TECHNIQUES FOR ONLINE DETECTION OF SHORTS IN TURBINE GENERATOR ROTOR

CAUSES FOR SHORTED TURNS
COIL FORESHORTENING
END-STRAP ELONGATION
FOREIGN MATERIAL CONTAMINATION
BLOCKING PROBLEMS

1.COIL FORESHORTENING
BODY CU CANT EXPAND FREELY
MINIMISE BY USING MATERIALS WITH
SUFFICIENT YIELD STRENGTHS

WHY DETECTION IS IMPORTANT
ROTOR UNBALANCE
VIBRATION
HIGHER FIELD CURRENT IS REQUIRED
HIGHER TEMPERATURE WILL RESULT
DIMINISHED CAPACITY

COMPARISON[/ ....etc

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hi, i m a student & i need the simulink model for wind turbine based on pmsg so plz sent me the mdl file. md id is [email protected] ....etc

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could you send ppt for online detection of shorts in field
could you send the online detection of shorts in field ppt ....etc

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Investment Casting a Turbine Rotor

presented by:
Tejas Jadhav

Guided by-
Prof. P.G.Kulkarni

abstract:-

Investment casting is an industrial process based on lost-wax casting. Investment casting is an advanced metal forming process used to produce metal parts in high quality, functionality and cost-effectiveness. Lost wax casting process is a one-to-one process in which one disposable pattern produces one metal part. When combined with modern production knowledge a ....etc

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hello,i am final year student of electrical and electronics engineering
i want to do a mini project on technique for on-line detection of shorts in fields of turbine generator rotor.
what are the shorts and how they occur in turbine generator rotor.
and how to apply this technique , where we can apply this technique,and what are the tools used in this project.
so mail me the complete details of this topic to do as a project as soon as possible ....etc

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The History and State of the Art of
Variable-Speed wind Turbine
Technology

ABSTRACT
Early wind turbines used for performing mechanical work (pumping, grinding and cutting) optimized aerodynamics by being allowed to run at variable speed. Some of the earliest DC electric wind turbines were allowed to run at variable speed. With the advent of gridconnected AC turbines, rotational speeds were limited in order to control the wind turbine AC frequency output to equal the grid frequency. With the advent of sem ....etc

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Dual rotor wind turbine
This article describes a a dual rotor wind turbine that is efficient in capturing kinetic energy from wind.
A dual rotor wind turbine includes the following parts :
-a rotatable drive shaft
-a first rotor assembly connected to the drive shaft
-a second independently-rotating rotor assembly coupled to the drive shaft
-, a first stage generator coupled to the drive shaft
-a second stage generator operatively connected to the second rotor assembly
-a housing to keep the turbines
-, a rotary base
-a tail
....etc

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GENERATOR FIELD WINDING SHORTED TURN DETECTION TECHNOLOGY

EFFECTS OF SHORTED TURNS IN ROTOR WINDINGS

The impact of operating a round rotor generator with rotor winding shorted turns depends upon many factors1. If the percentage of total turns shorted out is small, the generator may be able to run at rated load for years without further problems. However, larger shorted turn percentages can cause operating conditions that may limit unit loads. If the proble ....etc

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A technique for on-line detection of incipient faults in the windings of turbine - generator rotors has been developed based on the twin signal sensing method. To detect the developing shorts in any winding, two identical pulses are applied to both ends f the winding and are reflected back .Any abnormality in the winding results in the applied signals being reflected through nonsymmetrical circuits. The difference between the reflected signals are amplified and used as signature signal for further processing. This paper describes the developmen ....etc

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to get information about the topic online detection of shorts in the field of turbine generator rotor related topic refer the page link bellow

http://seminarsprojects.net/Thread-technique-for-online-detection-of-shorts-in-fields-of-turbine-generator-rotor?pid=1046&mode=threaded ....etc

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