Electrical Engineering Guides

Power Systems

What is a relay?

What is a relay? Definition: The relay is the device that open or closes the contacts to cause the operation of the other electric control. It detects the intolerable or undesirable condition with an assigned area and gives the commands to the circuit breaker to disconnect the affected area. Thus pr

By Edwiin 04/01, 2025
Power Systems

SF6 leak rate experiment setup

An experiment was carried out to simulate an SF6 gas leak by transferring SF6 gas from one gas bottle to another. The objective of this experiment was to ascertain whether there were any disparities in how each type of transducer tracked an SF6 gas leak. A quartz oscillating density transducer, a pr

By Edwiin 03/31, 2025
Power Systems

What is Valve Type Lightning Arrester？

What is Valve Type Lightning Arrester？ Definition A lightning arrester that consists of single or multiple gaps connected in series with a current - controlling element is known as a lightning arrester. The gap between the electrodes blocks the flow of current through the arrester, except when the v

By Edwiin 03/31, 2025
Power Systems

Dew point online monitoring for SF6 gas Insulated equipments

Traditionally, the moisture level in SF6 gas - insulated equipments was checked by periodically collecting gas samples. However, in recent years, condition monitoring systems equipped with online instrumentation for measuring the dew point of SF6 have become increasingly prevalent. Nowadays, it is q

By Edwiin 03/29, 2025
Power Systems

What is the types of Fuses?

What is the types of Fuses? A fuse is a current - interrupting device. It breaks or opens the circuit by melting its fuse element, thereby isolating the faulty device from the main supply circuit. Fuses are mainly classified into two types based on the input supply voltage: AC fuses and DC fuses. Th

By Edwiin 03/29, 2025
Power Systems

What is Arcing Ground ？

What is Arcing Ground ？ Definition: Arcing ground refers to a surge that arises when the neutral is not earthed. This phenomenon occurs in ungrounded three - phase systems due to the flow of capacitive current. Capacitive current is the current that flows between conductors when a voltage is applied

By Encyclopedia 03/28, 2025
Power Systems

SF6 gas detection thermal camera high voltage substation

One method for detecting SF6 gas leakage in a substation is to use a reliable infrared camera with SF6 gas detection capabilities. This enables the identification of potential leaks during routine maintenance rounds. These new - generation infrared cameras integrate a high - performance thermal imag

By Edwiin 03/28, 2025
Power Systems

Lightning impulse voltage withstand test for circuit breakers

Lightning impulse voltage (LIWL) tests and switching impulse voltage tests are carried out to assess the dielectric stress resulting from transient over - voltages induced by lightning strikes and switching operations respectively. An impulse voltage generator produces a steep - front voltage wavefo

By Edwiin 03/27, 2025
Power Systems

Primary & Backup Protection

Primary Protection Primary protection, also known as main protection, serves as the first - line of defense. It is designed to rapidly and selectively clear faults within the boundaries of the specific circuit section or element it safeguards. Each section of an electrical installation is equipped w

By Edwiin 03/27, 2025
Power Systems

Three phase high power synthetic current injection test methods for circuit breakers

This test just apply to 3 pole operation circuit breakers. As Fig these circuits use a three-phase current source and, generally, two voltage sources. one voltage source provides the TRV for the first pole-to-clear and the other gives the recovery voltage for the second- and third poles-to-clear, in

By Encyclopedia 03/26, 2025
Power Systems

What is Fluxmeter？

What is Fluxmeter？ Definition A flux meter is an instrument designed to measure the magnetic flux of a permanent magnet. It represents an advanced iteration of the ballistic galvanometer, boasting certain advantages. Specifically, the flux meter features low controlling torque and significant electr

By Encyclopedia 03/25, 2025
Power Systems

What is Creeping in Energy Meter？

What is Creeping in Energy Meter？ Definition Creeping in an energy meter is a phenomenon where the aluminium disc rotates continuously when only voltage is applied to the pressure coil and no current flows through the current coil. In essence, it is an error causing the energy meter to consume a min

By Edwiin 03/25, 2025

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

All

What is a relay?

SF6 leak rate experiment setup

What is Valve Type Lightning Arrester？

Dew point online monitoring for SF6 gas Insulated equipments

What is the types of Fuses?

What is Arcing Ground ？

SF6 gas detection thermal camera high voltage substation

Lightning impulse voltage withstand test for circuit breakers

Primary & Backup Protection

Three phase high power synthetic current injection test methods for circuit breakers

What is Fluxmeter？

What is Creeping in Energy Meter？

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