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There are many types of three wire and four wire cables. There are many types of armoured sheath on these cables. The cables can have free air rating like NS75 quad, or hard drawn single conductor rack mounded conductors. The voltage rating of the cables plays a big part in the price of the cables. So to give a definite price without knowing more about the cable, a price can not be given.
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When you have 56KVA available in 3 phase supply how much is your available current in 3 phase and how much in 1 phase?
To find the available current in a 3-phase supply using 56kVA, you would divide the kVA by the square root of 3 (which is approximately 1.732). So, the current in each phase would be around 56kVA / (1.732 * 415V) ≈ 78A. In a single-phase system, the current would be the same, as the total available kVA would remain the same regardless of the number of phases.
How much does it cost to run a 3 phase 9 kW heater?
The cost is set by the power, 9 kW, and the length of time it is used. This heater would use 9 units (kilowatt hours) for each hour it is switched on. Depending on the price the utility company charges you for their three phase rates times the length of time will give you the answer.
How much more power does three phase produce?
Three-phase power systems produce 1.5 times more power compared to single-phase systems of the same voltage and current. This is because three-phase systems allow for a more balanced load distribution and smoother power delivery.
How much breaker load Amps required for 31 kw?
Impossible to say without more details. It depends entirely on the voltage of the supply and whether it's single-phase or three-phase.
Why is the neutral wire thinner in overhead 3-phase AC transmission line?
The neutral wire carries the imbalance of current between the three phases in a 3-phase system. Since the current is typically balanced in a 3-phase transmission line, the neutral wire carries minimal current and can therefore be thinner compared to the phase wires.
