變頻潛水泵是利用改變電源的頻率來改變（biàn）電機的轉速,並因此而改變出水量,水泵的（de）轉速決定其出水量的大（dà）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（qíng）況複雜多變，變頻調速（sù）提高潛水泵靈活性，調節變頻裝置的頻率就可以達到如井液（yè）粘度增加，降低頻率，使潛水泵生（shēng）產始（shǐ）終處於佳狀態，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（quán）壓啟動，啟動電流約為4-6倍額定電流，電流過大（dà），使得發（fā）電機會燒毀。但（dàn）是采用變頻（pín）裝置則可（kě）以在低頻低壓下啟動，啟（qǐ）動電流約為1.5倍（bèi）額定電流，能夠減少對電機的傷害。另外當短期過載時，變頻裝置自動降（jiàng）頻，減少停機的啟（qǐ）動次數，能（néng）夠延長潛水泵壽命（mìng）。

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.變頻調速可以使潛水泵處於佳狀態，解決了潛水泵流量（liàng）低時，消耗的電能一樣（yàng）的問題，這樣（yàng）就可以（yǐ）達到節能的目的。

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（dì）質情（qíng）況不清，運行中（zhōng）井況（kuàng）變化大（dà）的情（qíng）況。這（zhè）時候就需要變頻調速來使得潛水泵處於佳狀態，能靈（líng）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.