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Surge Impedance Loading (SIL) of AC Transmission Lines

In power transmission systems, the concept of Surge Impedance Loading (SIL) plays an important role in understanding the power transfer capability of transmission lines. It is particularly important in the analysis and design of high-voltage transmission systems used in long-distance …
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Hydrogen Cooling of Alternator

Large power generators used in thermal and hydroelectric power plants produce a huge amount of heat during operation. Efficient cooling is therefore essential to maintain the temperature of the stator and rotor windings within safe limits. One of the most …
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Unity Feedback Control System

In Control Systems, a Unity Feedback System is a closed-loop control system in which the feedback transfer function is equal to unity . In this type of system, the output signal is fed back directly to the input without any …
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Efficiency of a DC Motor

The efficiency of a DC motor is defined as the ratio of mechanical output power to the electrical input power supplied to the motor. It indicates how effectively the motor converts electrical energy into mechanical energy. Efficiency is an important …
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Shunt DC Motor

A DC shunt motor is a type of direct current (DC) motor in which the field winding is connected in parallel (shunt) with the armature winding. Because the field winding is connected directly across the supply voltage, the field current …
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Developed Torque in a DC Motor

The developed torque of a DC motor is the torque produced due to the interaction between the magnetic field of the stator and the current-carrying conductors of the armature. This electromagnetic interaction converts electrical energy into mechanical energy, causing the …
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