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Alternators

Electric Parameters

  • Rated output power: 10kw-300kw (12.5kva-375kva)
  • Rated voltage: 400v (50hz), 480v (60hz)
  • Phase/connecting method: 3 phase 4wire/Y type connection
  • Rated frequency: 50/60hz
  • Rated speed: 1500/1800rpm
  • Excitation type: self excited, Brushless
  • Insulation: Class H
  • Protection: IP21~IP23
  • Power factor: 0.8 lagging
  • Voltage regulation: AVR automatic control
  • Steady voltage regulation≤±1.5%
  • Transient voltage regulations≤+20%, -15% Un (60%ln,cosф≤0.4 lag)
  • Adjustable voltage range >10%
  • Sine waveform distortion rate at no-load, ≤5%, (line voltage)
  • This series alternator can be operated continuous at rated load under following conditions:
    Altitude above sea level: ≤1000 meters
    Ambient air temperature: ≤45℃ Relative air humidity: ≤ 90%

Frame

The frame is made by steel plate. All industrial standard generator is IP21 (NEMA1), also IP 23 is an option. But rated power will decrease 5%

Shaft and Key

All generator rotors are dynamically balanced to be better than BS6861: Part 1 Grade2.5 for minimum vibration in operation. Two bearing generators are balanced with a half key.

Terminals and Terminal Box

Standard generators are 3-phase reconnectable with 12 ends brought out to the terminal box, which is mounted on a cover at the non-driver end of the generator. A sheet steel terminal box contains the AVR and provides ample space for the customer wiring and gland arrangements. It has removeble panels for easy access.

Engine Adaptor and Coupling

All generators have two kinds construction. the single-bearing generators engine adaptor to SAE0, 1, 2, 3, 4 and 5, the coupling discs to SAE7, 5, 8, 10, 11, 5, 14 and 18 are available. The Double-bearing generators adaptor to SAE0, 1, 2, 3, 4 and 5 are available.

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