變頻潛水泵是利用改變電源的頻率來改變電機的轉速,並因此而改（gǎi）變出水量,水泵（bèng）的轉速決定其出水量的大小。
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.深井情況複雜多變，變頻調速提高（gāo）潛水泵靈活性，調節變頻裝置的頻率就可以達到如井液粘度增加，降（jiàng）低頻率，使潛水泵生產始終處於佳（jiā）狀態，保證電機不過載。
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.維（wéi）修次數少，節省下井、起井費用。
2. Maintenance times are less, and the cost of well-going and well-starting is saved.
3.三相潛水電機全壓啟動，啟（qǐ）動電流約為4-6倍額定電流，電流過大，使得發電機（jī）會燒毀。但是采用變（biàn）頻裝置則（zé）可以在低頻低壓下啟動，啟動電流約為1.5倍額定電流，能夠（gòu）減少對電機的傷害。另外當短期過載（zǎi）時，變（biàn）頻裝置（zhì）自動降頻（pín），減少停機的（de）啟動次數，能夠延長潛水（shuǐ）泵壽命。
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.變頻調速可（kě）以使潛水泵處於佳狀態，解決了潛水泵流量低時，消耗的電能一樣的問題，這樣就可以達（dá）到節能的目的。
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.潛水泵在地質情況不（bú）清，運（yùn）行中井況變化（huà）大的（de）情況。這時候就需要（yào）變頻（pín）調速來使得潛水（shuǐ）泵處於佳狀態，能靈活的（de）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.
