Actual Loading Method

This method is employed commonly for testing of single phase meters within laboratory. On a meter testing bench that is equipped along with several taps to facilitate meter testing at variant load conditions. The load is provided through standard resistance or lamps obviously power factor is unity.  Load adjustments are completed in steps of 1/10th of full load at unity power factor. It is significant to note in this connection in which consumer's power factor varies from 0.5 to unity (or 0.85). Thus, meter must be calibrated at 0.5 PF. To achieve this condition, the current coil is energized through R phase and voltage coil through Y phase and the polarity of pressure coil is reversed. Under these conditions, PF becomes 0.5 since of 120 degree phase shift among voltage and current vectors.

Posted Date: 2/6/2013 7:59:37 AM | Location : United States

Ask an Expert

Related Discussions:- Actual loading method, Assignment Help, Ask Question on Actual loading method, Get Answer, Expert's Help, Actual loading method Discussions

Write discussion on Actual loading method
Your posts are moderated

Write your message here..

Related Questions

OSI Layers, Data transfer code for OSI layers in matlab? Data transfer code for OSI layers in matlab?

Auxiliary carry fla - registers, Auxiliary Carry Fla - Registers If ca... Auxiliary Carry Fla - Registers If carry  is generated  from D 3   to D 4 in the accumulator after any arithmetical or logical  operations. Auxiliary  carry flag (AC) is set

MR, how to design a single phase distribution circuit from a supply point t... how to design a single phase distribution circuit from a supply point to a load(lights)

What do you mean by dearness allowance, Q. What do you mean by Dearness All... Q. What do you mean by Dearness Allowance? Ans: Dearness Allowance is in the type of compensation for Established increase in the cost of living and comprised of Dearness All

Provide definition of signals, Provide Definition of Signals A continuo... Provide Definition of Signals A continuous-time signal x(t) is a signal that is a function of real number t. For a discrete-time signal x[n], it is a method of discrete time in

Digital transmission on fading multipath channels, Digital Transmission on ... Digital Transmission on Fading Multipath Channels We have discussed thus far digital modulation and demodulation methods for the transmission of information over two types of c

Dc machines, compound generator drawback compound generator drawback

Inverting comparator, what is the graph of inverting comparator,if input vo... what is the graph of inverting comparator,if input voltage less than reference voltage

Show capital asset pricing model, Q. Show Capital asset pricing model? ... Q. Show Capital asset pricing model? This model was developed by the William F Sharpe ( 1990 Nobel prize winner in the economy ) and john linter in 1960. The model attempt to c

compute the cavity , Consider the optical cavity shown below. (... Consider the optical cavity shown below. (a) Compute the photon lifetime. (b) Compute the cavity Q (assume that the wavelength region of interest is 500nm). (c) Su