变频潜水泵是利用改变电源的频率来改变电机的转速,并因此而改变出水量,水泵的转速决定其出水量的大小。
Frequency conversion submersible pump is to change the speed of the motor by changing the frequency of the power supply, and thus change the water output. The speed of the pump determines the size of its water output.
1.深井情况复杂多变，变频调速提高潜水泵灵活性，调节变频装置的频率就可以达到如井液粘度增加，降低频率，使潜水泵生产始终处于佳状态，保证电机不过载。
1. The situation of deep well is complex and changeable. Frequency conversion speed regulation improves the flexibility of submersible pump. By adjusting the frequency of frequency conversion device, the submersible pump production will always be in the best state and the motor will not be loaded.
2.维修次数少，节省下井、起井费用。
2. Maintenance times are less, and the cost of well-going and well-starting is saved.
3.三相潜水电机全压启动，启动电流约为4-6倍额定电流，电流过大，使得发电机会烧毁。但是采用变频装置则可以在低频低压下启动，启动电流约为1.5倍额定电流，能够减少对电机的伤害。另外当短期过载时，变频装置自动降频，减少停机的启动次数，能够延长潜水泵寿命。
3. Three-phase submersible motor starts at full voltage, and the starting current is about 4-6 times the rated current. The excessive current will cause the generator to burn down. However, the frequency conversion device can start at low frequency and low voltage. The starting current is about 1.5 times the rated current, which can reduce the damage to the motor. In addition, when short-term overload occurs, the frequency conversion device automatically reduces the frequency, reduces the number of startup stops, and prolongs the life of submersible pumps.
4.变频调速可以使潜水泵处于佳状态，解决了潜水泵流量低时，消耗的电能一样的问题，这样就可以达到节能的目的。
4. Frequency conversion and speed regulation can make the submersible pump in the best state, and solve the problem of the same power consumption when the flow rate of the submersible pump is low, so as to achieve the purpose of energy saving.
5.潜水泵在地质情况不清，运行中井况变化大的情况。这时候就需要变频调速来使得潜水泵处于佳状态，能灵活的的工作。
5. The geological condition of submersible pump is not clear and the well condition changes greatly during operation. At this time, it is necessary to adjust the speed by frequency conversion to make the submersible pump in the best state and work flexibly.
