GB508133A - Improvements in or relating to magnetic shunts for use in watthour meters or other electromagnetic measuring instruments of the induction type
- Google Patents
Improvements in or relating to magnetic shunts for use in watthour meters or other electromagnetic measuring instruments of the induction type
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
GB15340/38A
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.)
CBS Corp
Original Assignee
Westinghouse Electric and Manufacturing Co
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 Westinghouse Electric and Manufacturing CofiledCriticalWestinghouse Electric and Manufacturing Co
Publication of GB508133ApublicationCriticalpatent/GB508133A/en
G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
G01R11/36—Induction meters, e.g. Ferraris meters
Abstract
508,133. Supply meters; current measurements; power meters. WESTINGHOUSE ELECTRIC & MANUFACTURING CO. May 23, 1938, No. 15340. Convention date, May 22, 1937. [Class 37] In order to improve the accuracy of a meter. or instrument at high loads, magnetic bypassing means are arranged in connection with a magnetic shunt, so that the magnetic shunt first becomes saturated in the central portion, this portion progressively increasing with increase of flux. The limbs 6 of the current magnet have lateral projections 14 separated by a narrow air gap, which is bridged by a shunt 16 of magnetic material. Between the shunt 16 and the magnet is a spacer 18 of brass, copper, fibre, &c., which may be secured by a rivet 19. The ends of the spacer 18 may not be turned up as shown, the air space between the ends of the shunt and the pole portions being sufficient.
GB15340/38A1937-05-221938-05-23Improvements in or relating to magnetic shunts for use in watthour meters or other electromagnetic measuring instruments of the induction type
ExpiredGB508133A
(en)
Improvements in or relating to electromagnetic responsive devices for use in watthour meters or other electromagnetic measuring instruments of the induction type