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1. 发明专利

JPS6074910A METHOD OF MANAGING PURITY OF INSULATING GAS 失效
公开(公告)号：JPS6074910A
公开(公告)日：1985-04-27
申请号：JP18184383
申请日：1983-09-28
申请人： MITSUBISHI ELECTRIC CORP
发明人： YAMADA NAOYA , KAWASHIMA TAKESHI , FUKAMACHI TETSUO
IPC分类号： H02B13/055 , F25J1/00 , H01F27/00 , H01H33/57 , H02B13/02 , H02G5/06 , H02G15/26 , H02G15/28

2. 发明专利

JPH0368113A OIL-FILLED ELECTRIC MACHINERY AND APPARATUS 失效
公开(公告)号：JPH0368113A
公开(公告)日：1991-03-25
申请号：JP20276889
申请日：1989-08-07
申请人： MITSUBISHI ELECTRIC CORP
发明人： KAWASHIMA TAKESHI
IPC分类号： H01F27/00
摘要： PURPOSE:To prevent dielectric breakdown without excessively suppressing the fluidization speed of insulating oil by a method wherein the electric signal coming from the electric charge cloud, generated on the interface between insulating oil and a solid insulator by the fluidization of insulating oil, is detected through the intermediary of an insulating core. CONSTITUTION:The oil-filled electric machine such as a transformer and the like is formed by providing a wiring body, having a winding and a solid insulator, inside a tank 1 in which insulating oil 2 is circulated. An electrostatic negative charge cloud 9 is generated on the interface of the oil 2 and the solid insulator by the circulation of the above-mentioned oil 2. Pertaining to the electric signal sent from the cloud 9, a positive charge cloud corresponding to the electric signal is detected by the detector 27 which is connected to the insulated core 24 provided through the intermediary of the electric insulator 23 of the core main body 22. When the detected current value is in excess of the prescribed value, an alarm is given, and the flow speed of oil is made slower. At this time, the dielectric breakdown due to the superposition of electric field of the charge cloud can be prevented and this detection is monitored at all times without suppressing the flow speed of the insulating oil in excess of the required extent.

3. 发明专利

JPH0245409B2 失效
公开(公告)号：JPH0245409B2
公开(公告)日：1990-10-09
申请号：JP18184383
申请日：1983-09-28
申请人： MITSUBISHI ELECTRIC CORP
发明人： YAMADA NAOYA , KAWASHIMA TAKESHI , FUKAMACHI TETSUO
IPC分类号： H02B13/055 , F25J1/00 , H01F27/00 , H01H33/57 , H02B13/02 , H02G5/06 , H02G15/26 , H02G15/28

4. 发明专利

JPH01191406A STATIONARY INDUCTION ELECTRIC APPARATUS 失效
公开(公告)号：JPH01191406A
公开(公告)日：1989-08-01
申请号：JP1469188
申请日：1988-01-27
申请人： MITSUBISHI ELECTRIC CORP
发明人： KAWASHIMA TAKESHI
IPC分类号： H01F27/12 , G01R29/24 , H01F27/00 , H01F27/40
摘要： PURPOSE:To measure and control the quantity of space charge stored in an oil tank and a stationary unit and to prevent insulation in a stationary induction electric apparatus from braking by providing an insulating tank plate in the tank and providing a monitor for generating an alarm by a signal representing the quantity of the charge flowing into the plate. CONSTITUTION:An insulated tank 21 electrically insulated by an insulator 23 at the other part of an oil tank 22 is provided. A monitor 24 having a measuring comparator for measuring a signal received by an insulating tank plate of an electric signal from a positive charge cloud 9 composed of insulating oil 6 charged in positive polarity stored at the top of the tank and outputting an alarm when the value is a predetermined value or more is provided. Thus, a dangerous state due to stored static electricity of a stationary induction electric apparatus can be immediately known, and the device which can prevent its insulator from damaging due to the stored charge cloud is obtained.

