CN108872706B - Insulation and direct resistance tester for driving mechanism of nuclear power station - Google Patents
Insulation and direct resistance tester for driving mechanism of nuclear power station Download PDFInfo
- Publication number
- CN108872706B CN108872706B CN201710320546.9A CN201710320546A CN108872706B CN 108872706 B CN108872706 B CN 108872706B CN 201710320546 A CN201710320546 A CN 201710320546A CN 108872706 B CN108872706 B CN 108872706B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/025—Measuring very high resistances, e.g. isolation resistances, i.e. megohm-meters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
-
- 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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
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- General Physics & Mathematics (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The invention discloses a nuclear power station driving mechanism insulation and direct resistance tester, which comprises: the device comprises an insulation resistance tester, a direct resistance tester and a switching control device; the insulation resistance tester is connected with the nuclear power station driving mechanism and is used for detecting the insulation resistance of the nuclear power station driving mechanism; the direct resistance tester is connected with the nuclear power station driving mechanism and is used for testing the direct current resistance of the nuclear power station driving mechanism; the switching control module is respectively connected with the insulation resistance tester and the direct resistance tester and controls the insulation resistance tester and the direct resistance tester to work in turn. The invention can quickly and efficiently measure the insulation coefficient and the direct resistance parameter of hundreds of driving mechanisms in the reactor of the nuclear power station. Manpower and time cost are greatly reduced, and the safety of workers is improved.
Description
Technical Field
The invention relates to the technical field of nuclear power station component testing, in particular to an insulation and direct resistance tester for a driving mechanism of a nuclear power station, which is used for measuring insulation coefficients and direct resistance parameters between coils of the driving mechanism of the nuclear power station.
Background
The nuclear power plant driving mechanism is a device for controlling the position of a nuclear fuel control rod, and the startup, power regulation, residual reactivity compensation, shutdown and emergency shutdown of a power plant are realized by changing the position of the control rod. The driving mechanism of the nuclear power station generally comprises five parts, namely a pressure-resistant shell, an electromagnetic assembly, a moving assembly, a driving rod and a position indicator. The electromagnetic assembly and the position indicator are composed of a plurality of groups of coils and are main components for realizing control rod position control. Therefore, data monitoring of insulation and direct resistance between coils of a driving mechanism of a nuclear power plant is important data for ensuring nuclear power safety. In the prior art, instruments such as a withstand voltage tester, an insulation resistance tester and the like are adopted to measure the insulation condition between coils; measuring point by using a universal meter and other instruments to obtain a direct resistance value; however, the driving mechanism of the nuclear power plant is required to simultaneously test the direct resistance and the insulation, and the direct resistance and the insulation can only be respectively measured by adopting the traditional measuring equipment. In addition, hundreds of same driving mechanisms are often arranged in a traditional nuclear power plant reactor at the same time, and a large amount of radioactive substances exist, so that if a voltage resistance tester and an insulation resistance tester are adopted to detect the driving of the nuclear power plant, a large amount of labor and time cost are consumed. And the safety of the workers cannot be guaranteed. Therefore, how to develop a novel tester for testing insulation and direct resistance of a driving mechanism of a nuclear power station can realize rapid and efficient measurement of insulation coefficients and direct resistance parameters among coils of a plurality of driving mechanisms in a reactor of the nuclear power station. Are directions that need to be studied by a person skilled in the art.
Disclosure of Invention
The invention provides an insulation and direct resistance tester for a driving mechanism of a nuclear power station. The method can realize the rapid and efficient measurement of the insulation coefficient and the direct resistance parameter between the coils of the driving mechanism of the nuclear power station. The labor cost consumed is reduced, and the safety of workers is improved.
The specific technical scheme adopted is as follows:
a nuclear power station drive mechanism insulation and direct resistance tester, comprising: the device comprises an insulation resistance tester, a direct resistance tester and a switching control device; the insulation resistance tester is connected with the nuclear power station driving mechanism and is used for detecting the insulation resistance of the nuclear power station driving mechanism; the direct resistance tester is connected with the nuclear power station driving mechanism and is used for testing the direct current resistance of the nuclear power station driving mechanism; the switching control module is respectively connected with the insulation resistance tester and the direct resistance tester and controls the insulation resistance tester and the direct resistance tester to work in turn.
