Single phase meters, Electrical Engineering

Single Phase Meters

Single phase meters are commonly rated for 240 V AC supply; the current ratings are 5/10, 10/20, 2.5/10 or 5/20 A or are for direct connection to the mains. They begin registration along with small load of about 6 W and record up to 4800 W. The major feature of a single-phase meter (electromechanical induction type) is its simplicity, compactness and robust design. It comprises a potential coil and a current coil. The potential coil is fitted on the center limb of an E shaped electro-magnet and linked across the supply mains.

Same, the current coil consisting of a few turns of heavy gauge copper wire is wound on two limbs of a U shaped electro-magnet. The two fluxes, produced through the voltage (pressure or potential) coil and current coil, set up a mechanical torque on the non-magnetic aluminium disc (that is located among the 2 coils) causing it to rotate. A brake magnet of C shaped alloy steel is given to control the movement or rotation of the disc set up through two fluxes. The disc rotates through the narrow air gap of the C shaped magnet and eddy currents are set up, that interacts along with the field and exerts braking effect.

Posted Date: 2/6/2013 7:13:07 AM | Location : United States







Related Discussions:- Single phase meters, Assignment Help, Ask Question on Single phase meters, Get Answer, Expert's Help, Single phase meters Discussions

Write discussion on Single phase meters
Your posts are moderated
Related Questions
why is delay line used in vertical deflection on systems of CRO?

(1) An argon ion laser, emitting light at a wavelength of 488nm with a beam divergence of 150 firad, is used to illuminate the moon. (i) Assuming the earth-to-moon distance is 3

Gis for Distribution Network Management: You are well aware of the problems facing the distribution utilities to meet the day-to-day requirements of the power consumers, like


Dissemination of Learning - KPI Management has initiated a program, consequently invested a considerable amount of resources and learnt a lesson too. This learning now needs t

1. An analog information signal, whose maximum frequency is 6000Hz, is to be transmitted using a PCM system. The quantization error must not exceed the 1 % of the peak-to- peak an

Q. Counting to moduli other than 2 n is a frequent requirement, the most common being to count through the binary-coded decimal (BCD) 8421 sequence. All that is required is a four

The method by which electrical signals convey information has been described. Systems components have been selected and interfaced to enable a chosen system to perform a desired o

Q. Assuming the diode to obey I = IS (e V/0.026 -1), calculate the ratio V/I for an ideal diode with I S = 10 -13 A for the applied voltages of -2,-0.5, 0.3, 0.5, 0.7, 1.0, and

What is XMS? XMS: The memory system is splits in three major parts as: system area, XMS (extended memory system) and TPA (transient program area). The kind of microprocessor in