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Title: REGULATION OF THREE PHASE ALTERNATOR BY EMF MMF and ZPF
Page Link: REGULATION OF THREE PHASE ALTERNATOR BY EMF MMF and ZPF -
Posted By: smart paper boy
Created at: Wednesday 10th of August 2011 12:37:21 PM
| difference between mmf and emf methods of find resolution of an alternator,
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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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Title: compressor less thermo emf refrigerator
Page Link: compressor less thermo emf refrigerator -
Posted By: hare krishna
Created at: Wednesday 25th of August 2010 02:14:42 PM
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Title: COMPRESSORLESS THERMO EMF REFRIGERATOR
Page Link: COMPRESSORLESS THERMO EMF REFRIGERATOR -
Posted By: hare krishna
Created at: Thursday 26th of August 2010 02:34:45 PM
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DESIGN OF COMPRESSORLESS THERMO EMF REFRIGERATOR ....etc
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Title: REGULATION OF 3PHASE ALTERNATOR BY EMF AND MMF METHODS
Page Link: REGULATION OF 3PHASE ALTERNATOR BY EMF AND MMF METHODS -
Posted By: smart paper boy
Created at: Friday 29th of July 2011 05:51:20 PM
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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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Title: advantages and disadvantages of mmf method
Page Link: advantages and disadvantages of mmf method -
Posted By:
Created at: Thursday 12th of April 2018 07:19:05 AM
| alternater by using mmf,
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I want ans for this question .plz try to say fast ....etc
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Title: COMPRESSORLESS THERMO EMF REFRIGERATOR
Page Link: COMPRESSORLESS THERMO EMF REFRIGERATOR -
Posted By: hare krishna
Created at: Thursday 26th of August 2010 03:08:17 PM
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design and drawing of COMPRESSORLESS THERMO EMF REFRIGERATOR ....etc
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Title: COMPRESSOR LESS THERMO-EMF REFRIGERATOR
Page Link: COMPRESSOR LESS THERMO-EMF REFRIGERATOR -
Posted By: kck
Created at: Thursday 26th of August 2010 11:47:37 PM
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i want information about COMPRESSOR LESS THERMO-EMF REFRIGERATOR.
How it work? ....etc
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Title: hii iam ramakanth i would like to get details why mmf method is optimistic
Page Link: hii iam ramakanth i would like to get details why mmf method is optimistic -
Posted By:
Created at: Tuesday 08th of August 2017 10:58:48 PM
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HI IAM ramakanth i would like to know why the mmf meathod is optimistic ? and why emf meathod is pesimistic ....etc
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Title: mmf and emf formula
Page Link: mmf and emf formula -
Posted By:
Created at: Friday 26th of October 2012 05:24:37 PM
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Formula for emf and mmf, similarities between emf and mmf and difference ....etc
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Title: why inductive load is used in zpf method
Page Link: why inductive load is used in zpf method -
Posted By:
Created at: Thursday 29th of September 2016 12:22:58 AM
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Why inductive load is used in zpf method ....etc
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