HZ-OLF-100 Overhead Line Fault Indicator
HZ-OLF-100 is an overhead transmission line fault locating system designed for 6kV–500kV power lines. It helps utilities detect short-circuit faults, ground faults, poor contact faults and insulator faults, while supporting interval fault location, real-time monitoring and rapid fault type identification.
Locate overhead line faults faster and reduce field inspection workload.
Terminal sensors monitor the overhead line section, while substations, master station and platform aggregate fault data for alarm display, fault section positioning and maintenance response.
Fault Detection
Detect short-circuit faults, ground faults, poor contact faults and insulator faults on overhead transmission lines.
Interval Fault Location
Each terminal sensor covers up to 5 km of line, helping operators identify the fault section quickly.
Passive Sampling
The system is activated by fault current pulses, reducing false alarms and improving event reliability.
Self-organizing Network
Terminal sensors, substations and master station work together for wireless data aggregation and platform reporting.
Four-level architecture for overhead line fault monitoring
HZ-OLF-100 uses terminal sensors for line monitoring, substations for data gathering, a master station for aggregation and the HERTZINNO platform for centralized management.
From line terminal to monitoring platform.
Fault information is collected from terminal sensors, transmitted to substations, forwarded to the master station and finally displayed on the software platform for alarm management and maintenance decisions.
Detect line faults and early warning events
The system supports major overhead line fault detection and warning scenarios, helping operators respond to both fault events and potential line hazards.
Short-circuit Fault
Identifies short-circuit fault events and supports rapid section-level fault location for overhead lines.
Ground Fault
Detects ground fault events and helps maintenance teams reduce inspection time on long-distance lines.
Poor Contact Fault
Supports monitoring of poor contact conditions that may lead to heating, instability or power interruption.
Insulator Fault
Helps identify insulator-related fault events and improve reliability of overhead line operation.
Corona Close-range Discharge
Provides warning for close-range discharge events around overhead line components.
Floating Object Contact
Alerts operators when floating objects contact the line, excluding plastic objects according to the datasheet.
HZ-OLF-100 overhead line fault indicator specifications
HZ-OLF-100 is designed for outdoor overhead line deployment, combining terminal sensors, substations, master station and software platform for fault location and monitoring.
Where HZ-OLF-100 is used
HZ-OLF-100 is suitable for overhead line fault location, long-distance line patrol reduction and grid reliability improvement in outdoor transmission and distribution environments.
Overhead Transmission Lines
Monitor 6kV–500kV overhead lines for short-circuit, ground fault and other fault events.
Rural & Mountain Lines
Reduce manual inspection workload on long-distance rural, mountainous and difficult-to-access line sections.
Critical Grid Infrastructure
Support real-time fault indication and faster maintenance response for key overhead power routes.
Utility Maintenance Operations
Help maintenance teams locate fault intervals, determine fault types and improve repair efficiency.
HZ-OLF-100 Overhead Line Fault Indicator FAQ
Common questions about overhead line fault detection, interval fault location, terminal sensors, substations and platform integration.
What is HZ-OLF-100 used for?
What voltage levels does it support?
How far can one terminal sensor monitor?
What are the main parts of the system?
How does the system reduce false alarms?
How are the terminal sensors powered?
Is it suitable for outdoor installation?
Plan your overhead line fault location system.
Tell us your line voltage, route length, typical fault types, terrain condition, communication distance and platform integration requirements. HERTZINNO can help configure an HZ-OLF-100 overhead line fault monitoring solution.