Theory of Electrical Machines
Experiment No.: 2 Experiment Name: Speed Measurement by using Stroboscope Objective: To measure speed by usinh Stroboscope Theory: The primary use for a stroboscope is to stop motion for diagnostic inspection purposes. However, the stroboscope can be used to measure speed. In order to do this, several factors need to be considered. First, the object …
Experiment No. : 3 Experiment Name : Identification of Different Parts of a Single-Phase Transformer Objective : To identify different parts of a single phase Transformer. Theory : Transformer is a electrical device, which can transfer electric power from one circuit to another, without changing it’s frequency. Whenever the primary side of a transformer is …
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Generally, three characteristic curves are considered important for DC motors whichare, (i) Torque vs. armature current, (ii) Speed vs. armature current and (iii) Speed vs. torque.These are explained below for D.C. Series Motor.These characteristics are determined by keeping the following two relations in mind.Ta ∝ ɸ.Ia and N ∝ Eb/ɸThese above equations can be studied …
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