Xi'an Simo as a Low Voltage AC Motor supplier. Our motors are widely used in electric power, coal, petroleum mining, metallurgy, railways, transportation, chemical industry, agriculture, water conservancy, aviation, navigation and high-tech fields. At the same time, we are also the designated auxiliary motor supplier for the Ministry of Railways and GE. It has a complete sales service system and has established more than ten after-sales service branches in Jiangsu, Zhejiang, Yunnan, Guizhou, Sichuan and other provinces. It is well received by users for its fast and convenient after-sales service. We adhere to the operating principle of "market first, customer first". Our product marketing and service network covers all regions in the country and is exported to more than 40 countries and regions including North America, Europe, Africa, Southeast Asia, and the Middle East.
Simo high-efficiency three-phase asynchronous motors (center height H80 ~ H450) accords with GB/T755 Rotating Electrical Machines-Ratings and Performance, and motors energy eficiency grade meets with GB18613-2012 Minimum Allowable Values of Energy Efficiency and Energy Eficiency Grades for Small and MediumThree-phase Asynchronous Motors and the international standards lEC 60034-30-1 Energy Efficiency Class ofSingle-speed Three-phase Cage lnduction Motors. The efficiency is determined by the loss analysis method ofmeasuring input-output power (as specified in GB/T 1032).This series of motor casings are made of high strengthened gray cast iron, the coil is made of high qualitycorrosion-resistant copper wire, The protection of the housing is lP55, which meets the reguirements of GB/T4942.1and lEC 60034-5. The mounting dimensions meet with the international standards of lEC 60072 and GB/T 4772.1.and the cooling types are lC411 and lC416. This series of motor are suitable for continuous working system (S1).
What are the advantages of simo low voltage ac motor
Low Loss：The loss power of motor includes stator copper loss, iron loss, rotor copper loss, mechanical loss and additional loss. The motor will experience many kinds of power losses during operation, which are the main reasons for the efficiency of the motor Specifically. Simo low voltage three phase motor can reduce such losses mentioned, improving the efficiency of the motor greatly.
High Efficiency： Low voltage three phase asynchronous motor can convert electric power into mechanical energy more effectively during operation, thus realizing high-efficiency operation In addition, the design and manufacture of high-efficiency motors will have some cost, but it is of great significance to energy saving and environmental protection.
Compact Structure: The structural compactness of the motor is mainly reflected in its design and construction. By optimizing the layout and connection of various components, the whole motor is more compact. The basic structure of the motor includes three parts: stator, rotor and transmission mechanism.
Stable Operation: The low voltage three phase can be operated stably, which not only requires the electromagnetic torque equal to the load torque, but also requires that the system can be restored to the original state after being disturbed, that is, the mechanical characteristics of the system and the load characteristics have an intersection point and this intersection point has a specific dynamic stability condition.
Low Vibration: Series low voltage motor is optimized from design, manufacture to the installation and maintenance, ensuring the stable operation and reliability.
Low Noise: There are many reasons for motor noise, including ventilation noise, electromagnetic noise and mechanical noise Ventilation noise is mainly produced by the fan or other ventilation components and the air vortex formed by the rotation of the rotor. Electromagnetic noise is the vibration caused by the radial force produced by the magnetic field interaction between stator and rotor in the air gap. Series low voltage asynchronous motor optimizes the design, improves manufacturing, assembly accuracy and use, as well as strengthen maintenance, thus, reducing the motor noise.
Long Service Life: The life span of an electric motor is not only related to its design and manufacturing, but more importantly, its reasonable use and maintenance during use. Simo low voltage motor, with proper electrical and mechanical maintenance, proper operation, and correct use, its service life is effectively extended.
Types of low voltage ac motor
YE3 series three-phase asynchronous motor
YE3 series high efficiency and energy-saving three phase asynchronous motor is independently developed by our company. The cooling type of this motor is lC411. Motor performance meets GB/T 28575Specifications for YE3-series (lP55) High Efficiency Three Phase Induction Motor (Frame size 63-355) or JB/T10868"YE3 Series ( lP55 ) Three Phase Asynchronous Motor Technical Conditions( Frame Size 355-450).
