Tag: power protection

Essential Qualities of Protection Systems

Essential Qualities of Protection Systems: Every Protection Systems which isolates a faulty element is required to satisfy four basic requirements: reliability; selectivity; fastness of operation; and discrimination. Without reliability and selectivity the protection would be rendered largely ineffective and could even become a liability. Reliability: Reliability is a qualitative term. Quantitatively it can be expressed […]

Basic Ideas of Protection Relay

Basic Ideas of Protection Relay: Basic Ideas of Protection Relay should ensure the availability of electrical energy without interruption to every load connected to the system. When the electric power supply is extended to remote villages the power system would consist of several thousand kilometres of distribution lines. The high voltage transmission lines carrying bulk […]