Overcurrent relay operates when load current exceeds pre-set value i.e. pick up value. Transmission lines, distribution lines, large power equipment […]
A radial feeder fed from one end protected by overcurrent relay, fails to maintain uninterrupted supply when circuit breaker near
Definition Directional feature is realized by comparing the direction of flow of line current with reference to the bus voltage
Introduction Power Transmission/Distribution system i.e. radial feeders uses overcurrent protection scheme. Feeder is divided in two or more section and
Definition A Electrical contactor is an electrical device which is used for switching an electrical circuit on or off.A contactor
Negative phase sequence protection of induction motor In case of open circuit fault developed at supply terminal or one pole
Short circuit protection of induction motor Short circuit in induction motor occurs either due to winding insulation failure or blocking
Faults in induction motor Small motors i.e. few HP and up to 415 V are protected by starters with inbuilt
What is corona ? At higher voltages, the localized high electric fields ionize the air surrounding the surface of the
There are a Transformer and an induction machine. Those two have the same supply. For which device the load current
Definition The Power Factor (P.F.) is a ratio of the real power that is used to do work and the
Full name of SCADA is Supervisory Control and Data Acquisition (SCADA). Why Power system automation required? To maintain a state
Step for carried out estimate in Home wiring Wiring layout: Prepare building plan on a suitable scale and mark electrical
Circuit breaker play vital role in Home and industries for protection of human and electrical device. Different types of Circuit
11kV Vacuum Circuit Breaker (VCB) Panel Design It’s metal parts divided into below comparnmet: Circuit breaker compartment. Busbar compartment. Cable/C.T.
Solar panel testing is important for take proper output power.For maximum output from solar panel, different types of parameter testing
Key action taken while transformer trip in Buchholz The Buchholz relay has two oil-filled chambers with floats and relays arranged
Full name of PRV and OSR Full name of PRV is Pressure relief valve Full name of OSR is Oil
Types of maintenance Breakdown maintenance As the name implies the maintenance is carried out when the equipment fails.For costly equipment
Introduction Electricity is now becoming the 4th basic necessity of the mankind after food, clothes & shelter. Its demand/consumption is
Introduction of DC Machines The DC machine can be classified into two types namely DC motors as well as DC
Why single-phase induction motors are not self-started? Single phase induction motor has single phase distributed winding in stator and a
Introduction Heat plays an important role in everyday life. All heating requirements in domestic purposes such as cooking, room heater,
Definition Hybrid Solar PV-TEG system involves combining a PV cell with a thermo-electric generator (TEG) to form hybrid PV-TEG systems,
Definition Wireless Laser Power Transmission is electrical power transmission technique in which power transmit through laser beam.Laser beam emission by
What is Power Quality? Power quality or Quality electricity is characterized by: Stable AC voltages at near nominal values and
Power transformers play a crucial role in electrical systems, ensuring efficient voltage regulation and power distribution. To ensure their reliability
Miniature Circuit Breakers (MCB) are essential components in electrical systems, designed to protect circuits from overloads and short circuits. However,
Transformers are vital components in electrical systems, responsible for stepping up or down voltages to facilitate efficient power transmission. To
Transformers are critical components in electrical systems, responsible for stepping up or down voltages to facilitate efficient power transmission and
