PSM and TMS Settings Calculation of a Relay:
PSM and TMS settings that is Plug Setting Multiplier and Time Multiplier Setting are the settings of a relay used to specify its tripping limits. To understand this concept easily,… Read more »
Category: Protection
Stator Earth Fault Protection-Generator:
Why Stator Earth Fault Protection is required for Generator? Nowadays, the capacity of generators increases more than 500 MW. Protection of generator is crucial to reduce the outage time. Stator… Read more »
Auto Changeover Scheme:
Auto Changeover Scheme Introduction: In this post the Auto Changeover Scheme for two incomers and one Bus-coupler system is explained. In Industries for distribution of electrical power with reliable supply… Read more »
High Impedance Restricted Earth Fault Protection: [64H]
In this post we are going to see, how the High Impedance Restricted Earth fault protection scheme works by using Metrosil and Stabilizing Resistors. Why REF protection is required while… Read more »
Practical Working of Vacuum Circuit Breaker
In this post we are going to learn the practical working of vacuum circuit breaker [VCB] in detail. Vacuum Circuit breaker is used in medium voltage Switchgear for performing switching… Read more »
How to Trace out DC Earth Fault Using Multimeter?
DC Earth fault need to identify and remove as early as possible to avoid tripping of protection circuits. DC Earth faults are frequently occurring on FCBC Charger, they should be… Read more »
Oil Surge Relay [OSR] of Transformer:
Oil Surge Relay-OSR is one of the auxiliary equipment of oil immersed type transformer. It is mainly used to limit the damage to the on load tap changer in case… Read more »
Single Phasing of Three Phase Induction Motor
Electrical Motor is an important component of an industry. Squirrel cage induction motor is most widely used in power stations and industries. To protect the motor from different faults conditions… Read more »
PLC-Programmable Logic Controllers
Need of Programmable Logic Controllers: Programmable logic controllers are solid state system designated to perform logic functions previously accomplished by components such as electromechanical relays, drum switches, Mechanical timers/counters etc…. Read more »