CN102280150A - Rod position detecting system of nuclear power plant and method for testing free rod-drop time thereof - Google Patents
Rod position detecting system of nuclear power plant and method for testing free rod-drop time thereof Download PDFInfo
- Publication number
- CN102280150A CN102280150A CN2011102368546A CN201110236854A CN102280150A CN 102280150 A CN102280150 A CN 102280150A CN 2011102368546 A CN2011102368546 A CN 2011102368546A CN 201110236854 A CN201110236854 A CN 201110236854A CN 102280150 A CN102280150 A CN 102280150A
- Authority
- CN
- China
- Prior art keywords
- rod
- control rod
- position detecting
- testing
- detecting device
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/10—Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C7/00—Control of nuclear reaction
- G21C7/06—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section
- G21C7/08—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section by displacement of solid control elements, e.g. control rods
- G21C7/12—Means for moving control elements to desired position
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C7/00—Control of nuclear reaction
- G21C7/36—Control circuits
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention discloses a rod position detecting system of a nuclear power plant and a method for testing free rod-drop time thereof. The detecting system comprises a position detecting device and a control rod set arranged in a pressure container; the position detecting device is installed outside a travel housing; the position detecting device is connected with the control rod set through a control rod driving mechanism, wherein the position detecting device comprises a plurality of continuous control units; each control unit comprises a sensor coil and a rod drop testing coil; a plurality of the sensor coils are powered by a transformer T1; the rod drop testing coils of each control unit are connected end to end to form two leading-out terminals for testing induction voltage. According to the rod position detecting system of the nuclear power plant and the method for testing free rod-drop time thereof provided by the invention, a curve of rod drop time is obtained by arranging the rod drop testing coil and using the voltage induced in the rod drop testing coil during the rapid drop course of the control rod; and the free rod-drop time can be tested conveniently and the testing reliability is further improved.
Description
Technical field
The present invention relates to a kind of control rod detection system and free-fall insertion time test method thereof, relate in particular to a kind of nuclear power station rod position detecting system and free-fall insertion time test method thereof.
Background technology
The excellent position detecting system of nuclear power station utilizes the control rod positional detecting device, uses coil-induced principle, demonstrates the position of control rod at reactor core.When outage, the control rod assembly falls into reactor core fast by deadweight, the shutdown of realization response heap, and rely on the voltage that induces in the control rod landing process fast this moment in control rod positional detecting device coil, obtain the rod drop time curve.
In the nuclear reactor of pressurized-water reactor nuclear power plant, the control rod assembly is in the pressure vessel of High Temperature High Pressure, the position reaction of control rod in reactor core the operating mode of reactor, but its position can only be measured indirectly, the control rod position detecting device is mounted in the outside of control rod stroke case (pressure-containing member), utilize the principle of electromagnetic induction, convert the mechanical shift of control rod to electric signal and handle, be used to monitor the physical location of control rod at reactor core; In the emergency shut-down operating mode, the control rod assembly falls into reactor core fast by deadweight, and the shutdown of realization response heap utilizes the induced voltage signal in the coil to monitor the control rod rod drop time this moment, realizes the detection to shutdown condition.See also Fig. 1, nuclear power station rod position detecting system comprises positional detecting device 1 and the control rod group of being located in the pressure vessel 43, described positional detecting device 1 is installed in the outside of stroke case 7, described positional detecting device 1 links to each other with control rod drive mechanisms (CRD) 2, described control rod drive mechanisms (CRD) comprises hook parts, magnetic inversion line coil assembly, pressure-containing member and drive-rod part, and described drive-rod part links to each other with control rod group 3.
