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1. 发明专利

JPS6065490A METHOD OF PRODUCING RUBBER AND PLASTIC INSULATED POWER CABLE CONNECTOR 失效
公开(公告)号：JPS6065490A
公开(公告)日：1985-04-15
申请号：JP17281183
申请日：1983-09-19
申请人： TOKYO ELECTRIC POWER CO , HITACHI CABLE
发明人： NAKAGAWA HIDEYUKI , YAMAGUCHI MASAYUKI , TANNO SHIROU , SATOU HIDEO , ANDOU YORIO
IPC分类号： H01R43/00 , H02G1/14

2. 发明专利

JPS59202075A Diagnosis of insulation deterioration of power cable 失效
标题翻译：电力电缆绝缘检测诊断
公开(公告)号：JPS59202075A
公开(公告)日：1984-11-15
申请号：JP7688583
申请日：1983-04-30
申请人： Hitachi Cable Ltd
发明人： SOMA KENICHIROU , SHIBATA MAKOTO , KOTANI KAZUO , YAMAMOTO SATORU , YOSHIMOTO TERUO , ANDOU YORIO , IKEDA TADAYOSHI
IPC分类号： G01R31/02 , G01R31/12
CPC分类号： G01R31/021
摘要： PURPOSE:To prevent a dielectric breakdown accident caused by a water treeing of a power cable, by detecting the water treeing generated to the power cable in a hot-line state. CONSTITUTION:A power source transformer 1, an earthing transformer 3 and a cable 4 to be measured are connected to a high voltage matrix line 2 and a DC component measuring apparatus 6 is connected to the earthing wire 5 drawn out from the metal shield layer of the cable 4. AC voltage is applied to the cable 4 while the DC component of the current of the earthing wire 5 is detected and the polarity, the density and the time characteristics thereof are analyzed. By this method, the presence or absence of a water treeing the magnitude and the generating direction of the water treeing in the cable insulator are detected and the propriety in the use continuation of the cable is judged.
摘要翻译：目的：通过检测在热线状态下对电力电缆产生的水树，防止电力电缆水树枝引起的电介质故障事故。构成：将电源变压器1，接地变压器3和被测电缆4连接到高压矩阵线2，将直流成分测量装置6连接到从金属屏蔽层电缆4.在检测接地线5的电流的直流分量的同时对电缆4施加交流电压，分析其极性，密度和时间特性。通过这种方法，检测出电缆绝缘体中水树的大小和产生方向的水的存在或不存在，并且判断电缆的使用延续中的适当性。

3. 发明专利

JPS57162211A FIREPROOF LAYER FORMING MATERIAL 失效
公开(公告)号：JPS57162211A
公开(公告)日：1982-10-06
申请号：JP4764081
申请日：1981-03-31
申请人： HITACHI CABLE
发明人： NAKAGAWA SHINKICHI , OGURA JIROU , YAGIYUU HIDEKI , KAKIHANA TOSHIO , KIMURA KUNIO , ANDOU YORIO
IPC分类号： C09K21/14 , H01B7/282 , H01B7/295 , H01B7/42

4. 发明专利

JPS5771493A Synthetic electric insulation paper 失效
标题翻译：合成电绝缘纸
公开(公告)号：JPS5771493A
公开(公告)日：1982-05-04
申请号：JP14783780
申请日：1980-10-22
申请人： Hitachi Cable
发明人： ANDOU YORIO , SATOU MASAKATSU , KANAMARU KIMIHARU , NOZAWA HIDEYUKI
IPC分类号： B32B27/10 , D21H27/30 , H01B3/52 , H01B17/60

5. 发明专利

JPS5666116A METHOD OF LAYING CABLE 失效
公开(公告)号：JPS5666116A
公开(公告)日：1981-06-04
申请号：JP14162679
申请日：1979-11-01
申请人： HITACHI CABLE
发明人： ANDOU YORIO , KANAMARU KIMIHARU , MINAFUJI JIYUNICHI
IPC分类号： H02G9/02 , H02G1/06 , H02G1/08

6. 发明专利

JPS5479695A LEAK OIL DETECTING APPARATUS 失效
公开(公告)号：JPS5479695A
公开(公告)日：1979-06-25
申请号：JP14692177
申请日：1977-12-07
申请人： HITACHI CABLE
发明人： KANAMARU KIMIHARU , KAJIO HIROSHI , KASHIMA SHIYUNEI , ANDOU YORIO
IPC分类号： G01M3/38 , F17D5/02 , G01M3/04 , G01N21/59
摘要： PURPOSE:To enhance the performance and reliability of apparatus, by providing a light source at the terminal of one piece and a photo detector at the terminal of the other piece of the optical fibers opposedly disposed in a way so that the optical axis may coincide with each other across a certain gap, and detecting the leak oil entering this gap. CONSTITUTION:Optical fibers 1 are opposedly disposed, being spaced by a gap 10, in a way that the optical axis may coincide with each other. A detector box 2 is provided in a manner to cover the opposed disposition of optical fibers 1, and this detector box 2 is provided with an oil entry hole 21. In the absence of oil leak, the light emitted from a light source 4 passes through the optical fiber 1 and reaches a photo detector 5 to be detected by a detector 6. If oil leak accident takes place, since the oil fills the gap 10 of optical fibers 1, the transmissivity of light varies, and almost no light reaches the photo detector 5 in a serious case. This state is detected by the detector 6, and leak oil is thus detected. Since this device does not depend on electrical operation, the reliability may be quaranteed for a long period, without any risk of electric leakage or similar problem.

