RS20070340A - Procedure and device for measuring mechanical power of direct current motors with independent and parallel excitation - Google Patents

Procedure and device for measuring mechanical power of direct current motors with independent and parallel excitation

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Publication number
RS20070340A
RS20070340A RSP-2007/0340A RSP20070340A RS20070340A RS 20070340 A RS20070340 A RS 20070340A RS P20070340 A RSP20070340 A RS P20070340A RS 20070340 A RS20070340 A RS 20070340A
Authority
RS
Serbia
Prior art keywords
measuring
mechanical power
time
harmonics
independent
Prior art date
Application number
RSP-2007/0340A
Other languages
Serbian (sr)
Inventor
Andreja Todorović
Miroljub Jevtić
Original Assignee
Andreja Todorović
Miroljub Jevtić
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 Andreja Todorović, Miroljub Jevtić filed Critical Andreja Todorović
Priority to RSP-2007/0340A priority Critical patent/RS20070340A/en
Publication of RS20070340A publication Critical patent/RS20070340A/en

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Abstract

Procedure and device for measuring mechanical power (P) of direct current motors with independent and parallel excitation (MJS), is achieved as shown in Figure 1 by coupling brushes (Č) set at the endings of a shaft (V) of a machine rotor, insulated conditioner (IKU) for measuring alternate voltage (u=u(t)) between brushes and other components. Therewith accurately defined is technical problem of measuring mechanical power (P) is solved in details and reliably in a relatively short time and by more positive technical economic effects compared to the known solutions comprised in the state of art. Measuring gives instantaneous value of alternating voltage at the chosen time periods from (10-50) μs which, as a complex period function of time expands into harmonics of a Fourier series, where first of all by determining the predominant harmonics, and then the quotient of that harmonics and the chosen measuring the time (t) during unknown and nominal loading whereby obtained is the frequency of the equivalent of simple periodic sinusoidal function of time for that voltage, and finally according to the equation (11) the required mechanical power (P) of considered engines (MJS).
RSP-2007/0340A 2007-08-09 2007-08-09 Procedure and device for measuring mechanical power of direct current motors with independent and parallel excitation RS20070340A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RSP-2007/0340A RS20070340A (en) 2007-08-09 2007-08-09 Procedure and device for measuring mechanical power of direct current motors with independent and parallel excitation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RSP-2007/0340A RS20070340A (en) 2007-08-09 2007-08-09 Procedure and device for measuring mechanical power of direct current motors with independent and parallel excitation

Publications (1)

Publication Number Publication Date
RS20070340A true RS20070340A (en) 2009-05-06

Family

ID=43778340

Family Applications (1)

Application Number Title Priority Date Filing Date
RSP-2007/0340A RS20070340A (en) 2007-08-09 2007-08-09 Procedure and device for measuring mechanical power of direct current motors with independent and parallel excitation

Country Status (1)

Country Link
RS (1) RS20070340A (en)

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