The control rod position detecting device of reactor is a principle of utilizing electromagnetic induction, measures the physical location of control rod at reactor core.U.S.'s Westinghouse Electrical Corp. is 98805005.6 at application number, denomination of invention is for having described the apparatus and method of command bundle rods for nuclear reactors free-fall time in " measuring the command bundle rods for nuclear reactors apparatus and method of free-fall time ", as shown in Figure 2, a plurality of cell windings 32 that are provided with along the series connection of control rod transmission housing have been used, the laminate patch of cell winding 32 is divided into two group A that sandwich mutually and group B, respectively with the scrambler 34 of organizing A, the scrambler 36 of group B links to each other, each cell winding 32 has two exits, one of them exit connects together and links to each other with common wire 42, as the A1 among Fig. 3 ... A24.The other end of each coil connects together after the Lo of transformer T1 one side is passed three resistance R 1, R2 and R3, and R1 is a coil resistance, and R2 is the resistance from coil to excellent position indication electronic housing cable, and R3 is the output impedance of encoder plate.The sensor that a plurality of cell windings are formed is powered by single transformer T1.In excellent drop test, the short circuit of transformer T1 primary coils.The testing procedure of its control rod free-fall time comprises: disconnect the transformer main from power supply; Make transformer T1 short circuit; And the voltage that in impedance on the common transmission line, forms during by a plurality of cell winding when measuring control rod and falling, impedance is shown in R4 among Fig. 3 on the common transmission line.The test of this control rod free-fall insertion time is with the primary short of transformer when needing a relay that power supply is cut off, relay contact 52 as short circuit transformer T1 main, simultaneously with the secondary short circuited of transformer, obtain the rod drop time curve by the variation that detects the voltage on the common transmission cable 42 then, and the resistance R 4 on the common wire 42 is very little and the consistance of a plurality of clusters of very difficult assurance, the rod test that falls of emergency shut-down during the very difficult realization response stack operation, therefore, be necessary further to improve nuclear power station rod position detecting system and free-fall insertion time test method thereof, make test convenient reliable.
Summary of the invention
Technical matters to be solved by this invention provides a kind of nuclear power station rod position detecting system and free-fall insertion time test method thereof, the free-fall insertion time when being more convenient for measuring the control rod free-falling, and fall the simultaneously free-fall insertion time test of rod of a plurality of clusters that emergency shut-down causes in the energy measurement reactor operation, further improve the reliability of test.
The present invention solves the problems of the technologies described above the technical scheme that adopts to provide a kind of nuclear power station rod position detecting system, comprise positional detecting device and be located at the interior control rod group of pressure vessel, described positional detecting device is installed in the outside of stroke case, described positional detecting device links to each other with control rod drive mechanisms (CRD), described control rod drive mechanisms (CRD) comprises the hook parts, the magnetic inversion line coil assembly, pressure-containing member and drive-rod part, described drive-rod part links to each other with the control rod group, wherein, described positional detecting device comprises a plurality of successive control unit, described control module is divided into A alternately, two groups of B, each control module comprises cell winding and the two kinds of coils of excellent test coil that fall, a plurality of cell windings are powered by a transformer T1, the end to end exit that is formed with two test induced voltages of the excellent test coil that falls of each control module.
The present invention also provides free-fall insertion time test method in a kind of above-mentioned nuclear power station rod position detecting system for solving the problems of the technologies described above, and described method of testing comprises the steps:
A) open the preceding rod test that falls of heap: disconnect the power supply of transformer T1, control rod is by the deadweight whereabouts, and the induced voltage curve of test on two exits of excellent test coil that fall promptly obtains the rod drop time curve in this process;
B) run duration: the power supply that adopts the signal controlling transformer T1 of shutdown isolating switch, when emergency shut-down occurring, the signal of described shutdown isolating switch cuts off power supply, a plurality of control clusters fall simultaneously by deadweight, in this process by fall induced voltage curve on two exits of excellent test coil of test, obtain the rod drop time curve, can gather the free-fall insertion time of a plurality of clusters simultaneously.
The present invention contrasts prior art following beneficial effect: nuclear power station rod position detecting system provided by the invention and free-fall insertion time test method thereof, by being provided with excellent test coil, utilize the control rod voltage of in the excellent test coil that falls, responding in the process that hurtles down to obtain the rod drop time curve, test process is not subjected to the influence of supply transformer, be convenient to test the free-fall insertion time, further improve the reliability of test.
Description of drawings
Fig. 1 is a nuclear power station rod position detecting system structural representation;
Fig. 2 is magnetic test coil structural representation in the existing excellent position detecting system;
Fig. 3 is the circuit theory synoptic diagram that has the rod test now;
Fig. 4 is the existing transformer short circuit synoptic diagram during rod test that falls;
Fig. 5 is magnetic test coil structural representation in the present invention's rod position detecting system;
Fig. 6 is the excellent circuit theory synoptic diagram of testing for the present invention falls.
Among the figure:
1 positional detecting device, 2 control rod drive mechanisms (CRD), 3 control rod groups
4 pressure vessels, 6 high-temperature high pressure waters, 7 stroke cases
8 cell windings 9 excellent test coil 32 coils that fall
Scrambler 42 common wires of 36 groups of B of scrambler of 34 groups of A
The relay contact of 52 short circuit transformer T1 mains.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
Fig. 5 is magnetic test coil structural representation in the present invention's rod position detecting system.
