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1. 发明专利

JP2002202342A METHOD FOR DIAGNOSING INSULATION OF CV CABLE 失效
公开(公告)号：JP2002202342A
公开(公告)日：2002-07-19
申请号：JP2000402650
申请日：2000-12-28
申请人： FUJIKURA LTD , CHUBU ELECTRIC POWER
发明人： KON HIROYUKI , WATANABE KAZUO , UCHIDA KATSUMI , MIYAJIMA KAZUHISA
IPC分类号： G01R31/12
摘要： PROBLEM TO BE SOLVED: To provide a method which can accurately evaluate the degree of deterioration regardless of cable length and can also accurately evaluate the degree of deterioration between cables having different voltage classes when the water tree deterioration of a CV cable is diagnosed by using a residual electric charge measuring method. SOLUTION: By the residual electric charge measuring method, AC voltage electrification based upon a specific electrification pattern is repeated in steps and the degree of the water tree deterioration is diagnosed by using as an index the ratio of the maximum AC electrification electric field intensity when the residual electric charges are measured and the insulator thickness of the tested cable.

2. 发明专利

JP2002202340A METHOD FOR EVALUATING WATER TREE GENERATION TYPE OF CV CABLE 失效
公开(公告)号：JP2002202340A
公开(公告)日：2002-07-19
申请号：JP2000402637
申请日：2000-12-28
申请人： FUJIKURA LTD , CHUBU ELECTRIC POWER
发明人： KON HIROYUKI , WATANABE KAZUO , UCHIDA KATSUMI , MIYAJIMA KAZUHISA
IPC分类号： G01R31/12
摘要： PROBLEM TO BE SOLVED: To solve the problem that it is difficult to accurately grasp the water tree generation type of the whole cable since when the water tree generation type of a cable insulator is investigated, part of the cable is sampled for the investigation and then the investigation result depends upon the sampling place. SOLUTION: The CV cable after being electrified with a DC voltage is grounded and then electrified with an AC voltage to measure the residual electric charges. By this method, AC voltage electrification based upon a specific electrification pattern is repeated in steps and the water tree generation type of the cable insulator is evaluated by using a distribution of residual electric charge quantities measured in the steps of the AC voltage electrification.

3. 发明专利

JP2005181208A Deterioration diagnostic method and deterioration diagnostic device for cv cable 审中-公开
标题翻译：用于CV电缆的诊断诊断方法和诊断诊断装置
公开(公告)号：JP2005181208A
公开(公告)日：2005-07-07
申请号：JP2003425371
申请日：2003-12-22
申请人： Chubu Electric Power Co Inc , Fujikura Ltd , 中部電力株式会社 , 株式会社フジクラ
发明人： KON HIROYUKI , UCHIDA KATSUMI , MIYAJIMA KAZUHISA
IPC分类号： G01R31/12
摘要： PROBLEM TO BE SOLVED: To provide a deterioration diagnostic method and a deterioration diagnostic device for a CV cable, capable of reducing the influence due to a cable provided for accurately diagnosing deterioration.
SOLUTION: In this deterioration diagnostic method for diagnosing the deterioration in a measuring objective cable, wherein a direct current is impressed on the measuring object cable 1a constituting the first phase of the CV cable and is grounded thereafter, and wherein the charge accumulated by the impression of the direct current is discharged, by impressing thereafter an alternating current to measure the residual charge amount; a difference between the first signal from the first low-pass filter 7a transmitting low-frequency components of the first current flowing in the measuring objective cable 1a by the discharge of the charge; and the second signal from the second low-path filter 7b for transmitting low-frequency components of the second current flowing in an auxiliary measuring cable 1b, constituting the second phase of the CV cable, is calculated by a differential amplifier 8, a calculated signal is processed as a signal, expressing the residual charge amount by a personal computer 10, to diagnose the deterioration of the measuring objective cable 1a.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于CV电缆的劣化诊断方法和恶化诊断装置，其能够减少由于准确地诊断劣化所提供的电缆所产生的影响。解决方案：在用于诊断测量目标电缆的劣化的这种恶化诊断方法中，其中直流电压施加在构成CV电缆的第一相的测量对象电缆1a上，然后接地，并且其中电荷累积通过直流电压的印象，通过再施加交流电来测量剩余电荷量; 来自第一低通滤波器7a的第一信号之间的差异，该第一低通滤波器7a通过放电进行测量对象电缆1a中流动的第一电流的低频分量; 并且来自构成CV电缆的第二相的辅助测量电缆1b中流动的第二电流的低频分量的第二低通滤波器7b的第二信号由差分放大器8计算，计算出的信号作为信号处理，由个人计算机10表示剩余电荷量，以诊断测量对象电缆1a的劣化。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2002202341A METHOD FOR DIAGNOSING INSULATION OF CV CABLE 失效
公开(公告)号：JP2002202341A
公开(公告)日：2002-07-19
申请号：JP2000402647
申请日：2000-12-28
申请人： FUJIKURA LTD , CHUBU ELECTRIC POWER
发明人： KON HIROYUKI , WATANABE KAZUO , UCHIDA KATSUMI , MIYAJIMA KAZUHISA
IPC分类号： G01R31/12
摘要： PROBLEM TO BE SOLVED: To solve the problem that it is difficult to decide whether a cable has slight water tree deterioration uniformly or excessive water tree deterioration, i.e., a long water tree locally since the residual electric charge quantity obtained by a conventional residual electric charge measuring method is the total electric charge quantity from the cable lengthwise direction. SOLUTION: The cable to be tested after being electrified with a DC voltage is grounded and then electrified with an AC voltage and the residual electric charges are measured. By this method, the electrifying voltage value of the DC electrification is varied in order from a low-voltage to a high-voltage side, and the residual electric charge measurement is repeated; and the degree of water tree deterioration of the tested cable is diagnosed from the DC electrifying voltage value when the residual electric charges are measured.

