In order that protective relay system may perform this function satisfactorily, it should have the following qualities : Selectivity. Speed. Sensitivity.
What is one of the desired functional characteristics of protection system?
The protective system must have ability to detect the smallest possible fault current. The smaller the current that it can detect, the more sensitive it is. One way to improve sensitivity is to determine characteristic signature of a fault. It is unique to the fault type and it does not occur in the normal operation.
What are the characteristics of protection?
What are protected characteristics?
- gender reassignment.
- marriage and civil partnership.
- pregnancy and maternity.
- religion or belief.
What is the feature of protective system?
The objective of a protection scheme is to keep the power system stable by isolating only the components that are under fault, whilst leaving as much of the network as possible still in operation. Thus, protection schemes must apply a very pragmatic and pessimistic approach to clearing system faults.
What are the main features of good protective system?
Consists of mainly power system protection relays like current relays, voltage relays, impedance relays, power relays, frequency relays, etc. based on operating parameter, definite time relays, inverse time relays, stepped relays etc.
What is the main objective of protection?
Ensure that each object is accessed correctly and only by allowed processes.
What is the purpose of protection system?
Primary function of the protective system is to detect and isolate all failed or faulted components as quickly as possible, thereby minimizing the disruption to the remainder of the electric system.