See also Fig. 1 and Fig. 5, the present invention's rod position detecting system comprises positional detecting device 1 and the control rod group of being located in the pressure vessel 43, described positional detecting device 1 is installed in the outside of stroke case 7, described positional detecting device 1 links to each other with control rod drive mechanisms (CRD) 2, described control rod drive mechanisms (CRD) comprises the hook parts, the magnetic inversion line coil assembly, pressure-containing member and drive-rod part, described drive-rod part links to each other with control rod group 3, wherein, described positional detecting device 1 comprises a plurality of successive control unit, described control module is divided into A alternately, two groups of B, each control module comprises the cell winding 8 and the 9 two kinds of coils of excellent test coil that fall, the cell winding 8 of each control module has two exits, one of them exit connects together and links to each other with common wire 42, the excellent test coil 9 end to end exits that are formed with two test induced voltages that fall of each control module.
The cell winding 8 of sniffer control module of the present invention is identical with cell winding 32 shown in Figure 2, when an alternating current passes through coil, produce exchange flux, when the control rod of ferromagnetic material passes through this coil position, the impedance of coil will change, the digital coding circuit gather change in voltage that this impedance variation causes handle can controlled rod position signalling, describe in detail no longer one by one at this.But as can be seen from Figure 5, positional detecting device of the present invention has increased the excellent test coil that falls, the excellent test coil grouping that falls of each control module is carried out end to end and is formed two exits, this excellent test coil that falls is exclusively used in the test of control rod free-fall insertion time, therefore, free-fall insertion time when being more convenient for measuring the control rod free-falling, and fall the simultaneously free-fall insertion time test of rod of a plurality of clusters that emergency shut-down causes in the energy measurement reactor operation, further improve the reliability of test.
Fig. 6 is the excellent circuit theory synoptic diagram of testing for the present invention falls.
Please continue referring to Fig. 6, free-fall insertion time test method is as follows in the above-mentioned nuclear power station rod position detecting system:
A) open when test rod of falling before the heap, disconnect the power supply of transformer T1, control rod falls by deadweight, tests the induced voltage curve on 9 two exits of excellent test coil that fall in this process, promptly obtains the rod drop time curve;
B) run duration, adopt the power supply of the signal controlling transformer T1 of shutdown isolating switch, when emergency shut-down occurring, the signal of described shutdown isolating switch cuts off power supply, a plurality of control clusters fall simultaneously by deadweight, by testing the induced voltage curve on two exits of excellent test coil, obtain the rod drop time curve in this process, can gather the free-fall insertion time of a plurality of clusters simultaneously.
As can be seen from Figure 4, during the test of existing control rod free-fall insertion time the 115V power supply of transformer T1 is disconnected, and make main, the secondary short circuited of transformer T1, so that transformer T1 removes, record excellent test curve from public wiring 42 then from the excellent test loop that falls.And the test of control rod free-fall insertion time of the present invention, test excellent test curve from the excellent test coil 9 of falling of special use, needn't consider the influence of transformer T1, because transformer T1 is original just not in this test loop, so the test of free-fall insertion time is convenient reliable.
In sum, it is very important to the safety of guaranteeing nuclear reactor accurately to record control rod group 3 free-fall insertion time when the reactor shutdown.But as can be seen from Figure 1, the control rod assembly is positioned at pressure vessel 4 inside of sealing in the presurized water reactor, and in the high-temperature high pressure water 6 of band radiation, it is very difficult directly testing its position.Therefore, control rod positional detecting device 1 has adopted the principle of electromagnetic induction, positional detecting device 1 is installed in the outside of control rod stroke case 7, and the coil that utilizes control rod group 3 to insert, pass control rod positional detecting device 1 causes that the variation of coil impedance detects the position of control rod group 3.Control rod positional detecting device 1 provided by the invention comprises the cell winding 8 and the excellent test coil 9 that falls, cell winding 8 wherein is used for realizing detecting the position of control rod group 3 at reactor core, and the excellent test coil 9 that falls is exclusively used in the detection of control rod free-fall insertion time, when the rod that falls detects, detect the free-fall insertion time of control rod group 3 accurately by magnetic induction voltage in the excellent test coil 9 that falls.
Though the present invention discloses as above with preferred embodiment; right its is not in order to qualification the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when can doing a little modification and perfect, so protection scope of the present invention is when with being as the criterion that claims were defined.
