Technical Editor, Author at Polytechnic Hub

Types of motor enclosure

Broadly enclosures are categorized as : Open type Totally enclosed type Motor with open enclosures provides air cooling of motor windings as it features ventilation openings to allow the same.…

Technical Editor June 28, 2018

Electrical Articles

What is gear driver ?

There are many types of gear drives such we : Helical Spur Bevel Worm gear Helical and bevel gear drive are most preferred and quite efficient out of them. Spur…

Technical Editor June 28, 2018

Electrical Articles

What are core lamination

Laminations mitigate the eddy currents. The iron core is formed by laminations dipped in insulating varnish. Sliced core offers very less width to circulated eddy currents. Silicon steel sheets to…

Technical Editor June 27, 2018

Electrical Articles

Isolating transformer

Usually, the electrical transformer is used to either step up or step down the voltage. It hardly does anything to minimize the crossing of noise or transients from primer to…

Technical Editor June 27, 2018

Electrical Articles

One-third populations of motors in industrial and commercial sectors include belt drive as it avoids transmission loss. Increase decrease in the speed of the drives equipment is achieved with pulleys…

Technical Editor June 27, 2018

Electrical Articles

What is changing to a different winding

In the rewinding with the option, lap winding is often preferred to be used as it includes all the same coils. This is quite acceptable if it results in the…

Technical Editor June 26, 2018

Electrical Articles

What is copy rewinding

If as noted earlier when details of manufacturer’s original winding are preserved the core can be made ready for rewinding. The points which will remain same as those of original…

Technical Editor June 26, 2018

Electrical Articles

Types of re-lamping

There are two types of re-lamping: Groups re-lamping Sport re-lamping Group re-lamping Group re-lamping is a preventive approach. In this lamps are replaced to ensure a light level when lamps…

Technical Editor June 26, 2018

Electrical Articles

Current balancing procedure

Thick over all possible combinations of phase load changes at each 3-phase connection point for either single-phase supplies or loads. When all selections have been made, consider the order in…

Technical Editor June 15, 2018

Electrical Articles

Meter inaccuracies

Losses due to meter inaccuracies are n nothing but a difference between actual energy supplied to the consumer through the meters and amount registered by meters. When meters it gives…

Technical Editor June 15, 2018