Electrical4u

Difference Between Online UPS and OffLine UPS: UPS is a heart of the IT world and UPS is a short form of Uninterrupted power supply....

On Delay Timer and off Delay Timer: Generally, timers are used to control the circuit for certain amount of time. Using timers we can delay...

Why 25kv is used in railway traction system? 25kV is globally accepted voltage level for electric locomotives. The main reason for 25kV voltage used in...

Top 7 Difference Between Contactor And Relay: Relay and contactor are functionally doing same duty, but the major difference between relay and contactor is that,...

Difference Between Isolator and Circuit Breaker The two main difference between isolator and circuit breaker are that an isolator cannot be operated automatically. But Circuit...

Difference Between Multi meter Megger and Series Test lamp: Diagnosing electrical problem is very difficult task without these testing equipment. The three common and most...

Top 10 Electrical Website for Electrical Engineering Students: Now a days searching electrical concept in google is an easiest way of clearing your electrical doubts,...

Submersible Pump Nameplate Details: Submersible pumps are used to drain the water or pumping the water from the underground. The main advantage of submersible pumps...

LT Panel HT panel Shutdown procedure: Electrical panels are used to distribute the electric power to other circuits. Electrical panels contain lot of electrical switchgears...

Difference Between ACB, VCB and SF6 A circuit breaker is a switching device which can open and close a circuit in a small fraction of...