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81. 发明专利

JPH10208596A SELF-ARC-EXTINGUISHING TYPE GAS-BLAST BREAKER 失效
公开(公告)号：JPH10208596A
公开(公告)日：1998-08-07
申请号：JP998497
申请日：1997-01-23
申请人： FUJI ELECTRIC CO LTD
发明人： TAKAO NOBUYUKI , ITO TAKESHI
IPC分类号： H01H33/82 , H01H33/985
摘要： PROBLEM TO BE SOLVED: To extinguish the arc securely by securing the gas pressure in an arc extinguishing chamber necessary for arc extinguishing. SOLUTION: A partitioning tube 18 to divide an arc extinguishing chamber 17 axial symmetrically is provided so as to make its outer side in the first space 171 and its inner side in the second space 172, and a pressure discharge valve 181 made in OPEN only when the gas pressure of the second space is larger than a specific value, and a check valve 182 made in OPEN only when the gas pressure of the first space 171 rises, are provided. Since the check valve 182 is made OPEN when the gas pressure of the first space 171 rises, the gas pressure of the second space 172 also rises. On the other hand, since both the gas pressures of the pressure discharge 181 and the check valve 182 are CLOSED even though the gas pressure of the first space 171 is reduced after its maximum value, the gas pressure of the second space 172 maintains the maximum value, and at the time when the difference of the gas pressure is made at a specific value or higher, the gas flows out from the second space 172 to the first space 171 to raise the gas pressure of the first space 171, and the gas blowout from a nozzle hole 161 is intensified.

82. 发明专利

JPH1031944A POWER CIRCUIT-BREAKER 失效
公开(公告)号：JPH1031944A
公开(公告)日：1998-02-03
申请号：JP8537997
申请日：1997-04-03
申请人： ASEA BROWN BOVERI
发明人： ZEHNDER LUKAS DR , ANDERES ROBERT , BODO BRUEHL , DAHLER CHRISTIAN , ION GAVRILITA , KALTENEGGER KURT , JOACHIM STECHBARTH
IPC分类号： H01H33/70 , H01H33/12 , H01H33/18 , H01H33/82 , H01H33/90 , H01H33/91 , H01H33/915
摘要： PROBLEM TO BE SOLVED: To further improve interrupting performance by allowing an insulating medium source to which a high pressure is applied to directly communicate with an arc area through an injection passage. SOLUTION: Compression units 61, 61 are introduced into a holder 13 so that injection passages 62, 63 extended from them and combined to an arc area can be formed as short as possible. The incident angles of the injection passages 62, 63 are varied, whereby the blowing to an arc 23 is optimized, and the pressure generation can be effectively enhanced by the thermal action of the insulating gas injected to the arc 23 under pressurization. The pressurized insulating gas can be also guided to a ring passage concentrically surrounding the arc area. A number of injection passages distributed from the ring passage to the circumference are allowed to communicate with the arc area.

83. 发明专利

JPH08329800A CIRCUIT BREAKER 失效
公开(公告)号：JPH08329800A
公开(公告)日：1996-12-13
申请号：JP15528995
申请日：1995-05-29
申请人： NISSIN ELECTRIC CO LTD
发明人： KIKKO YOSHIAKI
IPC分类号： H01H33/82 , H01H33/88 , H01H33/91
摘要： PURPOSE: To reduce operation force of an operation unit by reducing the diameter of a cylinder. CONSTITUTION: Through a guide 31, a connecting body 30 is arranged in an end part of an insulating operation bar 29 arranged in a cylinder 19, and a piston 32 is fixed to a base part of the connecting body 30. A puffer chamber 44 is formed of the cylinder 19, a movable conductor 40, the piston 32 and a movable side contactor stand 15, and plural piston through holes 35 communicated with the puffer chamber 44 are formed almost on the same circumference in the piston 32. A conical coil spring 45 is used as a spring to energize a check valve 36 in the direction for blocking up the respective piston through holes 35, and its conical coil spring 45 is arranged on the guide 31 of an end part of the insulating operation bar 29.

84. 实用新型

JPH0538508Y2 失效
公开(公告)号：JPH0538508Y2
公开(公告)日：1993-09-29
申请号：JP9704488
申请日：1988-07-22
IPC分类号： H01H33/82 , H01H33/88

85. 实用新型

JPH0568045U 失效
公开(公告)号：JPH0568045U
公开(公告)日：1993-09-10
申请号：JP173492
申请日：1992-01-22
IPC分类号： H01H33/70 , H01H33/82

86. 发明专利

JPH0495322A GAS BLAST CIRCUIT BREAKER 失效
公开(公告)号：JPH0495322A
公开(公告)日：1992-03-27
申请号：JP20500390
申请日：1990-08-03
申请人： HITACHI LTD
发明人： TSUKUSHI MASANORI , HASHIMOTO TAKESHI , SATO MINORU , KUROSAWA YUKIO , HIRASAWA KUNIO , ENDO FUMIMASA , YAMAGIWA TOKIO
IPC分类号： H01H33/82 , H01H33/70 , H01H33/91
摘要： PURPOSE:To secure high withstand voltage and also prevent the performance of a gas circuit breaker from being deteriorated by consumed deformation even after a large current is cut off by specifying both the angle of each taper portion provided on the lower side of the throat portion of a nozzle and the amount of boron nitride with which an insulating material is filled. CONSTITUTION:A nozzle 8 for blowing an arc-extinguishing gas to an arc 9 generated between a fixed electrode 1 and a movable electrode 2 is provided and taper portions 11, 12 for enhancing the energy intensity reflection factor of the arc 9 are provided to the respective portions of the broadening portion 13 of the nozzle 8 in a gas blast circuit breaker having a throat portion 10 from which either of electrodes is taken in and out and the broadening portion 13 provided on the lower side of the throat portion 10, and the nozzle 8 has a fluororesin insulating material filled with boron nitride powder serving as a filler which occupies less than 15% of the capacity of the insulating material. An energy beam which is radiated from the arc 9 generated between the electrodes and in the radial direction of the arc 9 is blocked by the portions 11, 12 both provided on the lower side of the throat portion of nozzle, so that the amount of the energy beam entering into the nozzle can decreased. As a result, the internal arc resistance of the gas blast circuit breaker can be maintained even when the amount of the boron nitride filling the insulating material is reduced.

87. 实用新型

JPS6059435U 失效
公开(公告)号：JPS6059435U
公开(公告)日：1985-04-25
申请号：JP15198183
申请日：1983-09-30
IPC分类号： H01H33/82

88. 发明专利

JPS5856209B2 JPS5856209B2 - 失效
公开(公告)号：JPS5856209B2
公开(公告)日：1983-12-14
申请号：JP11287977
申请日：1977-09-19
申请人： Mitsubishi Electric Corp
发明人： ASADA MASAYOSHI , WAKIMOTO HAJIME , YAMASHITA JUJI
IPC分类号： H01H33/86 , H01H33/82 , H01H33/825

89. 实用新型

JPS58165831U JPS58165831U - 失效
公开(公告)号：JPS58165831U
公开(公告)日：1983-11-04
申请号：JP3571283
申请日：1983-03-10
IPC分类号： H01H33/82 , H01H33/825

90. 实用新型

JPS5536900Y2 失效
公开(公告)号：JPS5536900Y2
公开(公告)日：1980-08-30
申请号：JP6158273
申请日：1973-05-28
IPC分类号： H01H33/86 , H01H1/14 , H01H33/70 , H01H33/82 , H01H33/867 , H01H33/873

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