5. 发明专利

JP2009225498A Protective case for power line 有权
标题翻译：电源线保护箱
公开(公告)号：JP2009225498A
公开(公告)日：2009-10-01
申请号：JP2008064312
申请日：2008-03-13
申请人： Chubu Electric Power Co Inc , 中部電力株式会社
发明人： MIYAJIMA KAZUHISA , MORISHITA YUKINOBU
IPC分类号： H02G15/113
摘要： PROBLEM TO BE SOLVED: To provide a protective case for power lines, which reduces cost for preventing the spread of fire to other circuits due to fault, etc. at the joint of a power line, and also enables a user to easily perform the maintenance inspection and a repair work of the joint of the power line.
SOLUTION: The joints 31a-31c and 32a-32c of all phases of power lines 31A-31C and 32A-32C in power circuits 31 and 32 using OF cables are accommodated in a protective case 33 so that sealed space are formed around it. The wall part 33A of the protective case 33 is constituted by attaching a refractory plate 48 to the outer flank of a case frame. The wall part 33A of the protective case 33 includes a pressure relief part 36 which is opened from a closed state for releasing the pressure when the internal pressure of the case increases.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为电力线提供保护壳，从而降低成本，防止由于电力线的接头处的故障等引起的火灾向其他电路的扩散，并且使用户能够容易地对电力线的接头进行维修检查和维修工作。解决方案：使用OF电缆的电源线31,32中的电力线31A-31C和32A-32C的所有相的接头31a-31c和32a-32c容纳在保护壳体33中，从而围绕形成密封空间它。保护壳体33的壁部33A通过将耐火板48附接到壳体框架的外侧面而构成。保护壳体33的壁部33A包括压力释放部36，该压力释放部36从关闭状态开放，以在壳体的内部压力增加时释放压力。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JP2003032865A Power cable cooling apparatus 有权
标题翻译：电力电缆冷却装置
公开(公告)号：JP2003032865A
公开(公告)日：2003-01-31
申请号：JP2001213207
申请日：2001-07-13
申请人： Chubu Electric Power Co Inc , Nichihoku:Kk , Nichiyu Giken Kogyo Co Ltd , Nitto Electric Works Ltd , 中部電力株式会社 , 日東工業株式会社 , 日油技研工業株式会社 , 株式会社ニチホク
发明人： MIYAJIMA KAZUHISA , UCHIDA KATSUMI , KANAI KOJI , WATANABE MINORU , MORITA HIROYUKI
IPC分类号： H02G1/06 , H02G9/00
摘要： PROBLEM TO BE SOLVED: To provide a power cable cooling apparatus which does not need large scale cooling equipment and can be applied to the partial cooling of a power cable easily.
SOLUTION: Peltier units 2 having Peltier devices are provided in a cable housing chamber 1 as cooling sources for cooling the inside of the cable housing chamber 1, in which power cables 4 are housed and powers supplied to the Peltier devices are controlled so as to keep prescribed power transmission capacities of the power cables 4. With such a constitution, large scale cooling equipment is not necessary and only the parts of the power cables which are to be cooled can be cooled easily.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种不需要大型冷却设备的电力电缆冷却装置，并且可以容易地应用于电力电缆的部分冷却。解决方案：具有珀耳帖装置的珀尔帖单元2设置在电缆容纳室1中，作为用于冷却电缆容纳室1的内部的冷却源，其中容纳电力电缆4，并且控制供应给珀尔帖装置的功率，以便保持通过这样的结构，不需要大型冷却设备，只能容易地冷却要被冷却的电力电缆的部件。

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