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introduction：Brief introduction of inverter principle，The working principle of the inverter is to control the main circuit through the control circuit，A rectifier in the main circuit converts alternating current to direct current，The DC intermediate circuit smooths the DC current，The inverter finally converts the direct current back into alternating current at the desired frequency and voltage，Part of the frequency converter will also be added in the circuitCPUisocomponent，To perform the necessary torque calculations。
2016-03-10 Reading quantity 854
introduction：Principle of frequency converter， ???The principle of frequency converter is to use the on-off action of power semiconductor devices to convert the power frequency power supply into another frequency power control device。Divisible intersection——Ac frequency converter，Hand in——straight——Ac frequency converter。Hand in——Ac inverter can be direct Turn alternating current into alternating current with variable frequency and voltage；Hand in——straight——Ac frequency converter is the first alternating current through the rectifier first rectified into direct current，Then through the inverter to turn this DC current into a frequency and voltage variable Alternating current。
2016-03-05 Reading quantity 1273
introduction：Frequency converter maintenance knowledge，Inverter working principle，Frequency converter is a power control device that converts the power frequency power supply to another frequency by using the on-off action of power semiconductor devices。The frequency converters we use now mainly use alternating—straight—Intersection mode，The power frequency AC power supply is converted into DC power supply by rectifier，then...
2016-03-05 Reading quantity 1112
introduction：Bearing common nine major problems，One picture done！
2016-03-30 Reading quantity 295
introduction：Frequency converter action description
2016-03-29 Reading quantity 288
introduction：abbInverter working principle，And other inverter principle is basically the same，It is also a sub-rectifier unit—capacitance—-Inverter unit，merelyABBOne more feature is thatDTCDirect torque control；The first transfer，I dont know. Can I see it？See the diagram for details
2016-03-23 Reading quantity 364
introduction：Relay top ten brands list，Relay choose what brand is good
2016-03-21 Reading quantity 735
introduction：The role of inverter reactor in Fengye Mall，A reactor is installed at the input end of many frequency converters，On the one hand, it is to reduce harmonic current emission，On the other hand, it can improve the characteristics of the frequency converter against surge interference。
2016-03-16 Reading quantity 889
introduction：Inverter working principle and control mode
2016-03-09 Reading quantity 922
introduction：Frequency converter maintenance procedure，ABBInverter maintenance methods need to be mastered properly，Because the inverter is composed of a variety of components，The performance of some of these components will gradually decrease after long-term work、aging，This is the main cause of failure，In order to ensure the long-term normal operation of the equipment，Some vulnerable components should be replaced from time to time，E.g. Capacitance、Cooling fan。
2016-03-09 Reading quantity 959
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