{"id":11291,"date":"2021-06-27T06:16:14","date_gmt":"2021-06-27T06:16:14","guid":{"rendered":"https:\/\/www.bldcpump.com\/?page_id=11291"},"modified":"2024-09-18T17:36:25","modified_gmt":"2024-09-18T17:36:25","slug":"difference-between-2-phase-and-3-phase","status":"publish","type":"page","link":"https:\/\/www.bldcpump.com\/ja\/2\u76f8\u30683\u76f8\u306e\u9055\u3044\/","title":{"rendered":"Difference between 2-phase and 3-phase"},"content":{"rendered":"
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Difference between 2-phase and 3-phase<\/h1>\t\t\t\t<\/div>\n\t\t\t\t
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We’ve written a Brushless DC Pump Definitive Guide<\/a> to cover this topic. Please visit it and get a comprehensive view of brushless DC pumps.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Both 2-phase and 3-phase brushless DC pumps use low voltage DC power sources instead of 110V or 220V AC power. 3-phase brushless DC pump allows a significant increase in the pump’s rated power to improve the performance. And it can work in a higher temperature environment.<\/strong><\/p>

Three-phase brushless DC technology is an excellent upgrade of two-phase brushless DC technology.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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2-phase brushless DC motor<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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\"three-phase-Fig1\"<\/p>

The two-phase motor has a 4-slots stator and two pairs of magnetic fields. It must put a hall sensor inside of the pump body to check the rotor position. So we need to put the circuit inside of the pump.<\/p>

When the pump was working, the motor\u2019s current will cause a high temperature (sometimes even more than 100 Celsius). In general, the electronic component\u2019s temperature resistance is 85 Celsius.<\/p>

So we usually produce a two-phase pump\u2019s current of 2 amperes or less and need to guarantee the environmental temperature is less than 60~70 Celsius. Otherwise, the pump\u2019s reliability cannot be ensured.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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3-phase brushless DC motor<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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The three-phase brushless DC motor has a 6-slots stator and three pairs of magnetic fields. The pump use MCU control, and intelligent commutation position detection without additional sensors.<\/p>

So we do not need to put any electronic component inside of the pump body. We put all the circuits outside of the pump body, using the Aluminum case potting with epoxy.<\/p>

Therefore, the high temperatures generated by the motor work will not influence the circuit. Meanwhile, we replaced all the pump\u2019s materials with high-temperature-resistant materials; then the pump can be used in hot water even more than 100 Celsius.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Advantages of 3-phase brushless DC pump<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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A three-phase brushless DC pump has many advantages over a two-phase brushless DC pump.<\/p>

When we use a three-phase brushless DC motor driven instead of a two-phase, we can make the pump power much higher, which means a much larger flow rate and higher head.<\/p>

Due to the use of MCU, we can add many program functions to the pump, such as Reverse protection, stuck protection, over-current protection, manual speed control, gifted program, and so on.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Notes<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Some things need to attend, three-phase DC is entirely different from three-phase AC. Three-phase DC has the same power supply as the two-phase DC, and it has two power cables, one positive and one negative. However, the three-phase AC has three power cables.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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How to distinguish our two-phase and three-phase pumps?\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

\n\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tDownload Our Full Products Catalog<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
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And view our Model Code Instruction<\/a><\/strong> here.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\tAbout BLDC PUMP\t\t\t\t\t<\/h4>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t
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We are focused on brushless DC water pump's R&D and production from 2009. A water pump manufacturer with about 100 highly technical, skilled employees in Shenzhen of China. <\/div>\n
We've chosen to provide customers with comprehensive and flexible solutions according to customers' needs and win at the product quality.<\/div>\n
Our passion lies in helping start-ups grow from \"Zero to One.\" So if you have any questions need to discuss with our engineer-turned sales consultant, don't let anything stop you move forward.<\/div>\t\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t
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Get our full Product Catalog (PDF File)<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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