electrialstandards

Why we need to Know Area of room before selection of air conditioner? There is often confusion arises in customer mind that what size of air conditioner will be sufficient for their room. Most often everyone get some information from friends or from seller itself. Even other customers just try to explain their own experience and you buy according to their experience, and sellers always try to sell those products from where they get maximum profit. So it will become very important to know what size of air conditioner should be selected for effective cooling of room, although friends experience gets to arrive at good product. But you should know how to select right capacity of Air conditioner as per requirements. If you buy an air conditioner with higher capacity from requirements then this will leads to excessive power consumption and if lower capacity air conditioner selected then cooling will not be achieved which will defeat the purpose of air conditioner installation. Air conditione

ISEER Rating you often spotted on Commercial advertisements for air conditioners and every company is claiming that they are giving highest ISEER rating and rating is also mentioned for the same. They also even claim that their product consumes very low electricity. Now it becomes very important to know about what is ISEER rating? How it is very important parameter before buying a product. In this article we will study about ISEER rating. With everyday new inventions in air conditioning it becomes important for BEE to introduce methodology for measuring efficiency of air conditioners. With invention of inverter air conditioners, it was thought that it may not be successful but inverter air conditioners become very successful. But they were introduced without any star label which becomes very important factor while buying any electrical/ electronic product. So people want star rating of inverter air conditioners. To overcome this problem ISEER was introduced.   Earlier for measuring per

Why Aluminum conductor is used in Transmission instead of copper conductors. Material used in Transmission lines should have following properties:- 1.        Low cost of construction 2.        Resistivity should be lower 3.        Material should have high conductivity 4.        Material should have Low temperature coefficient 5.        Material should have High current carrying capacity 6.        Material should have High mechanical strength 7.        Weather resistance properties of material 8.       There should have good elasticity of material  The metals which partially fulfill the above requirements are copper, aluminum and steel. These are used alone or in combination . Aluminum conductors are having conductivity closer to conductivity of copper conductors. Aluminum conductors have conductivity 61% of copper conductors. For Same resistance of that of copper conductor, aluminum conductor weight will be half of that copper conductor. Although when we compare conductivity we should

In every domestic, industrial and commercial establishment there is need of electricity and for measuring power consumption energy meters are installed in all establishments. For domestic connections usually direct meters are used means power supply wires are directly connected at input and output is withdrawn from its output and for large and commercial establishments CT operated energy meters are used as direct meters are not feasible to install as size of these energy meters will be very high. It is usually recommended to install CT operated meters if load requirements from energy meters are more than 15 KW. CT operated meter is most preferable meters in all establishments as they are easy to install and operation is very simple. In this article we study about installation of energy meters both Houses and as well as commercial and industrial establishments:- In Domestic connections both single phase and three phase energy meters are used:- For single phase meters wiring is quite sim

Phase preventer are used in industries are having following advantages:- 1.        They uses to protect the motors and electrical systems in case of one/ two phase failure in three phase power system i.e. they can protect the system from single phasing. 2.        They protect the system in case phase sequence gets changed and phase sequence protects the system so that motors could not start operating in reverse direction. 3.        They also protect the system when voltage level falls below a particular level. Phase preventer is also named as single phase preventer. Installation of Phase preventer in electrical systems:- Phase preventer consists of following:- 1.        Terminals for Three phase supply 2.        Terminals for auxiliary supply 3.        NO/ NC contact for interlocking Connections for the relay as below:- There are few additional settings provided on Phase preventer are:- (i)                   Under voltage setting :- Do the Under Voltage setting to minimum (ii)