System and method of measuring power produced by a power source

A system for measuring power produced by a power source, the system comprising:

• a first voltage sensor for sensing a first voltage difference between a first voltage and a second voltage;
• a second voltage sensor for sensing a second voltage difference between the second voltage and a third voltage;
• a first current sensor for sensing a current difference between a first current and a second current;
• a second current sensor for sensing a current difference between the second current and a third current;
• and
• a power measuring device that determines the power produced by the power source using the first and second voltage differences and the first and second current differences.

A method of measuring power produced by a power source comprising:

• measuring a voltage difference between a first line voltage and a second line voltage;
• measuring a current difference between a first line current and a second line current;
• and
• calculating power produced by a power source using the voltage difference and the current difference.

A method of measuring power produced by a three-phase power source comprising:

• measuring a first voltage difference between a first line voltage and a second line voltage;
• measuring a second voltage difference between the second voltage and a third line voltage;
• determining a third voltage difference by using the second voltage difference and the first voltage difference;
• measuring a first current difference between a first line current and a second line current;
• measuring a second current difference between the second line current and a third line current and
• determining a third current difference by using the second current difference and the first current difference;
• and
• calculating power produced by the three-phase power source using the first, second and third voltage differences and the first, second and third current differences.