Application
High-voltage dry-type reactor
FIBER OPTIC TEMPERATURE MONITORING CASE
Dry-Type Reactor Fiber Optic Temperature Monitoring
Fluorescence-based fiber optic temperature sensors provide direct winding temperature measurement for high-voltage dry-type reactors operating in strong electromagnetic environments.
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Operating Environment
High voltage and strong electromagnetic fields
Measurement Focus
Reactor winding temperature
Monitoring Method
Online fiber optic temperature monitoring
Project Overview
This project applied fluorescence-based fiber optic temperature sensing to a high-voltage dry-type reactor for direct winding temperature monitoring.
Fiber optic temperature probes were installed at selected winding locations to measure temperature during reactor operation. Optical fibers transmit the sensing signals to the external monitoring instrument for continuous multi-point temperature acquisition.
The completed configuration provides direct winding temperature data without introducing conductive electrical sensor wiring at the measurement points.
Monitoring Requirement
Dry-type reactor windings operate under high current, high voltage and strong electromagnetic fields. Internal winding temperature is an important operating parameter for thermal monitoring and equipment condition assessment.
The project required direct temperature measurement at selected winding locations while maintaining electrical isolation from the high-voltage structure.
Temperature information also needed to be continuously available through the external monitoring equipment for operating personnel.
Fiber Optic Winding Temperature Monitoring
Fluorescence-based fiber optic temperature probes were positioned at selected winding measurement points.
Each probe measures temperature at a defined location, while the optical fiber carries the sensing signal to the temperature monitoring instrument outside the high-voltage measurement area.
The monitoring configuration includes:
- Fiber optic temperature probes
- Optical fiber connections
- Multi-channel temperature acquisition
- Independent winding temperature channels
- Online temperature display and monitoring
Measurement Points & Channel Configuration
Temperature measurement points were selected according to the reactor winding structure and monitoring requirements.
Individual fiber optic channels correspond to defined winding locations, allowing different temperature points to be monitored independently.
The number of sensing points, fiber length and monitoring channels can be configured according to the reactor design and required temperature monitoring locations.
Installation & Online Monitoring
Fiber optic probes were installed at selected winding positions while maintaining the required electrical clearances and mechanical structure of the reactor.
Optical fibers were routed from the internal measurement points to the external monitoring instrument with appropriate protection along the routing path.
The monitoring instrument continuously acquires temperature data from individual channels and provides real-time temperature information for online reactor monitoring.
Project Result
The completed system provides direct multi-point winding temperature monitoring for the high-voltage dry-type reactor.
Fluorescence-based fiber optic sensors provide electrically isolated temperature measurement in the strong electromagnetic environment, while the external monitoring instrument continuously collects temperature data from the selected winding locations.
The configuration can also be applied to similar dry-type reactors, power reactors and other high-voltage equipment requiring direct internal temperature measurement.
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