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1. 发明专利

JPS618910A Variable reactor 失效
标题翻译：可变反应堆
公开(公告)号：JPS618910A
公开(公告)日：1986-01-16
申请号：JP13061884
申请日：1984-06-25
申请人： Hitachi Cable Ltd
发明人： ENDOU TAKESHI , SUGIYAMA KOUICHI
IPC分类号： H01F21/06 , H01F3/06 , H01F21/08 , H01F29/10
CPC分类号： H01F29/10 , H01F3/06 , H01F21/08
摘要： PURPOSE:To make the gap interval between both end surfaces variable due to the elasticity of an iron core by bending the flexible iron core bundled with plural elementary wires and equipped with a coil wound around the iron core to nearly a ring shape. CONSTITUTION:A variable reactor 20 has a nearly ring shape iron core 21 which has a gap 24 and a coil 22 is wound around part of the iron core 21. The iron core 21 is made of bundled plural thin elementary wires 23 and is bent to become nearly a ring shape and to have a gap 24 between both the end surfaces 25, 25 which face each other. Each elementary wire 23 is made of a flexible ferromagnetic material the surface of which is electrically insulated. Consequently, the iron core 21 itself is given elasticity. The interval l' of the gap 24 can be varied by moving both the end surfaces 25, 25 or either one end surface 25. This varies the magnetic reluctance in a magnetic path and the reactance of the coil 22 is adjusted.
摘要翻译：目的：为了使两端面之间的间隙由于铁芯的弹性而变化，通过弯曲捆绑有多根基本线的柔性铁芯并且将缠绕在铁芯周围的线圈弯曲成几乎环形。构成：可变电抗器20具有近似环形的铁芯21，其具有间隙24，线圈22缠绕在铁芯21的一部分上。铁芯21由多个细薄基体线23制成并弯曲成变得几乎是环形，并且在两个彼此面对的端面25,25之间具有间隙24。每个基本金属线23由其表面电绝缘的柔性铁磁材料制成。因此，铁芯21本身具有弹性。间隙24的间隔l'可以通过移动两个端面25,25或任一个端面25来改变。这改变磁路中的磁阻，并且调节线圈22的电抗。

2. 发明专利

JPS5920825A Method for measuring temperature of cable conductor 失效
标题翻译：测量电缆导体温度的方法
公开(公告)号：JPS5920825A
公开(公告)日：1984-02-02
申请号：JP13181782
申请日：1982-07-28
申请人： Hitachi Cable Ltd
发明人： ENDOU TAKESHI , SHIRAI HISAYA
IPC分类号： G01K7/36
CPC分类号： G01K7/36
摘要： PURPOSE:To decrease errors in measuring the temperature of a cable conductor and to measure the temperature of the cable conductor without contact, by utilizing metallic electric wire, whose change in effective resistance due to temperature change is small and DC resistivity is small, in a solenoid coil. CONSTITUTION:A cable conductor 5, whose temperature is to be measured, is inserted in a solenoid coil 3. The changes in inductance L and effective resistance R of the solenoid coil 3 caused by the temperature of the cable conductor 5 are measured by a measuring device 4. The temperature of the cable conductor 5 is measured based on the amounts of the changes in the L and the R. In this case, the solenoid coil 3 is formed by the metallic electric wire made of a metallic material, whose temperature coefficient of resistance is 1X10 / deg.C or less and the product of the inherent resistance and the temperature coefficient is 5X 10 OMEGA.cm/ deg.C or less. The relationship between the L and R of the solenoid coil 3 and the temperature T of the cable conductor 5, whose temperature is to be measured, is obtained in advance. Thus the temperature of the cable conductor can be measured without contact.
摘要翻译：目的：为了减少测量电缆导体温度的误差，并且通过使用金属电线来测量电缆导体的温度，其中温度变化导致的有效电阻变化小，直流电阻率小，电磁线圈。构成：要测量其温度的电缆导体5插入螺线管线圈3.由电缆导体5的温度引起的电磁线圈3的电感L和有效电阻R的变化通过测量电缆导体5的温度基于L和R的变化量来测量。在这种情况下，电磁线圈3由金属材料制成的金属电线形成，其温度系数的电阻为1×10 -3 /℃以下，固有电阻和温度系数的乘积为5×10 -9欧姆·厘米/℃以下。预先求出螺线管线圈3的L，R与要测量其温度的电缆导体5的温度T之间的关系。因此，可以不接触地测量电缆导体的温度。

