GB352867A - Improvements in or relating to apparatus with rotating coil system and dry plate rectifiers for measuring alternating current and voltage - Google Patents

Improvements in or relating to apparatus with rotating coil system and dry plate rectifiers for measuring alternating current and voltage

Info

Publication number
GB352867A
GB352867A GB34087/30A GB3408730A GB352867A GB 352867 A GB352867 A GB 352867A GB 34087/30 A GB34087/30 A GB 34087/30A GB 3408730 A GB3408730 A GB 3408730A GB 352867 A GB352867 A GB 352867A
Authority
GB
United Kingdom
Prior art keywords
voltage
alternating current
relating
coil system
dry plate
Prior art date
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
GB34087/30A
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Publication of GB352867A publication Critical patent/GB352867A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/22—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of ac into dc

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)

Abstract

352,867. Current and pressure meters ; static contact rectifiers; compensating instruments for temperature errors. SIEMENS & HALSKE AKT.- GES., Siemensstadt, Berlin. Nov. 12, 1930, No. 34087. Convention date, Nov. 21, 1929. [Class 37.] An alternating current or voltage is measured by means of a moving-coil instrument 5 and a copper oxide rectifier 4, temperature errors being minimized by limiting the effective surface of the rectifier plates to 1À5 sq. cm. or less and keeping the current density between 2À5 and 29 milliamperes per sq. cm.
GB34087/30A 1929-11-21 1930-11-12 Improvements in or relating to apparatus with rotating coil system and dry plate rectifiers for measuring alternating current and voltage Expired GB352867A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE352867X 1929-11-21

Publications (1)

Publication Number Publication Date
GB352867A true GB352867A (en) 1931-07-16

Family

ID=6278161

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34087/30A Expired GB352867A (en) 1929-11-21 1930-11-12 Improvements in or relating to apparatus with rotating coil system and dry plate rectifiers for measuring alternating current and voltage

Country Status (1)

Country Link
GB (1) GB352867A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005047548A1 (en) * 2005-09-30 2007-02-15 Siemens Ag Measuring load current flowing through inductance, e.g. in cryostats or on rotating shafts, involves determining load current for coil from primary side current of transformer and previously determined magnetizing current of transformer
CN102783006A (en) * 2010-02-08 2012-11-14 皇家飞利浦电子股份有限公司 Driver circuit for driving a load circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005047548A1 (en) * 2005-09-30 2007-02-15 Siemens Ag Measuring load current flowing through inductance, e.g. in cryostats or on rotating shafts, involves determining load current for coil from primary side current of transformer and previously determined magnetizing current of transformer
CN102783006A (en) * 2010-02-08 2012-11-14 皇家飞利浦电子股份有限公司 Driver circuit for driving a load circuit
CN102783006B (en) * 2010-02-08 2017-04-26 飞利浦照明控股有限公司 Driver circuit for driving a load circuit

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