Tech Today

  In today’s world of technology, science is getting advanced day by day. New technologies are being introduced. There will be such simple yet universal important things which can’t be neglected like electricity.Electricity has a prominent place in mankind. The electricity we use at home is a single phase electricity. To record that we have been installed with an device energy meter. Induction type Energy meter is a device records and present the amount of electricity we use . Let us see how an induction type Energy meter works and also some of its errors during the operation. Working: There are two electromagnets in an energy meter, the one is called the shunt and the other is called the series magnet. Shunt magnet consists of a coil called pressure coil and the coil of series magnet is known as the current coil. The aluminium disc of energy meter determines the energy consumption of the user.The supply voltage is used by the pressure coil to produce a magnetic field and the c...

  Household energy meter: Electricity is the vital energy for functioning of all electrical appliances. Every house has an electricity connection and a measuring device for the consumption of electricity. In this article we will discuss about the functioning of an energy meter along with its operating principle. Construction: A energy meter mainly consists of these four main parts. Driving system. The main components of this driving system are electromagnet. This temporary magnet is excited by the current flows through their coil. The core of this coil is made up of silicon steel lamination. This driving system consists of two electromagnets. Electromagnets are the magnets which are magnetised by passing current through them. The two magnets are placed upside down. The upper magnet is called shunt magnet and the down magnet is called the series magnet. The series magnet is excited by the loadCurrent passes through it.The shunt coil of the Shunt magnet is directly connec...

  Methods to start a single phase induction motor or types of single phase induction motor. In the last article we have discussed about a single phase induction motor. In this article we will see the operating procedure to start an Induction motor. Single phase induction motor isn’t a self starting motor. It needs to be made self starting by following three methods. Split phase induction motor: In this method of starting single phase induction motor, it consists of two windings one is called the main winding and the other is known as auxiliary winding. Both windings are split at 90 degree to each other that is making an angle of 90 degree. In a split phase induction motor winding are connected parallel to each other they are made from resistor and capacitor. The main winding of this motor consists of low resistance and high inductive reactance but in second winding the resistance is high and the inductive reactance is low, due to which when the current goes through the wind...

  Single Phase Induction Motor: A motor is the fundamental of all the electrical appliances and   even it’s a important phenomena for the invention of electricity. In this article we have explained about the fundamental of single phase induction motors, its construction, working principle and applications etc.,   About , construction, working Single phase induction motor is likely to be used the most, even more than three phase induction motors. As a single phase motor is normally used for domestic purposes, industrial purposes and for other purposes at a large scale. As single phase supply is normally available everywhere. In the world of electrical there are mainly two types of charges AC and DC.Here induction used with single phase implies it's relation with A.C(alternating current).Induction can only be produced in AC.The most surprising thing about single phase induction motor is that they are not self starting. You must be thinking then how will we start this ...