JP2009139310A5 - - Google Patents

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JP2009139310A5
JP2009139310A5 JP2007318179A JP2007318179A JP2009139310A5 JP 2009139310 A5 JP2009139310 A5 JP 2009139310A5 JP 2007318179 A JP2007318179 A JP 2007318179A JP 2007318179 A JP2007318179 A JP 2007318179A JP 2009139310 A5 JP2009139310 A5 JP 2009139310A5
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signal
signal cable
input
shield
nuclear power
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JP2007318179A
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JP2009139310A (en
JP5324079B2 (en
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Claims (4)

原子炉の炉心内部に設置した中性子束の量を検出する複数の局所出力領域モニタ検出器と、信号線及びシールド線を有し上記検出器により検出された検出信号を伝送する入力用信号ケーブルと、この入力用信号ケーブルから伝送された上記検出信号を増幅する検出信号用増幅器と、この検出信号用増幅器により増幅された信号に対して監視に必要な信号処理をする信号処理手段とを有する原子力発電所用中性子モニタシステムにおいて、
上記入力用信号ケーブルと上記検出信号用増幅器との間に接続され、信号ケーブル入力用コネクタ及び出力用コネクタと一体化された導電性の容器と、この容器内に配置され、信号線及びシールド線がコアに巻きつけられたインダクタとを有するコモンモードフィルタと、
信号線及びシールド線を有し、上記コモンモードフィルタと上記検出信号用増幅器とに接続される出力用信号ケーブルと、
を備え、上記導電性の容器の壁部は、上記入力用コネクタ又は出力用コネクタのシールド部を介して、上記入力用信号ケーブルのシールド線又は上記出力用信号ケーブルのシールド線に接続され、上記コアに巻きつけられた信号線は、上記入力用コネクタを介して上記入力用信号ケーブルの信号線に接続されるとともに、上記出力用コネクタを介して上記出力用信号ケーブルの信号線に接続され、上記コアに巻きつけられたシールド線は、上記入力用コネクタを介して上記入力用信号ケーブルのシールド線に接続されるとともに、上記出力用コネクタを介して上記出力用信号ケーブルのシールド線に接続されることを特徴とする原子力発電所用中性子モニタシステム。 A plurality of local output region monitor detectors for detecting the amount of neutron flux installed in the core of the nuclear reactor, and an input signal cable having a signal line and a shield line and transmitting a detection signal detected by the detector; And a nuclear power detector having a detection signal amplifier for amplifying the detection signal transmitted from the input signal cable, and a signal processing means for performing signal processing necessary for monitoring the signal amplified by the detection signal amplifier. In the neutron monitor system for power plants,
A conductive container connected between the input signal cable and the detection signal amplifier and integrated with the signal cable input connector and the output connector, and the signal line and the shield line disposed in the container. A common mode filter having an inductor wound around the core;
An output signal cable having a signal line and a shield line and connected to the common mode filter and the detection signal amplifier;
A wall portion of the conductive container is connected to a shield wire of the input signal cable or a shield wire of the output signal cable via a shield portion of the input connector or the output connector, The signal line wound around the core is connected to the signal line of the input signal cable through the input connector, and is connected to the signal line of the output signal cable through the output connector, The shield wire wound around the core is connected to the shield wire of the input signal cable via the input connector, and is connected to the shield wire of the output signal cable via the output connector. A neutron monitor system for a nuclear power plant. 請求項１記載の原子力発電所用中性子モニタシステムにおいて、上記導電性の容器の壁部は、上記入力用コネクタのシールド部を介して、上記入力用信号ケーブルのシールド線に接続され、上記出力用信号ケーブルのシールド線とはコモンモードフィルタを介して絶縁されていることを特徴とする原子力発電所用中性子モニタシステム。 In claim 1 Symbol placement nuclear power plant neutron monitoring system, the wall of the container of the conductive via shielded portion of the connector the input is connected to the shield line of the input signal cable for the output A neutron monitor system for a nuclear power plant characterized in that it is insulated from a shielded wire of a signal cable through a common mode filter . 請求項１、２のうちのいずれか一項記載の原子力発電所用中性子モニタシステムにおいて、上記コアの内径に対する外径の寸法比を半径比とすると、上記コアの半径比は、１．７８〜３．５９であることを特徴とする原子力発電所用中性子モニタシステム。 3. The neutron monitor system for a nuclear power plant according to claim 1, wherein a radius ratio of the outer diameter to the inner diameter of the core is 1.78-3. 59. A neutron monitor system for a nuclear power plant, 請求項１、２、３のうちのいずれか一項記載の原子力発電所用中性子モニタシステムにおいて、上記コモンモードフィルタのシールド線及び信号線は、バイファイラ巻き又はキャンセル巻きにより、上記コアに巻かれていることを特徴とする原子力発電所用中性子モニタシステム。 The neutron monitor system for a nuclear power plant according to any one of claims 1, 2, and 3, wherein the shield wire and the signal wire of the common mode filter are wound around the core by bifilar winding or cancellation winding. A neutron monitor system for a nuclear power plant.
JP2007318179A 2007-12-10 2007-12-10 Neutron monitoring system for nuclear power plants Active JP5324079B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007318179A JP5324079B2 (en) 2007-12-10 2007-12-10 Neutron monitoring system for nuclear power plants

