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ADE9000 数据表(PDF) 22 Page - Analog Devices |
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ADE9000 数据表(HTML) 22 Page - Analog Devices |
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22 / 73 page ![]() Data Sheet ADE9000 Rev. A | Page 21 of 72 ENERGY AND RMS ERROR OVER FREQUENCY WITH INTEGRATOR ON The sinusoidal voltage has a constant amplitude of 50% of full scale, PGA_GAIN is a gain set to 4, the sinusoidal current has a constant amplitude of 10% of full scale, and a variable frequency between 45 Hz and 65 Hz. Fundamental quantities obtained with a fundamental voltage component in phase with a fifth harmonic, a current with a fundamental component of 10% of full scale, a fifth harmonic with an amplitude of 40% of the fundamental, a full scale at gain of 4 = (full scale at gain of 1)/4, a high-pass corner frequency of 4.97 Hz, and TA = 25°C, unless otherwise noted. 0.5 0.1 0.2 0.3 0.4 0 –0.2 –0.5 –0.1 –0.4 –0.3 40 45 50 60 55 65 70 LINE FREQUENCY (Hz) POWER FACTOR = +1 POWER FACTOR = +0.5 POWER FACTOR = –0.5 Figure 44. Total Active Energy Error vs. Line Frequency, Gain = 4, Integrator On, Power Factor = −0.5, Power Factor = +0.5, and Power Factor = +1 0.5 0.1 0.2 0.3 0.4 0 –0.2 –0.6 –0.5 –0.1 –0.4 –0.3 40 45 50 60 55 65 70 LINE FREQUENCY (Hz) POWER FACTOR = +1 POWER FACTOR = +0.5 POWER FACTOR = –0.5 Figure 45. Fundamental Active Energy Error vs. Line Frequency, Gain = 4, Integrator On, PowerFactor=−0.5,Power Factor=+0.5,and PowerFactor=+1 40 45 50 60 55 65 70 LINE FREQUENCY (Hz) POWER FACTOR = 0 POWER FACTOR = +0.866 POWER FACTOR = –0.866 0.5 0.3 0.1 –0.1 –0.3 –0.5 Figure 46. Total Reactive Energy Error vs. Line Frequency, Gain = 4, Integrator On, Power Factor = −0.866, Power Factor = +0.8665, and Power Factor = 0 0.5 0.1 0.2 0.3 0.4 0 –0.2 –0.6 –0.5 –0.1 –0.4 –0.3 40 45 50 60 55 65 70 LINE FREQUENCY (Hz) POWER FACTOR = 0 POWER FACTOR = +0.866 POWER FACTOR = –0.866 Figure 47. Fundamental Reactive Energy Error vs. Line Frequency, Gain = 4, Integrator On, Power Factor = −0.866, Power Factor = +0.8665, and Power Factor = 0 |
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