What is Active Filters and types of active filters: Active Filters is a circuit that is designed to pass a specified band frequencies while attenuating all the signals outside that band. It is…
Harmonic Restraint Differential Relay for Transformer Protection: The operation of the relays because of magnetising inrush current can be avoided by using kick fuses across the relay coils or using…
Negative Sequence Protection of Generator against Unbalanced Loads: If, owing to a fault, there is an imbalance in the three-phase stator currents, double frequency currents are induced in the rotor…
Power from Renewable Energy Articles: Hydel Power Plant – Definition, Working Principle and Advantages: Power of water – Hydel Power Plant is a clean and cheap source of energy. The…
Rectifiers Articles: What is Surge Current? – Definition and Workings: Before switching on of power supply, the filter capacitor is uncharged . At the instant the power supply is switched…
Power Converters Articles: What is a Power Converter? Solid-state power converter are employed for obtaining the appropriate form of electrical energy such as direct current or adjustable-frequency alternating current (required…
Non Linear Wave Shaping Articles: What is Clipper Circuit? – Definition and Classification: Clipper Circuit is one which controls the shape of the waveform by removing or “clipping” off an…
Modulation and Demodulation Articles: Basic Block Diagram of Communication System: The Basic Block Diagram of Communication System is shown in Fig. 22.1. The essential components of a communication system are…