Difference between soft starters and VFDs
Variable-frequency Drive The most important difference between soft starters and VFDs is the role they play in motor control. Even though they have a similar principle of operation, they are…
What is Comb Busbar?
Single pole 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 such…
What is ammeter selector switch?
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…)
What is an Electric Circuit?
Two or more circuit components such as power source, resistors, inductors and capacitors when interconnected, it forms an electric circuit. (more…)
Difference between volts and watts
Volts and watts are two of the most common and key terms in the field of Electrical and Electronics Engineering. Most of the times these terms confuse the newbie or…
The direction of electric current
The direction of electric current can be a bit confusing topic. Here we have addressed your query. Hope this article shall be helpful to you in understanding the direction of…
Why are current transformers used in power system?
Why are current transformers used in power system? Protective relays coils and measuring instruments such as an ammeter, watt meter and energy meter are very sensitive devices and cannot be…
What are the basic requirements of a protection system used in a power network or equipment?
The following are the basic requirements of any power system protection system: ReliabilitySimplicitySelectivitySensitivitySpeed of operationEconomy Circuit breaker