11KW YZTDseries for tower crane changing- poles multi -speed three-phase motor for tower crane
- Ref Price:
-
- Loading Port:
- Qingdao
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 set
- Supply Capability:
- 1000 set/month
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Packaging & Delivery
Packaging Details: Carton/ Wooden box or according to customer's requirement
Delivery Detail: Within 20 days after30% deposit
Prompt Quotation, Competitive Price
100%tested, Guaranteed Quality, 100% copper wire, Cold-rolled silicon steel sheet
Good performance.
Energy saving ,Long working life .
motor with ISO9002-2000, CCC
YZTD Series is specially developed for tower crane and other construction machinery electric drives. It is up to the demand of national standard GB755-87"the bisic technology demand of rotary electric motor"and industrial standard"YZTD variable poles multi speed three-phase motor for tower crane". the product's features are high speed ratio, low starting current, high starting torque, strong overload capacity, simply operation and convenient maintennance,etc.
Detailed information:
Power range: 0.5-315kw.
Poles: 4//16/24.
Protecting level: IP44/IP54
Cooling way: IC411.
Installation way: B3 or customization.
Rated voltage: 380v / 440v.
Rated frequency: 50Hz/ 60Hz.
working method: high speed, medium speed S3-40%, low speed S3-25%.
Working temperature: F:-20°c to 40°c, H: -20°c to 60°c .
Altitude: lower than 1000m.
Addition: Can be made according to your requirements
Features:
High efficiency and low energy consumption.
Low noise and vibrate.
Simple operation.
Easy maintenance.
- Q: What is the general ac motor in electrical design?
- It is mainly based on the characteristics of the circuit and the load, investment, etc
- Q: Three phase ac synchronous motor is different from three-phase ac asynchronous motor
- Asynchronous motor stator into alternating current (ac), is to produce a rotating magnetic field, and the rotor magnetic fields generated by induction, so that the two magnetic field effect, make the rotor turns with the stator's rotating magnetic field. The rotor is slower than the stator rotating magnetic field, a slip, sync so called asynchronous machine. The rotor of synchronous motor is made by adding direct current to the same magnetic field, so that the rotor will follow the stator rotating field to synchronize with the other.
- Q: Can alternator speed improve power generation?
- From electromagnetic theory, rotor and stator is closely linked, active and reactive power generator are by the output of the stator, rotor torque decide the size of the active power and rotor winding dc current determines the amount of reactive power. In structure, a generator is identical to an electric motor, which is usually composed of stator, rotor, end cover, and the electric brush. The stator is composed of the machine seat. Stator iron core, wire wrap winding, and other structural parts that are fixed in these parts. The rotor is made up of rotor core, rotor magnet (magnetic coil), slide ring, (also known as brass ring), fan and shaft. The generator and motor are completely reversible, and the rotor is rotated when the voltage is added to the stator winding of the generator and motor. When the rotor of a generator or motor is rotated by an external force, the rotor is rated at synchronous speed, and the stator can generate a voltage and emit electricity. Just because the design has the focus, generator for motor or motor for generators, efficiency are below 70% of the rated, so generally will not replace, only small capacity will choose instead.
- Q: Is a single-phase carbon brush motor a dc motor or ac motor?
- use Synchronous motors are used mostly in large generators, while asynchronous motors are used almost exclusively in motor situations. The synchronous motor can adjust the power factor by the excitation. The power factor of asynchronous motor is adjustable, so in some large factories, application of asynchronous motor is large, can be added a synchronous motor for condenser, used to adjust the plant and the power factor of power network interface. However, due to the synchronous motor of high cost, maintenance workload is big, now commonly used capacitance compensation power factor. Synchronous machine with exciting winding and the slip ring, need the operator had a higher level to control excitation, in addition, compared with those of asynchronous machine maintenance free maintenance workload is bigger; So, as an electric motor, most current asynchronous motors are chosen.
- Q: Three-phase ac motor star row and delta connection?
- Three-phase winding delta connection Three-phase asynchronous motor winding delta connection, when the power of a phase (L3) circuit, by the winding with cz series and winding ax again after parallel hybrid circuit of stator current whether meet the phase condition, the need to be calculated to determine. Because of the three-phase symmetric winding structure, the three-phase excitation impedance is equal, namely, Zma = Zmb = Zmc = Zm < Φ, the three phase stator current are: A = 0 12 / (Zm < Φ) = < - Φ, 0 = 0 c = 12 b/(2 Zm < Φ) = / 2 < - Φ. The current in the three-phase winding is visible, but the current phase is the same, and the current is not satisfied with the phase condition. Three-phase winding delta connection, three-phase asynchronous motor open phase, not only unable to start, lacks when starting the stator current is very big, if not in time to cut off the power supply, motor will be destroyed immediately. This is quite different from normal starting and must be taken seriously.
- Q: How does the three-phase ac motor identify the phase
- The star delta launch is a time relay for three ac contacts String resistance and reactance start are now rare, and resistance is usually not in the distribution box The circuit of the auto-reducing voltage is a little bit closer to the star delta, but it is applied to the motor that is more than 90KW, and the auto-transformer is in or near the cabinet
- Q: Does ac motor control circuit have to be communicated?
- When coil by current, under the action of permanent magnets, turn through the attraction and repulsion, when it turn to balance and magnet, the original through the electric line is corresponding with electric contact patches on the commutator I leave, and brush connected to the group that accord with steam coil corresponding contact, so keep repeating, dc motor turns up
- Q: How to control the start-stop of 220V ac motor with a single chip? What type will you use for the relay
- The digital output of the single chip is high and low, which can be used to control the power or power failure of the cable, so as to make the contact of the relay contact or break. The relay parameters include two main points. Line pack voltage, contact voltage current. Also consider the volume and connection mode. 3, line pack voltage, 5V, 9V, 12V, etc. Let the coil be connected to the voltage. The simple solution is to control NPN directly. Vcbo, the CEO of Vcbo generally meets the requirements. The current amplification and dissipation power are sufficient to satisfy the line package drivers. The contact point is usually dc voltage current, ac voltage current each set of parameters. According to the actual power failure flow choice. 5, with the line package voltage parameter, the contact parameter, the simple judgement of the volume size, select the relay of the good brand, such as omron. Wish you success!
- Q: The speed regulation performance of dc motor is very good. Why need ac motor?
- Because dc motors require a powerful dc power supply, ac motor is not needed. 2, dc motors (direct current machine) is to point to to direct current (dc) can be converted into mechanical energy (dc motor) or can convert mechanical energy into direct current (dc generator) the rotation of the motor. It is an electric motor that can convert direct current and mechanical energy. When it is running on an electric motor, it is a direct current motor, converting electrical energy to mechanical energy. The generator is run by a dc generator that converts mechanical energy into electricity. "Ac motor" is a machine used to realize mechanical energy and exchange electrical energy. Ac motor has become the most commonly used electric motor due to the huge development of ac power system. Compared to the ac motor and dc motor, with no commutator (see dc motor commutator), so the simple structure, easy fabrication, quite strong, easy to make a high speed, high voltage, high current, the large capacity motor. Ac motor power covers a wide range, ranging from a few watts to several hundred thousand kilowatts and even a million kilowatts.
- 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
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11KW YZTDseries for tower crane changing- poles multi -speed three-phase motor for tower crane
- Ref Price:
-
- Loading Port:
- Qingdao
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 set
- Supply Capability:
- 1000 set/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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