YE4 series three-phase asynchronous motor
The efficiency value of YE4 series low voltage high efficiency motor complies with the grade 2 energy efficiency standard in GB 18613-2020 and is consistent with the IE3 in the international standard lEC 60034-30 Energy Efficiency Class of Single-speed Three-phase Cage InductionMotors. This series of products can completely replace the obsolete products of low-voltage three-phaseasynchronous motors, such as Y, YGM, YGM2 and YE2-series.
YE5 series three-phase asynchronous motor
YE5 series low voltage three-phase motors have the advantages of excellent performance, high efficiency, energy saving, largetemperature rise margin, long life, low vibration, excellent starting performance, nice appearance and high reliability.which are commonly used to drive water pumps, fans, compressors, conveyors and other transmission machinery inenergy conservation and environmental protection transformation projects, national water conservancy projects, etc.
YVFE2 series variable-frequency speed-regulating three-phase asynchronous motor
YVFE2-series of motor is a variable frequency and speed regulating three phase asynchronous motor derivedfrom YE2-series of motor. The coolant mode is 1C416. This series of motor can completely replace YJTG, YVF2-
series low-voltage variable frequency speed regulating three phase asynchronous motor.In terms of structure, the cooling fins are in the form of parallel and vertical distributions.
YVFE3 series variable-frequency speed-regulating three-phase asynchronous motor
The structure of YVFE3 series frequency conversion motor is noveland the shape is unique. The terminal box is at the top, which is convenient for users to connect. The designs of partssuch as base and end shield are reasonable, which makes the whole machine lower in both noise and vibration. Theaxial flow fan is used for forced ventilaion to ensure that the temperature rise of the motor does not exceed thespecified value during long-term operation at low speed and constant torque. Full consideration is given to theadverse effect of the power supply of the inverter on the motor design to ensure the motor's overload capacity at high
frequencies and to maintain constant torque output at low frequencies.
YVFE4 series variable-frequency speed-regulating three-phase asynchronous motor
Compared with other speed regulating systems, YVFE4 series variable frequency motor has the advantages of significant energy saving effect, good speed regulating performance, wide speed range, low noiseow vibration, easy eouioment with various inverters at home and abroad.
YVFE5 series variable-frequency speed-regulating three-phase asynchronous motor
YVFE5 series speed-regulating three phase motor can be widely used in the speed regulation of constant torque and power in light industry, textile, chemical industry, metallurgy, machine tool, etc., and in the speed regulation of energy-saving in fans, pumps, etc., which helps to achieve the automatic control of thespeed regulation system.
Common materials of low voltage ac motor
Cooper
Copper is a very ductile metal and can be drawn into round wires with different diameters. Based on the diameter, the current carrying capacity of copper winding wire varies. For example, thinner wires are used in headphones, charging cables etc. Whereas, thicker copper wires are used in transformers, motors etc. Copper can be drawn into flat shapes to form rectangular winding wires. Rectangular winding wires are integral components in compact and high-performance applications like electric vehicle motors, EV power trains etc.
Steel
Silicon steel is the most common lamination material for motor cores. It offers high electrical conductivity, low hysteresis loss, excellent corrosion resistance, and relatively low cost. Electrical steel laminations are perfect for larger machines where cost-effectiveness and energy efficiency are prime considerations.
Alongside its strong structural integrity, offering long-lasting performance assurances even under extreme physical stress environments.
Silicon steel also offers good shielding properties against electromagnetic interference. Therefore, it is useful in equipment where the radiation needs minimizing, such as medical instrumentation or transport systems like railroads.
Cast Iron
Cast iron is a good choice for an engine block. It is easily sand cast, easy to machine, capable to resist piston wear quite well, and inexpensive as a material. Others have attempted to use things like Aluminum or even more exotic materials like Magnesium. But there are always additional expenses in those cases, and additional complexity. In the end, while an aluminum block is lighter, it just doesn’t stand up to wear as a cast iron block does.
