本帖最后由 北边的素言 于 2013-9-2 11:24 编辑 9 U( U' _# H; T* T
# G P1 \9 }! Z9 o' j" L5 ^( k高工们大家好：请问电吹风的谐波电流的期间核查的：8 J1 k3 Y% [+ }# o! K
1：总运行电流偏差要求≤0.5A，2,3次谐波要求≤0.2A，其他谐波分量要求≤0.1A；（这是某工厂试验室根据外审要求编的指导书）指得是什么意思？其中的总运行电流是指的哪里？谐波要求≤0.2A指的是哪里？以下是一份谐波电流的实验数据，请各位高工看一下，和上面的问题有没有关？谢谢。能不能这样理解：将40次的Harms(avg) （见下表）的平均值求一下看是否超过0.5A ？2,3次谐波要求≤0.2A 是不是指的是Harms(avg) （见下表）要≤0.1A ？
9 k( e/ a# _7 M8 iCurrent Test ResultSummary (Run time) Test Result: Fail (200% max - 90% avg used) Source qualification: Normal THC(A):1.64 I-THD(%): 17.62 POHC(A): 0.027 POHC Limit(A): 0.251 Highest parameter values during test: V_RMS(Volts): 220.16 Frequency(Hz): 50.00 I_Peak(Amps): 17.569 I_RMS (Amps): 10.790 I_Fund(Amps): 10.566 Crest Factor: 1.649 Power(Watts): 2336.3 Power Factor: 0.984
j n- j3 q" q2 m/ V$ Q5 L9 xHarm# Harms(avg) 100%Limit %of Limit Harms(max) 150%Limit %ofLimit Status % l% F+ z* `0 a* y
2 1.475 1.080 136.6 1.647 1.620 100.05 Fail 3 0.656 2.300 28.5 0.681 3.450 19.72 Pass 4 0.133 0.430 31.0 0.152 0.645 22.80 Pass 5 0.190 1.140 16.7 0.201 1.710 11.76 Pass 6 0.071 0.300 23.8 0.083 0.450 18.34 Pass 7 0.063 0.770 8.1 0.071 1.155 5.48 Pass 8 0.076 0.230 32.9 0.081 0.345 22.28 Pass 9 0.035 0.400 8.9 0.048 0.600 8.00 Pass 10 0.029 0.184 15.8 0.040 0.276 14.34 Pass 11 0.033 0.330 10.1 0.039 0.495 7.95 Pass 12 0.025 0.153 16.6 0.032 0.230 13.75 Pass 13 0.024 0.210 11.2 0.031 0.315 9.76 Pass 14 0.019 0.131 14.7 0.024 0.197 12.36 Pass 15 0.018 0.150 11.7 0.023 0.225 9.24 Pass 16 0.017 0.115 14.6 0.021 0.173 12.32 Pass 17 0.015 0.132 11.1 0.019 0.199 9.43 Pass 18 0.013 0.102 13.1 0.017 0.153 11.23 Pass 19 0.013 0.118 10.6 0.017 0.178 9.29 Pass 20 0.012 0.092 13.0 0.016 0.138 11.41 Pass 21 0.011 0.107 10.6 0.015 0.161 9.32 Pass 22 0.011 0.084 13.0 0.015 0.125 11.64 Pass 23 0.011 0.098 10.9 0.014 0.147 9.41 Pass 24 0.010 0.077 13.0 0.013 0.115 11.49 Pass 25 0.009 0.090 10.5 0.012 0.135 9.09 Pass 26 0.009 0.071 13.0 0.012 0.106 11.69 Pass 27 0.010 0.083 11.4 0.013 0.125 10.01 Pass 28 0.009 0.066 13.9 0.011 0.099 11.61 Pass 29 0.009 0.078 11.1 0.011 0.116 9.35 Pass 30 0.008 0.061 13.8 0.011 0.092 11.74 Pass 31 0.008 0.073 11.7 0.011 0.109 9.85 Pass 32 0.008 0.058 13.4 0.010 0.086 11.82 Pass 33 0.007 0.068 10.6 0.010 0.102 9.41 Pass 34 0.007 0.054 12.5 0.009 0.081 11.15 Pass 35 0.007 0.064 10.2 0.009 0.096 9.10 Pass 36 0.006 0.051 12.4 0.008 0.077 10.96 Pass 37 0.006 0.061 10.1 0.008 0.091 9.08 Pass 38 0.006 0.048 12.4 0.008 0.073 10.94 Pass 39 0.006 0.058 10.1 0.008 0.087 9.11 Pass 40 0.004 0.046 9.5 0.006 0.069 8.33 Pass
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发表于 2013-9-2 11:10
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