Electrical 4US

Top 10 cable companies in INDIA   Apar Industries Limited   Finolex Cables Limited   Gupta Power Infrastructure Ltd.   Havells India Limited   KEC International Limited   KEI Industries Limited   Polycab India Limited   RR Kabel Ltd.   Universal Cables Limited   V-Guard Industries Limited Apar Industries Limited Apar Industries Limited was established by Late Shri Dharamsingh D. Desai in the year 1958.  The headquarter of the company is located in Mumbai.  It is one of the best established cable companies in India.  The company is working in diverse areas of electrical and metallurgical engineering.  It is offering a range of products including specialty oils and lubricants, aluminum, and alloy conductors.  It is one of the top 10 cable companies in India. Finolex Cables Limited Finolex Cables Limited was established in the year 1958 and its headquarter is located in Mumbai.  The company is part of the Finolex Group.  The company manufactures various products like Wire & Cable, Swi

Thomas Edison is usually credited with the invention of the light bulb, but the famous American inventor was not the only one who contributed to the development of this revolutionary technology. Many notable figures are also remembered for the creation of electric batteries, lamps and the first incandescent bulbs. Thomas Alva Edison The story of the light bulb begins long before Edison patented the first commercially successful bulb in 1879. In 1800, Italian inventor Alessandro Volta developed the voltaic pile, the first practical method of generating electricity. The glowing copper wire of the Volta is also believed to be one of the earliest manifestations of incandescent lighting. Shortly after Volta presented his discovery of a constant source of electricity to the Royal Society in London, an English inventor named Humphry Davy designed the world's first electric lamp by connecting voltaic piles to charcoal electrodes. Davy's 1802 invention was known as the electric

Faraday's law of electrolysis The relationship between the amount of electric charge passing through an electrolyte and the amount of substance deposited at the electrode was introduced by Faraday in 1834 as the laws of electrolysis. 1. first law The mass of the substance deposited or liberated at any electrode is directly proportional to the amount of charge passed" Let this proportionality be called w = zq.  can be made in equality by Where z is the proportionality constant called the electrochemical equivalent.  It is the mass of matter in grams that is deposited or released by passing a coulomb of charge. 2. Second Law The mass of a substance that is deposited or liberated at an electrode when a certain amount of charge is passed is directly proportional to its chemical equivalent mass". that is w a E where w is the mass of the substance in grams while E is its chemical equivalent weight per gram equivalent. This law can be explained as follows. Consider three reactio

Electromotive Force (EMF)  is that the short sort of Electro drive which is that the driving force of the electrochemical cell. EMF is that the electric potential between the electrodes of an electrochemical cell. Electromotive Force EMF EMF = E1 - E2 where, E1 is the electrode potential of the more negative metal (anode) E2 is the electrode potential of the more positive metal (cathode) Electrode potential is the development of potential difference in the interface of electrode and electrolyte(electrolyte basically is an ionic conductor), when a metal (electrode / electronic conductor) is immersed in an electrolyte.

The bulb works on the principle of incandescent It has a thin filament (wire) through which when the current flows, it heats up and starts giving light. The emission of light due to heating is called incandescence. Structure of Bulb Incandescent lamp Incandescent lamp or incandescent lamp is colloquially called bulb. It generates light by incandescence. The emission of light due to heating is called incandescence. It has a thin filament (wire) through which when the current flows, it heats up and starts giving light. The filament is kept inside the glass bulb so that the atmospheric oxygen cannot reach the very hot filament and thus cannot weaken the filament by acting. Features Incandescent lamps are made of various sizes, voltages and power. Bulbs ranging from 1.5 V (torch bulb) to 300 V are readily available. Similarly, bulbs ranging from 1 watt to thousands of watts are made. Incandescent bulbs have the characteristic that their manufacturing costs are very low. Multi Colour

Electric Heater works on Joule's law of heating . When an electric current flows through a resistor , it heats up, the energy converted as heat is proportional to the square of the value of the current and the value of the barrier. That is, there should be such a wire, whose resistance is very high and it does not burn even when it is hot. Room Heater Electricity is a power. Just as a stream of water flows, so does electric power. But it has some rules.  1. It flows / flows through metal and matter. Some metals strongly oppose its flow. Some metals do not resist at all. 2. Metals which resist electric current are used in heaters. When a metal opposes the flow of electricity, heat is generated because of the opposition. 3. For the heater, a metal wire is used to resist the flow of electricity. As electric current is released in the wire - the wire heats up. Spring Element Heater 4. The construction of the heater The anti-current wire is kept in a tube.  The wire should not have dir

How does an electric metre work? Electric Meter It is designed to measure kWh, and to do so it measures Voltage (Across Incoming Line) Current (probably only in one leg, as the other would be symmetric with it) Phase (offset between voltage sine wave and current sine wave) Cable suitable for measuring current has to physically pass through a part of the equipment - usually a current transformer is placed around the current-carrying conductor. The most convenient designs have four large connection terminals - two in and two out (some more in 3-phase meters, of course) to make wiring operations easier. One can think of the meter as a black box in series with the supply, if that helps. Single phase Meter The instrument starts by continuously measuring the instantaneous power, using the calculations: Power = Voltage × Current × Cosine (θ) where is the phase offset measured between the two waves. To convert this to kWh (which we pay for) the instantaneous power is integrated over time