91-9208000092
19th Kilometer Stone, Sultanpur Road,
Lucknow-Uttar Pradesh
AKTU Code :: 423 | BTE Code :: 269
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Electromechanical Energy Conversion Laboratory: The purpose of the Electromechanical Energy Conversion Laboratory is to conduct certain standard performance tests on machines and transformers to acquire familiarity with dynamic electrical machinery and transformers, measuring instruments, accessories and to build the confidence of working in an electrical environment. This lab is also equipped with a 60 Amperes rectifier, which is used to convert AC into DC Voltage.

Hopkinsons Test: It is designed to demonstrate the fundamental concepts and also facilitates easy learning about the various losses of DC Machine. Both the Machines are flexibly coupled and mounted on a M.S channel Base acts as a Motor Generator set. By adjusting their excitations both of them can be simultaneously loaded (to any extent) where one machine (motoring) feeds mechanical power to the other machine (generating), while the generating machine feeds electrical power to the motoring machine.

Loading of Alternator : An alternator is an electro mechanical device that converts mechanical energy to electrical energy in the form of alternating current. Most alternators use a rotating magnetic field with a stationary armature but occasionally, a rotating armature is used with a stationary magnetic field. An alternator that uses a permanent magnet for its magnetic field is called a magneto.

Loading of DC Generator : A D.C. generator is an energy converter. Mechanical power input received from a prime mover (D.C. motor in this case) is converted electromagnetically into electrical energy. This electrical energy can be changed into heat as is done by connecting load resistors across its armature terminals.

Synchronization of Alternator: The frequency of a large electric power  system is established by the speed of rotation of alternators all connected by tie-lines in the total network. The collective inertia and power of these generators is so great that there is no single load or disturbance which would be large enough to change their speed of rotation. The frequency of an electric system is  remarkably stable. An alternator can only deliver power to an existing electric power system if it oper­ates at the same frequency as the system.

Testing of DC Motor: The objective of this experiment is to conduct performance tests on AC and DC motors. This is accomplished by deter mining the efficiencies of an AC motor and a DC motor when operating under the assigned conditions. A power supply is connected to a SCR (silicon-controlled rectifier) which controls the input voltage to the DC motor.

Testing of Induction Motor: This experiment demonstrates the performance of squirrel-cage induction motors and the method for deriving electrical equivalent circuits from test data.

Transformer Ratio Testing: Mainly two types of transformer testing are done at manufacturer premises – type test of transformer and routine test of transformer. In addition to that some transformer tests are also carried out at the consumer site before commissioning and also periodically in regular & emergency basis through out its service life.

Power Measurement by Wattmeter: Electric power is measured by means of a wattmeter. This instrument is of the electrodynamic type. The actuating force of a wattmeter comes from the field of its current coil and the field of its potential coil.

 

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