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Table 3.

Characteristics of the Total Harmonic Distortion, THDU.

Plant R1 R2 Ml M2 M3 P
Annual number of
the exceedances of
the allowable level
of higher
harmonics
12 9 0 0 3240 30
THDUwhen exceeding the allowable level of higher harmonics [%] min 2.70 2.10 0.00 0.00 2.70 6.20
avg 5.43 2.17 0.00 0.00 3.90 7.50
max 9.80 2.30 0.00 0.00 7.90 9.70
SD 0.52 0.12 0.00 0.00 0.71 1.13
THDU hroughout the study period [%] min 0.50 0.50 0.00 0.00 0.00 0.00
avg 1.23 1.26 1.82 2.66 2.72 3.45
max 9.80 2.80 3.06 6.73 7.96 9.99
SD 0.96 0.24 0.36 0.73 0.82 1.16
Annual number of the exceedances of the allowable level of THDU 4 0 0 0 0 112

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