Difference between MCB and RCBO MCB – Miniature Circuit Breaker and RCBO – Residual Current Circuit Breaker with Overload Protection are circuit protection devices. These devices are commonly used in…
Stalling is a condition at which a motor stops rotating even when there is sufficient voltage at it’s terminals. This condition occurs when the torque required by the load is more than the maximum torque (Breakdown torque) that can be generated by the motor. At this condition, the motor drains the maximum current and the speed comes zero.
Motor Protection Circuit Breakers and Moulded Case Circuit Breaker and are devices used to open and close a circuit manually and interrupt the circuit automatically on the occurrence of faults.…
This is a very common question asked by those who are starting up with transformer science. You may come across the same question during interviews too. (more…)
MCCBs and RCCBs are circuit protection devices with two different application. When the former protect against overload and short circuit, the later protects against Residual currents and electric shock.
Contactors and relays are two closely related terms leading to confusions and misinterpretations most of the times. Both of them are electrically operated switches used for control and switching of…
Variable frequency drives and soft starters are widely used in industrial motor control and pump control. Both of them are semiconductor devices. VFD and soft starters although working on similar…
Single phase Comb Busbar Comb busbar is one of the most basic switch gear instruments. The main purpose of a comb busbar is to distribute power to switch gear components…
Ammeter selector switch is basically a normal three position switch. In large Electrical distribution panels, an ammeter is used to monitor the current through each line. (more…)