Protection Schemes for Electrical Power System

Protection Schemes for Electrical Power System

Types of Sub

Objectives of Power System Protection

Protection Zones

  • Generators and generator–transformer units
  • Transformers
  • Buses
  • Lines (transmission, sub-transmission, and distribution)
  • Utilization equipment (motors, static loads, or other)
  • Capacitor or reactor banks (when separately protected).

Protection Devices and Components

Fuse

Instrument Transformer

Relay

Circuit Breaker

Batteries

ESD Protection Device

Surge Protection Device

90% OFF — Power System Protection Fundamentals

Overcurrent Protection Scheme

  1. Instantaneous OC Relay
  2. Definite Time OC Relay
  3. Inverse Time OC Relay

Differential Protection Scheme

Distance Protection Scheme

Directional Protection Scheme

Comparison Summary for all Protection Schemes:

About The Author

--

--

Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store
AllumiaX Engineering

AllumiaX Engineering

Leaders in Industrial & Commercial Power Systems Engineering