7. 发明专利

JPS5443090A OIL LEAKAGE DETECTING METHOD 失效
公开(公告)号：JPS5443090A
公开(公告)日：1979-04-05
申请号：JP10968377
申请日：1977-09-12
申请人： HITACHI CABLE
发明人： NAGANO HIROO , TOYAMA KANAHISA , ANDOU YORIO , OGURA JIROU , SHIMAZAKI YUKIO
IPC分类号： G01M3/04 , F17D5/04 , G01M3/16
摘要： PURPOSE:To detect oil leakage safely, readily and accurately at an early time by burying a detecting pipe composed of a material which swells and softens when contacted to petroleum in proximity to oil delivery piping.

8. 发明专利

JPS60262103A INSULATOR FOR INCORPORATING OPTICAL FIBER 失效
公开(公告)号：JPS60262103A
公开(公告)日：1985-12-25
申请号：JP11886284
申请日：1984-06-08
申请人： TOKYO ELECTRIC POWER CO , HITACHI CABLE , NGK INSULATORS LTD
发明人： MORI SADAO , ISHIBASHI TAKESHI , KANAMARU KIMIHARU , ANDOU YORIO , SUGIYAMA KOUICHI , MATSUI SOUGO , NAKAJIMA YASUHIRO , TSUBOI YASUYUKI
IPC分类号： G02B6/24 , G02B6/44 , G02B6/46 , H01B17/00 , H01B17/38
摘要： PURPOSE:To apply a monitor system which utilizes optical fibers even for a power transmission line by providing an optical fiber insertion part for optical fiber enclosure from the upper end to the lower end of a main insulator body nearby its surface part. CONSTITUTION:For example, the long rod type main insulator body 1 equipped with a spriral shade 2 is provided with the optical fiber insertion part 4 where an optical fiber 3 is enclosed from the upper end to the lower end near the surface layer part of the shade 2. In this case, the optical fiber 3 may be enclosed by forming a through-hole at the tip part of the shade of the main insulator body 1 and inserting the optical fiber 3 into it, or forming a recessed groove at the tip part of the shade 2, fitting the optical fiber 3 therein, and then sealing the surface with an insulating material. This is suspended on a power transmission line from iron steel arms by utilizing upper and lower caps 5 and 6, the lower end of the optical cable 3 is connected to an optical sensor, and the upper end is connected to an overhead earth-wire composed of an optical fiber composite cable.

9. 发明专利

JPS60225072A DIAGNOSIS OF DETERIORATION IN INSULATION FOR POWER CABLE 失效
公开(公告)号：JPS60225072A
公开(公告)日：1985-11-09
申请号：JP8147284
申请日：1984-04-23
申请人： HITACHI CABLE
发明人： SOMA KENICHIROU , SHIBATA MAKOTO , ANDOU YORIO
IPC分类号： G01R31/12 , G01R31/02
摘要： PURPOSE:To elevate the detecting accuracy of deterioration in the insulation of a cable by detecting DC component from current flowing to the neutral point of a grounding transformer to measure the DC component more accurately from the cable in which a water tree is generated. CONSTITUTION:Currents I1 and I2 refer to earth wire currents from a CV cable while current I3 to that flowing through the earth wire of a groundin transformer 1. On the other hand, as the current I3 flowing through the earth wire of the grounding transformer 1 equals I1+I2 as stray current I4-I7 flow through a closed circuit. Therefore, DC component is detected from the current I3 to find the presence, size and direction of generation concerning water tree in a cable insulator and thus the propriety of continuous use of the cable can be determined.

10. 发明专利

JPS60214273A Detecting method of lightning stroke 失效
标题翻译：雷击探测方法
公开(公告)号：JPS60214273A
公开(公告)日：1985-10-26
申请号：JP7253584
申请日：1984-04-10
申请人： Hitachi Cable Ltd
发明人： KANAMARU KIMIHARU , SUGIYAMA KOUICHI , ANDOU YORIO
IPC分类号： G01R31/00 , G01W1/16
摘要： PURPOSE: To simplify the structure of the device and to detect a lightning stroke accurately by spotting a lightning stroke point by utilizing the difference in arrival time between a lightning current which flows through an overhead earth- wire provided successively to a power transmission line and a lightning sound which propagates in space.
CONSTITUTION: When a thunderbolt strikes the power transmission line adjoining to a steel tower 3, the lightning current flows through the optical fiber composite overhead earth-wire. This lightning current is detected by a current transformer 4 and an E/O lightning conversion part 5 is operated directly to leads the current to an O/E conversion part 7 through an optical fiber 61. This lightning current information is passed through an amplifier 81 to actuates a monostable multivibrator 82 and is held by a sample holding circuit 84 at the same time to generate a lightning generation signal. Then, an integrator 83 integrates the output of the monostable multivibrator 82 until a lightning noise is inputted through a microphone 9 and the amplifier 81 and the output converted to distance by an A/D converter 85 is transmitted to a remote place by a transmitter 10 through an optical fiber in the overhead earth-wire 1.
COPYRIGHT: (C)1985,JPO&Japio
摘要翻译：目的：为了简化设备的结构，并通过利用流经连接到输电线路的架空地线之间的雷电电流与发电线路之间的到达时间差，通过发现雷击点来准确地检测雷击行为闪电在太空中传播。构成：当雷电撞击与钢塔3相邻的输电线时，雷电流通过光纤复合架空地线。该雷电电流由电流互感器4检测，并且E / O雷电转换部分5被直接操作以通过光纤61将电流引导到O / E转换部分7.该雷电电流信息通过放大器81 以驱动单稳态多谐振荡器82并由样本保持电路84同时保持以产生闪电发生信号。然后，积分器83对单稳态多谐振荡器82的输出进行积分，直到通过麦克风9和放大器81输入闪电噪声，并且由A / D转换器85转换为距离的输出由发射机10发送到远程位置通过架空地线1中的光纤。

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