AIM
To conduct OC, SC and ZPF test on the three phase alternator and to predetermine the regulation of 3 phase alternator by EMF method, MMF method, & ZPF method also to verify by vector diagram.
APPARATUS REQUIRED
PRECAUTION
1. The motor field rheostat should be kept in the minimum resistance position.
2. The alternator field potential divider should be in the minimum voltage position.
3. Initially all switches are in open position.
PROCEDURE
A. OC.Test
1. Note down the name plate details ....etc

[:=Read Full Message Here=:]

i need a inductive type sfcl for the smart grid and the auto transformer and trnsmission lines ....etc

[:=Read Full Message Here=:]

why asa method is superior to zpf method ....etc

[:=Read Full Message Here=:]

Increases in the installed capacity and the interconnection of the transmission networks lead to possibility of
fault currents. Fault currents results from various kinds of high voltage stresses caused by lighting and short circuits
or other system disturbances, which send a surge power through the grid.
One of the usages of superconductors is protecting electronic devices and systems from short circuit .
There are three types of superconductors fault current limiters (SFCL): resistive, inductive and hybrid. Protection of
scheme from cu ....etc

[:=Read Full Message Here=:]

AIM:
To predetermine the regulation of three phase alternator by Potier and ASA methods and also to draw the vector diagrams.
FORMULAE USED:
Percentage regulation = Eo Vrated x 100 (For both POTIER & ASA methods)
Vrated
PRECAUTION:
(i) The motor field rheostat should be kept in the minimum resistance position.
(ii) The Alternator field potential divider should be in the position of minimum potential.
(ii) Initially all switches are in open position.
PROCEDURE FOR BOTH POTIER AND ASA MET ....etc

[:=Read Full Message Here=:]

to get information about the topic resistors used in metro train prototype full report ppt and related topic refer the page link bellow

http://seminarsprojects.net/Thread-metro-rail-prototype ....etc

[:=Read Full Message Here=:]

villard cascade voltage multiplier why used in single battery dual supply ? ....etc

[:=Read Full Message Here=:]

wireless mobile phone charger using inductive coupling

Abstract

A wireless power transfer (WPT) using inductive coupling for mobile phone charger is studied. The project is offer to study and fabricate solar WPT using inductive coupling for mobile phone charger that will give more information about distance is effect for WPT performance and WPT is not much influenced by the presence of hands, books and types of plastics. The components used to build wireless power transfer can be divided into 3 parts components, the transceiver for power tran ....etc

[:=Read Full Message Here=:]

why the spatiotemporal electroencephalograms is used in brain computer? ....etc

[:=Read Full Message Here=:]

This method is also called potier method. In the operation of any alternator, the armature resistance drop and armature leakage reactance drop IXL are actually e.m.f. quantities while the armature reaction is basically m.m.f. quantity. In the synchronous impedance all the quantities are treated as e.m.f. quantities as against this in M.M.F. method all are treated as m.m.f. quantities. Hence in both the methods, we are away from reality.
Note : This method is based on the separation of armature leakage reactance and armature reaction effects. ....etc

[:=Read Full Message Here=:]