QuestionJuly 16, 2025

The typical voltages for a 120/240 volt, 3-phase, 4-wire delta-connected system are 120 volts phase A to phase B. ) 208 volts phase B to ground. 208 volts phase B to phase C. 240 volts phase C to ground.

The typical voltages for a 120/240 volt, 3-phase, 4-wire delta-connected system are 120 volts phase A to phase B. ) 208 volts phase B to ground. 208 volts phase B to phase C. 240 volts phase C to ground.
The typical voltages for a 120/240 volt, 3-phase, 4-wire delta-connected system are 120 volts phase A to phase B. ) 208 volts phase B to ground. 208 volts phase B to phase C. 240 volts phase C to ground.

Solution
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Answer

The voltages provided do not correspond to a standard balanced 3-phase, 4-wire delta-connected system. Explanation 1. Identify the system type The system is a 3-phase, 4-wire delta-connected system. 2. Verify phase-to-phase voltage In a delta system, the phase-to-phase voltage should be equal to the line voltage. Here, it's given as 120 volts from phase A to phase B and 208 volts from phase B to phase C, which are inconsistent for a typical delta connection. 3. Verify phase-to-ground voltage For a delta system, the phase-to-ground voltage is typically not equal to the phase-to-phase voltage. Given values (208 volts from phase B to ground and 240 volts from phase C to ground) suggest an unbalanced or non-standard configuration. 4. Analyze possible configurations The voltages provided do not match a standard balanced delta system. Typically, in a balanced delta system, the phase-to-phase voltage would be consistent across all phases, and phase-to-ground voltages would not be standard values like 208 or 240 volts.

Explanation

1. Identify the system type<br /> The system is a 3-phase, 4-wire delta-connected system.<br /><br />2. Verify phase-to-phase voltage<br /> In a delta system, the phase-to-phase voltage should be equal to the line voltage. Here, it's given as 120 volts from phase A to phase B and 208 volts from phase B to phase C, which are inconsistent for a typical delta connection.<br /><br />3. Verify phase-to-ground voltage<br /> For a delta system, the phase-to-ground voltage is typically not equal to the phase-to-phase voltage. Given values (208 volts from phase B to ground and 240 volts from phase C to ground) suggest an unbalanced or non-standard configuration.<br /><br />4. Analyze possible configurations<br /> The voltages provided do not match a standard balanced delta system. Typically, in a balanced delta system, the phase-to-phase voltage would be consistent across all phases, and phase-to-ground voltages would not be standard values like 208 or 240 volts.
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