Power loss unit
- how to calculate power loss in watts
- calculate power loss in watts
- how to calculate power loss
- how to calculate power in watts
Power loss in transmission lines formula
Power loss formula in dc circuit!
Cable Loss Calculation
The cable loss calculation is a very important parameter used by the designer while selecting a power cable for a particular electrical installation.
The power loss in the cable is known as cable loss.
Generally, the power cable conductors are made of aluminum or copper material. The copper and aluminum have certain resistance according to the specified specific resistivity.
Power loss formulaThe resistivity of the copper is about 59 % less than the resistivity of aluminum. Therefore, the copper conductor has less resistance as compared to the aluminum conductor.
When current flows through the conductors of the cable the heat loss I2R takes place.
The heat loss in the cable depends on the current & the resistance of the conductor. The resistance of the cable depends on its length and cross-section area. Thus, the heat loss in the cable depends on the following operating & design data of the cable.
- Cable length
- Cross-section area of conductor
- Specific resistivity of the material
- Current
- Number of cores