consulting
Power Integrity Inspection | Australia
Power-quality survey, harmonic analysis, earth-loop integrity and transient capture for critical sites.
A Power Integrity Inspection is a structured power-quality assessment of your incoming supply, distribution boards, and critical-load points. We use IEC 61000-4-30 Class A meters to capture voltage sag/swell events, harmonic distortion, transient surges, and earthing anomalies over a typical 7-day logging window.
The inspection is the first step in resolving recurrent UPS alarms, equipment lockups, transformer hum, and intermittent IT failures that are often misdiagnosed as IT or HVAC issues. Most "mystery" reliability problems trace back to identifiable power-quality root causes.
Reports include an executive summary, IEC 61000 compliance assessment, and prioritised remediation recommendations: surge protection upgrades, harmonic filtering, earthing rework, supply re-balancing, or UPS topology change.
Scope
Our service includes
9 discrete deliverables across the power integrity inspection engagement.
- 017-day power-quality logging at incoming supply
- 02Harmonic spectrum analysis (THD, individual harmonics)
- 03Voltage sag/swell event capture
- 04Transient and impulse capture
- 05Earth-loop impedance testing
- 06Phase imbalance measurement
- 07PE-N voltage and bonding integrity check
- 08IEC 61000 compliance assessment
- 09Remediation roadmap with prioritisation
Equipment
Types we service
- Data centre incoming supplies
- Hospital MSBs
- Industrial facilities with VFD loads
- Comms exchanges and telco huts
- Mining sites with diesel rotation
- Research / lab sites with sensitive instruments
Frequently asked questions
3 questions answered.
Q01
When should I run a power integrity inspection?
Trigger events include: unexplained UPS alarms or transfers, recurring equipment lockups not attributable to software/hardware faults, transformer hum changes, after major load addition (new VFDs, EV chargers), or ahead of a UPS replacement. We also recommend a baseline survey for any new-build mission-critical site.
Q02
What is a typical logging window?
Seven days minimum to capture a full weekly load cycle including weekend low-load patterns and Monday morning startup transients. For sites with weekly process variation (manufacturing, agribusiness), 14 days. Anomaly investigations may extend to 30 days.
Q03
Will the inspection disturb my operation?
No, the meter is current-clamp connected at the MSB and is fully passive. There is no break in supply and no load impact. The only access requirement is into the switchroom for installation and removal of the meter.