The life of the capacitor
actual to withstand voltage electrolytic capacitor in the circuit can't exceed pressure value of it. In the filter circuit, capacitance pressure value not less than 1 of ac RMS. 42. When using electrolytic capacitor, also note is don't pick up the cathode. Different circuit should choose different kinds of capacitance. Wipe resonance circuit can choose mica, high-frequency ceramic capacitor, dc insulation can choose paper, polyester, mica, electrolysis, ceramic capacitor, such as filter can choose electrolytic capacitor, the bypass can choose polyester, paper, ceramics, such as electrolytic capacitor. Capacitance in front of the load circuit to check it if there is any short circuit, open circuit and leakage phenomenon, and check its capacitance value. When installation, you must make the category of the capacitance, capacity, compression symbols such as easy to see, in order to verify. Life estimation ( 预期寿命) : electrolytic capacitor under the highest working temperature, time of sustainable action. lx=lo*2( - ta) Lx / 10 = actual working life lo (= to ensure life = maximum operating temperature 85℃105℃) Ta = capacitor temperature example: around the actual work specification value 105 ℃ / 1000 hrs65 ℃ life estimate: lx = 1000 * 2 ( 105 - 65). / actual working life: 16000 HRS heat load life ( 负载的生活) The electrolytic capacitor under the highest working temperature, the Inca rated voltage, the time after the completion of the continuous regulation shall comply with the following changes: the delta cap: the value of less than 20% before test
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