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
In this design, there are 24 line finders. If any of the 100 subscribers has to get access to any of 24 two-motion selectors, it is necessary that every line finder is capable of r

(i) Sketch a fully-labelled electro-pneumatic circuit showing your actuators in the START position and employ metered out speed control with mono-stable 5/2 DCV's having solenoid a

Define permanent magnet A permanent magnet is a piece of ferromagnetic material (like as iron, nickel or cobalt) which has properties of attracting several pieces of these mater

Discuss features and usage of Peripheral Component Interconnect bus. Peripheral Component Interconnect bus has plug as well as play characteristics and the capability to func

Indirect Addressing In this  addressing  mo e also ne  of the  operands is the  stored in the memory. The memory  address of the  operand  is specified  by the  register pair.

A single phase line has an impedance of 8.4 + j11.2 Ω. The line feeds a load consisting of a resistor and an inductor connected in parallel as shown in Figure 1. The load is absorb

Illustrates about the power dissipation management in embedded system? Power Dissipation Management a. Clever real-time programming through Wait and Stop instructions b.

V- I Characteristics When the peak  value of  applied  voltage is less than the break over   voltage  of triac  and no signal  is applied to the triac  it will block  both  pos

Case 2 ( A>B) Suppose XX = 05H ( stored  in A ) And  YY = 02H ( stored  in B). Then carry  flag will  reset by CMP instruction, since  A> B in this  case JNC  will transfer the

Q. Explain working of induction machine rotor? The induction machine rotor may be one of two types: the wound rotor or the squirrel-cage rotor. The wound rotor has a polyphase