专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH1064336A DIELECTRIC LIQUID TREATMENT DEVICE 失效
公开(公告)号：JPH1064336A
公开(公告)日：1998-03-06
申请号：JP22393896
申请日：1996-08-26
申请人： MITSUBISHI ELECTRIC CORP
发明人： TSUCHIE MOTOO , MAKINO YOSHIHIRO , AMIMOTO TAKESHI , KAI YOSHITERU
IPC分类号： H01B3/20
摘要： PROBLEM TO BE SOLVED: To provide a dielectric liquid treatment device capable of removing copper in a dielectric liquid by using in the internal inspection or component replacement of an electrical machinery and apparatus. SOLUTION: A dielectric liquid treatment device has an agitating bath 6 for agitating an insulating oil and benzotriazole, a first pump 7 for feeding the insulating oil from an electrical machinery and apparatus main body 1 to the agitating vessel 6, a heater 8 for heating the insulating oil, a second pump 9 for circulating the insulating oil in the agitating vessel 6, a first filter 10 for removing a reaction product of dissolved copper in the insulating oil with benzotriazole, and a replenishing tank 11 for replenishing the insulating oil.

2. 发明专利

JPH0422845A APPARATUS FOR ANALYZING ALDEHYDES IN INSULATING OIL 失效
公开(公告)号：JPH0422845A
公开(公告)日：1992-01-27
申请号：JP12767190
申请日：1990-05-16
申请人： MITSUBISHI ELECTRIC CORP
发明人： TSUCHIE MOTOO
IPC分类号： G01N1/22 , G01N21/31
摘要： PURPOSE:To quantitatively analyze aldehydes with good accuracy by measuring the absorption luminous intensity of an aq. soln. suspended with the silver generated by the reaction of the aldehydes and an aq. silver nitrate ammonium soln. CONSTITUTION:An insulating oil 2 is put as a sample into a vessel 1 and an inert gas is introduced by a bubbling mechanism 10 into the insulating oil 2. The aq. silver nitrate ammonium soln. 4 is put into a glass vessel 3 and the gas extracted by bubbling from the insulating oil 2 and the inert gas are introduced by a bubbling mechanism 16 into the aq. soln. 4. The absorption luminous intensity of the aq. soln. 4 is measured by a light source 5 and a detector 6 shut off from stray light by a dark box 7 as a measuring system. The aq. silver nitrate ammonium soln. 4 of a low concn. is the absorption liquid of the aldehydes if the measurement is made in such a manner. The reduced silver is put into a stably suspended state under the stirring by the bubbling if the inert gas absorbing the aldehyde quantity is determined from the absorption luminous intensity of the absorption liquid.

3. 发明专利

JPH03225704A ELECTRIC INSULATING OIL 失效
公开(公告)号：JPH03225704A
公开(公告)日：1991-10-04
申请号：JP1940690
申请日：1990-01-29
申请人： KANSAI TEC KK , MITSUBISHI ELECTRIC CORP
发明人： KANSAKU MOTOHARU , TSUCHIYAMA AKIRA , MIYAMOTO AKIO , TSUCHIE MOTOO
IPC分类号： H01B3/20 , C10M167/00
摘要： PURPOSE:To improve a dielectric breakdown voltage of insulating oil without lowering characteristics required for the insulating oil by adding a specific additive to the insulating oil and specifying the additive content ratio of the electric insulating oil according to the kind of additives. CONSTITUTION:To an insulating oil is added at least one kind of an additive selected from a group of additives A to G as shown in the following. The additive A is represented by a formula I, and 0.01 to 10wt.% is added to the oil. The additive B is made of repressed oil, and 0.01 to 10wt.% is added. The additive C is made of the ester of hydroxy-fatty acid prepared by esterifying either of or both of a hydroxyl radical and an acid radical, and 0.01 to 1wt.% is added. The additive D is represented by a formula II, has a boiling point of 120 to 300 degrees Centigrade and 0.01 to 1wt.% is added. The additive E is made of DL-D-mentha-1.8-dien and 0.01 to 1wt.% is added. The additive F is made of diphenylcarbazide and 0.1 to 0.8wt.% is added. The additive G is made of D-hydroxyphenylacetamide and 0.01 to 0.1wt.% is added. In the formulas, (m) represents an integer of not more than 30 while (n) represents an integer.

