公开(公告)号：US2773155A

公开(公告)日：1956-12-04

申请号：US39457853

申请日：1953-11-27

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： FRIEDRICH ROBERT E

IPC: H01H33/98

CPC classification number: H01H33/98

公开(公告)号：US2592635A

公开(公告)日：1952-04-15

申请号：US643648

申请日：1948-02-05

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： LEEDS WINTHROP M ,  FRIEDRICH ROBERT E ,  FRY FRANCIS J

IPC: C08K5/13 ,  H01H33/92 ,  H01H33/98

CPC classification number: H01H33/98 ,  C08K5/13 ,  H01H33/92 ,  C08L1/26

公开(公告)号：US3891813A

公开(公告)日：1975-06-24

申请号：US35743773

申请日：1973-05-04

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： YOON KUE H ,  FRIEDRICH ROBERT E ,  SLETTEN ANDREAS M

IPC: H01H9/56 ,  H01H33/59 ,  H02J3/08 ,  H01H33/16

CPC classification number: H01H33/593

Abstract: A gallium cathode high voltage ignitron for synchronous closing of EHV circuit breakers, is provided, to control switching surge overvoltages. Due to the fast triggering time of the gallium cathode ignitron the circuit can be closed synchronously without pre-insertion resistance to obtain a switching surge level of 1.5 per unit or less.

Abstract translation: 提供用于EHV断路器同步闭合的镓阴极高压点火器，以控制开关浪涌过电压。 由于镓阴极点火器的快速触发时间，电路可以同步闭合而没有预插入电阻，以获得每单位或更小的开关浪涌电平1.5。

公开(公告)号：US2933576A

公开(公告)日：1960-04-19

申请号：US76517358

申请日：1958-10-03

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： FRIEDRICH ROBERT E ,  YECKLEY RUSSELL N

IPC: H01H33/14 ,  H01H33/88 ,  H01H33/915 ,  H01H75/04

CPC classification number: H01H33/14 ,  H01H33/886 ,  H01H75/04

公开(公告)号：US2621273A

公开(公告)日：1952-12-09

申请号：US15889250

申请日：1950-04-28

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： FRIEDRICH ROBERT E ,  LENTJES CARL G

IPC: H01H33/98

CPC classification number: H01H33/98

公开(公告)号：US2538774A

公开(公告)日：1951-01-23

申请号：US74554247

申请日：1947-05-02

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： FRIEDRICH ROBERT E ,  VON MEHREN OSWALD

IPC: H01H33/98

CPC classification number: H01H33/98

公开(公告)号：US2445442A

公开(公告)日：1948-07-20

申请号：US55213244

申请日：1944-08-31

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： LEEDS WINTHROP M ,  FRIEDRICH ROBERT E

IPC: H01H33/98

CPC classification number: H01H33/98

公开(公告)号：US2406327A

公开(公告)日：1946-08-27

申请号：US47015942

申请日：1942-12-26

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： FRIEDRICH ROBERT E

IPC: H01H1/023

CPC classification number: H01H1/0231 ,  Y10T29/49934