The structure is simple
Easy to manufacture
Small insulation margin
(1) Among the electrical equipment of the same voltage level, the impulse withstand voltage level of the insulation of the rotating motor is the lowest.
(2) The residual voltage of the arrester used to protect the rotating motor is very close to the impulse withstand voltage of the motor, and the insulation margin is very small.
(3) In turn to turn insulation, the steepness of inrush wave is strictly limited. All aspects of protection requirements need to be considered comprehensively.
Classification of insulating paint
Insulating paint is composed of three parts: paint base (resin, asphalt, dry oil, cellulose, etc.), flux or diluent (benzene, toluene) and auxiliary materials (desiccant, pigment, anti-virus agent). It can be divided into impregnating paint, covering paint and adhesive paint.
It is used for impregnating motor windings and fiber materials to improve the electrical performance, thermal conductivity, heat resistance, moisture resistance of insulation and the integrity of windings. In recent years, the development of solvent-free impregnating paint, the most widely used are polyester and epoxy, gradually replacing the cyanoalkyd paint.
Also known as brushing paint or coating paint, the paint is applied on the impregnated insulation surface to form a good mechanical performance, smooth and water-resistant insulation film, so as to enhance the moisture-proof ability and prevent the effect of dust, dirt and chemical substances on the insulation, such as enameled wire paint, silicon steel sheet paint, semi conductor paint, etc.
It is used to bond various insulating materials, such as mica, paper, cloth, etc. In addition to the electrical performance, especially the adhesive force. The commonly used adhesive paints are alkyd resin paint, shellac paint, phenolic resin paint, epoxy polyester paint, etc.
Ever-Power Group Co., Ltd. specializes in the production of all kinds of mechanical transmission and hydraulic transmission: planetary gearbox, worm gear reducer, in-line spiral gear reducer, parallel shaft spiral gear reducer, spiral bevel gear reducer, spiral worm gear reducer, agricultural gearbox, tractor gearbox, automobile gearbox, power output shaft, special reducer and related gear parts and components Other related products, chain wheel, hydraulic system, vacuum pump, hydraulic coupling, rack and pinion, chain, timing pulley, UDL transmission, V-belt pulley, hydraulic cylinder, gear pump, screw air compressor, low backlash worm reducer, etc. In addition, we can customize transmission, gear motor, motor and other hydraulic products according to customers’ drawings.
There are many kinds of rotary motors. It can be divided into generator and motor according to its function, DC motor and AC motor according to its voltage property, and synchronous motor and asynchronous motor according to its structure. Asynchronous motor can be divided into three-phase asynchronous motor and single-phase asynchronous motor according to the different number of phases; according to the different rotor structure, it can be divided into cage type and wound rotor type, among which cage type three-phase asynchronous motor is the most widely used and the largest demand in various motors because of its simple structure, convenient manufacture, low price and reliable operation.
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Xihu District, Hangzhou City, Zhejiang Province, China