Design of heating element:(adsbygoogle = window.adsbygoogle || []).push({});

Supply Voltage: 220V/3Ph/60HZ, Power: 9KW

Resistance= VXV/P= 220X220/9000= 5.4 Ohms, But when physically when measure the resistance of wire using multimeter it is showing 17 ohms. Can you explain why there is differnece in practical and theortical value.

Also, to find the diameter divide the found resistance by length and select the dia close to having resisitivity(R/L= Ohm/Meter) of above formula. But same as with this caluculation there is large deviation in values.

or can anyone provide a link to the literature find the resistance & dia of heater element.

Thanks in advance for help

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# Resistance & Diameter of heating element

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