Claims (2)
1. nuclear power station rod position detecting system, comprise positional detecting device (1) and be located at the interior control rod group (3) of pressure vessel (4), described positional detecting device (1) is installed in the outside of stroke case (7), described positional detecting device (1) links to each other with control rod drive mechanisms (CRD) (2), described control rod drive mechanisms (CRD) comprises the hook parts, the magnetic inversion line coil assembly, pressure-containing member and drive-rod part, described drive-rod part links to each other with control rod group (3), it is characterized in that, described positional detecting device (1) comprises a plurality of successive control unit, described control module is divided into A alternately, two groups of B, each control module comprises cell winding (8) and falls (9) two kinds of coils of excellent test coil, a plurality of cell windings are powered by a transformer T1, the end to end exit that is formed with two test induced voltages of the excellent test coil (9) that falls of each control module.
2. free-fall insertion time test method in the nuclear power station as claimed in claim 1 rod position detecting system is characterized in that described method of testing comprises the steps:
A) open when test rod of falling before the heap, disconnect the power supply of transformer T1, control rod group (3) falls by deadweight, tests the induced voltage curve on two exits of excellent test coil that fall in this process, promptly obtains the rod drop time curve;
B) run duration, adopt the power supply of the signal controlling transformer T1 of shutdown isolating switch, when emergency shut-down occurring, the signal of described shutdown isolating switch cuts off power supply, a plurality of control rod groups (3) fall simultaneously by deadweight, by testing the induced voltage curve on two exits of excellent test coil, obtain the rod drop time curve in this process.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110236854.6A CN102280150B (en) | 2011-08-18 | 2011-08-18 | Rod position detecting system of nuclear power plant and method for testing free rod-drop time thereof |
| PCT/CN2012/001080 WO2013023437A1 (en) | 2011-08-18 | 2012-08-14 | Nuclear power station rod position detection system and free rod dropping time testing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110236854.6A CN102280150B (en) | 2011-08-18 | 2011-08-18 | Rod position detecting system of nuclear power plant and method for testing free rod-drop time thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102280150A true CN102280150A (en) | 2011-12-14 |
| CN102280150B CN102280150B (en) | 2014-04-02 |
Family
ID=45105548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110236854.6A Active CN102280150B (en) | 2011-08-18 | 2011-08-18 | Rod position detecting system of nuclear power plant and method for testing free rod-drop time thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102280150B (en) |
| WO (1) | WO2013023437A1 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102543229A (en) * | 2012-02-08 | 2012-07-04 | 上海昱章电气成套设备有限公司 | Nuclear electric rod position measurement device based on single coils and difference value measurement method of nuclear power rod position thereof |
| WO2013023437A1 (en) * | 2011-08-18 | 2013-02-21 | 国核自仪系统工程有限公司 | Nuclear power station rod position detection system and free rod dropping time testing method thereof |
| CN104898069A (en) * | 2014-03-06 | 2015-09-09 | 江苏核电有限公司 | Control rod driving mechanism AC power supply module test device |
| CN105448362A (en) * | 2015-11-23 | 2016-03-30 | 中核核电运行管理有限公司 | Dynamic rod carving method utilizing power measuring range detector and taking signal as signal source |
| CN108735310A (en) * | 2018-06-04 | 2018-11-02 | 江苏核电有限公司 | A kind of analog training device of control rod drive mechanism measurement of electric parameter |
| CN112599263A (en) * | 2020-12-05 | 2021-04-02 | 核电运行研究(上海)有限公司 | Method for measuring rod drop time of control rod without cutting off excitation power supply |
| CN112599255A (en) * | 2020-12-05 | 2021-04-02 | 核电运行研究(上海)有限公司 | Control rod drop reference signal generating device and method thereof |
| CN112599265A (en) * | 2020-12-05 | 2021-04-02 | 核电运行研究(上海)有限公司 | Control rod drop time measuring method integrated with rod position measuring equipment |
