请教一下功率因数标准
请问一下那位大侠知道AC/DC开关电源多大功率需要加上功率因数校正,需要达到百分之多少?我所知道的是7,80W以上的需要PFC,但是不确切.好像EN61000-3-2规定也一直在更改!!
请教一下功率因数标准
全部回复(6)
正序查看
倒序查看
现在还没有回复呢，说说你的想法
@woshizainiao
那四类电器?~~~我手里的电源是用在工控上的,总的功率84W,不知道ken兄是否知道它的功率因数要求啊??我手里也没有相应的标准~~~~
standard
for the purpose of harmonic lititation, equipment is classcified as follows:
Class A:balanced three-phase equipment and all others, except that stated in one of the following classes.
Class B:portable tools. arc welding equipment which is not professinal
Class C: lighting equipment including dimming devices
Class D:equipment having an input current with a "special wave shape" as defined in figure 1 and an active input power, P<=600W, measured under the test conditions given in the relevant clauses of annex C
for the purpose of harmonic lititation, equipment is classcified as follows:
Class A:balanced three-phase equipment and all others, except that stated in one of the following classes.
Class B:portable tools. arc welding equipment which is not professinal
Class C: lighting equipment including dimming devices
Class D:equipment having an input current with a "special wave shape" as defined in figure 1 and an active input power, P<=600W, measured under the test conditions given in the relevant clauses of annex C
0
回复
提示
@穷则思变
standardforthepurposeofharmoniclititation,equipmentisclasscifiedasfollows:ClassA:balancedthree-phaseequipmentandallothers,exceptthatstatedinoneofthefollowingclasses.ClassB:portabletools.arcweldingequipmentwhichisnotprofessinalClassC:lightingequipmentincludingdimmingdevicesClassD:equipmenthavinganinputcurrentwitha"specialwaveshape"asdefinedinfigure1andanactiveinputpower,P
多谢KEN兄,不过不好意思,CLASS D小弟没有看懂~~~
..
..
0
回复
提示