5. 发明专利

JPS5921009A Oil-immersed electric apparatus 失效
标题翻译：油电设备
公开(公告)号：JPS5921009A
公开(公告)日：1984-02-02
申请号：JP13143382
申请日：1982-07-26
申请人： Mitsubishi Electric Corp
发明人： TAMAOKI EIICHI , MIYAMOTO AKIO , KAWASHIMA TAKESHI
IPC分类号： H01F27/00 , H01F27/40
CPC分类号： H01F27/402 , H01F2027/404 , H01F2027/406
摘要： PURPOSE:To prevent deterioration of insulation property of electric insulation oil and breakdown of the insulation oil in a transformer, by a method wherein a white clay treating device is installed at midway of oil circulation system, and polar material contained within electric insulation oil in the transformer oil tank is removed. CONSTITUTION:A white clay treating device to remove polar material contained in electric insulation oil 3, together with a pipe 11 to be connected to a transformer tank 2, a second oil circulation pump 12, an oil flow adjusting valve 13 to control the oil flow amount, a temperature control system 14 for controlling the polar material removing capacity of the white clay treating device 10 and a filtering device 15 for catching suspended particles in the oil so as to prevent the blinding constitutes a white clay treating oil circulation system 16. If polar material is produced on account of deterioration of the electric insulation oil 3 within the transformer tank 2, it is transferred to the white clay treating device by the second oil circulation pump 12 and the polar material is removed. And then oil is returned to the oil tank again through the pipe 11.
摘要翻译：目的：为了防止电绝缘油的绝缘性能下降，变压器绝缘油的破坏，通过在油循环系统中途安装白土处理装置的方法，以及包含在绝缘油中的极性材料变压器油箱被拆除。构成：一种白土处理装置，用于除去电绝缘油3中所含的极性材料，连同要连接到变压器箱2的管11，第二油循环泵12，油流调节阀13，以控制油流用于控制白土处理装置10的极性物质去除能力的温度控制系统14和用于捕获油中的悬浮颗粒的过滤装置15，以防止致盲构成白土处理油循环系统16.如果由于变压器箱2内的电绝缘油3的劣化而产生极性物质，所以通过第二油循环泵12将其转移到白土处理装置，并且除去极性物质。然后通过管道11将油再次返回到油箱。

6. 发明专利

JPS5815066B2 失效
公开(公告)号：JPS5815066B2
公开(公告)日：1983-03-23
申请号：JP14789077
申请日：1977-12-08
申请人： MITSUBISHI ELECTRIC CORP
发明人： KAWASHIMA TAKESHI , YAMADA NAOYA , MYAMOTO AKIO , TSUCHE MOTOO
IPC分类号： G01R31/00 , G01R31/12 , H01F27/00 , H01F27/12

7. 发明专利

JPS57156672A AC VOLTAGE SUPERPOSED DC HIGH VOLTAGE GENERATOR 失效
公开(公告)号：JPS57156672A
公开(公告)日：1982-09-28
申请号：JP4279181
申请日：1981-03-23
申请人： MITSUBISHI ELECTRIC CORP
发明人： YAMADA NAOYA , KAWASHIMA TAKESHI
IPC分类号： H02M7/06
摘要： PURPOSE:To obtain an economical AC voltage superposed DC high voltage generator by a method wherein an AC electric power source for superposition of AC voltage is used in common as the AC electric power source to be provided for generation of a DC voltage. CONSTITUTION:A capacitor 8 for superposition of AC voltage takes partial charge of the AC voltage by the inverse ratio of capacitance of a smoothing capacitor 3 and the capacitor 8 thereof for superposition of AC voltage when a rectifier 2 is not conducting, and the AC voltage is superposed on the DC voltage. Because magnitude of the AC voltage to be superposed on the DC voltage thereof can be controlled by changing the ratio of capacitance between the smoothing capacitor 3 and the capacitor 8 for superposition of AC voltage, magnitude of the AC voltage to be superposed on the DC voltage can be controlled simply by changing the value of the smoothing capacitor 3, or by changing the value of the capacitor 8 for superposition of the AC voltage, or by changing the value of the smoothing capacitor 3 and the capacitor 8 for superposition of the AC voltage at the same time.

