High voltage brushless dc motor and what are the advantages and disadvantages compared to low voltage brushless dc motor | | brushless dc motor, brushless dc motor in the south of anhui factory | anhui

1 the high voltage brushless dc motor in the south of anhui compared to the low voltage brushless dc motor, in the south of anhui has the following advantages: (1)Can do a lot of power, the biggest can reach thousands, even tens of thousands of kilowatts. This is because, in the same output power, the high voltage brushless dc motor current is much smaller than the low voltage brushless dc motor (Basically is inversely proportional to the voltage relationship)。 500 kw, 4, for example: the three-phase ac motor in the rated voltage of 380 v when the rated current is 900 a, and is rated voltage 10 kv only 30 years or so. So the high voltage brushless dc motor winding can be smaller wire diameter. As a result, the high voltage brushless dc motor stator copper loss will also be smaller than low voltage brushless dc motor. For more high power brushless dc motor, using low voltage electrical, is due to the need of thicker wires need a large area of stator slot, do make the diameter of the stator core is large, the volume of the brushless dc motor will be very big. （2)Used for large capacity motor, high voltage motor power supply and distribution equipment less than overall investment low voltage brushless dc motor, and line loss is small, can save power consumption. 10 kv high voltage motor, in particular, can be directly use grid power supply (Our country provide users with high voltage is usually 10 kv)So in power equipment (The main transformer)The investment will be less, use more convenient also reduces failure rate. 2 compared to the high voltage brushless dc motor in the south of anhui anhui low voltage brushless dc motor, its defect is: (1)The cost of winding is relatively high (Is mainly caused by insulation), the insulation of the related material cost will be high; （2)Insulation treatment is more difficult, man-hour costs more; （3)The use of environmental requirements more strict than low voltage motor a lot.