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1. 发明专利

JPH01256108A FIXING OF SUPERCONDUCTING COIL 失效
公开(公告)号：JPH01256108A
公开(公告)日：1989-10-12
申请号：JP8315988
申请日：1988-04-06
申请人： TAKAOKA ELECTRIC MFG CO LTD
发明人： KIMATA HIDESHI , GOTOU KANEHARU
IPC分类号： H01F6/00 , H01F36/00 , H01L39/04
摘要： PURPOSE:To surely fix a coil frame to a low temperature thermostatic chamber, and prevent the generation of AC loss and the destruction at the time of short circuit, by selecting thermal expansion coefficients of materials of the low temperature thermostatic chamber and the coil frame, in the manner in which mounting is enabled at a normal temperature, and the coil frame is fixed at a temperature of superconducting. CONSTITUTION:The thermal expansion coefficients of both materials are so set that mounting is enabled at a normal temperature, and fixing is completed at a very low temperature. In the case where the thermal expansion coefficient of material of a low temperature thermostatic chamber 3 is larger than that of a coil frame 4, the coil frame 4 is fixed to the wall of an external layer. In the case where the thermal expansion coefficient of plastic as material of the low temperature thermostatic chamber 3 is smaller than that of the coil frame 4, the coil frame 4 is fixed to the wall of the internal layer. Thereby, the coil frame 4 and the low temperature thermostatic chamber 3 can be tightly fixed at a very low temperature, and the reduction of AC loss and the protection of deformation of a coil 2 at the time of short circuit are enabled.

2. 发明专利

JPS5424242A BONDING OF ALUMINUM CONDUCTOR AND COPPER CONNECTING STRIP 失效
公开(公告)号：JPS5424242A
公开(公告)日：1979-02-23
申请号：JP8952877
申请日：1977-07-26
申请人： TAKAOKA ELECTRIC MFG CO LTD , SHIROYAMA SEISAKUSHO KK
发明人： KIMATA HIDESHI , KATOU FUKUZOU , YONEZAWA MASATOSHI
IPC分类号： H01R4/62 , B23K20/00

3. 发明专利

JPS60180450A METHOD OF REMOTELY MEASURING UNDERGROUND TRANSFORMER 失效
公开(公告)号：JPS60180450A
公开(公告)日：1985-09-14
申请号：JP3434184
申请日：1984-02-27
申请人： TAKAOKA ELECTRIC MFG CO LTD
发明人： KIMATA HIDESHI , KATOU FUKUZOU
IPC分类号： H01F27/00 , H02J13/00

4. 发明专利

JPH04318699A THERMAL SIGNAL TRANSMITTER 失效
公开(公告)号：JPH04318699A
公开(公告)日：1992-11-10
申请号：JP11073591
申请日：1991-04-17
申请人： TAKAOKA ELECTRIC MFG CO LTD
发明人： DAICHO YOSHIO , KIMATA HIDESHI
IPC分类号： G01K1/02 , G08C17/00 , G08C19/00
摘要： PURPOSE:To unnecessiate a particular power supply for a thermal signal transmitting circuit by preparing the shape and size of a current collector so that power generated in the current collector by the electric field in the neighborhood of a current charging section during the hot line work can be large enough to drive a thermal signal transmission circuit. CONSTITUTION:During the hot line work, when AC voltage V0 is applied between a current charging section 6 and ground 7, an AC electric field is generated in the neighborhood of the current charging section 6, between two current collector boards 1 and 2 an AC voltage Vp is induced, and electric field energy Ep is accumulated therebetween. Further, the electric field energy accumulated between two current collector boards is supplied as power for driving a thermal signal transmission circuit 3. Furthermore, the thermal signal transmission circuit 3 deals with temperature detected by a thermal sensor 4, converts the temperature into a thermal information signal such as temperature, temperature rise, temperature abnormality alarm, and to transmit the signal to a signal receiving unit 5. In this case, the electrostatic capacity Cs between current collector board 1, 2 and ground 7 and the electrostatic capacity Cp between current collector boards 1 and 2 are set in advance so that the magnitude of electric field energy Ep can meet the power required to drive the thermal signal transmission circuit 3.

5. 发明专利

JPH04318592A TEMPERATURE DISPLAY DEVICE 失效
公开(公告)号：JPH04318592A
公开(公告)日：1992-11-10
申请号：JP11073991
申请日：1991-04-17
申请人： TAKAOKA ELECTRIC MFG CO LTD
发明人： KIMATA HIDESHI , DAICHO YOSHIO
IPC分类号： G01K7/00 , G01K7/02 , G01K7/24 , G01R31/02 , G09F9/00
摘要： PURPOSE:To constitute the temperature display device which does not use any special power source such as a battery so as to measure temperature nearby a charging part and operates by receiving the energy of an electric field produced with the AC voltage of the charging part in a hot-line state. CONSTITUTION:Two current collection plates 1 and 2 are provided nearby the charging part 6 so as to produce electric power of necessary level between the current collection plates 1 and 2 with an AC electric field produced at the periphery of the charging part 6 in the hot-line state. This electric power is supplied to a temperature display circuit 3 and temperature detected by a temperature sensor 4 is displayed on a liquid crystal element 5.

6. 发明专利

JPS57135339A CORROSION CURRENT MEASURING METHOD OF UNDERGROUND TRANSFORMER 失效
公开(公告)号：JPS57135339A
公开(公告)日：1982-08-20
申请号：JP2043981
申请日：1981-02-14
申请人： TOKYO ELECTRIC POWER CO , TAKAOKA ELECTRIC MFG CO LTD
发明人： SHIMIZU YUTAKA , KIMATA HIDESHI , ABE RIYUUICHI
IPC分类号： G01N27/26 , G01N17/00 , G01N17/02
摘要： PURPOSE:To detect a corrosion current of a metallic tank of an underground transformer as it is in a working state, by measuring in advance a resistance value between an earth terminal and a base terminal before the transformer is buried, and measuring a potential difference between measuring terminals after the transformer has been buried. CONSTITUTION:On the upper part of a metallic tank 1 having a cooling fin 1a, a terminal chamber 1b is formed and a terminal base 2 having a pair of measuring terminals 2a, 2b is provided. On the other hand, an earth terminal 3 is installed to the upper part of the tank 1, also a base terminal 10 is installed to a lower base 1C, and the terminal 2a and the terminal 3, and the terminal 2b and the terminal 10 are connected respectively. As for such a transformer, before it is buried, a resistance value R between the terminal 3 and the terminal 10 is measured in advance. Subsequently, the transformer is installed in an underground hole 6, and an earth rod of ground 13 is connected to the terminal 3 with an earth wire 8. When the transformer is installed in this way a potential difference (e) between the terminal 2a and 2b, a corrosion current (i) shown by the expression is derived and an advancing state of corrosion is monitored.

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