3. 发明专利

JPS59105540A Measuring method for position of partial discharge in power cable system 失效
标题翻译：电力电缆系统部分放电位置测量方法
公开(公告)号：JPS59105540A
公开(公告)日：1984-06-18
申请号：JP21521582
申请日：1982-12-08
申请人： Hitachi Cable Ltd
发明人： WATANABE YASUAKI , IKEDA TADAYOSHI , NAGANO HIROO , ANDOU YORIO , ENDOU TAKESHI
IPC分类号： G01M99/00 , G01M3/22 , G01R31/12
CPC分类号： G01M3/221
摘要： PURPOSE:To detect a region of partial discharge without fail by a method wherein a gas having the same quality as the one in a power cable is sent into the cable in which air or a gas of N2, SF6 or the like is filled up in a sheath, from one end thereof, and is collected from the other end thereof, and a time required untill the detection of a gas produced due to the partial discharge is measured. CONSTITUTION:A gas having the same quality as the one in a power cable 11 is sent from a cylinder 13 containing the gas into a power cable 11 having air or a gas of N2, SF2 or the like filled up in a gap 9 thereof, and is collected at the other end thereof. By using a continuous gas analyzer 14, a time required from the start of sending the gas to the detection of a cracked gas produced due to partial discharge in the power cable is measured. When said partial discharge occurs inside a crosslinked-polyethylene insulating layer 3 or on an interface between internal and external semi-conductive layers 2 and 4, CO and CO2 are produced by the reaction of H2 and hydrocarbon such as C2H4, C2H6, etc. produced by the decomposition of polyethylene with residual O2 and water in a cable core 7. Accordingly, a region of discharge is detected without fail by analyzing H2, hydrocarbon, CO and CO2.
摘要翻译：目的：通过以下方法检测局部放电区域：其中将具有与电力电缆中的质量相同的质量的气体送入其中填充有N 2，SF 6等的空气或气体的电缆护套，从其一端收集，并从其另一端收集，并且测量由于局部放电产生的气体的检测所需的时间。构成：将具有与电力电缆11相同质量的气体从包含气体的气缸13送入具有填充在其间隙9中的空气或N 2，SF 2等气体的电力电缆11中，并在其另一端收集。通过使用连续气体分析器14，测量从电力线的局部放电开始发送气体到产生的裂解气体的检测所需的时间。当在交联聚乙烯绝缘层3内部或内部和外部半导体层2和4之间的界面上发生局部放电时，通过H 2和诸如C 2 H 4，C 2 H 6等的烃的反应产生CO和CO 2 通过在电缆芯7中分解具有残留的O 2和水的聚乙烯。因此，通过分析H 2，烃，CO和CO 2来检测放电区域。

