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 low-voltage power distribution and can…

Buchholz relay – Working Principle, Construction and Operation

A Buchholz relay in a transformer is an oil-activated relay, used to sense abnormalities such as short circuits, overheating, and oil leakages inside a transformer. It is a cylindrical object…

Difference between Higher potential and lower potential

Before getting into the topic, we have to keep two points in mind.1. Conventional Current flow. (The way Current is said to flow historically)2. ‎Actual current flow. (The way Current…

Kilovolt ampere to kilowatts (kVA to kW) converter

Kilowatt is the unit of power. It is the product of voltage, ampere, and power factor. It is also called real power. One kilowatt(kW) is equal to a thousand watts(W).…

PLC, DCS, RTU, SCADA and PAC Systems

PLC - Programmable Logic Controller Programmable logic controllers are electronic devices used to control a process. It consists of CPU; Input and output devices, power supply, communication and redundancy units.…

What is meant by stalling of motor?

Motor stalling is a condition in which a motor stops rotating even when there is sufficient voltage at its terminals. This condition occurs when the torque required by the load…

kW to HP converter | Kilowatts to Horsepower converter

Here is a simple kW to HP converter and steps to unit conversion. Kilowatt and horsepower are units of power. Power is nothing but the energy converted per second. Power…

Selection of contactor and overload relay for DOL starter

The below article can guide you through the selection of contactors and overload relays for a three-phase DOL starter and how to optimally size a DOL starter. Data required for…

Types and comparison of induction motor starters

As the name indicates, starters are used to start or stop a motor. It consists of an electromechanical switch and protection devices (overload and/or short-circuit protection). Why should we need…

Horsepower to kilowatts (hp to kw) Converter

Horsepower and kilowatt are two different units of measuring power. Watts is the SI unit of power. It is a well-defined and normally used unit. This is a simple tool…