Silicon steel sheet
Silicon steels are ferritic alloys of iron and silicon that have magnetic properties which make them useful in motors and transformers. The silicon additions improve magnetic softness and increase the electrical resistivity. They also have the undesirable effects of decreasing the Curie temperature, reducing the saturation magnetization, and of embrittling the alloy when the silicon additions exceed about 2 wt.%. The embrittling effects of silicon make it difficult to produce silicon steels with more than about 3 wt.% silicon. The silicon steels are produced in two forms, highly textured grain-oriented alloys and alloys in which the grains are not oriented. Grain orientation is carried out to align the magnetic easy axis.
Application of simo low voltage ac motor
Machine tools
The application of motor in machine tools is mainly embodied in improving productivity and machining accuracy and ensuring machining efficiency. The application of motor in machine tools mainly involves two types: spindle motor and linear motor, each of which plays an indispensable role in the operation of machine tools. Spindle motor: Spindle motor is one of the core components of NC machine tools, which is mainly responsible for driving tools for machining. Linear motor: With the application of linear motor with direct drive technology in high-speed machine tools, it is more and more extensive Compared with "Rotary Servo Motor Ball Screw" drive, linear motor can improve positioning accuracy, reproduction accuracy and absolute accuracy because of its simple transmission mechanism, which can interpolate the lag problem and is easy to realize.
Water pumps
Motors are widely used in water pumps, covering almost all types of water pumps. Water pump motors, also known as pump motors, are mainly used to drive water pumps to work, and their applications include, but are not limited to, transportation, hybrid printing, agricultural machinery, video processors, etc. The choice of pump motor is mainly based on the shaft power. Generally, the power of the motor will be greater than the shaft power by one grade. For example, if the shaft power is 15kW, the motor of 18.5 kW should be selected The number of poles of the motor is determined according to the actual working conditions.
Fans
The application of motor in fan is mainly reflected in the following aspects: drive the fan to run, accurate control, fault detection and protection, energy saving and environmental protection. This motor has the characteristics of high efficiency and energy saving, and is widely used in places where high efficiency ventilation and ventilation are needed, such as tunnels and underground high-level civil buildings. The application of motor in fan is not limited to providing power, but also includes precise control, fault detection and protection, etc. It is of great significance to improve the performance and efficiency of fan.
Compressors
An air compressor electric motor consists of two main parts, the stationary stator and rotating rotor. The stator, connected to the three-phase mains supply, produces a rotating magnetic field. Energy becomes converted into movement, i.e. mechanical energy with the rotor.The current in the stator windings creates a rotating magnetic force field, which induces currents in the rotor. This results in a magnetic field there as well. The interaction between the stator's and the rotor's magnetic fields creates turning torque, making the rotor shaft rotate.
How to maintain low voltage ac motor
Operation Environment
The operation altitude shall not exceed 1,000m and the ambient air temperature varies with seasons, but the maximum temperature shall not exceed 40℃ and the minimum temperature shall not be lower than -15℃.The high relative humidity of the ambient air is 100%, and the high absolute humidity is 25g/m³.
Mechanical Inspection
After receiving the motor, after unpacking immediately to check whether there is any damage during transportation, and carefully remove the dust on the motor and the anti rust coating at the shaft extension; if any damage is found, please inform the transporter immediately. Check whether the spare parts are completely assembled and whether the fasteners are loose or fall off. For the motor with shaft extension fixed device, the fixed device of shaft extension shall be removed first, and then the rotor shall be rotated by turning gear to check whether the rotation is flexible.
Electrical Inspection
The insulation resistance of motor shall be measured with 500V megger, and the value shall not be less than 0.5mΩ. The humidity heat type motor shall not be less than 1mΩ. If it is lower than the above requirements, it should be dried.
Motor Operation
The motor can be started directly with the power supply. The step-down starting if the power supply capacity is insufficient.The power supply of motor shall be equipped with multi-channel protection devices such as overheat protection, short-circuit protection, open phase protection and zero sequence protection, so as to prevent single protection failure. The setting value of the protection device can be adjusted according to the rated current value on the motor nameplate, but the setting value shall not exceed the rated value of the motor nameplate. When the deviation between frequency (at rated voltage) and rated value exceeds 1% or the deviation between voltage (at rated frequency) and rated value exceeds 5%, the motor cannot guarantee continuous rated power output. Overload is not allowed for motors in continuous operation.
