Nature and causes of faults

TRANSFORMER PROTECTION

NATURE & EFFECT OF TRANSFRMER FAULTS

Zones and types of Protection system

Electromagnetic Relay

Impedance Relay

Definition of Torque

Over current and earth fault protection

Directional Over Current Relays

Distance relay

Static relays

Under Frequency | Negative Sequence Relay

Current Transformers(CT)s and Potential Transformer(PT)s

Generator protection

Protection of bus bars

Phase Comparators

Block Diagram of an Electrical Drives

Long distance power transmission

Formation of arc during circuit breaking

Restriking voltage and recovery voltage

Rate of rise of recovery voltage

Resistance switching

current chopping

Rating of Circuit Breaker

Air blast circuit breaker

Oil circuit breakers

SF6 circuit breaker

vacuum circuit breakers

Testing of circuit breakers

Dynamics of Motor Load System

Steady State Stability