By adopting the technical scheme: the insulation resistance value and the direct resistance value on the coil of the driving mechanism of the nuclear power station are respectively measured by the insulation resistance tester and the direct resistance tester, and the direct resistance tester for low-voltage detection and the insulation resistance tester for high-voltage detection are separated by the switching control device module, so that the working high voltage of the insulation resistance tester can not be connected into the low-voltage module when the insulation resistance tester works, and the safety of equipment is ensured. The method realizes the simultaneous measurement of the insulation resistance value and the direct resistance value of the coil of the driving mechanism of the nuclear power station by a single instrument.
Preferably, in the insulation and direct resistance tester for the driving mechanism of the nuclear power plant: the insulation resistance tester comprises an insulation resistance testing end panel and a plurality of insulation resistance detecting terminals, wherein each insulation resistance detecting terminal is integrally connected to the insulation resistance testing end panel; the direct resistance tester comprises a direct resistance testing end panel and a plurality of direct resistance detecting terminals, and each direct resistance detecting terminal is integrally connected to the direct resistance testing end panel; the number of the insulation resistance detection terminals is consistent with that of the direct resistance detection terminals; and the single insulation resistance detection terminal and the single direct resistance detection terminal form a detection terminal pair, and the detection terminal pair is arranged on a nuclear power station driving mechanism.
By adopting the technical scheme: the detection terminal pair is composed of a single insulation resistance detection terminal and a single direct resistance detection terminal, and each detection terminal pair is respectively arranged on a single nuclear power station driving mechanism; the detection of a plurality of nuclear power station driving mechanisms is realized by using one nuclear power station driving mechanism insulation and direct resistance tester at the same time. The plugging times of the test cable are reduced, point-by-point measurement is not needed, the detection efficiency is improved, workers are prevented from entering the reactor to work, and the safety of the workers is improved.
Compared with the prior art, the invention has simple structure and easy preparation. The method can be used for quickly and efficiently measuring the insulation coefficients and the direct resistance parameters of hundreds of driving mechanisms in the reactor of the nuclear power station. Manpower and time cost are greatly reduced, and the safety of workers is improved.
Drawings
The invention will be described in further detail with reference to the following detailed description and accompanying drawings:
FIG. 1 is a schematic structural diagram of the present invention.
The correspondence between each reference numeral and the part name is as follows:
3. a switching control device; 4. a pair of detection terminals; 11. an insulation resistance test end panel; 12. an insulation resistance detection terminal; 21. a direct resistance test end panel; 22. a direct resistance detection terminal;
Detailed Description
In order to more clearly illustrate the technical solution of the present invention, the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1:
a nuclear power station drive mechanism insulation and direct resistance tester, comprising: an insulation resistance tester, a direct resistance tester and a switching control device 3; the insulation resistance tester is connected with the nuclear power station driving mechanism and is used for detecting the insulation resistance of the nuclear power station driving mechanism; the direct resistance tester is connected with the nuclear power station driving mechanism and is used for testing the direct current resistance of the nuclear power station driving mechanism; the switching control module 3 is respectively connected with the insulation resistance tester and the direct resistance tester and controls the insulation resistance tester and the direct resistance tester to work in turn. The insulation resistance tester comprises an insulation resistance test end panel 11 and a plurality of insulation resistance detection terminals 12, wherein each insulation resistance detection terminal 12 is integrally connected to the insulation resistance test end panel 11; the direct resistance tester comprises a direct resistance testing end panel 21 and a plurality of direct resistance detecting terminals 22, wherein each direct resistance detecting terminal 22 is integrally connected to the direct resistance testing end panel 21; the numbers of the insulation resistance detection terminals 12 and the direct resistance detection terminals 22 are consistent; each of the nuclear power plant driving mechanisms is provided with a detection terminal pair including a single insulation resistance detection terminal 12 and a single direct resistance detection terminal 22.
