Electrical Calculator
KW to Current Converter
Current to KW Converter
Note: In this calculation, the line voltage is assumed to be 415 volts, and the power factor is assumed to be unity.
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How to Convert KW to Current and Current to KW in a 3-Phase System
In a three-phase electrical system, it is often necessary to convert between kilowatts (KW) and current (A) to accurately assess power consumption or determine the electrical load. This article will guide you through the process of converting KW to current and current to KW using the appropriate formulas.
Converting KW to Current
To convert KW to current in a three-phase system, you can use the following formula:
Current (A) = KW * 1000 / (1.73 * Voltage* P.F)
Where:
Current (A) represents the current in amperes
KW is the power in kilowatts
P.F is Power factor
1.73 is the square root of 3 (used in three-phase systems)
Voltage represents the system voltage (e.g., 400V)
For example, suppose you have a three-phase system with a power consumption of 15 KW and a voltage of 400V. Applying the formula, the calculation would be as follows: Current (A) = 15 * 1000 / (1.73 * 400) = 26.05 A
So, in this case, the current would be approximately 26.05 amperes.
Converting Current to KW
Conversely, to convert current to KW in a three-phase system, you can use the following formula:
KW = Current (A) * Voltage * 1.73 * P.F/ 1000
Where:
KW represents the power in kilowatts
Current (A) is the current in amperes
P.F is Power factor
Voltage represents the system voltage (e.g., 400V)
1.73 is the square root of 3 (used in three-phase systems)
For instance, let’s assume you have a three-phase system with a current of 40 A and a voltage of 400V. Applying the formula, the calculation would be as follows: KW = 40 * 400 * 1.73 / 1000 = 27.68 KW
Thus, in this example, the power consumption would be approximately 27.68 kilowatts.
Converting between KW and current is crucial for accurate power analysis and load assessment in three-phase systems. By utilizing the formulas provided in this article, you can easily calculate the current when given the KW value, or determine the KW when provided with the current value, enabling better understanding and management of electrical power in these systems.