EngineersWikis 
Overvoltage protection is essential for safeguarding transformers against voltage surges that exceed their rated voltage levels. Voltage surges can be caused by various factors, such as lightning strikes, switching operations, or system faults. Methods and …
Buchholz relay is a specialized protective device used for transformer protection, particularly for oil-filled transformers. It provides detection and protection against internal faults, such as short circuits between windings or incipient winding faults. Below an …
Differential Protection of Transformer Differential protection widely used and highly effective method for protecting transformers against internal faults. The principle behind differential protection is to compare the current entering the transformer with the current leaving …
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A hydrostatic pressure transmitter , a type of sensor used to measure fluid pressure in various applications, particularly in industrial and process control systems. Based on the hydrostatic principle, hydrostatic pressure transmitter measure the pressure …
The working principle of a magnetic level transmitter is based on the buoyancy principle and the magnetic field interaction between a float and a stationary magnet. It is used for measuring the level of liquids …
Guided wave radar (GWR) level transmitters are electronic devices used for measuring the level of liquids, solids, and slurries in containers or vessels. They employ guided electromagnetic waves to determine the distance between the transmitter …
Capacitance level transmitters are electronic devices used for measuring the level of liquids, solids, or slurries in containers or vessels. They operate based on the principle of capacitance, which is the ability of a capacitor …
Radar level transmitters are electronic devices used to measure the level of liquids, solids, or slurries in containers, tanks, or vessels using radar technology. They utilize electromagnetic waves, typically in the microwave frequency range, to …
Ultrasonic level transmitters are electronic devices used to measure the level of liquids or solids in a container or vessel using ultrasonic sound waves. These transmitters emit ultrasonic pulses and measure the time taken for …