Control the Speed of DC Shunt Motor ABOVE Rated Speed & Draw the Speed Characteristics

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Experiment No.: 3(A) Experiment Name: Control the Speed of DC Shunt Motor Above Rated Speed & Draw the Speed Characteristics. Objective: To control the speed of a DC Shunt Motor by field control method. To draw the field current vs. speed characteristics. Theory: The flux of a DC motor can be changed by changing the …

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Starting and Reversing of DC Motor

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Experiment No.: 2 Experiment Name: Starting and Reversing of DC Motor. Objective: To start a DC Shunt Motor. To run the motor in forward and reverse direction. Theory: DC Motor Rotation: A simple DC electric motor. When the coil is powered, a magnetic field is generated around the armature. The left side of the armature …

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Plot the O.C.C. of a D. C. Generator & find the Critical Resistance

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Experiment No.: 1 Experiment Name: Plot the O.C.C. of a D. C. Generator & find the Critical Resistance. Objective: To plot open circuit characteristics of a DC shunt generator To find critical resistance from the characteristics curve Theory: In a DC Generator an expression for the voltage generated (E) in the armature winding can be …

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Use Clamp-on meter / digital multi-meter for measurement of AC/DC current, AC/DC voltage

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Experiment No.: 2 Experiment Name: Use of Clamp-on meter / digital multi-meter for measurement of AC/DC current, AC/DC voltage Objective: To measure DC voltage and current To measure AC current by using Clamp-on meter Theory: Multimeter: Multimeter is a versatile compact form of electrical instrument which can measure multirange DC voltage, AC voltage, resistance and …

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Use Kelvin’s double bridge for measurement of low resistance.

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Experiment No.: 1 Experiment Name: Use of Kelvin’s double bridge for measurement of low resistance. Objective: To use Kelvin’s double bridge for measurement of low resistance. Theory: A Kelvin Bridge is a measuring instrument used to measure unknown electrical resistors below 1 ohm. It is specifically designed to measure resistors that are constructed as four …

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Different types of Water Turbines used in Large Hydro Power Plant

1 Comment / Intro to Electric Generation Systems Lab / By

Experiment No.: 1 Experiment Name: Study on different types of Water Turbines used in large hydro power plant Objective: To study Kaplan Turbine To study Francis Turbine To study Pelton Wheel Turbine Theory: Kaplan Turbine: Kaplan Turbine works on the principle of axial flow reaction. In axial flow turbines, the water flows through the runner …

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Characteristics of Zener Diode and Finding the Breakdown Voltage

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Experiment No.: 1 Experiment Name: Plot the characteristics of Zener diode and find the breakdown voltage. Objective: To plot the characteristics of Zener Diode. To find the breakdown voltage. Theory: An ideal P-N Junction diode does not conduct in reverse biased condition. A zener diode conducts excellently even in reverse biased condition. These diodes operate …

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STUDY OF FULLY CONTROLLED FULL WAVE RECTIFIER USING SCR

1 Comment / Power Electronics & Drives / By

Experiment No.: 3 Experiment Name: Study of Fully Controlled Full Wave Rectifier using SCR Objective: To study Fully Controlled Full Wave Rectifier using SCR Theory: The ac input voltage is fed to the input of a power transformer TR which has centre-tapped secondary. Thus, the voltage Vi1 and Vi2 developed across the two halves of the secondary are …

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STUDY OF SERIES INVERTER USING SCR

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Experiment No.: 2 Experiment Name: To Study Series Inverter using SCR Objective: To study the mechanism of working of inverter using SCR. Theory: In series inverter, the commutating elements L and C are connected in series with the load. This constitutes a series RLC resonant circuit. The Two SCRs are used to produce the halves (positive and …

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Testing the Performance of Given UPS

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Experiment No.: 4 Experiment Name: Test the performance of given UPS Objective: To test the performance of given UPS Theory: An uninterruptible power supply or uninterruptible power source (UPS) is an electrical apparatus that provides emergency power to a load when the input power source or mains power fails. A UPS differs from an auxiliary or emergency power system or standby generator in that it …

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