Dianoush Emami obtained his degree in electrical engineering from the University of Southern California. His over 40 years of experience as an electrical engineer has earned him numerous publications and awards, including the IEEE PES Award for the best technical report in 1995. Dianoush Emami is an expert at designing and implementing safe electrical projects that cover high voltage transmissions and electrical grounding systems.
Though generally considered unsafe, ungrounded systems still exist. Ungrounded systems are electrical systems not connected to the ground. However, they use capacitances to connect conductors to the ground, so in a way, they share a connection to the ground. Still, electrical engineers disregard this connection as it plays little role in the system’s function.
Ungrounded systems are advantageous because they do not cause the system to harm itself because of the low current of ground faults. This means that the system can function uninterrupted. Also, there are cheaper as they do not require additional costs for grounding. Additionally, engineers can specially design them to minimize the risk of shock to people.
Ungrounded systems also have disadvantages. One is that it allows excess voltage accumulation as the capacitive current will flow during a fault. The system is also susceptible to transient currents caused by lightning. Furthermore, it is difficult to trace the exact location of a fault in this system, and unresolved faults in one phase may affect other phases.
