What is Star Delta Starter? A star delta starter is the most commonly used method for the starting of a 3 phase induction motor. In star delta starting an induction motor is connected in through a star connection throughout the starting period. Then once the motor reaches the required speed, the motor is connected in … Read more
Miniature circuit breakers,MCB switch standard electricals installation Symbol used N=Neutral L=Live E=Earth
Two switches to one light wiring multiple
Voltage (an electromotive force or potential difference expressed in volts) is the pressure from an electrical circuit’s power source that pushes charged electrons (current) through a conducting loop, enabling them to do work such as illuminating a light An electric current is a flow of electric charge. Electric charge flows when there is voltage present … Read more
How to calculate electrical units per electrical device and money cost. Most of equipment have there specific input voltage and power rating(230v-150w ,what you should do first, calculating the total power rating of all device. Example Device power rating Television = 150w Fan = 50w Radio = 80w AC = 200W Bulb = 20w … Read more
CIRCUIT BREAKER Circuit breaker; An automatic device for stopping the flow of current in an electric circuit as a safety measure. RCCB = Residual current circuit breaker ELCB = Earth leakage circuit breaker MCB = Miniature circuit breaker MCCB = moulded case circuit breaker
What is Earthing? Earthing; Is a system designed to protect electrical wires and component from damage caused by sudden electrical power surges. Earthing; its main purpose is to reduse the risk of dangerous electrical shocks from uninstalled metal parts of an appliance or electrical device. Earthing; systems also prevent end users from electrical shocks in … Read more