Power Quality Analysis & Harmonic Audits in Pakistan.
TransfoLine delivers certified Power Quality Analysis & Harmonic Studies across Pakistan using industry-standard Fluke 1777 Class A power quality analyzers. We identify voltage sags, micro-transients, harmonic distortion (THD up to the 50th order), poor power factor, and unbalance to protect sensitive industrial machinery and eliminate utility penalties.
What is a Power Quality & Harmonic Audit?
Power quality analysis is the multi-day capture and analysis of electrical waveforms in 3-phase industrial power systems. By deploying high-speed Class A power quality loggers, our electrical engineers measure voltage variations, current spikes, power factor, and harmonic pollution generated by non-linear loads (such as variable frequency drives VFDs, induction furnaces, and UPS systems).
Harmonic Analysis (THD_V & THD_I)
Comprehensive spectrum breakdown from fundamental 50Hz up to 50th harmonic (2500Hz). Detects dominant 3rd, 5th, 7th, 11th, and 13th harmonics causing transformer overheating and neutral cable burning.
Voltage Sag, Swell & Transient Logging
Captures sub-cycle voltage sags caused by heavy motor starting or grid switching that cause automated PLC controllers, robotic arms, and CNC machinery to trip unexpectedly.
Key Parameters Logged During Power Quality Audits
IEEE 519-2022 Voltage Harmonic Distortion Limits
| Bus Voltage at PCC | Max Individual Voltage Harmonic (%) | Max Total Voltage Distortion THD_V (%) | Typical System |
|---|---|---|---|
| V ≤ 1.0 kV | 5.0 % | 8.0 % | 415V Industrial LT Main Distribution Boards |
| 1.0 kV < V ≤ 69 kV | 3.0 % | 5.0 % | 11kV & 33kV Factory Incomers / Substations |
| 69 kV < V ≤ 161 kV | 1.5 % | 2.5 % | 132kV Primary Grid Stations |
Frequently Asked Questions.
Engineering advice on power stability and harmonic mitigation.
DURATION How long does a power quality logging audit take?
Standard industrial power quality logging is conducted over a continuous 24-hour to 7-day period to record a complete operating cycle across multiple shifts, peak production hours, and non-working hours.
SOLUTION Can TransfoLine help resolve high harmonic distortion?
Yes. Based on our audit report, we design, size, and supply Active Harmonic Filters (AHF), detuned capacitor banks, and harmonic mitigation reactors to bring your system into 100% IEEE 519 compliance.
Book a Power Quality Audit.
Our power quality engineering team deploys Class A analyzers nationwide across Pakistan.
Need harmonic analysis, power factor optimization, or voltage sag investigation? Contact us directly.