8. 发明专利

JPS54119967A STATIC ELECTRICITY MONITOR FOR INSULATING FLUID 失效
公开(公告)号：JPS54119967A
公开(公告)日：1979-09-18
申请号：JP2723478
申请日：1978-03-09
申请人： MITSUBISHI ELECTRIC CORP
发明人： UMEMOTO YUKIHIDE , YAMADA NAOYA , KISHI AKIO , KAWASHIMA TAKESHI
IPC分类号： G01N27/60 , G01R29/24
摘要： PURPOSE:To enable to measure and monitor generated static electricity amount due to insulating fluid flow by circulating the fluid by utilizing the head between two points of the insulating fluid flow passage. CONSTITUTION:The insulating oil 1 of a transformer A or the like is returned through an upper cooling pipe 2, oil cooler 4, oil circulating pump 5 and lower cooling pipe 3 again to the transformer. A static electricity monitor B is now connected to any two points of the place where the head occurs in an oil circulating system such as, for example, at upper and lower oil collecting valves 8, 9 of the pump 5. Thus, a flow control valve 10 is regulated to become the standard amount preset at the indication of a flow meter 11 so as to measure the charged flow amount at the measuring unit 7 via an ammeter 15. Since the charged amount also depends upon the oil intrinsic resistance rho or dielectric loss rate tan delta, these measuring electrodes 12 are provided in a charge reducing tank to as to convert the charged amount. When an automatic flow velocity controller is provided in the circulating system, it can always measure under set flow velocity.

9. 发明专利

JPH0661071A STATIONARY ELECTROMAGNETIC INDUCTION APPARATUS 失效
公开(公告)号：JPH0661071A
公开(公告)日：1994-03-04
申请号：JP23647192
申请日：1992-08-11
申请人： MITSUBISHI ELECTRIC CORP
发明人： KAWASHIMA TAKESHI
IPC分类号： H01F27/28
摘要： PURPOSE:To reduce stray loss generated on the planar coil surface of a stationary electromagnetic induction apparatus, by forming trench type air gap parts along the coil peripheral length direction. CONSTITUTION:In a stationary electromagnetic induction apparatus having a planar coil 11 wound in a rectangular frame type, penetrating trench type air gap parts 12 are partly arranged in the coil peripheral length direction on the above planar coil 11. Thereby the conductor width is equivalently reduced with respect to the leakage magnetic flux vertically interlinking a coil plane surface, and the stary loss is reduced. Hence the stray loss of the stationary electromagnetic induction apparatus is reduced, so that the efficiency of an apparatus is improved and the size of a cooling apparatus can be reduced.

10. 发明专利

JPS61121305A Stationary induction apparatus 失效
标题翻译：静电感应装置
公开(公告)号：JPS61121305A
公开(公告)日：1986-06-09
申请号：JP24276184
申请日：1984-11-16
申请人： Mitsubishi Electric Corp
发明人： KATOU AKIYUKI , KAWASHIMA TAKESHI
IPC分类号： H01F27/14
CPC分类号： H01F27/14
摘要： PURPOSE:To allow mulfunction of a relay and oil jet from a respirator to be eliminated by providing oil circulating pumps for sending oil into the side of a radiator and for sending out oil and constituting them so as to start them simultaneously, thereby practically preventing variations of oil pressure in starting. CONSTITUTION:Another oil circulating pump 5A is provided on the way of an upper pipe 4A. When only the oil circulating pump 5A is started in this configuration, oil A flows toward a radiator 2. However, variations of oil pressure are generated in starting the pump 5A to expand the volume of the radiator 2 owing to a positive pressure. Accordingly, since the simultaneous starting of the oil circulating pumps 5A and 5B cancells variations of oil pressure, change in the volume of the radiator 2 is lightened and not affected to the side of a conservator 6. Consequently, abrupt run of oil is by no means generated in a convservator piping system 8, thereby preventing mulfunction of a relay 7 and oil jet from a respirator 9.
摘要翻译：目的：通过提供油循环泵将散油器一侧的油送出并组合起来，以同时启动，从而可以消除来自呼吸器的继电器和喷油嘴，从而实际防止变化油压开始。构成：另一个油循环泵5A设置在上管道4A的路上。当在该结构中仅启动油循环泵5A时，油A朝向散热器2流动。然而，在启动泵5A时由于正压膨胀散热器2的体积而产生油压的变化。因此，由于油循环泵5A和5B的同时启动消除油压的变化，所以散热器2的体积变化减轻而不受储存器6侧的影响。因此，油的突然运转不会在调速器管路系统8中产生的装置，从而防止继电器7的连接和来自呼吸器9的油射流。

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