Transformer Monitoring
Comprehensive real-time monitoring for power, oil-immersed, and dry-type transformers — built around fluorescent fiber optic temperature sensing as our core technology, alongside partial discharge, DGA, OLTC, and bushing monitoring. RS485 ready for SCADA integration.
0.5–1°C
Fluorescent Fiber Optic Temperature Accuracy
-40–260°C
Operating Temperature Range
1–64
Channels per Transmitter
RS485
SCADA / Modbus Communication
Fluorescent Fiber Optic Temperature Monitoring
Core technology for accurate, interference-free transformer temperature sensing
Our Monitoring Solutions
Explore our monitoring solutions, featuring fluorescent fiber optic temperature sensing as our core technology for accurate, interference-free transformer monitoring.
Fluorescent Fiber Optic Temperature Monitoring
Our primary technology for transformer hot-spot temperature measurement. Fluorescent fiber optic sensors are installed directly on the winding, giving a true reading of the hottest point inside the transformer rather than an estimated value calculated from top-oil temperature.
- Point-type sensing with direct contact on the winding hot-spot
- Completely immune to electromagnetic interference, even near live conductors
- Fully insulated probe suitable for installation inside energized high-voltage windings
- Stable long-term performance with minimal signal drift over decades of service
- Flexible channel configuration to match transformers of different sizes and complexity
Technical Parameters
| Sensing Type | Point-type temperature sensing |
| Accuracy | 0.5–1°C |
| Temperature Range | -40°C to 260°C |
| Fiber Length | 0–20 m |
| Response Time | < 1 second |
| Probe Diameter | 2–3 mm (customizable) |
| Insulation | Fully insulated |
| Withstand Voltage | > 100 kV |
| Service Life | > 25 years |
| Channels per Transmitter | 1–64 channels |
| Communication Interface | RS485 |
| Customization | Other parameters available on request |
Transformer Temperature Monitoring
Track winding and top-oil temperature around the clock, giving operators early warning before thermal stress shortens transformer life.
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Partial Discharge Monitoring
Continuously scan for partial discharge signals to catch insulation weaknesses long before they develop into costly breakdowns.
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Transformer DGA Monitoring
Online dissolved gas analysis reads the chemical fingerprint of transformer oil, revealing internal faults while they are still developing.
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OLTC Monitoring
Track tap changer switching cycles, contact wear, and drive mechanism health to keep voltage regulation running smoothly.
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Bushing Monitoring
Monitor bushing capacitance and power factor trends over time to catch aging insulation before it leads to failure.
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Switchgear Monitoring
Available on request
Fluorescent fiber optic temperature monitoring for switchgear, including demodulator, sensor probe, display module, fluorescent fiber, and monitoring software.
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Gas Insulated Switchgear (GIS) Monitoring
Available on request
Monitoring solutions for gas insulated switchgear, tailored to specific site and equipment requirements.
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Cable Joint Monitoring
Available on request
Temperature monitoring capability for cable joints, offered based on individual project scope and technical specifications.
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Motor Temperature Monitoring
Available on request
Winding and bearing temperature monitoring for motors, available upon inquiry based on project requirements.
Inquire NowTransformer Monitoring OEM Partner — Factory Direct
INNOFZ integrates R&D, manufacturing, and sales in one facility — covering fluorescent fiber optic sensors, DGA online monitoring, partial discharge detection, and bushing monitoring devices. We support OEM partners with factory-direct hardware, customized configurations, and dedicated engineering collaboration.
In-House R&D & Manufacturing
Sensor design, instrument assembly, and quality testing are all performed at our own facility, giving OEM partners full traceability and supply chain control.
Customized Configurations
Custom probe form factors, channel counts, communication protocols, and enclosure designs — supported with direct engineering collaboration.
Global Market Experience
Our products are supplied to customers across Europe, North America, Southeast Asia, the Middle East, and other international markets.
Related Products
Looking for the actual hardware? Browse our specific monitoring products and devices.
Fiber Optic Temperature Sensor
The fluorescent fiber optic probe itself — installed directly on transformer windings to capture hot-spot temperature at the source.