| CN107851469B (en) * | 2015-07-31 | 2021-08-31 | 纽斯高动力有限责任公司 | Control rod position indicator |
| CN114203007A (en) * | 2021-12-14 | 2022-03-18 | 三门核电有限公司 | Rod position coding card fault simulation system and troubleshooting system |
| CN114678146A (en) * | 2022-04-14 | 2022-06-28 | 三门核电有限公司 | Detection system of rod position system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112164480B (en) * | 2020-09-03 | 2023-03-24 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Rod drop test device and system of control rod drive wire |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1161793C (en) * | 1997-05-13 | 2004-08-11 | 西屋电气有限责任公司 | System and method for measuring free fall time of nuclear reactor control rods |
| CN1808629A (en) * | 2005-01-21 | 2006-07-26 | 清华大学 | Coil self-inductance based control rod position measuring system |
| US20090252272A1 (en) * | 2008-01-09 | 2009-10-08 | Analysis And Measurement Services Corporation | Advanced Digital Control Rod Position Indication System with Rod Drop Monitoring for Nuclear Power Plants |
| CN101840741A (en) * | 2010-05-31 | 2010-09-22 | 中国核动力研究设计院 | Principal current controller of rod position measuring system in nuclear power station in the manner of pulse-width modulation closed loop feedback regulation |
| WO2011014352A1 (en) * | 2009-07-29 | 2011-02-03 | Westinghouse Electric Company Llc | Digital nuclear control rod control system |
| KR101022161B1 (en) * | 2010-08-30 | 2011-03-24 | 주식회사 리얼게인 | Method for measuring dropping time of control rod |
| CN202205469U (en) * | 2011-08-18 | 2012-04-25 | 国核自仪系统工程有限公司 | System for detecting rod position of nuclear power plant |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0886898A (en) * | 1994-09-19 | 1996-04-02 | Toshiba Corp | Control rod position detector |
| JP3426984B2 (en) * | 1998-10-20 | 2003-07-14 | 三菱重工業株式会社 | Magnetostrictive wire control rod position detector |
| CN102280150B (en) * | 2011-08-18 | 2014-04-02 | 国核自仪系统工程有限公司 | Rod position detecting system of nuclear power plant and method for testing free rod-drop time thereof |
-
2011
- 2011-08-18 CN CN201110236854.6A patent/CN102280150B/en active Active
-
2012
- 2012-08-14 WO PCT/CN2012/001080 patent/WO2013023437A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1161793C (en) * | 1997-05-13 | 2004-08-11 | 西屋电气有限责任公司 | System and method for measuring free fall time of nuclear reactor control rods |
| CN1808629A (en) * | 2005-01-21 | 2006-07-26 | 清华大学 | Coil self-inductance based control rod position measuring system |
| US20090252272A1 (en) * | 2008-01-09 | 2009-10-08 | Analysis And Measurement Services Corporation | Advanced Digital Control Rod Position Indication System with Rod Drop Monitoring for Nuclear Power Plants |
| WO2011014352A1 (en) * | 2009-07-29 | 2011-02-03 | Westinghouse Electric Company Llc | Digital nuclear control rod control system |
| CN101840741A (en) * | 2010-05-31 | 2010-09-22 | 中国核动力研究设计院 | Principal current controller of rod position measuring system in nuclear power station in the manner of pulse-width modulation closed loop feedback regulation |
| KR101022161B1 (en) * | 2010-08-30 | 2011-03-24 | 주식회사 리얼게인 | Method for measuring dropping time of control rod |
| CN202205469U (en) * | 2011-08-18 | 2012-04-25 | 国核自仪系统工程有限公司 | System for detecting rod position of nuclear power plant |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013023437A1 (en) * | 2011-08-18 | 2013-02-21 | 国核自仪系统工程有限公司 | Nuclear power station rod position detection system and free rod dropping time testing method thereof |
| CN102543229A (en) * | 2012-02-08 | 2012-07-04 | 上海昱章电气成套设备有限公司 | Nuclear electric rod position measurement device based on single coils and difference value measurement method of nuclear power rod position thereof |
| CN104898069A (en) * | 2014-03-06 | 2015-09-09 | 江苏核电有限公司 | Control rod driving mechanism AC power supply module test device |
| CN107851469B (en) * | 2015-07-31 | 2021-08-31 | 纽斯高动力有限责任公司 | Control rod position indicator |
| CN105448362A (en) * | 2015-11-23 | 2016-03-30 | 中核核电运行管理有限公司 | Dynamic rod carving method utilizing power measuring range detector and taking signal as signal source |
| CN108735310A (en) * | 2018-06-04 | 2018-11-02 | 江苏核电有限公司 | A kind of analog training device of control rod drive mechanism measurement of electric parameter |
