Strictly speaking the original fiberglass resin was polyester resin. The problem is that the industry evolved but the names for the complete materia……
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Fiberglass Fibreglass matting is also used as insulating material and offers the following advantages: · High resistance to fire; · High resistance ……
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Since critical radius of insulation decides whether heat transfer would increase or decrease upon further increasing the thickness. These both techn……
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For any electrical machine or equipment, usually the operating voltage V in volts and maximum current A in amps are specified. This gives an idea of……
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Let us begin with the difference between kVA and kW. The k just means 1000 times whatever the units are. VA is Volts multiplied by Amps. V x A. W is……
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Transformer is an electrical device that transforms the voltage at one level to the volatge at different in ratio of the nurmber of turns in their p……
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It is a cylindrical tank mounted on supporting structure on the roof of the transformer’s main tank. Function: When transformer is loaded and ……
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There are many different kinds of transformers, each made with different materials. A typical power transformer begins with a core made from thin sh……
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When the grid on the high and medium voltage side is a neutral (or effective) grounding system, the contact transformer can be an autotransformer. W……
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Multilayer PCBs further increases the complexity and density of PCB designs by adding additional layers beyond the top and bottom layers seen in a d……
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Cotton is a good heat insulator, provided that it is NOT IN VACUUM. First of all, please understand the fact that air is a very poor heat conductor.……
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What should we pay attention to when purchasing insulation materials? Insulation materials are widely used in today’s field, and they have dif……
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Electrcal machines use a range of insulation materials for different purposes. Motors and transformers make use of following types— Leatheroid paper……
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PCB’s can be manufactured from many types of materials. The reason they use a dielectric material in some because of an insulator is because of circ……
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Various types of insulation materials are used in transformer for different purposes— Varnish on winding wires Butter paper inter layer insulation ……
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If you mean core of transformer, there are different material s for different type of transformers,for example: 1.small and big power and distributi……
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A material with higher permeability and less conductivity is chosen for the transformer core. High permeability so that it can easily allow the magn……
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Effects of giving a constant DC input to a transformer: 1. We know, for an inductor v=Ldi/dt, since v is constant here, the i(current) will follow ……
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Class A insulation in a transformer include. The Materials of class Y (cotton,silk,paper,wood,cellulose,fibre etc. without impregnation or oil immer……
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As per IEC standard, thermal classes of insulation are defined as having maximum permissible working temperature as under,: Class A : 105 °C. These……
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Temperature insulation classes give an indication of the maximum temperature that an insulation material may be exposed to without deterioration. Th……
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Question: Why is an insulation paper inserted during motor winding? Answer: The conductor used during wiring is to be insulated from ground and eac……
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Question: What is the difference between non conducting material and insulating material? Answer: A conductor is an object or type of material that……
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Question: What is Double Insulation? Answer: Some appliances have double insulation. These appliances only need live and neutral wires. They do not ……
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