Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3032738A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EDWARD TOBIN
HACKBRIDGE ELECTRIC CONSTRUCTI
Original Assignee
EDWARD TOBIN
HACKBRIDGE ELECTRIC CONSTRUCTI
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EDWARD TOBIN, HACKBRIDGE ELECTRIC CONSTRUCTIfiledCriticalEDWARD TOBIN
Priority to GB3032738ApriorityCriticalpatent/GB568592A/en
Publication of GB568592ApublicationCriticalpatent/GB568592A/en
H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
H02H9/08—Limitation or suppression of earth fault currents, e.g. Petersen coil
Landscapes
Electrical Discharge Machining, Electrochemical Machining, And Combined Machining
(AREA)
Arc-Extinguishing Devices That Are Switches
(AREA)
Abstract
568,592. Protective arrangements. HACKBRIDGE ELECTRIC CONSTRUCTION CO., Ltd.. and TOBIN. E. Oct. 20. 1938. No. 30327. [Class 38 (iv)] The effective inductance of a Petersen coil 4 connected between earth and the neutral point 2 of a polyphase system 1, is varied by a secondary winding 6 across which different reactors 8 may be connected by switches 9.
GB3032738A1938-10-201938-10-20Improvements in and relating to arc suppression coils
ExpiredGB568592A
(en)