Motors are often utilised to drive gear these kinds of as blast furnace supporters and sintering followers in the metallurgical sector
I. Overview
T collection huge-scale three-phase four-pole, 6-pole synchronous motor and many others are sequence of products designed by our business on the foundation of introducing and absorbing innovative technological innovation at house and abroad. It is commonly used in petroleum, chemical, electric powered energy and other industries, and is used to generate large-inertia mechanical loads this kind of as fans, pumps, and compressors.
This series of motors adopts new technologies, new supplies, new procedures, exquisite content variety, innovative manufacturing, small dimensions, light-weight fat, high effectiveness, lower sounds, low vibration, risk-free and reliable procedure, and hassle-free use and routine maintenance.
Two implementation expectations
GB755 Rotating Motor Score and Functionality
CZPT circumstances of JB/T2224 big AC three-section 4-pole synchronous motor
GB/T1571 Three-section synchronous motor test technique
GB/T997 motor structure and installation variety code
GB/T1993 Rotating Device Cooling Technique
GB/T4942.one Motor shell defense quality
GB/T10068 Rotating motor vibration measurement strategy and restrict
GB/T10069 Rotating Equipment Sound Measurement Method and Restrict
3. Fundamental technical parameters
Electrical power assortment: 400~40000KW
Voltage: 6000, 10000V
Speed: a thousand, 1500r/min
Rated frequency: 50HZ
Safety amount: IP44, IP54
Insulation course: F
Quota: S1
Cooling technique: IC81W, IC91W
Set up technique, IM1001
*Can be created in accordance to other parameters in accordance to consumer demands
4, technical traits
4.1 By adding a “Γ”-formed damping ring to the sound magnetic poles, the motor can provide a big adequate commencing torque, a pulling torque and a reduced starting existing, which can make certain the easy starting and acceleration of the motor, and have a small effect on the energy grid, and meet the person load demands .
4.two The use of new insulating supplies and insulation technological innovation, with tremendous robust insulation and voltage resistance.
four.three The motor adopts course F insulation, and the temperature rise is assessed according to the temperature rise limit worth of course B insulation. It has a extended services existence and a very good air flow method, which can make the device beneath various operating problems this kind of as startup, overload, overexcitation, underexcitation, and shutdown. Make certain that the temperature rise of every component does not exceed the allowable restrict.
four.4 Through precise calculation and investigation, the framework of the rotor is identified. The substantial-energy motor adopts the built-in framework engineering of shaft and choke to make the motor secure and reliable.
four.five The safety unit is innovative and total.
four.five.1 The stator windings and bearings are outfitted with temperature detection units, which can detect, alarm and vacation.
4.5.2 Shutdown space heater with anti-condensation influence.
Five, composition type
5.1 The structure of this series of motors is generally horizontal, and the cooling technique is a closed circulating air cooling program, which is located at the bottom of the motor. For additional-high-energy motors, it is of box-type structure and drinking water-cooled.
five.2 The motor magnetic materials adopts higher-top quality chilly-rolled silicon metal sheet with large magnetic permeability and lower reduction, which enhances the operating effectiveness of the motor and lowers the running price of the motor. Rigid stator construction, the iron main is fixed on the supporting ribs of the frame in the circumferential path by means of the dovetail groove and compressed in sections with substantial force, and all the forces are transmitted to the foundation through the frame, minimizing vibration. The damping ring and the magnetic pole undertake a unique correcting method to stop malfunctions induced by inadequate contact all inner conductive physique connectors, fasteners, supports and screws on the rotating human body have anti-loosening measures to guarantee firmness and trustworthiness.
5.three The stator winding is handled with VPI as a entire dipping paint, which has substantial electrical efficiency, mechanical toughness, insulation performance, moisture resistance and thermal balance.
5.four The bearing is a sliding bearing with force oil circulation, which is mounted in a bearing seat made of solid steel. The sliding bearing has a spherical bearing that can routinely alter the heart. The inner surface area of the bearing is coated with a layer of Babbitt alloy to prevent electricity era Lead-tin eutectic takes place when the machine is operating at higher temperature. The bearings are insulated to stop shaft currents.
six. Problems of Use
six.1 Voltage fluctuation: ±5% (It can operate at ±10% below the condition of 7.3 in GB755).
six.2 Frequency fluctuation: ±2%.
6.3 The altitude does not exceed 5000m
6.4 The optimum ambient air temperature does not exceed +50ºC,
six.five The inlet temperature of the cooling drinking water of the air cooler ought to be retained inside of the selection of six~33ºC, the force of the cooling h2o is .3Mpa, and the cooling water should have no corrosion impact on copper and iron.
6.6 If the above standard situations of use are exceeded, corresponding actions or unique orders need to be taken.
Seven, design description
Motor with framework kind IM7311: Motor with structure kind IM1001
T7000-4/1730T1120-415000KW
Outer diameter of stator main (Φ1730mm) Rated electricity (15000KW)
Quantity of poles (four poles) Number of poles (4 poles)
Rated electrical power (7000KW) Heart height (1120mm)
T series synchronous motor T collection synchronous motor
8. Ordering directions
eight.one Prior to placing an purchase, make sure you refer to the solution catalog of this series to clarify the required product model, technical specs and other data. If there is any discrepancy in between the necessary types and technical specs, make sure you get in touch with our company.
eight.two When purchasing, the motor model, rated energy, velocity, rated voltage, rated frequency, safety degree, load minute of inertia, rotation path, set up kind, and so forth. should be indicated.
eight.3 The specialized knowledge sheet in the catalog only lists the appropriate data of motors with rated voltages of 6KV and 10KV. If end users demand other voltage levels, our firm can also provide specialized info when ordering.
eight.4 The technical info and proportions in the sample are only for reference when end users select versions. The official info will be supplied by the business following the deal or technological arrangement is signed.
eight.5 If you have any other specific requirements, this sort of as brushless excitation, variable frequency start off, and many others., please offer the needs and signal the appropriate technical agreement when purchasing.
