GB253360A - Means for indicating the efficiency of electrical power units - Google Patents

Means for indicating the efficiency of electrical power units

Info

Publication number
GB253360A
GB253360A GB1570225A GB1570225A GB253360A GB 253360 A GB253360 A GB 253360A GB 1570225 A GB1570225 A GB 1570225A GB 1570225 A GB1570225 A GB 1570225A GB 253360 A GB253360 A GB 253360A
Authority
GB
United Kingdom
Prior art keywords
current
load
circuit
generator
efficiency
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
GB1570225A
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.)
Republic Flow Meters Co
Original Assignee
Republic Flow Meters 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 Republic Flow Meters Co filed Critical Republic Flow Meters Co
Priority to GB1570225A priority Critical patent/GB253360A/en
Publication of GB253360A publication Critical patent/GB253360A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • G01L3/26—Devices for measuring efficiency, i.e. the ratio of power output to power input

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

253,360. Rogers, F. H., (Republic Flow Meters Co.). June 17, 1925. Dynamometers. - In measuring the efficiency of electric power units comprising a steam turbine or other prime mover 10 and an electric generator 11 by means of an indicating instrument having two circuits, the current in one circuit is controlled according to the load output of the unit, and the current in the other circuit is varied inversely as the power supplied to the unit by a U-tube 15 containing a balanced column of mercury 16 controlling the current in the circuit and operated by the differential pressure set up by an orifice 14 in the conduit 13 supplying steam or other power medium to the turbine &c. The mercury may vary a non-inductive resistance 21 through contacts 22, the resistance 21 being in series with the pressure coil 20 of a wattmeter or the moving coil of an electrodynamometer, the current coils 19 or stationary coils being in series with the load 18. In the case of a polyphase generator, one indicating instrument is sufficient if the load is balanced, but, if the load is unbalanced, the number of instruments and resistances is one less than the number of wires leading from the generator.
GB1570225A 1925-06-17 1925-06-17 Means for indicating the efficiency of electrical power units Expired GB253360A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1570225A GB253360A (en) 1925-06-17 1925-06-17 Means for indicating the efficiency of electrical power units

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1570225A GB253360A (en) 1925-06-17 1925-06-17 Means for indicating the efficiency of electrical power units

Publications (1)

Publication Number Publication Date
GB253360A true GB253360A (en) 1926-06-17

Family

ID=10063934

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1570225A Expired GB253360A (en) 1925-06-17 1925-06-17 Means for indicating the efficiency of electrical power units

Country Status (1)

Country Link
GB (1) GB253360A (en)

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