What is the available voltage for a 2400 3 phase 3 wire system?

In a 2400-volt three-phase, three-wire system, the available voltage is indeed 2400 volts. This is the line-to-line voltage in such a system. In three-phase power systems, voltages are typically described in terms of line-to-line and line-to-neutral.

In this case, the 2400 volts refers to the voltage that exists between any two of the three phase conductors. Since there are only three wires in this configuration, it means there is no neutral wire involved, which is typical in a three-phase system. Therefore, the term 'three-wire' signifies that the system is constructed to deliver power through these three conductors without the need for a neutral.

Understanding the configuration helps in recognizing that the line-to-neutral voltage would be approximately 1385 volts, calculated by dividing the line-to-line voltage by the square root of three. However, since the question focuses on the available voltage for the entire system as expressed in three-phase terms, the correct answer is 2400 volts.