Spot welding is a type of resistance welding process primarily used to join two or more metal sheets by applying pressure and heat generated by an electric current. It is commonly used in the automotive, aerospace, and manufacturing industries for creating strong, reliable joints.
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An HRC (High Rupturing Capacity) fuse is a type of fuse used in electrical systems to provide overcurrent protection. It is designed to handle high fault currents without rupturing the fuse casing or causing an explosion.
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A Buchholz Relay is a gas-actuated safety device used in oil-immersed transformers to detect and protect against internal faults. It operates on the principle of gas accumulation or sudden oil flow caused by electrical faults inside the transformer. It is typically installed in the pipeline connecting the transformer’s main tank and the conservator.
A lightning arrester is a device that provides a low-impedance path to ground for lightning or transient overvoltages, effectively protecting the electrical system from high-voltage surges. It operates by limiting the voltage across its terminals to a safe value and shunting the excess energy to the ground. What is a Lightning Arrester? A lightning arrester,
An Energy Meter, also known as a watt-hour meter, is an electrical device used to measure the amount of electrical energy consumed by a residence, business, or electrically-powered device. The energy is typically measured in kilowatt-hours (kWh), which is the standard billing unit for energy consumption.
Electroplating is the process in which a layer of some metal is deposited for decorative or protective purposes on the articles of other base metal by electrolysis.
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Metallic conductors carry an electric current without any change in their physical and chemical state, except, perhaps, a rise in temperature. However, there are some liquids which can conduct an electric current, but the passage of current through them is always accompanied by a chemical change. Such liquids are known as electrolytes. Various chemical compounds
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When the transformer is on load, the secondary winding is connected with load as in figure (1) and current I2 is flowing through load. Operation of Transformer On load Figure (1) shows a transformer with a load connected across the secondary winding. The load current I2 flowing through the secondary turns sets up its own
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When the transformer is on no-load, the secondary winding is opened as in figure (a) and current I2 is zero. In this condition, the primary winding draws a no-load current ‘I0‘ which has two components i.e., Magnetizing component (Iµ), and Working component (Iw).
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Consider the two winding single-phase transformer shown in figure (1).
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