Standard three phase asynchronous motors
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- Loading Port:
- Shanghai
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- Min Order Qty:
- 2 unit
- Supply Capability:
- 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:What are asynchronous motors and synchronous motors
- Symmetrical three phase winding ventilation with symmetrical three phase current, to produce a rotating magnetic field, magnetic field line cutting rotor winding, according to the principle of electromagnetic induction, rotor winding of e and I, rotor winding by the effect of electromagnetic force in the magnetic field, electromagnetic torque, which make the rotor rotation, the rotor output mechanical energy, drive the mechanical load. Rotor speed n < n0, so called asynchronous motor. S = (n0-n)/n0, which is called the slip rate, is an important parameter to the asynchronous (motion) machine. SN is the rated slip.
- Q:There is a difference between ac frequency conversion and dc frequency conversion
- To compare the differences, you must first understand the structure of the two. In order to realize the dc motor speed regulation, there are several ways: (1) in the winding internal series resistance, the method of reducing I increases the loss of the drag system, the mechanical performance is "soft", and now it is not necessary. (2) regulating the armature winding voltage U, which is by far the best method of regulating speed, has the following characteristics: A) the mechanical properties of the speed adjustment are constant, and the speed landing only changes with the armature voltage. B) to achieve stepless speed adjustment, zero speed adjustment C) because the main flux is constant, the motor rated current is constant, so the speed control process has a "constant torque" characteristic.
- Q:Why does the motor need capacitance when the machine starts?
- Only single phase ac motor USES capacitance, dc motor and three-phase ac motor do not need. The two single-phase motor coil does not produce a rotating magnetic field, must be in one of the series capacitance on the coil, make this branch of the current in another coil current in advance, the ability in a rotating magnetic field between the two coils, rotor rotation.
- Q:The properties of the single phase magnetic electromotive force of ac motor, the amplitude of its amplitude, the position of amplitude, and the frequency of the pulsations are related to the various factors
- The magnetic field generated from the electrotechnics, the three-phase alternating current (ac) is a rotating magnetic field, its speed n1 depends on current frequency f and rotating magnetic field of magnetic pole logarithmic p1, the relationship between them is: n1 = 60 f/p1
- Q:What is the power of ac motor
- Single-phase ac motor: single-phase ac motor is rated at the rated voltage by the rated voltage by the rated current by the power factor.
- Q:Single phase synchronous alternator working principle
- From the point of basic electromagnetic circumstance, a dc motor can be working for motor operation in principle, can also be used as a generator to run, are only different constrained conditions. On the two brush end of the dc motor, and dc voltage, input power to the armature, mechanical energy output from the motor shaft, drag the production machinery, become motor converts electrical energy into mechanical energy, such as prime mover drag dc motor armature, and without dc voltage on the brush, the brush end dc electromotive force can be drawn as dc power, output power, motor become generator converts mechanical energy into electrical energy. The same machine, which can be used as an electric motor or as a generator, is called the reversible principle in the theory of electric motors
- Q:Is permanent magnet synchronous linear motor is ac motor or dc motor?
- Permanent magnet synchronous motor is usually counter electromotive force trapezoidal wave, the armature current is for the square wave brushless dc motor, the counter electromotive force and the armature current is sine wave called a permanent magnet synchronous motor. The brushless dc motor usually adopts a full range winding to generate the trapezoidal wave counter electromotive force. In order to generate the sine wave, the permanent magnet synchronous motor requires a short distance or integral pitch, fractional slot, or oblique slot winding.
- Q:The difference between dc motor speed and ac motor speed regulation
- Ac motor speed control: by changing the ac motor speed control of ac motor power supply frequency, a logarithmic and slip electrical parameters, such as to realize the speed regulation technology.
- Q:What happens to the ac motor plus dc
- If you add direct current, you don't brake, you burn it. If you want direct current to be alternating current, you can add a rectifier, a supercharger.
- Q:Dc motor input direct current, after the commutator, does it change to alternating current?
- This. Don't know if you have seen direct current (dc) and alternating current waveform figure. Ac three phase similar to sine and cosine curve, and the dc voltage to a straight line, stable. Alternating current (ac) can be used to direct drive motor, because of the ac voltage is constantly changing, cause the direction of the magnetic field is constantly changing. But the direct current (dc) must pass the commutator can cause changes in the direction of the voltage, so that the motor rotation, this time you go to see a waveform diagram, is then a concave, convex, instantaneous changes, the current more precisely, so the general accuracy is higher, all like to use dc, especially for dc micro-motor.
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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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