12.3 Detailed Measurement Specifications
189
Chapter 12 Specifications
12
Measure-
ment accu-
racy
• Harmonics level
1 th to 15 th: ±5%rdg.±0.2%f.s.
16 th to 20 th: ±10%rdg.±0.2%f.s.
21 th to 40 th: ±20%rdg.±0.3%f.s.
However, accuracy figures from the clamp sensor specifications
ar
e added for current and power.
• Harmonic power phase angle
1 th to 3 th: ±3°+ accuracy figures from t
he clamp sensor specif
ica-
tions
4 th to 40 th: ±0.1°× k ±3°+ accuracy figures from the clamp sensor
spec
ifications (k: number of harmonic order)
However, harmonic voltage must be 6 V and current level must be
1%
f.s. or higher for each order.
• Total harmonic distortion rate
No accuracy defined.
Harmonic Wave (PW3360-21 only)
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