Current Rating for cable sizing Why current rating value is so important for cable sizing?This time i want share some information about current rating.It look like simple value but it give the big impact when we sizing the cable for our application. If during cable sizing calculation not done in proper way,it can cause a [...]
What is distribution substations? For electrical power distribution,substation is the one important component to serve,distributing and regulated an electricity to building,factory or private living area. Normally substations have the several required equipment such as power transformers and the voltage-regulating device for converting the high incoming sub-transmission voltages to low voltage primary system and ensure it [...]
Air-conditioner is one of equipment very popular around the world to cooling our room,office or any space.Now in market,air-conditioner have in many types and sizes.It depend on our application and types of space that we want use it. When install an air-conditioner,we want it running in more efficiency and enough capacity can cooling the room.So [...]
The AVR ( automatic voltage regulator ) is suitable for supplying power to the fields of either brushless or commutator type exciters and will maintain the A.C generator voltage within plus and minus 1% of the preset value with paralleling. When the load varies between no load and rated load and with a frequency changes [...]
Introduction For a given excitation,if speed of an A.C. generator is reduced then the output voltage would reduce also.In practice,this reduction in output voltage is sensed by the AVR ( Automatic voltage regulator ) which increases the excitation current to compensate. However,the field forcing capabilities of the AVR which are necessary to maintain output voltage [...]
Principle of operation When generators are operated in parallel,it is necessary to arrange for both real power ( kW ) and reactive load ( kVar ) sharing in proportion to their standard rating.Real load output from generator determined by torque applied to the shaft and this can only be controlled by controlling the prime mover [...]
Usually the generator is designed to capable to delivery the power supply required due to time basic ( hour ) to ensure reliable operation and prevent serious breakdown. Typically a given set can deliver more power for fewer hours per year, or less power continuously. That is a standby set is only expected to give [...]
A 3 pin plug used in most electrical appliances.It has a 13 ampere fuse is rated to protect electrical equipment from overload or short circuit. This time I will show how to wiring a plug step by step:- 1) Open a cover using a Philips screwdriver.we can see the terminal block inside a plug.
