Please enable JavaScript.

Coggle requires JavaScript to display documents.

Introduction PQ (G1: Type of PQ disturbances (Waveform distortion (DC…

- - - - Interruption (<0.1p.u)
      - Sag (0.1-0.9p.u)
      - Swell (1.1-1.4 p.u)
    - - Interruption (<0.1p.u)
      - Sag (0.1-0.9p.u)
      - Swell (1.1-1.2 p.u)
    - - Interruption (<0.1p.u)
      - Sag (0.1-0.9p.u)
      - Swell (1.1-1.8 p.u)
  - - - medium frequency (5-500kHz, 20 micro-s, 0.8p.u)
      - high frequency (0.5-5MHz, 5 micro-s, 0-4p.u)
      - low frequency (<5kHz, 0.3-50ms, 0-4 p.u)
    - - microsecond (1micro-s rise, 50ns-1ms)
      - millisecond (0.1ms rise, >1ms)
      - nanosecond (5ns rise, <50ns)
- - - - reduce equipment failure
      - save ion maintenance cost
    - - Per-mature major equipment replacement
- - - - IEEE, ANSI, etc
        
        IEEE
        
        Grounding
        
        harmonics
        
        surge protection
        
        ANSI
        
        Powering
        
        disturbances
        
        component heating
    - - IEC, SIRIM, etc
        
        IEC
        
        Environment
        
        limits
        
        testing and measurement
    - - EPRI, UL, NEMA, etc