Alternator MEGATON MWL 280 Series

Common data Altitude: ≤1000m The highest ambient atmosphere temperature: ≤40 Rated frequency:50 Hz(60 Hz) Rated voltage:400 V (480 V) Rated power factor: COS = 0.8 (lag) The ambient temperature of marine generators is 45, air relative humidity is 95% and still with dewing, tilting, rocking and oil mist as well as the salt spraying when the ship is navigating. Electrical performance: 1. voltage setting range:±5% UN 2. steady-state voltage regulating rate: ±5% 3. transient voltage regulating rate:85%-120% UN and recover time ≤ 0.5s 4. Line voltage waveform sine distortion factor: ≤3% 5. short circuit sustained current 300% I N ,2 seconds 6. Large scope of application for non-liner load 7. strong capability of start motor 8. The generator can operate in parallel connection Advantages: MW series A.C Brushless Synchronous Generator adopts special winding with low sine distortion rate of line voltage waveform and high efficiency, can be used as sine wave power supply in special occasions. The brushless devices and AVR with high quality have over-excitation and over-voltage protection function and excellent voltage regulation ratio additionally it also possess strong anti-radio interference trait. Structural Features 1. MW series A.C Brushless Synchronous Generator is of steel plate structure. The stator and the rotor are made of highly magnetic conductive cold-rolled silicon steel plate via punching it into whole circles, pack compression and welding, besides the whole salient rotors are equipped with damp windings and the insulation grade is designed to H so all of the windings are used H grade insulating materials. The mainframe magnetic field winding adopts thermal solid epoxy glue to stuff, so that the generator has highly electric and mechanical intensity with perfect cooling effect. All of the rotors have damp winding and the ones of generator have passed dynamic balance test. Double bearing generators are equipped with a C-plate key corrected dynamic balance; Main stator and exciter windings are vacuum varnished. 2. The basic protection grade for land-use is IP21. IP22 is available, too. And the shell protection grade is IP23. 3. MW Series can provide single or double bearing generator. The single bearing construction is standard SAE transition sleeves and disc couplings with many optional specifications, which can meet various installation requirements of prime movers. The connection between single bearing and prime mover is flexible to make the installing more easily. 4. The outlet cabinet of MW series generator is made of thin steel sheet with voltage regulator board and terminal device in disassemble mode. As a result, the outlet cabinet is easy to install and operate. The mainframe stator have 12 or 24 leading wires which should be reconnected according to the wiring mode to obtain the voltage required by different areas.