Monitoring overhead lines for sag, and dynamic line rating (DLR)
Reduce operational and maintenance costs with Synaptec’s unique OHL sensors.
MV-HV power operators often run into maintenance issues with overhead power lines often located in hard to reach places. Synaptec can reduce operational costs with our unique, passive overhead line sensors.
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Slava Tavoletti
Power Grids – Europe
Nitin Mahajan
Power Grids – India, GCC & SE Asia
Saul Matthews
Power Grids – Rest of World
Challenges in overhead line monitoring
Overhead power lines are required to reach the most remote or inaccessible locations, often traversing very different weather systems. This presents both operational and maintenance challenges for operators.
Operational challenges
From an operational perspective, the challenge is Dynamic Line Rating (DLR), and to know the line ampacity, or its safe thermal limits at critical points along the route in real time. This is influenced heavily by variable weather conditions, principally wind velocity and solar radiation, and by the circuit load current.
Maintenance challenges
From a maintenance perspective, the challenge is the cost and low frequency of manual inspection visits to identify potential failures, such as storm damage, ice accretion, or hotspots from conductor fatigue.
Our Solution
Our passive sensors are ideal for automating both monitoring tasks in one system (Synchromerger™), providing earlier warning to failures in the most remote and inaccessible places.
Synaptec’s unique, passive sensors are retrofittable to any number of individual conductors and towers to give live and detailed visibility of sag, vibration, and temperature. By correlating mechanical measurements from our line-mounted sensors with electrical current monitoring, we provide true DLR with a more detailed, instantaneous and localised view of ampacity than weather forecasts for a general area.
Without any need for cellular network access, power supplies, batteries, maintenance, or recalibration, our passive sensors can be deployed safely and rapidly anywhere. We provide real-time, synchronous, and permanent monitoring of temperature, vibration, strain, current, and voltage in the same system. This provides early warning of failures to enable more efficient maintenance, and location-specific validation of ampacity estimates derived from weather data.
Why the Synaptec solution is different
Requires no power supplies, telecoms equipment or 4G service
No ongoing maintenance (e.g. batteries)
Sensor lifespan of 25+ years
Sensors require no periodic calibration
Integrates with SCADA and third party data for RTTR/DLR forecasting
Easily retrofits to any MV or HV line
Sensor operational temperature range -40°C to +80°C
Use standard single mode fibre
Live correlation of current, voltage, temperature, vibration and strain in one scalable condition monitoring system
All measurements are time synced
Download our overhead line monitoring application note
Applications
Mixed circuit protection
OHL sag, ampacity and Dynamic Line Rating (DLR)
Wide area multi-ended differential protection
Digital substations
Cable condition monitoring
Wide area monitoring
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Sectors we support
Power grids
Renewables
