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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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STPM32 Scheda tecnica(PDF) 25 Page - STMicroelectronics |
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STPM32 Scheda tecnica(HTML) 25 Page - STMicroelectronics |
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25 / 121 page  DS10272 Rev 8 25/121 STPM32, STPM33, STPM34 Typical application example 121 Note: Above listed components refer to typical metering applications. The STPM3x operation is not limited to the choice of these external components. Table 7. Suggested external components in metering applications Function Component Description Value Tolerance Unit Line voltage interface Resistor divider R to R ratio VRMS = 230 V 1:1650 ± 1% 50 ppm/°C V/V R to R ratio VRMS = 110 V 1:830 Line current interface Rogowski coil Current to voltage ratio kS 0.15 ± 5% 50 ppm/°C mV/A CT 2.4 ± 5% Shunt 0.3 ± 5% |
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