Standard three phase asynchronous motors

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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. 


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Q:Does the step motor belong to ac motor or dc motor?
The stepping motor is not one of them. It is a special motor.I hope my answer will help you.
Q:What is the difference between the excitation winding of ac motor and the armature winding?
Only the synchronous generator and the synchronous motor have excitation winding and armature winding. The general ac asynchronous motor is not excitation winding. Squirrel-cage asynchronous motor points and winding type two kinds big, the same stator winding structure, the squirrel-cage rotor cage bar, wound rotor rotor coil is an external device (can change the rotor impedance to realize variable speed). The "armature winding" is the "main power circuit" of the motor. Which power of the rotor and stator coil is "armature", needless to say, most stator coils are "armature winding".
Q:What is the difference between a dc motor and a servo motor?
The dc motor is the magnetic field, which is moving in the field. Ac motor is a magnetic field rotating motion, while the conductor does not move. Dc motor are divided into stator winding and rotor winding. The stator winding magnetic field is produced. When general dc. The stator winding is fixed polarity of the magnetic field generated. The rotor flux direct current in the magnetic field force. The rotor in the magnetic field force then spin. Direct current institutions to build complex. Cost is high.
Q:Control the power ac motor with thyristor or relay?
I go to it more than one thousand watts of small motor with don't think so much speed is not necessary to use silicon controlled what contactor relays on the operation cost is too high it open just a matter of whomp up empty
Q:The difference between dc brushless motor and ac servo motor
The difference is on the: 1, dc brushless motor without encoder, the brushless motor without encoder can not be used for servo control, it can only be used for power drive. Ac servo motor band encoder, which can be used for servo control.
Q:What will be the result of the power supply to ac motor after the rectifier (not filtering)?
The ac motor will not be able to transfer the pulse direct current, the light is hot.
Q:How to judge a three-phase ac motor
How to measure the good and bad of the motor using the multimeter ohm. One, check to see if the road is open, U1 pairs U2 V1 to V2 W1 pair, check insulation U1 to V1, W1 U1, V1 W1 pair.
Q:What is the difference between alternating current motors and dc motors?
Upstairs is a little irrelevant answer, the first people ask is the difference, again is the motor, not the generator! How it works: Dc motor installed a constant magnetic field, after the stator coil zhongtong current is generated electromagnetic force, so they will move, but the direction of the electric current to change, so will generally use brush, contact with the terminal. So the cost is higher. It is commonly used in servo motor, measuring motor and excitation motor. The ac motor has only one winding and the rotor is squirrel-cage. When a single-phase sinusoidal current in the stator winding, the motor can produce an alternating magnetic field, the magnetic field strength and direction interplanting sine law of change at any time, but is fixed on the spatial orientation, say again so the magnetic field is alternation pulse magnetic field. This alternation pulse magnetic field can be decomposed into two at the same speed and direction of rotation are instead of a rotating magnetic field, when the rotor static, the two rotating magnetic field generated in the rotor torque of two equal and opposite, making synthetic torque is zero, so the motor can't rotate.
Q:Current ac motor has completely replaced dc motor
Definitely not. The performance of dc motor speed system is better, the advantage is that it can achieve smooth and economical speed adjustment, high precision and wide application. The speed adjustment of dc motor does not require the cooperation of other equipments, but by changing the voltage/current of the input, or the excitation voltage/current to speed the adjustment.
Q:Why is a single phase ac motor that can be adjusted by voltage
In simple terms, if the voltage is reduced and the rotor spins at the same speed, the stator gets a small current. Electromagnetic torque is reduced, in under the action of load torque, the same slip increase led to the decrease of the rotational speed, speed fall in reflection impedance decreases, and according to the size form again low impedance of the rotational speed of voltage and current of balance, and maintain at a low speed.

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