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公开(公告)号：US09640339B2
公开(公告)日：2017-05-02
申请号：US14898404
申请日：2014-06-24
发明人： Klaus Hoepfl , Silke Wrede , Hubert Zwirglmaier
CPC分类号： H01H9/0005 , F16L55/1108 , H01H9/0044 , H01H2009/005
摘要： An on-load tap changer has a switching tube, an oil suction pipe arranged centrally and coaxially along an axis inside the switching tube, and a kerosene drain screw so mounted in a base of the on-load tap changer that it is coaxial with an axis of the oil suction pipe, with the axis of the switching tube, and with an axis of the on-load tap changer. A bearing ring is so acted on by a resilient element at one side and radially with respect to the axis of the on-load tap changer that the switching tube and the oil suction pipe both mechanically positively cooperate with the bearing ring and are centered about the axis of the on-load tap changer.
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公开(公告)号：US1737663A
公开(公告)日：1929-12-03
申请号：US72964624
申请日：1924-08-01
发明人： MAHONEY JOSEPH N
CPC分类号： H01H33/75 , F23K3/12 , H01H9/52 , H01H33/55 , H01H2009/005
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公开(公告)号：US1732895A
公开(公告)日：1929-10-22
申请号：US73057824
申请日：1924-08-07
发明人： HERMANN KERGEL
IPC分类号： H01H33/55
CPC分类号： H01H33/55 , H01H2009/005
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公开(公告)号：US1540596A
公开(公告)日：1925-06-02
申请号：US28635319
申请日：1919-03-31
发明人： BURNHAM GEORGE A
CPC分类号： H01H33/75 , F23K3/12 , H01H9/52 , H01H33/55 , H01H2009/005
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公开(公告)号：US1534707A
公开(公告)日：1925-04-21
申请号：US62425323
申请日：1923-03-10
申请人： GEN ELECTRIC
发明人： HILLIARD JOHN D
IPC分类号： H01H33/55
CPC分类号： H01H33/55 , H01H2009/005
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公开(公告)号：US20170288572A1
公开(公告)日：2017-10-05
申请号：US15388357
申请日：2016-12-22
申请人： LSIS CO., LTD.
发明人： Tae-Bum KIM
CPC分类号： H02M7/44 , H01F27/04 , H01F27/12 , H01F27/29 , H01F29/02 , H01H9/0044 , H01H2009/005
摘要： Disclosed is a phase shift transformer for supplying voltage to a plurality of unit power cells in a medium voltage inverter system. The phase shift transformer according to the present invention comprises a first bushing arranged by the side of a tank and connected to a first winding to apply high voltage and a plurality of second bushings arranged on the top of a cover and connected to each of a plurality of second windings to output low voltage, wherein three outputs of the plurality of second bushings can be applied to unit power cells.
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公开(公告)号：US2294712A
公开(公告)日：1942-09-01
申请号：US34895940
申请日：1940-07-31
申请人： GEN ELECTRIC
发明人： KARL BOLTE
IPC分类号： H01F29/02
CPC分类号： H01F29/025 , H01H2009/005
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公开(公告)号：US1483839A
公开(公告)日：1924-02-12
申请号：US30055719
申请日：1919-05-29
申请人： SEARS B CONDIT JR
发明人： BURNHAM GEORGE A
CPC分类号： H01H33/75 , F23K3/12 , H01H9/52 , H01H33/55 , H01H2009/005
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公开(公告)号：US1769562A
公开(公告)日：1930-07-01
申请号：US11977126
申请日：1926-06-30
发明人： WOOD JOSEPH D
IPC分类号： H01H33/55
CPC分类号： H01H33/55 , H01H2009/005
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公开(公告)号：US1573179A
公开(公告)日：1926-02-16
申请号：US48815021
申请日：1921-07-28
发明人： MAHONEY JOSEPH N
CPC分类号： H01H33/75 , F23K3/12 , H01H9/52 , H01H33/55 , H01H2009/005
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