In practice, through adding a switching control device 3 in the tester, the problem that high and low voltage physical quantities of the existing tester on the market can not be tested together is solved, the high-voltage part of the insulation test and the low-voltage part of the direct resistance test are safely distinguished through a high-voltage relay, the tester is ensured to accurately measure the insulation value and the direct resistance value and can not puncture other equipment modules, the position sensor coil and the electromagnetic coil are also conveniently distinguished, and the purpose that after one-time connection, the position sensor coil and the electromagnetic coil can be conveniently measured by only one tester, the insulation value can be measured, and the direct resistance value can be measured.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. The protection scope of the present invention is subject to the protection scope of the claims.
Claims (1)
1. The utility model provides a nuclear power station actuating mechanism is insulating with directly hinder tester which characterized in that includes: an insulation resistance tester, a direct resistance tester and a switching control device (3); the insulation resistance tester is connected with the nuclear power station driving mechanism and is used for detecting the insulation resistance of the nuclear power station driving mechanism; the direct resistance tester is connected with the nuclear power station driving mechanism and is used for testing the direct current resistance of the nuclear power station driving mechanism; the switching control module (3) is respectively connected with the insulation resistance tester and the direct resistance tester, controls the insulation resistance tester and the direct resistance tester to work simultaneously, and separates the direct resistance tester for low-voltage detection from the insulation resistance tester for high-voltage detection, so that working high voltage of the insulation resistance tester can not be connected into the low-voltage module in series when the insulation resistance tester works;
the insulation resistance tester comprises an insulation resistance testing end panel (11) and a plurality of insulation resistance detecting terminals (12), wherein each insulation resistance detecting terminal (12) is integrally connected to the insulation resistance testing end panel (11); the direct resistance tester comprises a direct resistance testing end panel (21) and a plurality of direct resistance detecting terminals (22), wherein each direct resistance detecting terminal (22) is integrally connected to the direct resistance testing end panel (21); the number of the insulation resistance detection terminals (12) is consistent with that of the direct resistance detection terminals (22); a single insulation resistance detection terminal (12) and a single direct resistance detection terminal (22) form a detection terminal pair (4), and the detection terminal pair (4) is installed on a nuclear power station driving mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710320546.9A CN108872706B (en) | 2017-05-09 | 2017-05-09 | Insulation and direct resistance tester for driving mechanism of nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710320546.9A CN108872706B (en) | 2017-05-09 | 2017-05-09 | Insulation and direct resistance tester for driving mechanism of nuclear power station |
Publications (2)
| Publication Number | Publication Date |
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| CN108872706A CN108872706A (en) | 2018-11-23 |
| CN108872706B true CN108872706B (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710320546.9A Active CN108872706B (en) | 2017-05-09 | 2017-05-09 | Insulation and direct resistance tester for driving mechanism of nuclear power station |
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Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592711A (en) * | 2008-05-30 | 2009-12-02 | 上海晨功机电设备成套有限公司 | Three-phase motor stator electrical property comprehensive test instrument |
| CN201819974U (en) * | 2010-09-14 | 2011-05-04 | 上海电机系统节能工程技术研究中心有限公司 | Comprehensive electrical performance test instrument for three-phase motor stator |
| CN203630227U (en) * | 2013-11-11 | 2014-06-04 | 中科华核电技术研究院有限公司北京分公司 | Special testing system for control rod driving mechanism |
| CN203630278U (en) * | 2013-11-11 | 2014-06-04 | 中科华核电技术研究院有限公司北京分公司 | Special testing system for rod position detector |
| CN103645395A (en) * | 2013-11-15 | 2014-03-19 | 四川圣维信息技术有限公司 | Isolation and protection circuit for high-voltage live-line monitoring |
| US20180037906A1 (en) * | 2014-09-17 | 2018-02-08 | Wageningen Universiteit | New phytophthora resistance gene |
| CN205193241U (en) * | 2015-11-02 | 2016-04-27 | 广州开元电子科技有限公司 | Take optoelectronic isolation's armature integrated test device |
| CN205428501U (en) * | 2015-12-09 | 2016-08-03 | 岭东核电有限公司 | Position measurement of nuclear power station reactor core stick and control rod drive mechanism's testing arrangement |
| CN205861834U (en) * | 2016-08-03 | 2017-01-04 | 四川网达科技有限公司 | Failure tester |
| CN107507656B (en) * | 2017-06-30 | 2019-06-04 | 中广核核电运营有限公司 | CRDM coil measurement system and method |
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| CN108872706A (en) | 2018-11-23 |
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