GB390128A - Improvements in and relating to measuring electric current - Google Patents

Improvements in and relating to measuring electric current

Info

Publication number
GB390128A
GB390128A GB18169/31A GB1816931A GB390128A GB 390128 A GB390128 A GB 390128A GB 18169/31 A GB18169/31 A GB 18169/31A GB 1816931 A GB1816931 A GB 1816931A GB 390128 A GB390128 A GB 390128A
Authority
GB
United Kingdom
Prior art keywords
rectifiers
transformer
measuring
june
current
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
GB18169/31A
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.)
General Electric Co
Original Assignee
General Electric 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 General Electric Co filed Critical General Electric Co
Publication of GB390128A publication Critical patent/GB390128A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/22Arrangements 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)
  • Testing Of Individual Semiconductor Devices (AREA)

Abstract

390,128. Current and pressure meters. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A. -(Assignees of Allgemeine Elektricitats- Ges.; 2, Friedrich Karl-Ufer, Berlin.) June 23, 1931, No. 18169. Convention date, June 24, 1930. Void [Published under Sect. 91 of the Acts]. Drawings to Specification. [Class 37.] In an arrangement for measuring alternating currents and pressures using a direct current measuring-instrument and rectifiers, in order to reduce distortion of wave-form by the rectifiers and to compensate for scale errors introduced by the rectifiers, a transformer having a high leakage is interposed between the A.C. to be measured and the measuring apparatus. For current measurements the transformer may have " high saturation." The transformer may be designed also to have both high leakage and " high saturation."
GB18169/31A 1930-06-24 1931-06-23 Improvements in and relating to measuring electric current Expired GB390128A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE390128X 1930-06-24

Publications (1)

Publication Number Publication Date
GB390128A true GB390128A (en) 1933-03-30

Family

ID=6372275

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18169/31A Expired GB390128A (en) 1930-06-24 1931-06-23 Improvements in and relating to measuring electric current

Country Status (1)

Country Link
GB (1) GB390128A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE750556C (en) * 1936-09-09 1945-01-24 Moving coil measuring device in connection with dry rectifier and converter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE750556C (en) * 1936-09-09 1945-01-24 Moving coil measuring device in connection with dry rectifier and converter

Similar Documents

Publication Publication Date Title
GB390128A (en) Improvements in and relating to measuring electric current
GB451094A (en) Improvements in apparatus for the measurement of self-inductance
GB404498A (en) Improvements in and relating to apparatus for measuring alternating electric current
Park et al. Standard electrodynamic wattmeter and ac-dc transfer instrument
GB352867A (en) Improvements in or relating to apparatus with rotating coil system and dry plate rectifiers for measuring alternating current and voltage
GB303515A (en)
GB299388A (en) Improvements in or relating to magnetic sclerometers
GB479993A (en) Improvements in or relating to the measurement of the modulation of an aerial current
GB390800A (en) Improvements in and relating to protective apparatus for electric circuits
US2029355A (en) Electric meter
GB367813A (en) Improvements relating to measuring and like apparatus for electric high potential circuits
GB258248A (en) Improvements relating to flow measuring apparatus
GB516036A (en) Improvements in or relating to measuring arrangements for high frequency currents
GB385982A (en) Improvements in and relating to the measurement of alternating currents
GB425794A (en) Universal instrument for direct and alternating current with dry rectifier
GB475687A (en) Improvements in and relating to ammeters for high frequency alternating currents
GB369921A (en) Electric moving-iron quotient measuring instrument
GB387023A (en) Improvements in or relating to the protection of electrical apparatus against abnormal currents
GB504468A (en) Improvements in or relating to apparatus for measuring the flow of gases
GB376227A (en) A voltmeter and a process for its adjustment
GB420819A (en) Improvements in and relating to electric measuring instruments
GB314929A (en) Improvements in or relating to the determination or measurement of voltage
GB247424A (en) Testing and calibrating apparatus for electric meters
GB401150A (en) Improvements in and relating to electrical means for indicating measured values
GB761525A (en) A circuit arrangement for an oscillograph tube