Standard three phase asynchronous motors
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- 50 unit/month
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NORD production of 4 very ordinary three-phase ac motor and three-phase ac braking power range 0.12 kW to 200 kW.Production of motor by NORD for independent brands, the production process does not involve the subcontractor, so there will be no bottlenecks, our customers can enjoy the shortest delivery time.If you use a NORD energy-saving three-phase motor, the maximum can save up to 40% of the energy consumption.NORD efficiency three-phase motor is also in line with the 1992 rules in the energy bill (EPACT) in the United States.
Any applicable national, local and system-specific regulations and requirements must also be observed!
Special designs and design variants may differ with regard to technical details. If anypoints are not clear, it is urgently recommended that you consult the manufacturer stating the type designation and motor number or have the maintenance work performed by NORD.
2.1 Field of Application
Use of the motors:
The motors may only be used for their intended purpose. The motors are designed with at least IP 55 protection (for degree of protection see name plate). They may be installed in dusty or damp environments. The necessary degree of protection and any additional precautions required always depend on the operating and environmental conditions. For outdoor installation and vertical designs,
e.g. V1 or V5 with the shaft pointing downward, NORD recommends the use of the double fan hood option [RDD]. The motors must be protected against intense sunlight, e.g. by means of a protective shield. The insulation is tropicalised.
Installation altitude: £1,000 m Ambient temperature: -20°C...+40°C. With standard motors, a greater ambient temperature range is permitted from -20°C...+60°C. The rated power must however be reduced to 82% of the catalogue value. If the maximum value of the ambient temperature is between +40°C and +60°C, the power consumption can be inversely interpolated linearly between 100% and 82%. The motor connection cables and the cable inlet glands must be suitable for temperatures ³ 90°C.
- Q: Is the motor for general electric tools ac motor or dc motor?
- Portable single-phase electric tool machine is series motor, more general application for alternating current (ac), but also runs on direct current series motor, the direct current (dc) will run according to the power supply is negative connection it is also different.
- Q: The alternating current is constantly changing, and how is the ac motor going to be controlled?
- Ac motor direction of rotation is not determined by the alternating current (ac) plus or minus half cycle of direction, but by the alternating current (ac) through a certain way of dealing with the rotating magnetic field generated by acting on the rotor, just like you with a permanent magnet circle around the compass makes a compass as the principle of spin the rotor rotation, its rotation direction depending on the direction of the rotating magnetic field.
- Q: Three phase ac synchronous motor is different from three-phase ac asynchronous motor
- Structure and principle of The stator winding of synchronous motor and asynchronous motor is the same, the main difference is the structure of the rotor. The rotor of synchronous motor has dc excitation winding, so it needs to be coupled with excitation power supply to introduce current through the slide ring. The rotor of the asynchronous motor is a short-circuit winding, which generates an electric current through the electromagnetic induction. Asynchronous motor is simple, low cost, easy to install, use and maintenance. It has been widely used. Disadvantages low efficiency, low power factor of power grids. And synchronous motor with high efficiency is the capacitive load, can improve the power factor of power grid. Multi-purpose mining large not ready.
- Q: The rated speed of ac motor
- It is impossible to achieve 1500 RPM if there is no mechanical loss in itself, such as bearing friction, etc
- Q: What is the ac motor made up of?
- Alternator is divided into two parts, the stator winding and rotor winding three-phase stator winding Angle of 120 degrees of electricity distribution according to the differences in the shell, rotor winding is composed of two pieces of a claw. When the rotor winding is connected to a direct current, the two polar claws form N poles and S poles. The line of magnetic force starts from the N pole, and enters the stator core through the air clearance to the neighboring S pole. Once the rotor rotation, the rotor winding will cut lines, mutual difference 120 KWH in stator winding sine electromotive force, the Angle of the three-phase alternating current (ac), through the six of silicon diode rectifier components into a dc output. As the output voltage of the generator increases with the speed of the engine, the voltage regulator should be adjusted to meet the need. The modern car's generators are compact, putting an integrated circuit regulator into a generator and filling it with a multi-tube form. For example, the xiali car generator has eight semiconducting tubes, six rectifier used only, the other 2 is used only for three-phase neutral point voltage rectifier output, so as to improve the power of generator.
- Q: Is it still a communication welder
- Never put off till tomorrow what you can do now promotion of inverter dc welding machine and high recognition are very popular, and in recent years the development of the quality of welding inverter also promoted to a higher level, failure rate also fell dramatically; The welding performance of the inverter welder is much better than the ac welder, so its market share is higher (compared to the ac). And in other series of welders (e.g., argon welding, square wave alternating current, gas welder, plasma...) The reverse welder's share is higher
- Q: Multiple choice: the armature winding of large and medium ac motor is often used for the distribution winding of a double-spaced short distance. A reduces the current harmonics B, reduce the cost C reduces the air gap harmonic magnetic field
- A C D short distance can reduce the high frequency harmonic potential, which can also reduce the harmonic current and the magnetic field, because of the double layer, the cost increases
- Q: What happens to the ac motor plus dc
- Certainly not, if you add 24V to dc, there is an estimate of noise, as described above, a home rectifier
- Q: How to control the start-stop of 220V ac motor with a single chip? What type will you use for the relay
- The current amplification comes directly with a triode, which is based on the control voltage of your relay. The 12-24v dc relay is usually selected. The protective circuit of heat relay is optional according to need.
- Q: What's the total number of ac motor governor? The most common, each principle, the detailed point, the master thank you Please be more careful, the principle means thank you
- Now the best ac motor speed performance is frequency conversion governor, it is accomplished by changing motor power frequency speed regulation, large range of speed regulation, and the energy conservation, will be, slow growth, and can be a starter motor, but the price is relatively high. Another kind is called a magnetic transmission, price close to the inverter, but different principle, characterized by long service life, less maintenance, existing at present in large motor speed control applications. Simple ac motor speed regulator can adopt the method of current limiting, step-down, like electric fan speed governor, this control method is simple, but the load characteristics of the motor is poor, is only applicable to small motor and load stability.
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Standard three phase asynchronous motors
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 2 unit
- Supply Capability:
- 50 unit/month
OKorder Service Pledge
OKorder Financial Service
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