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GB1519787A - Apparatus for metering electrical energy - Google Patents

Apparatus for metering electrical energy

Info

Publication number
GB1519787A
GB1519787A GB3702275A GB3702275A GB1519787A GB 1519787 A GB1519787 A GB 1519787A GB 3702275 A GB3702275 A GB 3702275A GB 3702275 A GB3702275 A GB 3702275A GB 1519787 A GB1519787 A GB 1519787A
Authority
GB
United Kingdom
Prior art keywords
currents
power
sept
live
electrical energy
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
GB3702275A
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
Priority claimed from US05/505,798 external-priority patent/US3961257A/en
Priority claimed from US05/521,299 external-priority patent/US3934198A/en
Application filed by General Electric Co filed Critical General Electric Co
Publication of GB1519787A publication Critical patent/GB1519787A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/127—Arrangements for measuring electric power or power factor by using pulse modulation
    • G01R21/1271—Measuring real or reactive component, measuring apparent energy
    • G01R21/1273—Measuring real component

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

1519787 Measuring electrical power GENERAL ELECTRIC CO 9 Sept 1975 [13 Sept 1974 6 Nov 1974] 37022/75 Heading G1U In a single-phase, three-wire power system, "live" 11, 13 and neutral 12, power is measured by multiplying the currents in the two "live" wires by the voltage thereacross, in a pulse width-andamplitude modulator. In Fig. 1, where the loads Z 1 , Z 2 have power factors approximately equal, the currents are summed in a transformer 17 and fed to a multiplier of the type described in Specifications 1474236 and 1477207 (Division G1). Where the power factors are different, the currents are multiplied independently and then combined as in the above Specifications.
GB3702275A 1974-09-13 1975-09-09 Apparatus for metering electrical energy Expired GB1519787A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/505,798 US3961257A (en) 1974-09-13 1974-09-13 Single phase 3-wire electronic electrical energy meter
US05/521,299 US3934198A (en) 1974-11-06 1974-11-06 Multi-wire electronic kWh meter

Publications (1)

Publication Number Publication Date
GB1519787A true GB1519787A (en) 1978-08-02

Family

ID=27055260

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3702275A Expired GB1519787A (en) 1974-09-13 1975-09-09 Apparatus for metering electrical energy

Country Status (5)

Country Link
JP (1) JPS5154470A (en)
CH (1) CH598607A5 (en)
DE (1) DE2539981A1 (en)
FR (1) FR2284885A1 (en)
GB (1) GB1519787A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2426269A1 (en) * 1978-05-15 1979-12-14 Gen Electric Co Ltd ELECTRICAL MEASURING DEVICE WITH MAGNETO-ELECTRIC DEVICE
AU570960B2 (en) * 1978-07-11 1988-03-31 Westinghouse Electric Corporation Electric energy meter with mutual inductance current transducer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57146121U (en) * 1981-03-06 1982-09-14

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2426269A1 (en) * 1978-05-15 1979-12-14 Gen Electric Co Ltd ELECTRICAL MEASURING DEVICE WITH MAGNETO-ELECTRIC DEVICE
AU570960B2 (en) * 1978-07-11 1988-03-31 Westinghouse Electric Corporation Electric energy meter with mutual inductance current transducer

Also Published As

Publication number Publication date
FR2284885A1 (en) 1976-04-09
FR2284885B1 (en) 1979-06-22
JPS5154470A (en) 1976-05-13
DE2539981A1 (en) 1976-04-01
CH598607A5 (en) 1978-05-12

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee