ELCB-Protection of Leakage currents Using ELCB:
ELCB- Earth Leakage Circuit Breaker: How to protect ourselves if we accidentally touch the live metallic body? For example, consider an Induction motor. If we observe, the body of the… Read more »
Category: Protection
Ground Fault Protection-Restricted versus Unrestricted Methods
Ground fault protection for a power system network provides in two ways. They are Restricted Ground fault and Unrestricted Ground Fault Protection methods. Let’s see briefly what Ground fault protection… Read more »
Electrical Short Circuit Preventive Measures:
After a long time if it is needed to restart any Industries, Large Commercial buildings which involve heavy electrical loads, in their substations the following short circuit preventive measures need… Read more »
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 »
Stator Earth Fault Protection-Generator:
Why Stator Earth Fault Protection is required for a Generator? Nowadays, the capacity of generators increases by more than 500 MW. The protection of the generator is crucial to reduce… 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 »