Real-Time Overhead Transmission Line Ampacity Monitoring Device

The Dynamic Line Rating (DLR) Sensor is an intelligent monitoring unit mounted on overhead power lines. It collects real-time conductor temperature, current, sag and microclimate data, and calculates safe real-time ampacity based on IEEE 738 thermal balance model. Unlike static conservative line ratings, DLR taps unused thermal margin, boosting transmission capacity by 10%–30% without rebuilding infrastructure. It cuts renewable energy curtailment, triggers overheating/sag safety alarms, and supports up to 72-hour ampacity forecasting for grid dispatch optimization.

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Product Introduction

If you're in need of real-time overhead transmission line ampacity monitoring device to help with your business, please be free to buy with our factory. As one of the leading such manufacturers in China, we will offer you low price and unmatched services.

Boost transmission capacity with zero infrastructure renovation Typically lift line ampacity by 10%–30% under normal weather; high-wind areas see even higher gains. No new tower/line construction, no power cut required for installation, far lower investment than grid expansion. It also sharply reduces wind and solar power curtailment, realizing natural synergy between renewable generation and transmission capacity.

All-round online safety monitoring & early warning Real-time tracking of conductor temperature and sag deviation triggers alarms before clearance violations or overheating faults occur, transforming grid operation from passive emergency repair to proactive predictive maintenance.

Self-powered, industrial durable design Adopts CT induction energy harvesting without built-in batteries; IP66 dustproof & waterproof enclosure, lightning protection Class III and wide -40℃~+70℃ operating temperature adapt to all outdoor harsh climates.

Seamless coordination with intelligent line inspection equipment Matched with overhead line visual monitoring terminals, forming an integrated solution combining safety hazard patrol and transmission efficiency improvement, serving unified power grid operation and maintenance scenarios.

Item	Range & Accuracy
Wind deflection angle / tilt angle	±60°; Accuracy: 0.1°, Error: ±0.3°
Longitudinal / lateral inclination	−10° ~ +10°; Accuracy: ±0.1°
Conductor temperature	−55℃ ~ +150℃
Conductor current	0–600 A
Current accuracy	5% or ±5 A
Rated voltage	35 kV – 1000 kV
Applicable conductor diameter	≤ 40 mm
Battery capacity	3 Ah
Power supply	CT energy harvesting / solar harvesting
Operating temperature	−40℃ ~ +85℃
Communication rate	Uplink: 50 Mbps; Downlink: 150 Mbps
Uplink standards	4G, EDGE, GSM/GPRS
Power protocol	Transmission I1 Interface Protocol
Frequency band	2.4 GHz – 2.5 GHz
Communication distance	≥ 100 m
Protocol	IoT Micro-power Wireless Network Protocol for Power Transmission and Distribution Equipment

product-1255-605

Module	Function
ARM Microcontroller	Main control chip
9-Axis Attitude Sensor	Wind deflection measurement / Sag measurement
485 Isolated Temperature & Humidity Sensor	Temperature and humidity measurement
Dual-channel PT100 Sensor	Temperature measurement
Light Intensity Sensor	Light intensity measurement
Current Monitoring Module	Conductor current measurement
CT Energy Harvesting & Power Module	Inductive energy harvesting
Communication Module	4G communication
2.4 GHz RF Module	Wireless communication
Security Encryption Module	Encryption
GPS Module	GPS positioning
Enclosure (IP65-rated)	--