Power
Quality
Any power problem manifested in voltage,
current, or frequency deviations that result
in failure ormisoperation of end users loads
and equipment connected to power system.
Failure and damage
of equipment
Additional losses
Malfunctioning of
protection devices
Process interruption
or slowdown
Penalties because of
low power quality
Production
losses
Products
Parameters
Transients
Impulsive
Oscillatory
Short Duration Variations
Interruption
Sag&swell
Long Duration Variations
Undervoltage
Overvoltage
Voltage Unbalance
Waveform Distortion
Harmonics
Notches
Power Frequency
Variations
Power Quality Effects
Grid Operators
- Failure of capacitor banks
- Trip of protective devices
- Overstressing insulation equipment
- Increased system losses
- Resonance problems
- Poor supply voltage quality (EN50160)
End-Users
- Process interruption/slowdown
- Equipment damage
- Failure of computer and network systems
- Data Loss
- Noise interference in telecommunication lines
- Failure of household appliances
Application Areas
Industry
Elimination of current and voltage harmonics, avoiding reactive energy penalties and smoothing voltage variations
Utilities
Voltage regulation on lines and cables, increasing system efficiency with less reactive power and harmonics, comlying with regulations
