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.
(iii) Ini ....etc

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Introduction:
In this 21st century we required a multi functional system to operate on different platforms, which can access data easily, the main purpose of a Heterogeneous server is to establish a Heterogeneous network that can connect computers and other devices with different operating systems and/or protocols. For example, local area networks (LANs) that connect Microsoft Windows and Linux based personal computers with Apple Macintosh computers are heterogeneous. The word heterogeneous network is also used in ....etc

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information about the al l--->
salient features of e-mail,URL.,contrast,google, yahoo ,Telnet Session,FTP


1. Explain the salient features of e-mail? Explain its working with the help of an example.

Soln: - Electronic mail, or e-mail (and mail) for short, is one of the most popular uses of the Internet. Once you have an e-mail account you can send an electronic message (sort of like a letter) to just about anyone else with an e-mail account so long as you know their e-mail address. The salient features of e-mail are: ....etc

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Optimal Designs and Comparison of the Doubly
Salient Permanent Magnet Machine and
Flux-reversal Machine in Low-speed Applications

Abstract
The subject of this is to optimize the design and to compare
The performances of a low-speed doubly salient permanent magnet machine with
Those of a low-speed flux-reversal machine devoted to direct drive applications. The
Optimization, focused on the maximization of the machines mass-to-torque ratio,
is done by a genetic algorithm combined with the finite-element method (FEM) ....etc

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AIM
To conduct the slip test on three phase alternator and predetermination the regulation through vector diagrams
APPARATUS REQUIRED
PRECAUTION
1. The Motor field Rheostat should be kept in minimum resistance position.
2. The Alternator field should be kept open throughout the experiment.
3. The direction of rotation due to prime mover and due to the Alternator run as the motor should be same.
4. Initially all the switches are kept open
PROCEDURE
1. The name plate details of the motor an ....etc

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THEORY:
The regulation of a 3-phase alternator may be predetermined by conducting the Open Circuit (OC) and the Sort Circuit (SC) tests. The methods employed for determination of regulation are EMF or synchronous impedance method, MMF or Ampere Turns method and the ZPF or Potier triangle method. In this experiment, the EMF and MMF methods are used. The OC and SC graphs are plotted from the two tests. The synchronous impedance is found from the OC test. The regulation is then determined at different power factors by ....etc

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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 ....etc

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SALIENT FEATURES OF 500 MW BOILER



FIRST PASS:
Vertically Downward Expansion at Ring Header (10.250mtr elev.) : 330mm
Horizontal Expansion at Ring Header
(10.250mtr elev.) : 36mm
SECOND PASS :
Vertically Downward Expansion at Ring Header
(44.060mtr elev.) : 174mm
Horizontal Expansion at Ring Header
(44.060mtr elev.) : 58mm


IMPORTANT FEATURES OF 500 MW BOILER



C.C. PUMPS
ORIFICE PLATES IN BOTTOM RING HEADE ....etc

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related information of Automatic voltage regulation of alternator ....etc

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. Automatic voltage regulation of alternator used in UKAI PP ....etc

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