Voltage dips
Voltage swell
Blinding power / Power factor
Harmonic pollution
Interharmonics
Supraharmonics (2-150 kHz)
Short- and long-term outages
Slow voltage variations (under/overvoltage over long periods of time)
Flicker
Transients and overvoltage peaks
Voltage imbalance
Inrush current
Resonance
Frequency variations
Electromagnetic Compatibility (EMC)
High-frequency failures
Earthing & shielding (practical)
Inverters/drive installations (typical EMC source)
Load flow
Harmonic load flow
Dynamic Load Flow
Short-circuit current
Selectivity
Arc Flash
Impedance scan
EN50160 / IEC 61000-4-30 (measurement quality)
Grid codes / connection conditions (DSO/TSO)
Reporting & Compliance
Active Harmonic Filter
Passive Harmonic Filter
EMC and EMI Filters
SAG Compensators
Voltage regulators
Capacitor bank (low and medium voltage)
Cos Phi Compensation
Energy meters
Inverters
