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Starting of three-phase asynchronous motors

Starting of three-phase asynchronous motors

2024.04.03

1、Direct starting However, the current of three-phase asynchronous motor can reach 6-7 times of the rated current when starting directly, which has a big impact on the power grid, especially for the high-power motor. 2、Frequency sensitive resistance starting Frequency-sensitive resistance starting refers to connecting frequency-sensitive resistance in series in the main circuit when the motor starts, so as to reduce the starting current. Frequency sensitive resistance can change the starting current smoothly, the impact on the power grid is small, it is a more ideal way to start. However, high-power frequency sensitive resistors are used in the form of inductance, so in use will produce a large electromagnetic eddy current, will reduce the power factor of the grid.

The appearance of streaks on the outer surface of extruded profiles for motor housings

The appearance of streaks on the outer surface of extruded profiles for motor housings

2024.04.03

First, there is a seam angle or the impact of poor welding: Hollow aluminum alloy profile using plane shunt combination die extrusion process, this process in the production of profiles relatively deepen the difficulty, the metal through the shunt, weld joint process, so the hollow profile is the existence of weld line. There are two reasons for the gap: one is the shunt hole, weld chamber is narrow, metal supply flow is insufficient, the metal in the weld chamber does not form enough hydrostatic pressure, the product is not welded and flow out of the die hole, resulting in the existence of weld gap products; is too much lubrication and poor lubrication.

The motor housing is the main part of the electric submersible pump motor

The motor housing is the main part of the electric submersible pump motor

2024.04.03

Motor casing is the main part of the electric submersible pump motor, its processing accuracy directly affects the quality of the electric submersible pump. Due to than buckle hole turning process motor shell large radius thickness than easy to produce elliptical deformation, deformation is generally 0.03-0.10mm, can not meet the user's requirements, if this problem is not solved, will lead to huge economic losses to produce qualified products.

What are the surface treatment technologies for motor housing machining?

What are the surface treatment technologies for motor housing machining?

2024.04.03

Powder electrostatic spraying aluminum extrusion: powder electrostatic spraying profiles are characterized by excellent corrosion resistance, acid and alkali salt spray resistance is greatly superior to oxidation coloring profiles. Plasma-enhanced electrochemical surface ceramization aluminum profiles: this type of profile is the world's advanced processing technology technology. The quality of this profile is excellent, but the cost is higher. It has more than 20 kinds of shades, and its big feature is that it can be color-coated like calico according to the needs, and the surface of the profile is colorful with good decorative effect.

What must be taken into account in the manufacture of motor housings?

What must be taken into account in the manufacture of motor housings?

2024.04.03

The use of aluminum in various industries has been increasing in recent years. Favorable characteristics such as low weight and good mechanical properties make aluminum a suitable alternative to steel in many cases.

What are the roles of motor housings in practical applications?

What are the roles of motor housings in practical applications?

2024.04.03

Motor casing materials are mainly used for winding, motor winding is often used purple copper wire or aluminum wire, it has good electrical conductivity, resistance loss IzR small.

There are many different processes for the surface treatment of motor housings

There are many different processes for the surface treatment of motor housings

2024.04.03

There are many kinds of surface treatment of motor casing. The cost of each process is different, the advantages of surface spraying is more color (commonly known as colored aluminum), production is simple, inexpensive, the disadvantage is that the color adhesion is not strong, easy to fall off, easy to change color over time.

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guanglu

Guanglu specializes in the manufacturing of IEC and Gost standard motors, featuring both aluminium (Frame 56-180) and cast iron (Frame 80-400) construction. Our motors meet IE1 to IE4 efficiency requirements, with power ratings ranging from 0.09kW to 630kW.

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