AC power frequency-changing speed-adjusting system progresses quickly with the technology of power electronics.To meet the market demand,Zhongda has developed Y2VP series 3-phase frequency-changing speed-adjusting asynchronyous motor on the basis of collection of domestic and foreign information and wide survey.All properties are equivalent to foreign counterparts and basic technical conditions conform to IEC60034:15 and GB755.
·This series features low noise,minor vibration,wide speed-adjusting range and novel appearance.
·This series are specially designed to match high-efficiency IGBT pulse width modulation frequency converter of foreign and domestic manufacturers directly,which basically eliminates the need for external filter.
·Motor of this series integrates all adventages of domestic and foreign counterparts and makes use of CAD technique.The design particularly considers slot shapes of stator and rotor as well as distribution of stator windings so that motor can work under the PWM frequency-changing power and acquire an expected inductance to control and reduce the time harmonics and a string of adverse effects of the space harmonics.In addition consider a certain allowance for the electromagnetic load of motor.Correspondingly guarantee the overload capacity under the high frequency and constant rpm output under the low frequency.
·The design of insulation considers the influence of high chopping frequency arising from the use of IGBT PWM frequency converter.Particularly take special measures to strengthen the turn-to-turn insulation in order to withstand the sharp impulse voltage repeatedly applied by high rate of voltage rise between turns.Tested turn-to-turn voltage with standing value is much superior to provisions of AC motor in the JB/T9615.2-2000.
·Y2VP series are same as Y2 series with respect to structural mounting dimensions,which provides convenience for matching and selection.It adopts IC416 cooling and reinforced ventilation with a separate axial fan to control the temperature rise within the permited range after a longterm.
This series has been tested under the frequency-changing power in the factory and proven in compliance with actual working conditions.
Zhongda Motors Co., Ltd (short for Zhongda Motors) is located in national high-tech new district in Wuxi, Jiangsu province, covers an area of nearly 50,000㎡, 2,500,000kW production capacity , 600 staff which include 138 college degrees or above, 66 developing engineers, 11 senior professional titles and 2 doctors. Zhongda Motors was founded in 1993, nearly 20 years of professional motor manufacturing experiences, good professional production ability and abundant human resources. Recently, by absorbing numbers of senior manager in business, professional technical stylist, perfect profession and strong influence in the field of motor industry, all of them are a development foundation for Zhongda Motors.
Two parts of main products in Zhongda Motors: Generally motor and explosion-proof motor. Generally motor includes: low voltage (H80-560mm) Y2 series motors and its derived series motor (such as ZYS compressor special motor, YZS injection special motor, Y2VP VSD motor, IP23 motor, IP23 series of biological medical chemical mechanical agitation special motor, Y2D and Y2DT series multi-speed pump fan motor etc.). High voltage (H355-710mm) has YE2HV/YKKE series high voltage high efficient series motor, YE2 / YE2-ODP series high efficient motor, low voltage large power motors etc. Explosion-proof motor mainly include: low voltage YB2 / YB3 / YBK2 / YBF2 (H80-355mm) explosion series motor, YB2 (H355-560mm) low voltage larger power series motor, explosion-proof high voltage motor (H355-630mm) is in the process of certification, which has formed the specialized production scale, the products are widely used in electric power plant, steel plant, coal mine machinery, petrochemical industry, cement machinery, compressor, water pump, fan and paper etc.
Zhongda Motors has established a long-term strategic partnership with many well-known domestic and oversea companies , actively participate in motor applied technology development and application selection.
Zhongda Motors is a member of Explosion-proof Motor branch of China Electrical Equipment Industrial Association, Compressor branch of China General Machinery Industry Association. Explosion-proof series motors have already got explosion-proof certification, Safety Certification of Approval for Mining Products, production license. Zhongda Motors has passed the ISO9001 quality system certification, the European Union CE authentication, has the right of import and export , Famous brand of Jiangsu province, approved and established the provincial engineering technology center, the provincial technical center, national postdoctoral workstation, with national laboratory - energy laboratory. To match with customers’ requirement, it depends on our qualified products and a full range of services, Zhongda products are deliver to Europe, Australia, southeast Asia, the Middle East and other countries and regions.