Surge Diverter | Lightning Arrester Types: The earthing screen and ground wires can well protect the electrical system against direct lightning strokes but they fail to provide protection against travelling…
High Voltage Testing of Surge Arrester: In modern practices, surge arrester or lightning arresters are the most reliable apparatus to protect the power system against transient voltages due to lightning…
Switching Surges in Transmission Line: Till the time when the transmission voltages were about 220 kV and below, over-voltages due to lightning were of very high order and overvoltages generated…
Types of Surge Absorber: The travelling waves set up on the transmission lines by the surges may reach the terminals apparatus and cause damage to it. The amount of damage…
Protection and Switchgear Interview Questions and Answers: Following are the below Protection and Switchgear Interview Questions and Answers, Protection and Switchgear Important Questions and Answers 1. Mention the essential features…
What is Harmonic Suppressor? Harmonic suppressor is an iron-cored reactor and is used in the neutral ground connection of a generator so that third harmonic currents are reduced to safe…
Protection against Over voltages due to Lightning Interview Questions and Answers: 1. What is meant by voltage surge ? Ans. By voltage surge is meant any sudden excessive rise in…
Important Questions of Overvoltage Protection: 1. What is a voltage surge ? Draw a typical lightning voltage surge. 2. Discuss the causes of overvoltages. 3. What is lightning ? Describe…