Star-delta starters are a popular method for starting electric motors. They provide a number of benefits and can be used in a variety of applications. In this article, we will explore the advantages of using a star-delta starter for motor control, as well as some of the applications in which
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Electrical engineering is a field that has revolutionized the world we live in, from powering our homes to enabling us to communicate with anyone in the world at any time. With the increasing demand for sustainable energy and the rapid pace of technological advancements, the field of electrical engineering is
I) PRIMARY SENSING ELEMENT This is the element that first receives energy from the measured medium and procedures an output depending on some way on the measured quantity (measured). The output is some physical variable e.g. displacement or voltage. An instrument always extract some energy from the measured medium. The
Resistive Load Resistive loads can be purely resistive or of the tungsten-heater load type. A resistive load that has no heating element is the easiest for a switch to handle, and the switch’s rating is based on this type of load. A resistive load is one in which 100% of
A structural design project may be divided into three phases, i.e. planning, design and construction. Planning: This phase involves consideration of the various requirements and factors affecting the general layout and dimensions of the structure and results in the choice of one or perhaps several alternative types of structure, which
The Hipot Test (Dielectric Voltage Withstand) The Hipot test is the most common type of safety test. This test is designed to stress a product’s insulation beyond what it would encounter during normal use. The reasoning behind this test is that if the insulation can withstand high voltage for short
The LC and RC oscillators have their own limitations. The major problem in such circuits is that their operating frequency does not remain strictly constant. There are two principal reasons for it viz., As the circuit operates, it will warm up. Consequently, the values of resistors and inductors, which are
An electronic device that generates sinusoidal oscillations of desired frequency is known as a sinusoidal oscillator. Oscillator does not create energy, but merely acts as an energy converter. It receives DC energy and changes it into AC energy of desired frequency. The frequency of oscillations depends upon the constants of
A weld joint refers to how the parts to be joined are assembled prior to welding. There are five basic types of joints used in welding which are Butt, Lap, Corner, T & Edge. The metal to be joined is called the base metal. If the part to be welded
POOR TRANSMISSION EFFICIENCY Losses in all power system elements from the power station generator to the utilization devices increase due to reactive power drawn by the loads, thereby reducing transmission efficiency. POOR VOLTAGE REGULATION Due to the reactive power flow in the lines, the voltage drop in the lines increases
