Electrical and Electronics Engineering (EEE)

Electrical Measurements Lab:

Electrical measurements are the methods, devices and calculations used to measure electrical quantities. Measurement of electrical quantities may be done to measure electrical parameters of a system. Using transducers, physical properties such as temperature, pressure, flow, force, and many others can be converted into electrical signals, which can then be conveniently measured and recorded. High-precision laboratory measurements of electrical quantities are used in experiments to determine fundamental physical properties and in the definition of the units for electrical measurements, with precision in some cases on the order of a few parts per million. Less precise measurements are required every day in industrial practice.

Electrical measurements Laboratory presents facilities with the equipment of ac & dc bridges, potentiometers, Energy meters and concepts of calibrating of instruments. This laboratory provides university-level students with a test bed to learn and practice fundamental concepts of electrical measuring instruments.

This laboratory comprises of experiments related to measure quantities like resistance, capacitance, inductance, power factor and energy. This laboratory also facilitates students about to design and analysis which can later be implemented in real-time applications using Real-time Workshop.

Power Electronics Lab:

The power electronics lab enhances the EEE students by providing them the better understanding of the concepts and working of advanced power semiconductor devices and power electronics circuits.

1-phase semi converter and full converter experiments are carried out to understand the conversion of AC supply to DC supply and the variation of average output voltage for different firing angles. R, RC and UJT triggering circuits are done to know how to give and adjust the firing pulse to the SCR so as to make it to conduct. 1-phase AC voltage controller using TRIAC is done to get the variable AC output voltage from fixed AC input voltage. For converting DC to AC, 1-phase series inverter, 1-phase parallel inverter Voltage and current commutated chopper circuits are carried out to comprehend the conversion of fixed DC to variable DC voltage by voltage commutation and current commutation respectively. Circuits and devices used for switching power converters, solid-state motor drives, and power controllers; dc-dc, ac-dc, and dc-ac converters and applications; high-power transistors and magnetic components; design considerations including heat transfer.

Power electronics is a broad area. Experts in the field find a need for knowledge in advanced circuit theory, electric power equipment, electromagnetic design, radiation, semiconductor physics and processing, analog and digital circuit design, control systems, and a tremendous range of sub-areas.

Power Converters Lab:

The main objective of power converters and drives lab is to familiarize the students with latest converters based on power semiconductor devices. This provides the basic practical knowledge in the application of power electronics in electrical drives and machines like thyristorized speed control of DC and AC motors.

The task of a power converter is to process and control the flow of electric energy by supplying voltages and currents in a form that is optimally suited for the user loads. Energy was initially converted in electromechanical converters (mostly rotating machines). Today, with the development and the mass production of power semiconductors, static power converters find applications in numerous domains and especially in particle accelerators. They are smaller and lighter and their static and dynamic performances are better. A static converter is a meshed network of electrical components that acts as a linking, adapting or transforming stage between two sources, generally between a generator and a load

An ideal static converter controls the flow of power between the two sources with 100% efficiency. Power converter design aims at improving the efficiency. But in a first approach and to define basic topologies, it is interesting to assume that no loss occurs in the converter process of a power converter. With this hypothesis, the basic elements are of two types: – non-linear elements, mainly electronic switches: semiconductors used in commutation mode linear reactive elements: capacitors, inductances and mutual inductances or transformers. These reactive components are used for intermediate energy storage but also for voltage and current filtering.