4. 发明专利

JPS59105539A Detecting method for deterioration of power cable 失效
标题翻译：电力电缆检测方法
公开(公告)号：JPS59105539A
公开(公告)日：1984-06-18
申请号：JP21521482
申请日：1982-12-08
申请人： Hitachi Cable Ltd
发明人： WATANABE YASUAKI , IKEDA TADAYOSHI , NAGANO HIROO , ENDOU TAKESHI
IPC分类号： G01M99/00 , G01M3/22 , G01R31/12
CPC分类号： G01M3/221
摘要： PURPOSE:To enable the sure detection of the deterioration of a cable insulating layer, by connecting a gas supplier to one end of a laid power cable while connecting a gas collector and a gas analyzer to the other end thereof, so as to collect and analyze gases in the cable. CONSTITUTION:An N2 gas supplier 12 is connected to one end of a crosslinked- polyethylene-insulated power cable 11 filled up with air or a gas of N2, SF2 or the like, while a gas collector 13 and a gas analyzer 14 are connected to the other end thereof. An N2 gas is sent from the supplier 12 to drive out gases in a gap 9 inside the cable so as to analyze them. When partial discharge occurs in a crosslinked-polyethylene insulating layer 3 and on an interface between an internal semi-conductive layer 2 and an external semiconductive layer 4, gases of CO, CO2, etc. are produced by the reaction of H2 with hydrocarbon such as CH4 or C2H6 or with residual oxygen and water in a cable core 7. By analyzing these gases, the deterioration of the cable insulating layer 3 is detected without fail.
摘要翻译：目的：为了确保检测电缆绝缘层的劣化，通过将气体供应器连接到电力电缆的一端，同时将气体收集器和气体分析仪连接到另一端，以便收集和分析电缆中的气体。构成：将N2气体供给器12连接到填充有空气或N2，SF2等的气体的交联聚乙烯绝缘电力电缆11的一端，同时将集气器13和气体分析器14连接到其另一端。从供应商12发送N 2气体以驱出电缆内的间隙9中的气体，以便对其进行分析。当交联聚乙烯绝缘层3和内部半导体层2与外部半导电层4之间的界面处发生局部放电时，通过使H 2与烃反应生成CO，CO 2等的气体，例如 CH4或C2H6，或电缆芯7中残留的氧和水。通过分析这些气体，电缆绝缘层3的劣化被检测到。

5. 发明专利

JPS59104567A Cable electro-mechanical test terminal 失效
标题翻译：电缆电子机械测试终端
公开(公告)号：JPS59104567A
公开(公告)日：1984-06-16
申请号：JP21413682
申请日：1982-12-07
申请人： Hitachi Cable Ltd
发明人： ENDOU TAKESHI , TANNO SHIROU
IPC分类号： G01R31/12 , G01R31/16
摘要： PURPOSE: To minimize the dimension of an entire testing device and reduce cost by incorporating a high voltage standard capacitor in the gas insulating part of a cable electro-mechanical test terminal.
CONSTITUTION: A cable test terminal is constituted of a gas terminal part, which is isolated from an air electro-mechanical terminal part 1 and an oiltight bushing 4 using, for example, gaseous SF
6 , and a terminal part of a sample cable 14 isolated by an oiltight bushing 13. A conductor 3 in the gas terminal part is provided with a high voltage electrode 8 for the standard capacitor, and a measuring electrode 9 is provided near the inside of a metallic pressure vessel 16 facing the electrode 8. Guard electrodes 10 are arranged on and under the measuring electrode 9, and they are so constituted that lines of electrostatic force are made uniform. A shielding electrode 11 is arranged between the measuring electrode 9 and the vessel 16 and is connected to the guard electrodes 10. Therefore, coupling between the measuring electrode 9 and the earth potential of the vessel 16 is prevented. Thus, the device is made small-sized and light-weight because the standard capacitor is formed in the gas terminal part.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：通过在电缆机电测试端子的气体绝缘部分中加入高压标准电容器来最小化整个测试设备的尺寸并降低成本。构成：电缆测试端子由气体端子部分构成，气体端子部分使用例如气态SF6与空气机电端子部分1和油密套管4隔离，并且样品电缆14的端子部分由油密封衬套13.气体端子部分中的导体3设置有用于标准电容器的高压电极8，并且测量电极9设置在面对电极8的金属压力容器16的内部附近。保护电极10 布置在测量电极9上和下方，并且它们被构造成使静电力线成为均匀。屏蔽电极11设置在测量电极9和容器16之间并与保护电极10连接。因此，可以防止测量电极9与容器16的接地电位之间的耦合。因此，由于标准电容器形成在气体端子部分中，所以该装置被制成小型化和轻量化。