Storage and Lifting of Motor
The motor should be always stored in the dry, vibration-free and dust-free indoor environment, and should not be stored in the wet warehouse with acid and alkali, rats or other easy corrosive gases. For the motor without being installed temporarily, the machining fitting surface (such as shaft extension and flange) of exposed parts of motor should be coated with anti-rust oil for protection in case of corrosion.
Components of low voltage ac motor
Rolling Bearig
Roller bearings — also known as rolling-element bearings — are similar to ball bearings in that they are designed to carry a load while minimizing friction.
Sliding Bearing
Sliding bearings are bearings where only sliding friction is generated. The shaft is generally supported by the sliding surface, with oil and air in between to facilitate sliding movement.
Coil
The working principle of motor coil is based on the interaction of electromagnetic induction and electromagnetic force A magnetic field is generated when a current passes through the coil.
Insulation Material
Insulation materials used in motors include many types, which can be mainly divided into the following categories: Film and composite materials for electrical purposes, such as polyester film, polynaphthyl ester film, polyimide film, etc., used for winding insulation and winding gasket insulation of motor coils Insulating mica and its products: Natural mica such as muscovite and phlogopite have good electrical and thermal properties.
Silicon Steel Sheet
The role of silicon steel sheet in motor is to improve the resistivity and maximum permeability of iron, coercivity, core loss (iron loss) and magnetic aging Silicon steel sheet used in motor is also called electrical steel sheet, which is an important electrical material and is mainly used to manufacture the core of motor, generator and transformer.
Temperature Detector
Function of a motor temperature sensor Motor temperature sensor is a kind of equipment used to measure the temperature of motor It can be installed on the motor to monitor the change of motor temperature.
Process of low voltage ac motor
Stator
The fixed part of a motor called the stator on which a pair of stationary main poles for DC excitation are installed Stator windings can be divided into two types: centralized and distributed according to the winding shape and embedded wiring These windings generate magnetic fields when they are energized to provide the necessary electromagnetism for the operation of the motor. Stator punching sheet adopts high-speed multi-slot punching stator core adopts external pressing process winding is manufactured by special equipment manual off-line vacuum impregnation electrical insulation test.
Rotor
The rotating part is called rotor. It is equipped with an armature winding that generates induced electromotive force to act as a rotating magnetic field after being electrified The rotor rotates because the magnetic field generated by the stator interacts with the current in the rotor to produce electromagnetic torque to drive the rotor to rotate. The rotor punching sheet adopts high-speed multi-groove punching rotor core adopts centrifugal casting aluminum process.
Frame
The main function of the motor base is to fix the stator core and the front and rear end covers to support the rotor and play a role in protection and heat dissipation. The frame plays an indispensable role in the working principle of the motor It is the basic part of the motor structure to ensure that the motor can run stably and efficiently In addition, the design and material selection of the machine base also have an important influence on the performance and life of the motor. Working procedures such as punching the end face of the inner hole of the milling foot lathe.
Final Assembly
Firstly, the iron core is fixed into the stator slot and an insulating material is injected to fix the iron core inside the stator slot. Then, the electromagnetic coil is wound on the stator slot and connected with the iron core. Then, install the rotor and rotor bearings, and finally install the end cover bracket and other components to complete the final assembly of the motor. This series of steps together constitute the basic production process of motor final assembly to ensure that the final product meets the design requirements.
FAQ
Q: What is a low voltage motor?
Q: Where are low voltage motors used?
Q: Why use low voltage?
Q: What is a three-phase motor?
Q: What is frequency controlled motor?
Q: What is the main standard for low voltage electrical installations?
Q: Which is better roller bearing or ball bearing electric motor?
Q: What is motor terminal box?
Q: What is motor wiring?
Q: Why the motor can not start?
Q: What should you do when the motor has abnormal vibration?
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