Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

What is Electric Power Generation ?Power Generation DefinitionThe power system has three main parts: generation, transmission, and distribution. This article focuses on power generation, where one form of energy is converted into electrical energy. Electrical energy is produced from various natural sources.Energy sources are classified into renewable and non-renewable types. Currently, most electrical energy is generated from non-renewable sources like coal, oil, and natural gas.However, non-ren

Economiser DefinitionAn economiser is a mechanical device which is used as a heat exchanger by preheating a fluid to reduce energy consumption. In a steam boiler, it is a heat ex-changer device that heats up fluids or recovers residual heat from the combustion product i.e. flue gases in thermal power plant before being released through the chimney. Flue gases are the combustion exhaust gases produced at power plants consist of mostly nitrogen, carbon dioxide, water vapor, soot carbon monoxide et

Thermal Power Plant DefinitionA thermal power plant uses coal, air, and water to generate electricity based on the Rankine Cycle.A thermal power generating plant works using the Rankine Cycle. It needs three main inputs to produce electricity: coal, air, and water.Coal is used as fuel here because we are going to draw the flow diagram of a coal thermal power generating plant. Coal creates required heat energy by combustion in the furnace.Air is supplied to the furnace to accelerate the combustio

Power System Frequency DefinitionPower system frequency is the rate of change of the phase angle of AC voltage or current, measured in hertz (Hz).Historical InfluenceThe choice of 50 Hz in India and 60 Hz in other regions is based on historical and economic factors, not technical reasons.Advantages of 60 HzA 60 Hz system has more power output and allows for smaller electrical devices but may need more cooling.Advantages of 50 HzA 50 Hz system can support longer transmission distances with lower

What is Mobile Substations ?Mobile Substation DefinitionA mobile substation is a portable power distribution system used for temporary or emergency power supply.ComponentsIncludes transformers, cooling systems, switchgear, metering systems, protection relaying systems, auxiliary power supplies, surge protection, and cable connections.Types of Mobile Substations Compact and modular mobile substations Skid-mounted substations Containerized substations Rail-wagon substationsBenefits Offers mobility

Electrical Substation DefinitionNowadays, the demand for electrical power is growing rapidly. To meet this demand, we need larger power generating stations, which can be hydro-electric, thermal, or atomic. These stations are built in various locations based on resource availability, often far from the areas where power is consumed.Therefore, it’s necessary to transmit power from generating stations to load centers using high-voltage networks. Power is generated at low voltages but transmitted at

Method of EarthingWe connect all the points to be earthed to the earthing grid using corrosion-resistant mild steel rods, buried at least 600 mm below ground. If these rods cross a cable trench, road, underground pipework, or rail track, they should be at least 300 mm below the barrier.We use MS rods for connecting the earth grid below ground level and MS flats above ground. The connection between different earthing points and the earthing grid is called the riser. We use MS flats for the riser

What is an Electrical Isolation Switch?Isolator DefinitionAn isolator in electrical systems is a manually operated mechanical switch that separates a part of the circuit for safe maintenance.A circuit breaker trips the circuit, but its open contacts are not visible from the outside. Therefore, it is unsafe to touch an electrical circuit by just switching off the breaker. For better safety, we need a way to visibly confirm that the circuit is open before touching it. An isolator is a mechanical s

Electrical Power Distribution System DefinitionAn electrical power distribution system is defined as a network that delivers power to individual consumer premises at a lower voltage level.An electrical power distribution system provides power to individual consumer premises. The distribution of electric power to different consumers is transmitted via a much lower voltage level compared to the transmission of power over long distances (i.e. over long transmission lines).The distribution of electr

What is Long Transmission Line?Definition of Long Transmission LineA long transmission line is defined as a transmission line longer than 250 km (150 miles), which needs a different modeling approach.A long transmission line is defined as a transmission line with a length greater than 250 km (150 miles). Unlike short transmission lines and medium transmission lines, long transmission lines need detailed modeling of their distributed parameters along the entire length. This makes calculating the