公开(公告)号：EP0066298A3

公开(公告)日：1985-05-15

申请号：EP82104836

申请日：1982-06-02

申请人： Hitachi, Ltd.

发明人： Yamaguchi, Motoo ,  Sone, Isamu ,  Hirasawa, Kunio ,  Yoshioka, Yoshio ,  Nishikawa, Akio ,  Suzuki, Hiroshi ,  Sato, Mikio ,  Hosokawa, Masao

IPC分类号： H01H33/02

CPC分类号： H01H33/021

摘要： A SF 6 gas insulating electric apparatus usable as a circuit breaker, etc., containing a SF 6 gas insulator and a resin insulator, both of which insulators are present in an atmosphere to be exposed to arcs, characterized by making at least the surface portion to be exposed to arcs of the resin insulator from a polymer containing nitrogen atoms or a polyolefin resin. and if necessary together with an inorganic filler powder, is excellent in both surface and inner arc resistance and can maintain breaking performance for a long period of time.

公开(公告)号：EP0103758A2

公开(公告)日：1984-03-28

申请号：EP83108179.9

申请日：1983-08-18

申请人： HITACHI, LTD.

发明人： Yamagiwa, Tokio ,  Ishikawa, Toshio ,  Ozawa, Jun ,  Endo, Kaoru ,  Hosokawa, Masao

IPC分类号： G01R31/32

CPC分类号： H01H33/26 ,  G01R31/3333

摘要： There is disclosed a method of testing and verifying a performance for insulation to ground of a disconnecting switch when breaking a charging current. This disconnecting switch has a movable electrode (62) and a fixed electrode (64) which are arranged in a tank so as to face each other. One of these electrodes is connected to an electrostatic capacity load (C,) and the other is connected to a power supply (40). This test method comprises the steps of: applying a voltage from the power supply (40) through the disconnecting switch to the load to cause the voltage to be trapped in the load; and applying a voltage of the polarity opposite to that of the trapped charged voltage from the power supply (40) to the disconnecting switch to cause the discharge between those electrodes, thereby verifying the performance for insulation to ground.

公开(公告)号：EP0103758B1

公开(公告)日：1989-05-31

申请号：EP83108179.9

申请日：1983-08-18

申请人： HITACHI, LTD.

发明人： Yamagiwa, Tokio ,  Ishikawa, Toshio ,  Ozawa, Jun ,  Endo, Kaoru ,  Hosokawa, Masao

IPC分类号： G01R31/32

CPC分类号： H01H33/26 ,  G01R31/3333

公开(公告)号：EP0103758A3

公开(公告)日：1985-08-28

申请号：EP83108179

申请日：1983-08-18

申请人： HITACHI, LTD.

发明人： Yamagiwa, Tokio ,  Ishikawa, Toshio ,  Ozawa, Jun ,  Endo, Kaoru ,  Hosokawa, Masao

IPC分类号： G01R31/32

CPC分类号： H01H33/26 ,  G01R31/3333

摘要： There is disclosed a method of testing and verifying a performance for insulation to ground of a disconnecting switch when breaking a charging current. This disconnecting switch has a movable electrode (62) and a fixed electrode (64) which are arranged in a tank so as to face each other. One of these electrodes is connected to an electrostatic capacity load (C,) and the other is connected to a power supply (40). This test method comprises the steps of: applying a voltage from the power supply (40) through the disconnecting switch to the load to cause the voltage to be trapped in the load; and applying a voltage of the polarity opposite to that of the trapped charged voltage from the power supply (40) to the disconnecting switch to cause the discharge between those electrodes, thereby verifying the performance for insulation to ground.

公开(公告)号：EP0066298A2

公开(公告)日：1982-12-08

申请号：EP82104836.0

申请日：1982-06-02

申请人： Hitachi, Ltd.

发明人： Yamaguchi, Motoo ,  Sone, Isamu ,  Hirasawa, Kunio ,  Yoshioka, Yoshio ,  Nishikawa, Akio ,  Suzuki, Hiroshi ,  Sato, Mikio ,  Hosokawa, Masao

IPC分类号： H01H33/02

CPC分类号： H01H33/021

摘要： A SF 6 gas insulating electric apparatus usable as a circuit breaker, etc., containing a SF 6 gas insulator and a resin insulator, both of which insulators are present in an atmosphere to be exposed to arcs, characterized by making at least the surface portion to be exposed to arcs of the resin insulator from a polymer containing nitrogen atoms or a polyolefin resin. and if necessary together with an inorganic filler powder, is excellent in both surface and inner arc resistance and can maintain breaking performance for a long period of time.