ii
Introduction ............................................................................................................... 1
Using the 1040C for Calibrating Single Phase Devices............................................ 2
A.C. Voltage.................................................................................................. 2
A.C. Current .................................................................................................. 2
A.C. Power .................................................................................................... 3
A.C. Frequency ............................................................................................. 3
Phase Angle................................................................................................... 4
Power Factor ................................................................................................. 4
Volt-Amps and Volt-Amps Reactive ............................................................ 5
Using the 1040C for Calibrating Polyphase Devices................................................ 7
A.C. Voltage.................................................................................................. 7
A.C. Current .................................................................................................. 7
A.C. Power .................................................................................................... 7
Phase Angle................................................................................................... 8
Power Factor ................................................................................................. 8
Volt-Amps and Volt-Amps Reactive ............................................................ 10
Calibrating Transducers Using the Null Comparison Method.................................. 11
Connection Diagrams................................................................................................ 12
Phase, Power Factor, and VAR Convention Diagram .............................................. 23
Appendix A: Meter Examples.................................................................................. 24
