GW Instek GDS-3000 Series DS3-PWR Power analysis manual - Manual (Page 21)

MEASUREMENT
21
Harmonic 3  C.3
Harmonic 5  C.3
*A, B, C.1, C.2, C.3, D are Class A, Class B, Class C
(Table 1), Class C (Table2), Class C (Table 3), Class D
Define Harmonic Inputs
Background Current and voltage inputs must be defined for
harmonic measurements.
Background For harmonic measurements, one channel is used
to measure voltage using a differential probe and
the other channel is used to measure current using
a current probe.
In the example below, the harmonic content of an
AC power source is tested.
WARNING
Ensure safe working practices are adhered to when
working with live voltages. Failure to do so could
lead to electric shock or loss of life.
Connection
Differential probe: Line and Neutral.
Current probe: Line.
Setup 1. Deskew the current and voltage
probes.
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