1440 Rpm Single 1 One Phasing 3 Horsepower HP Induction Motor Price
Recommendation
Product Description
| Model |
HP |
KW |
Currnet |
Speed |
Eff |
Power Factor |
Tn |
Tmax/In |
Tst/Tn |
| ML-100L1-4 |
3 |
2.2 |
12.6A |
1430 |
78% |
0.97 |
14.69 |
1.8 |
2.2 |
Company Profile
FAQ
What is the function of motor winding dip varnish besides insulation?
Winding dipping is an important and critical process in motor manufacturing. The heat resistance and thermal conductivity of the winding insulation can be improved by dipping. Before dipping, the insulation gap of the winding is filled with air, and the thermal conductivity is poor. After dipping, the insulating paint fills all the voids of the winding insulation, and the thermal conductivity is greatly enhanced. After the paint film is formed, the contact with the air can be reduced, which can delay oxidation and improve heat resistance.
The electrical properties of the winding insulation can also be improved by dipping. After dipping, the winding turns, the gaps between the phase and the insulating layer and the insulating material are filled with insulating paint, which basically eliminates air bubbles and forms solid insulation with strong pressure resistance, thereby improving the electrical performance of the winding insulation. .
After the winding is varnished, the moisture resistance and chemical stability of the winding insulation can be improved. The winding insulation treated with special dipping paint also has the functions of anti-dew, anti-corona, anti-corrosion and anti-oil pollution.
Dip paint also to improve the mechanical strength of the winding. After dipping, each wire of the winding is bonded into a solid whole, which strengthens the mechanical strength of the winding and reduces the loosening and abrasion of insulation caused by electromagnetic force, vibration, thermal expansion and contraction.
Motor knowledge expansion
1 Insulating paint is a special kind of paint
Insulating paint, also known as insulating paint, is a kind of paint with excellent electrical insulation. It has good electrochemical properties, thermal properties, mechanical properties and chemical properties, mostly varnishes, but also colored paints. Insulating paint is a kind of special paint in paint. Insulating varnish is an important insulating material based on high molecular polymer, which can be cured into insulating film or insulating whole under certain conditions. Insulating paint is composed of base material, flame retardant, curing agent, pigment and filler, and solvent.
2 Classification and application of insulating paint
Dipping paint. Impregnating paint is divided into two categories: solvent paint and solvent-free paint. It is mainly used to impregnate the coils of motors and electrical appliances to fill the gaps and micropores. After curing, it can form a continuous and smooth paint film on the surface of the impregnated object, and Make it a solid whole.
Enameled wire paint. Enameled wire enamel is mainly used for coating insulation of enameled wire cores. Since the wire will be subjected to heat, chemical and various mechanical forces in the process of winding coils, embedding wires, etc., the enameled wire paint is required to have good coatability (that is, it can be evenly coated), and the paint film has strong adhesion. The surface is smooth, soft and tough, with certain wear resistance and elasticity, good electrical properties, heat resistance, solvent resistance, and no corrosion to conductors.
Overlay paint. Cover varnish is used to coat dipped coils and insulating parts, and form an insulating protective layer with uniform thickness on the surface to prevent equipment insulation from mechanical damage, atmospheric and chemical erosion, and improve surface insulation strength. Therefore, the cover paint is required to have the characteristics of fast drying, strong adhesion, hard paint film, high mechanical strength, moisture resistance, oil resistance and corrosion resistance. Covering paint is divided into alkyd paint, epoxy paint and silicone paint according to resin type. Compared with alkyd paint, epoxy paint has better moisture resistance, mildew resistance, internal drying and adhesion, and high hardness of the paint film. It is widely used in the surface coating of electrical equipment components in hot flash areas. Silicone paint has high heat resistance and can be used as a covering paint for H-class electrical appliances.
Silicon steel sheet paint. Silicon steel sheet paint is used to coat silicon steel sheet to reduce eddy current loss of iron core and enhance corrosion resistance. After the silicon steel sheet paint is applied, it needs to be dried at high temperature for a short time. It is characterized by thin layer, strong adhesion, hard, smooth, uniform thickness, oil resistance, moisture resistance, and good electrical properties.
Anti-corona paint. Corona discharge is a discharge phenomenon that produces blue halo due to the ionization of the air in the local space where the field strength is protruding (such as the sharp point of the electrode) in a highly uneven electric field. Anti-corona paint is generally made by mixing insulating varnish and non-metallic conductor (carbon black, graphite, etc.) powder. It is mainly used as anti-corona paint for high-voltage coils, such as coil ends with high voltage in large high-voltage motors. The industry requires anti-corona paint to have stable surface resistivity, strong adhesion, good wear resistance, fast drying speed, storage resistance, and anti-corona paint can be applied on the surface of the coil alone, or on asbestos tape and glass tape. It is wrapped in the outer layer of the coil, or coated with glass cloth and formed with the main insulation at one time.
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