selectivity

Discrimination & Selectivity Studies What is a discrimination study? A discrimination study in an electrical system is an analysis aimed at ensuring that protective devices (such as circuit breakers, fuses, and protection relays) operate in a coordinated manner. The main objective of this engineering...

Cascading and selectivity are two important concepts in designing power system protection and back-up. The principles of cascading and selectivity ensure systems’ reliability, protection, and cost-effectiveness while operating under a variety of fault conditions. Selectivity (Discrimination) Selectivity, or discrimination, is essential to ensure the...