Slip ring induction motors, also known as wound rotor induction motors, offer severaladvantages and disadvantages compared to squirrel cage induction motors. Thesemotors have unique characteristics that make them suitable for specific applications. Inthis article, we will explore the Advantages and…
The procedure of connecting an alternator to the infinite power grid or with a common bus to which the number of other generators are already connected in parallel is known as synchronizing of the alternator. Here we are going to…
Autotransformer starter working pdf The squirrel cage induction motor started on full line voltage using D O L starter as a starting method draws a very large starting current which can damage motor winding and also create a current surge on the power system.…
What Is Buchholz Relay? Buchholz relay is a mechanically operated relay that is used to protect the transformer from internal faults that occur inside the transformer tank like an inter-turn fault. Buchholz relay is an oil and gas-operated device. The…
Relays are integral components in modern electrical systems, acting as electronic switches that manage high-voltage circuits with low-voltage signals. Understanding their construction and operation is essential for anyone working with these devices. Basics of Relays Relays function as electronic switches,…
Overload relay is an important component in protecting motors from electrical overloads. By monitoring the current flow to motors, these devices prevent damage that could affect motor performance and longevity. This article explores the principles, their types, applications, and their…
SF6 circuit breaker uses sulfur hexafluoride gas as an arc quenching medium. SF6 gas is used because it has high dielectric strength which acts as a good arc-quenching medium. SF6 is an electro-negative gas and has a high capacity to…
The star and delta connections are two common types of connections used in the winding of three-phase motor. For star connection or delta connection of winding, six wires or leads of the motor winding must be accessible. 3-phase motors are…
Auto transformer is a transformer in which part of the winding is common to both the primary winding circuit and a secondary winding. In normal two winding transformers, primary and secondary winding are electrically isolated but in the case of an autotransformer,…
Transformer oil testing is a crucial part of transformer maintenance, as the oil serves as electrical insulation between the winding and tank and acts as a cooling agent. Over time, the oil can become contaminated, which can degrade its insulating…
