Test Capacity

With a 2000 kW/14 kV full scale test capacity, Unistone Motors has established itself as not only a regional leader in test capabilities, but also positions itself as a source for other companies in need of state-of-the-art test facilities.

Test contents:

• Insulation resistance test
• Resistance test
• High-voltage test
• Interturn test
• No-load test
• Locked-rotor test
• Vibration and noise-level test
• Temperature-rise test
• Pull-out test
• Overspeed test
• Measurement of efficiency, power-factor and loss
• Adjustment of DC motor neutral
• Measurement of regulation of a generator

Test objects:

• Low voltage three-phase induction motor
• High voltage three-phase induction motor
• Low voltage AC generator
• Switch reluctance motor
• Direct current (DC) motor

Test standards:

• GB/T1029-1993
  Test procedures for three-phase synchronous machines
• GB/T1032-1985          
  Test procedure for three-phase induction motors
• GB/T1069.1-1988             
  Measurement of airborne noise emitted by rotation electrical machinery and the noise limits
  Engineering method for the measurement of airborne noise
• GB/T1069.2-1988             
  Measurement of airborne noise emitted by rotating electrical machinery and the noise limit
  Survey method for the measurement of airborne noise
• GB/T1311-1989          
  Test procedure for direct current machines
• GB/10068.1-1988            
  Measurement evaluation and limits of the vibration severity of rotating electrical machinery
  Measurement of mechanical vibration