6. 发明专利

JPS59212784A Schering bridge circuit 失效
标题翻译：调度电路
公开(公告)号：JPS59212784A
公开(公告)日：1984-12-01
申请号：JP8822883
申请日：1983-05-19
申请人： Hitachi Cable Ltd
发明人： ENDOU TAKESHI , MINAFUJI JIYUNICHI
IPC分类号： G01R27/26
摘要： PURPOSE: To minimize the residual inductance of a Schering bridge circuit and improve the measuring accuracy, by using a shunt which has a large resistance value and is small in size as the shunt of the circuit and installing the shunt in the main body of the Schering bridge circuit together with an airtight case.
CONSTITUTION: A shunt 13 which has a large resistance value and is small in size is prepared by putting the shunt 13 in an airtight case 16 equipped with a refrigerant inlet 14 and refrigerant outlet 15 and forcedly cooling the shunt 13 with an inter refrigerant, such as insulating liquid of insulating oil, etc., or inert gas of nitrogen gas, freon gas, etc. Then the shunt 13 is installed into the main body of a Schering bridge 9 together with the airtight case 16. When the Schering bridge 9 is constituted in such a manner, its residual inductance can be minimized and the tan δ error can also be reduced. Therefore, the mesuring accuracy can be improved.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：为了使Schering桥式电路的剩余电感最小化并提高测量精度，通过使用具有较大电阻值并且体积小的分流器作为电路分流器，并将分流器安装在Schering主体中桥接电路与气密盒。构成：通过将分路器13配置在配备有制冷剂入口14和制冷剂出口15的气密壳体16中并通过内部制冷剂强制地冷却分流器13来制备具有大电阻值并且尺寸小的分流器13，作为绝缘油等的绝缘液体，氮气，氟利昂气体等的惰性气体。然后，分流器13与气密壳体16一起安装在先灵桥9的主体中。当先灵桥9是以这种方式构成，其剩余电感可以最小化，并且还可以减小tanδ误差。因此，能够提高测定精度。

7. 发明专利

JPS59105538A Estimating method for region of partial discharge in crosslinked-polyethylene insulated power cable with metal sheath 失效
标题翻译：交联聚乙烯绝缘电力电缆部分放电区域的估算方法
公开(公告)号：JPS59105538A
公开(公告)日：1984-06-18
申请号：JP21521382
申请日：1982-12-08
申请人： Hitachi Cable Ltd
发明人： WATANABE YASUAKI , IKEDA TADAYOSHI , NAGANO HIROO , ANDOU YORIO , ENDOU TAKESHI
IPC分类号： G01M99/00 , G01M3/22 , G01R31/12
CPC分类号： G01M3/221
摘要： PURPOSE:To estimate a region of discharge accurately and thereby to prevent the occurrence of a hazardous trouble, by analyzing the composition of cracked gases produced due to the partial discharge to determine whether the partial discharge occurs in a gap between a metal sheath and a cable core of a power cable or inside the cable core. CONSTITUTION:Air, an N2 gas, an SF6 gas or the like being filled up in a gap 9 between the sheath 8 and the cable core 7 of a power cable having a crosslinked-polyethylene insulating layer 3 with the sheath 8 formed of a metal such as A, a cracked gas produced due to partial discharge occurring in the aforesaid condition is taken out from one end of the cable, and is analyzed by a gas chromatography. While NOx, SO2, F2, SOF2, HF, etc. are detected when N2, O2, SF6 and H2O are decomposed, gases of CO, CO2, CH4, etc. are detected when the discharge occurs in the insulating layer 3 in the cable core 7, for instance, in a region shown by a dotted line 12 in the figure, and thus the region of the partial discharge can be estimated accurately.
摘要翻译：目的：通过分析由于局部放电产生的裂纹气体的组成，确定是否在金属护套和电缆之间的间隙中发生局部放电，以准确估计放电区域，从而防止发生危险故障电源线的内芯或电缆芯内。构成：空气，N 2气体，SF 6气体等填充在具有交联聚乙烯绝缘层3的电缆的护套8和电缆芯7之间的间隙9中，护套8由金属形成例如A，从电缆的一端取出在上述条件下由于部分放电而产生的裂化气体，并通过气相色谱分析。当N2，O2，SF6和H2O分解时，当NOx，SO2，F2，SOF2，HF等被检测时，当电缆中的绝缘层3中发生放电时，检测到CO，CO 2，CH 4等气体芯7例如在图中由虚线12所示的区域中，因此可以准确地估计局部放电的区域。