| CN108735310B (en) * | 2018-06-04 | 2024-06-11 | 江苏核电有限公司 | Simulation training device for measuring electrical parameters of control rod driving mechanism |
| CN112599255A (en) * | 2020-12-05 | 2021-04-02 | 核电运行研究(上海)有限公司 | Control rod drop reference signal generating device and method thereof |
| CN112599265A (en) * | 2020-12-05 | 2021-04-02 | 核电运行研究(上海)有限公司 | Control rod drop time measuring method integrated with rod position measuring equipment |
| CN112599263A (en) * | 2020-12-05 | 2021-04-02 | 核电运行研究(上海)有限公司 | Method for measuring rod drop time of control rod without cutting off excitation power supply |
| WO2022116367A1 (en) * | 2020-12-05 | 2022-06-09 | 核电运行研究(上海)有限公司 | Control rod drop time measurement method integrated with rod position measurement device |
| CN112599265B (en) * | 2020-12-05 | 2023-02-10 | 核电运行研究(上海)有限公司 | Control rod drop time measuring method integrated with rod position measuring equipment |
| CN112599255B (en) * | 2020-12-05 | 2023-02-10 | 核电运行研究(上海)有限公司 | Control rod drop reference signal generating device and method thereof |
| CN112599263B (en) * | 2020-12-05 | 2023-02-14 | 核电运行研究(上海)有限公司 | Method for measuring rod drop time of control rod without cutting off excitation power supply |
| CN114203007A (en) * | 2021-12-14 | 2022-03-18 | 三门核电有限公司 | Rod position coding card fault simulation system and troubleshooting system |
| CN114203007B (en) * | 2021-12-14 | 2024-04-09 | 三门核电有限公司 | Bar code card fault simulation system and fault investigation system |
| CN114678146A (en) * | 2022-04-14 | 2022-06-28 | 三门核电有限公司 | Detection system of rod position system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102280150B (en) | 2014-04-02 |
| WO2013023437A1 (en) | 2013-02-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102280150B (en) | Rod position detecting system of nuclear power plant and method for testing free rod-drop time thereof | |
| CN202205469U (en) | System for detecting rod position of nuclear power plant | |
| CN202837494U (en) | Contactor state inspection device | |
| CN102540034B (en) | High-voltage transformer bushing tap grounding on-line monitoring device | |
| CN102129763A (en) | CVT (Capacitor Voltage Transformer) online monitoring system | |
| CN201464600U (en) | Self-powered power failure indicator | |
| CN105589030A (en) | System and method of testing high-voltage circuit breaker | |
| CN101614798B (en) | Polarity detection system of electronic transformer | |
| CN105527555B (en) | The transmitting transformer control system of other early warning can be classified | |
| CN101776739A (en) | Station failure automatic detection method for kilowatthour meter automatic calibration | |
| CN101551442A (en) | A generator rotor insulation on-line monitoring grounding locating method and device | |
| CN201837712U (en) | Online monitoring device of HGIS (hybrid gas insulated switchgear) energy storage motor | |
| CN203732715U (en) | Electric energy meter withstand voltage test device | |
| CN205229412U (en) | Visual portable circuit breaker operating device state detection device | |
| CN203054193U (en) | On-line monitoring system for mechanical characteristic of vacuum circuit breaker | |
| CN204597634U (en) | A kind of bank electricity intelligent protection supervising device peculiar to vessel | |
| CN202600100U (en) | On-line monitoring device of high-voltage transformer bushing tap grounding | |
| CN103854711A (en) | Method for analyzing turn-off time performance of shut-down circuit breaker of reactor | |
| CN201576900U (en) | Multifunctional 10 to 35KV electrical test terminal box of central switch cabinet | |
| CN202815152U (en) | Transformer high-voltage insulation test equipment | |
| CN211014515U (en) | Cable core alignment detection device | |
| CN202502192U (en) | Insulated voltage withstand test apparatus of FFC | |
| CN201464596U (en) | Electronic transducer polarity detecting system | |
| CN102491069A (en) | Intelligent wireless detecting system for longitudinal tearing of conveying belts | |
| CN207096382U (en) | A kind of detachable full-automatic insulator detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 200241 No. 428 East Jiangchuan Road, Shanghai, Minhang District Patentee after: STATE NUCLEAR POWER AUTOMATION SYSTEM ENGINEERING Co.,Ltd. Address before: 200233, No. 41 Rainbow Road, Shanghai, Xuhui District Patentee before: STATE NUCLEAR POWER AUTOMATION SYSTEM ENGINEERING Co.,Ltd. |