Frequency CREPITUS-probationem motricium cum frequency converter ad adjust celeritate, frequency converter pro frequency conversionem ludere a tutela partes, ut overload, non facile ad C%, ut ONTHODO, ut Current Current C%, ut super-cun securus ardenti motricium. Ita, non cum inverter potest requiem facile, etiam postulo ut paratters recte, potest non temereant overload coefficiente, cum multo motricium, et attendere ad onus mutatio.
Mixer inverter frequency conversionem motricium ardenti plerumque conversus-ut-vertente brevi circuitu et aperta circuitu, phaenomenon ut brevi circuitu, in virtute frequency potentia, accepto voltage SINGUENTIAE MOTOR L HZ, cum SINGUENTIA INTERMENTUM MINUS CIRCUMSPECTATIO est in circuitu, quod minore in circuitu, in circuitu, minus est in circuitu, minore in circuitu in circuitu. Et sub in inverter potestate copia, inverter inverter converts DC, tres-phase aculeis per moderantum in switch elementum conduction, sex pontem brachium contritum, ut animadverto trium millia decem millia Hertz. Then receive the explosion-proof motor winding voltage impact is bigger, the voltage change rate increase, make the motor winding interturn voltage change rate is very high, winding voltage distribution becomes very uneven, make the turn-to-turn insulation test under great, such as motor winding short circuit, motor increasing failure rate.
the inverter output voltage waveform, under the high-speed switching effect of semiconductor switch, voltage will allow superimposed on the motor running voltage, can produce pulse on the motor terminal over-voltage, peak is about 2 times of dc voltage, pose a threat to ground insulation of brushless motor, the ground under the repeated impact of high voltage insulation can accelerate ageing.
there is also a kind of situation, make ordinary explosion-proof motor frequency conversion explosion-proof motor, due to the ordinary motor fan is with motor shaft is, when the motor running in low frequency for a long time, motor speed is low, together with the motor shaft of the fan will speed is too low, cause lack of motor cooling, serious when even burning motor.
inverter cause burning motor mainly have three:
spending the first is make ordinary motor frequency conversion motor
spending the second kind is connected directly to frequency conversion motor without debugging parameters
spending is the third kind of frequency conversion fan operation direction inconsistent with fan identification, lead to fan can not play a role of normal, cause lack of explosion-proof motor cooling, heat accumulation, serious when burning motor
do according to the above situation, we when choosing frequency Converter et inverter CREPITUS-probationem motricium, eligere a magnus fabrica boni qualitas, quamvis collatio cum respiciens ad punctum, sed boni et longa currere non facile ad ardens motricium, et dum vilis.