8. 发明专利

JPS59105537A Detecting method for partial discharge in crosslinked- polyethylene insulated power cable system 失效
标题翻译：交联聚乙烯绝缘电力电缆系统部分放电检测方法
公开(公告)号：JPS59105537A
公开(公告)日：1984-06-18
申请号：JP21521282
申请日：1982-12-08
申请人： Hitachi Cable Ltd , Ube Ind Ltd
发明人： WATANABE YASUAKI , IKEDA TADAYOSHI , NAGANO HIROO , ANDOU YORIO , ENDOU TAKESHI , KINUGASA JIYUN , TAKASHIMA HIDEAKI , MIKAMI AKIHIRO
IPC分类号： G01M99/00 , G01M3/22 , G01R31/12
CPC分类号： G01M3/221
摘要： PURPOSE:To detect the partial discharge of an insulating layer without fail before the occurrence of the breakdown of insulation property and thereby to prevent the outbreak of a large hazard, by detecting H2, CO and CO2 produced at the time of the partial discharge from a crosslinked-polyethylene insulated power cable system in which air or gas of SF6 or the like is filled up in a sheath. CONSTITUTION:In a power cable prepared by providing a cable conductor 1 with an internal shielding layer 2, a crosslinked-polyethylene insulating layer 3, an electrostatic shielding body 4 formed by winding a semi-conductive tape with butt gaps 4' provided, a tin-plated copper wire 5 (grounded), a cotton-tape winding layer 6 and a metal sheath 7 in this sequence, air or gas of N2, SF6 or the like is filled up in a gap 8 inside the sheath 7. The gas in this gap 8 is taken out and analyzed by the gas chromatography using an activator column. When one or more of H2, CO and CO2 in the gas is detected, it is determined that the layer 3 is decomposed due to partial discharge and thereby said three gases are produced inside a cable core. The partial discharge can be detected with high sensitivity in this way.
摘要翻译：目的：在发生绝缘性破坏之前，先检查绝缘层的局部放电，从而防止爆发危险性大，通过检测局部放电时产生的H2，CO和CO2 交联聚乙烯绝缘电力电缆系统，其中SF6等的空气或气体填充在护套中。构成：在通过为电缆导体1提供内部屏蔽层2制备的电力电缆中，交联聚乙烯绝缘层3，静电屏蔽体4，该静电屏蔽体4通过卷绕带有对接间隙4'的半导体带形成，电镀铜线5（接地），棉带缠绕层6和金属护套7，将N 2，SF 6等的空气或气体填充在护套7内部的间隙8中。通过使用活化剂柱的气相色谱法取出该间隙8并进行分析。当检测到气体中的H 2，CO和CO 2中的一种或多种时，确定层3由于局部放电而分解，从而在电缆芯内产生三种气体。以这种方式可以高灵敏度地检测局部放电。

