Simplifying Phase Identification in Power Networks with Synchrophasor Technology
In the complex world of power distribution, accurate phase identification is critical. Whether installing new meters, balancing loads, or maintaining grid reliability, knowing which phase you’re working on prevents costly mistakes. Therefore reducing neutral currents, and supporting better network analytics.
🔎 Why Phase Identification Matters
Electricity distribution networks are designed around three phases — typically labeled A, B, and C. Knowing which phase is connected where is vital for:
- Safe installation and maintenance
- Preventing phase-to-phase faults
- Load balancing and reducing neutral currents
- Accurate modeling for utility network analysis
However, identifying phases in the field isn’t always straightforward. Firstly, network documentation is often outdated. In addition, tracing methods are time-consuming, labor-intensive, and error-prone. Especially when transformers alter phase angles.
âš¡ How Synchrophasors Revolutionise Phase Identification
Dewesoft’s innovative approach uses synchrophasor technology — GPS-synchronized measurements that allow comparison of phase angles at different locations within the network.
Here’s how it works:
- A reference unit is installed at a known point (like a substation).
- Field technicians use a handheld phase identification tool connected anywhere in the low-voltage network.
- Both devices measure the voltage’s phase angle simultaneously, using GPS time stamps for accuracy.
- The system compares angles and determines the phase label (A/B/C), even across vast distances.
This method eliminates guesswork and manual tracing, dramatically improving the accuracy and efficiency of fieldwork.
✅ The Bonus: Automatic Phase Shift Compensation
One of the biggest challenges in phase identification is dealing with phase shifts caused by transformers. Firstly, these shifts distort phase angles and confuse traditional measurement methods.
Dewesoft’s system solves this with a patented compensation algorithm. It:
- Automatically recognises transformer vector groups
- Adjusts calculations to account for phase shifts
- Provides correct phase identification despite the transformer’s impact
The result? Reliable phase identification without needing detailed transformer data or manual adjustments.
🔧 Applications Across the Power Sector
This technology is a game-changer for:
- Utilities and DNSPs managing vast low-voltage networks
- Smart meter installers needing accurate phase mapping
- Renewable energy projects connecting solar or batteries to the grid
- Power quality engineers addressing load imbalance and neutral current issues
📈 Why Gridphase is the Ultimate Phase Identification Tool
Metromatics proudly distributes Dewesoft’s Gridphase Handheld Phase Identification Tool in Australia and New Zealand — delivering:
- Fast and easy
- GPS synchronisation for wide-area coverage
- Automatic compensation for transformers
- Perfect for the electrician’s tool kit
💡 Final Thoughts
Finally, accurate phase identification is no longer a manual guessing game. Thanks to synchrophasor technology, tools like Gridphase empower field crews to work smarter, safer, and faster — with confidence that the phase is always correct.
Contact Metromatics to learn more or request a demonstration.