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Output voltage at the null position is ideally zero. But because of harmonics in the excitation
voltage and stray capacitance coupling between primary and secondary usually some nonzero voltage exists
at null voltage. This is called residual voltage. If it is less than 1 % of full scale output voltage ( which is the normal
case) it is in the acceptable limits.
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What type of output voltage dose the LVDT have?
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What is meant by residual voltage in a dc generator?
poles are partially magnetized this causes some voltage called residual voltage
What is the residual voltage of a 380Vac 264KW generator?
Residual voltage is the vector sum of all three phase voltages. Ideally this will be zero.
What is characteristics of LVDT?
1.Null Voltage 2.Resolution 3.Linearity 4.Sensitivity 5.Excitation voltage and excitation frequency 6.Dynamic response
Use of LVDT?
You will have to define LVDT as there are about 15 different common usages of the ACRONYM
What is definition of residual voltage?
Net voltage in the Neutral of a three phase electrical system is called residual voltage.
Explain briefly about LVDT with working and neat diagram?
First off, LVDT stands for linear variable differential transformer. The principle of the LVDT is that the physical energy is converted into electrical signals.
What is lvdt?
The linear variable differential transformer (LVDT) is a type of electrical transformer used for measuring linear displacement.
Explain the working principal of LVDT with a suitable diagram?
the physical energy is converted into electrical signal it's the principle of LVDT
How initially voltage build up in an alternator by residual magnetism?
The residual flux will help the phenomenon of changing flux. So that emf generation takes place.
What is residual voltage for DC generator?
This case arises only in series dc generator current should be sent around the poles to magnetize. this current can the source(generator). current is passed through poles if it is loaded. but if it is not loaded current is zero through the field. load voltage should be zero actually.but this dont happen.we use generator frequently.due to this poles are partially magnetized this causes some voltage appear called residual voltageAnswerThere's no such thing as 'residual voltage'; you're confusing it with 'residual magnetism', which exists in the magnetic poles of a self-excited d.c. generator and which enables the build-up of its terminal voltage.
If a selfexcited generator has lost all of its residual magnetism can it build up an output voltage?
yes