4. 发明专利

JPS63116309A OIL-FILLED ELECTRIC APPLIANCE 失效
公开(公告)号：JPS63116309A
公开(公告)日：1988-05-20
申请号：JP26314186
申请日：1986-11-05
申请人： MITSUBISHI ELECTRIC CORP
发明人： MIYAMOTO AKIO , TSUCHIE MOTOO
IPC分类号： C10M131/10 , C10N30/10 , C10N30/14 , C10N40/16 , H01B3/20

5. 发明专利

JPS5521882A STATIC ELECTRICITY GENERATOR 失效
公开(公告)号：JPS5521882A
公开(公告)日：1980-02-16
申请号：JP9566378
申请日：1978-08-04
申请人： MITSUBISHI ELECTRIC CORP
发明人： MIYAMOTO AKIO , TSUCHIE MOTOO , KISHI AKIO
IPC分类号： G01N27/60 , G01R29/12 , G01R29/24

6. 发明专利

JP2008064706A Electrostatic charge potential measuring instrument 有权
标题翻译：静电充电电位测量仪器
公开(公告)号：JP2008064706A
公开(公告)日：2008-03-21
申请号：JP2006245413
申请日：2006-09-11
申请人： Mitsubishi Electric Corp , Tokyo Electric Power Co Inc:The , 三菱電機株式会社 , 東京電力株式会社
发明人： TSUCHIE MOTOO , AMIMOTO TAKESHI , KOBAYASHI TAKAYUKI , YAJIMA KOJI
IPC分类号： G01R29/12
摘要： PROBLEM TO BE SOLVED: To solve a problem wherein charge relaxation of an important evaluation element in actual electric equipment with oil is not taken into consideration, in a conventional electrostatic charge potential measuring instrument used for measuring a charged degree as an object.
SOLUTION: This electrostatic charge potential measuring instrument uses an insulating oil equivalent to an insulating oil to be used or used for the electric equipment with the oil of an evaluation object, as sample oil, an electrostatic charge generating part 4 is constituted of an insulator 40 formed of an insulating material equivalent to an insulating material to be used or used contacting with the insulating oil in the electric equipment with the oil, and provided with a duct for passing the sample oil in its inside, the first electrode 411 with at least one portion buried in the insulator and contacting with the insulator, and the second electrode 412 contacting with the insulator and grounded, and the potential of the electrostatic charge generating part 4 is measured via the first electrode 411.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了解决在用于测量作为对象的充电度的常规静电电荷电位测量仪中不考虑具有油的实际电气设备中的重要评估元件的充电弛豫的问题。
解决方案：该静电电荷电位测量仪器使用与绝缘油相当的绝缘油作为样品油使用或用于具有评价对象的油的电气设备，静电电荷产生部分4由由绝缘材料形成的绝缘体40，该绝缘材料与要与该电气设备中的绝缘油接触的待使用或使用的绝缘材料相等，并且具有用于使样品油在其内部通过的管道，第一电极411与至少一个部分埋在绝缘体中并与绝缘体接触，第二电极412与绝缘体接触并接地，并且经由第一电极411测量静电电荷产生部分4的电位。 C）2008，JPO＆INPIT

7. 发明专利

JP2000002734A STATIC MEASURING DEVICE FOR LIQUID 失效
公开(公告)号：JP2000002734A
公开(公告)日：2000-01-07
申请号：JP16850198
申请日：1998-06-16
申请人： MITSUBISHI ELECTRIC CORP
发明人： TSUCHIE MOTOO , TOHATA KAZUYA , AMIMOTO TAKESHI
IPC分类号： G01R31/12 , G01R29/24
摘要： PROBLEM TO BE SOLVED: To provide a static measuring device for liquid capable of equivalent measuring for the deterioration of a liquid-containing electric apparatus. SOLUTION: In such a static measuring device that a static evaluation of a liquid-containing electric apparatus, equipped with a static-electricity generating part for generating static electricity in a fluid and in which fluidized insulating liquid is enclosed in a vessel, is obtained by using a filter 4, comprising the same material as a solid insulator used in the liquid-containing electric apparatus, as a static-electricity generating part, the surface part of the filter 4 of the static-electricity generating part is formed so as to have equality with the deterioration state of the surface part of the solid insulator of the liquid- containing electric apparatus.