9. 发明专利

JPS5750662A Method for measuring coil loss of electric power 失效
标题翻译：测量电力线圈损耗的方法
公开(公告)号：JPS5750662A
公开(公告)日：1982-03-25
申请号：JP12691780
申请日：1980-09-12
申请人： Hitachi Cable Ltd
发明人： ENDOU TAKESHI
IPC分类号： G01R21/06 , G01R21/00
CPC分类号： G01R21/00
摘要： PURPOSE:To measure the loss of electric power of a high frequency induction heating coil with high accuracy by utilizing the product of the coil electric current flowing in the induction heating coil and the voltage generated in a measuring coil tightly coupled to the induction heating coil. CONSTITUTION:A measuring coil 8 wound with insulated electric wires tightly coupled to a high frequency induction coil 1 heating a metal 2 to be heated is provided and the effective resistance component voltage of the coil 1 induced in this coil 8 is taken out through an insulation transformer 9. It is rectified by a full-wave rectifier 10, and is smoothed by a smoothing capacitor 11, the electric power whereof is measured with a DC voltmeter 12 or is applied to the voltage coil of a wattmeter 7. The coil current flowing in the coil 1 is measured with an ammeter 6 and the voltage generated in the coil 8 is measured with a voltmeter 12. From the product of both measured values, the loss of electric power in the coil 1 is determined. It is also possible to read directly the loss of the electric power with the wattmeter 7.
摘要翻译：目的：通过利用在感应加热线圈中流动的线圈电流和紧密耦合到感应加热线圈的测量线圈中产生的电压，高精度地测量高频感应加热线圈的电力损失。构成：设置用与被加热金属2加热的高频感应线圈1紧密连接的绝缘电线的测量线圈8，并且在该线圈8中感应的线圈1的有效电阻分量电压通过绝缘体变压器9.由全波整流器10整流，并由平滑电容器11平滑，其电力用直流电压表12测量或施加到瓦特计7的电压线圈。线圈电流流动用电流表6测量线圈1中的电压，并用电压表12测量线圈8中产生的电压。根据两个测量值的乘积确定线圈1中的功率损失。也可以直接用瓦特计7读取电力的损失。

10. 发明专利

JPS618908A Iron core for high frequency 失效
标题翻译：高频铁芯
公开(公告)号：JPS618908A
公开(公告)日：1986-01-16
申请号：JP13061984
申请日：1984-06-25
申请人： Hitachi Cable Ltd
发明人： ENDOU TAKESHI , SUGIYAMA KOUICHI , KUMA SHIYOUJI
IPC分类号： H01F17/06 , H01F3/06 , H01F17/04 , H01F27/24
CPC分类号： H01F3/06 , H01F17/04 , H01F2027/348
摘要： PURPOSE:To obtain a high frequency iron core which has highly saturated magnetic flux density and less eddy current loss by forming a long and narrow flexible iron core bundling plural elementary wires made of a ferromagnetic material the surface of which is electrically insulating in a circular or square shape which has the same cross section area to the corresponding laminated thin plate iron core. CONSTITUTION:An iron core 10 for high frequency is made of two same shape iron cores 1 placed face to face and is made nearly a ring shape connecting both the end surfaces of the iron cores. That is, the two iron cores 1 are made of bundled plural elementary wires 2 of a ferromagnetic material covered with an electrically insulating material and bended to the direction of the axis in nearly a U-shape. The elementary wires 2 of the two iron cores 1 are also bundled to form a square in their cross section and one iron core 1 is wound with a winding 4 supported by a bobbin 3 at both the ends. By using the bundled plural ferformagnetic material elementary wires, an iron core for high frequency which has high relative permeability or highly saturated magnetic flux density can be made and the selective range of the material is also wide due to use of a wire material.
摘要翻译：目的：通过形成由铁磁材料制成的多个基本电线，形成长而窄的柔性铁芯，以获得具有高饱和磁通密度和较小涡流损耗的高频铁芯，其表面电气绝缘在圆形或与相应的层叠薄板铁芯具有相同的横截面积的正方形。构成：用于高频的铁芯10由两个相同形状的铁芯1制成，并且形成为连接两个铁芯的两个端面的环形。也就是说，两个铁心1由被电绝缘材料覆盖的铁磁材料的捆扎的多个基本配线2制成，并且沿轴线的方向弯曲成大致U字形。两个铁芯1的基本线2也被捆扎以在其横截面上形成正方形，并且一个铁芯1缠绕有由两个端部由线轴3支撑的绕组4。通过使用捆扎的多个铁磁材料元素线，可以制造具有高相对磁导率或高饱和磁通密度的高频铁芯，并且由于使用线材而使材料的选择范围也变宽。

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