Protection Schemes
Hi there, did you ever thought of a backup for your protection from threats ? you may didn't need one,but in the case of power system its a necessity especially when you are handling with heavy equipments.Also its a good practice in the industrial view point. Well, lets dig into it The major protection schemes are as follows(There are many other schemes also for different functions,now stay with basics ) 1.Overcurrent Protection(O/C) With the over current protection we could interrupt the current flowing through the line as it is greater than the preset value. 3 O/C Protection connection diagram here we connected one terminal of ct in star directly and other through the relay(shown as O/L). As there is a rise in the current occurs relay detects it sends trip signal to circuit breaker , resulting in isolation of faulty part . 2. Earth Fault Protection(E/F) Suppose there is a contact with a phase