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Application Number Priority Date Filing Date Title
JP2007318179A JP5324079B2 (en) 2007-12-10 2007-12-10 Neutron monitoring system for nuclear power plants

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JP2009139310A JP2009139310A (en) 2009-06-25
JP2009139310A5 true JP2009139310A5 (en) 2010-11-11
JP5324079B2 JP5324079B2 (en) 2013-10-23

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013213760A (en) * 2012-04-03 2013-10-17 Toshiba Corp Start-up range monitor calibration system
US9318226B2 (en) 2012-10-09 2016-04-19 Westinghouse Electric Company Llc Apparatus and method to inspect, modify, or repair nuclear reactor core shrouds
US10672527B2 (en) * 2017-01-27 2020-06-02 Westinghouse Electric Company Llc In-core transmitter device structured to wirelessly emit signals corresponding to detected neutron flux

Family Cites Families (16)

* Cited by examiner, † Cited by third party
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JP2877609B2 (en) * 1992-03-30 1999-03-31 株式会社東芝 Start-up area monitoring system for nuclear power plants
JP3300496B2 (en) * 1993-09-17 2002-07-08 株式会社東芝 Radiation measurement system
JPH07162257A (en) * 1993-12-09 1995-06-23 Toshiba Corp Monitoring device for nuclear reactor starting area
JP3651268B2 (en) * 1998-07-08 2005-05-25 学校法人金沢工業大学 Magnetic measurement method and apparatus
JP4925232B2 (en) * 2001-02-02 2012-04-25 株式会社バッファロー Electric field probe
JP2003022875A (en) * 2001-07-06 2003-01-24 Sumitomo Wiring Syst Ltd Conductive member
JP4047025B2 (en) * 2002-02-05 2008-02-13 株式会社東芝 Noise reduction equipment for radiation measurement equipment
JP2004271256A (en) * 2003-03-06 2004-09-30 Hitachi Ltd Apparatus for measuring neutron for nuclear power generation facility
JP4049064B2 (en) * 2003-09-12 2008-02-20 株式会社日立製作所 Signal transmission device
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JP2005233833A (en) * 2004-02-20 2005-09-02 Sony Corp Electromagnetic interference measuring system
JP2006115481A (en) * 2004-09-15 2006-04-27 Chugoku Electric Power Co Inc:The Distribution apparatus, distribution board and wiring method of the distribution apparatus
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JP4135009B2 (en) * 2005-09-14 2008-08-20 株式会社日立製作所 Neutron instrumentation system for nuclear power plant
JP4914055B2 (en) * 2005-11-16 2012-04-11 日立Ｇｅニュークリア・エナジー株式会社 Neutron monitor system
JP4512551B2 (en) * 2005-12-13 2010-07-28 日立Ｇｅニュークリア・エナジー株式会社 Reactor power measuring device and power measuring device

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