low-temperature performance detection, and the temperature of the dry type air-core reactor test article 305 can be kept constant. The temperature value required by detection is consistent with the temperature value of the low-temperature environment in which the dry-type air-core reactor finished product actually operates. The high voltage switch 303 is closed and the change in the internal stress sheet of the winding envelope of the dry air core reactor test article 305 is measured. And opening the high-voltage switch 303, reducing the voltage of the voltage regulator 301 back to zero and closing the low-temperature test chamber to finish the test.
According to the technical scheme provided by the invention, the low-temperature performance test of the dry-type air-core reactor can be realized under the conditions that the field environment temperature and the operation condition are similar by adopting the new dry-type air-core reactor test article. The invention designs a dry-type air-core reactor test sample, which aims to solve the problems that the existing dry-type air-core reactor finished product is large in size and cannot be subjected to low-temperature test of the whole machine. According to the technical scheme, the stress testing device is used for measuring the low-temperature mechanical characteristics of the dry-type air-core reactor test product, and the mechanical characteristics of the dry-type air-core reactor under the real low-temperature condition are obtained. The technical scheme provided by the invention is used for reducing the fault occurrence rate of the dry-type air-core reactor in a low-temperature environment, providing reference for improving and optimizing the material and production technology of the dry-type air-core reactor and improving the running reliability of the dry-type air-core reactor.
The invention has been described with reference to a few embodiments. However, other embodiments of the invention than the one disclosed above are equally possible within the scope of the invention, as would be apparent to a person skilled in the art from the appended patent claims.
Generally, all terms used in the claims are to be interpreted according to their ordinary meaning in the technical field, unless explicitly defined otherwise herein. All references to "a/an/the [ device, component, etc ]" are to be interpreted openly as referring to at least one instance of said device, component, etc., unless explicitly stated otherwise. The steps of any method disclosed herein do not have to be performed in the exact order disclosed, unless explicitly stated.
Claims (4)
1. A method for detecting the low-temperature performance of a dry-type air-core reactor,
the dry-type air-core reactor test article comprises at least one winding envelope, the winding envelope comprising: the method comprises the following steps of winding a lead, an insulating material wound outside the lead, and a stress sheet arranged between the lead and the insulating material, connecting a measuring line of the stress sheet into an application measuring device, and placing a dry type air reactor sample into a low-temperature test chamber, wherein the stress sheet is used for measuring stress change in an envelope, and the method comprises the following steps:
establishing a communication loop for detecting the low-temperature performance of a dry-type air-core reactor sample, wherein the communication loop comprises: the device comprises a voltage regulator, a test transformer, a high-voltage switch, a compensating capacitor, a dry type air reactor test article and a low-temperature test box, wherein the voltage regulator is connected with the test transformer, the high-voltage switch, the test transformer, the compensating capacitor and the dry type air reactor test article form a detection loop, and the on or off of the detection loop is controlled by the on or off of the high-voltage switch;
closing the high-voltage switch, and increasing the voltage by adjusting a voltage regulator to enable the current of the dry type air-core reactor sample to reach a current value required for low-temperature performance detection;
disconnecting the high-voltage switch, starting and adjusting the temperature of the low-temperature test box to a temperature value required by low-temperature performance detection, and keeping the temperature of the dry type air-core reactor sample constant;
closing the high-voltage switch, and measuring the change of a winding encapsulation internal stress sheet of the dry-type air-core reactor test article; and
and disconnecting the high-voltage switch, reducing the voltage of the voltage regulator to zero, and closing the low-temperature test chamber.
2. The method according to claim 1, wherein the dry air reactor test article is the same as a dry air reactor finished wire and insulation material.
3. The method of claim 1, wherein the stress tab is uniformly disposed between the wire and the insulating material.
4. The method according to claim 1, wherein the current of the dry air reactor test article is in accordance with a dry air reactor finished product current.
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| CN108931715A (en) * | 2018-07-17 | 2018-12-04 | 哈尔滨理工大学 | A kind of test method that reactor turn-to-turn insulation is influenced by temperature changing stress and device |
| CN109342892A (en) * | 2018-08-24 | 2019-02-15 | 天津经纬正能电气设备有限公司 | The test method of dry-type air-core reactor air duct slats insulation performance |
| CN110068752A (en) * | 2019-04-29 | 2019-07-30 | 国网吉林省电力有限公司电力科学研究院 | Dry type hollow shunt reactor low temperature is through-flow simulated testing system and its test method |
| CN111289824B (en) * | 2020-03-05 | 2021-12-14 | 国网吉林省电力有限公司电力科学研究院 | Strain temperature characteristic detection method for dry-type air-core reactor |
| CN111929516B (en) * | 2020-06-30 | 2024-04-26 | 国网黑龙江省电力有限公司电力科学研究院 | Reactor low temperature resistance detection system and method based on optical fiber sensor |
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| CN103354147A (en) * | 2013-06-03 | 2013-10-16 | 北京电力设备总厂 | Dry type air-core reactor with magnetic shielding function |
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| US5604134A (en) * | 1996-02-02 | 1997-02-18 | Taiwan Semiconductor Manufacturing Company, Ltd. | Particle monitoring method for plasma reactors with moving gas distribution housings |
| CN101557095A (en) * | 2008-04-11 | 2009-10-14 | 庞挺 | Temperature protective dry-type air core reactor and temperature measuring method thereof |
| CN101949984B (en) * | 2010-08-16 | 2014-03-12 | 中国电力科学研究院 | Type test method of saturable reactor for converter valve |
| CN202110913U (en) * | 2011-06-23 | 2012-01-11 | 杭州银湖电气设备有限公司 | Star frame structure dry type air core reactor |
| CN202720988U (en) * | 2012-06-27 | 2013-02-06 | 江苏省电力公司南京供电公司 | Dry hollow reactor of insulation structure |
| CN104021915A (en) * | 2014-06-25 | 2014-09-03 | 江苏天利机电有限公司 | High-frequency electric reactor |
| CN104698353A (en) * | 2015-03-11 | 2015-06-10 | 广西电网有限责任公司电力科学研究院 | Temperature monitoring based insulating defect detection system of dry type electric reactor |
| CN205353296U (en) * | 2016-02-23 | 2016-06-29 | 哈尔滨理工大学 | A testing system for studying air -core type reactor agine mechaism |
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