8. 发明专利

JPH10332681A METHOD FOR MEASURING COPPER CONCENTRATION IN INSULATING OIL 失效
公开(公告)号：JPH10332681A
公开(公告)日：1998-12-18
申请号：JP13681597
申请日：1997-05-27
申请人： MITSUBISHI ELECTRIC CORP
发明人： ITAKURA ISAO , TSUCHIE MOTOO , KUSAKABE TOKUO
IPC分类号： G01N31/12 , G01N21/31 , G01N33/28
摘要： PROBLEM TO BE SOLVED: To provide a method for measuring copper concentration in insulating oil which is precise and can be performed in a short time. SOLUTION: With regard to the copper concentration measuring method, a first sample as oil to be insulated, a second sample as insulating oil not containing copper and a third sample as the insulating oil containing a normal amount of copper are combusted to be measured with an atomic absorption photometer. Light absorption wave height values are measured in wavelength of copper respectively, and copper concentration in oil to be insulated is measured by comparing each light absorption wave height value. The insulating oil and that which butyl acetate is melted at the same ratio by means of copper in each sample are used as each sample and measuring is performed.

9. 发明专利

JPH08124751A METHOD FOR DIAGNOSING SERVICE LIFE AND ABNORMALITY OF OIL-IMMERSED ELECTRIC EQUIPMENT 失效
公开(公告)号：JPH08124751A
公开(公告)日：1996-05-17
申请号：JP26029894
申请日：1994-10-25
申请人： MITSUBISHI ELECTRIC CORP
发明人： TSUCHIE MOTOO , ONO TAKAO , NAKATSUKA SHOJI , HAYASHI SATORU , YOSHIKAWA TORU
IPC分类号： G01J5/00 , H01F27/00
摘要： PURPOSE: To improve the diagnosing accuracy of a method for diagnosing service light of oil-immersed electric equipment by which the remaining service life of oil- immersed electric equipment is diagnosed by finding the average polymerization degree of the insulating paper of the equipment and to obtain a method by which the abnormality of the electric equipment is diagnosed from the changing state of the deterioration product of the insulating paper in insulating oil. CONSTITUTION: The service life of the winding 1 of oil-immersed electric equipment is diagnosed by measuring the temperature of the winding 1 with an infrared thermometer 4 which can directly measure the temperature in a non-contacting state. In addition, the abnormality of the electric equipment is diagnosed from the changing state of furfural which is the deterioration product of the insulating paper of the equipment immersed in insulating oil by periodically measuring the furfural. Therefore, the service life of the winding 1 can be diagnosed with high accuracy, because the temperature of the winding 1 is directly measured with the thermometer 4 and the service life is diagnosed from the temperature. In addition, the abnormality of the electric equipment can be diagnosed by periodically measuring the furfural which is the deterioration product of the insulating paper immersed in the insulating oil.

10. 发明专利

JPH06124840A OIL-FILLED ELECTRIC EQUIPMENT 失效
公开(公告)号：JPH06124840A
公开(公告)日：1994-05-06
申请号：JP27282892
申请日：1992-10-12
申请人： MITSUBISHI ELECTRIC CORP
发明人： HASHIMOTO HISASHI , TSUCHIE MOTOO
IPC分类号： H01F27/00 , H01F27/14
摘要： PURPOSE:To reduce degradation of an oil-filled electric equipment caused by light irradiation of organic liquid filled in a transparent vessel of a respiration apparatus used for a respiration mouth. CONSTITUTION:Organic liquid 8 of a respiration apparatus 5 of a housing vessel 2 of an electric equipment 1, with an opening 4a, shall contain 1ppm or less of sulfer, nitrogen and oxygen.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式