Transformer Temperature Monitoring System
A panel-mounted controller integrating multiple temperature inputs, digital display, alarm relays, and cooling fan control.
DGA Online Monitoring System
An on-tank hardware device that extracts and analyzes dissolved gases from transformer oil, outputting real-time gas concentration data.
Partial Discharge Monitoring System
A sensor and acquisition hardware unit that captures partial discharge signals for signal processing and fault localization.
Bushing Monitoring System
A dedicated hardware unit connected to bushing taps, continuously measuring capacitance and power factor signals.
Transformer OLTC Monitoring System
A hardware monitoring unit mounted on the tap changer mechanism, recording switching operations and drive status.
Monitoring Applications
See how our solutions are applied across different transformer types and monitoring scenarios.
Power Transformer Monitoring
Real-time monitoring for large power transformers in generation and transmission systems.
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Oil-Immersed Transformer Monitoring
Combined temperature, DGA, and moisture monitoring for oil-filled transformer units.
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Dry Type Transformer Temperature Monitoring
Multi-point temperature monitoring to prevent overheating in dry-type transformers.
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Transformer Winding Hot Spot Monitoring
Accurate hot-spot temperature monitoring to optimize load management and extend lifespan.
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Transformer Insulation Monitoring
Continuous insulation condition monitoring to evaluate aging and prevent breakdown.
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Substation Transformer Monitoring
Integrated monitoring for substation transformers to improve grid reliability.
Learn More →Quality & Certifications
Every INNOFZ monitoring product is manufactured under a certified quality management system. Full documentation is provided with every order.
ISO 9001
Quality management system covering design, manufacturing, testing, and delivery of all monitoring products.
ISO 27001
Information security management system protecting data integrity across our monitoring platforms.
ISO 14001
Environmental management system committed to responsible manufacturing with minimal environmental impact.
ISO 45001
Occupational health and safety management system protecting our workforce and project teams.
RoHS Compliant
Restriction of Hazardous Substances compliance — products free of restricted materials for global deployment.
CE-EMC
Electromagnetic compatibility certification ensuring reliable operation without interference in the field.
CE-LVD
Low Voltage Directive certification confirming electrical safety compliance for European deployment.
Need Other Certifications?
Additional certifications can be arranged based on your project or regional requirements. Contact us to discuss.
Which Solution Do You Need?
Match your concern to the right monitoring solution below.
| Your Concern | Recommended Solution |
|---|---|
| Need accurate hot-spot temperature without electrical interference | Fluorescent Fiber Optic Temperature Monitoring |
| Transformer overheating or general temperature concerns | Temperature Monitoring |
| Concerned about insulation aging | Partial Discharge Monitoring |
| Suspected internal faults in oil-immersed units | DGA Monitoring |
| Tap changer wear or switching issues | OLTC Monitoring |
| Bushing leakage or capacitance concerns | Bushing Monitoring |
| Need monitoring beyond transformers | Contact Us to Discuss Your Requirements |
Why Choose INNOFZ
Engineering Expertise
Solutions designed by our in-house engineering team, specialized in transformer condition monitoring technology.
In-House Manufacturing
R&D, production, and quality control are fully integrated under one roof for consistent product quality.
Customized Solutions
Monitoring configurations tailored to your specific equipment, environment, and operational requirements.
Global Applications
Our monitoring systems are applied across power grids, industrial sites, and infrastructure projects internationally.
Industries We Serve
Our monitoring solutions support critical infrastructure across multiple sectors.
Power Grid & Utilities
Real-time data helps operators detect early-stage faults and extend equipment lifespan across grid networks.
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Power Generation
Helping generation plants maintain reliable output and avoid costly unplanned downtime.
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Renewable Energy
Supporting proactive maintenance for step-up transformers in remote wind and solar installations.
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Substations
Reducing the risk of cascading failures and improving overall substation operational efficiency.
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Oil & Gas
Fiber optic sensors suited for hazardous environments ensure continuous equipment health visibility.
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Rail Transit
Minimizing unplanned service interruptions through real-time equipment health tracking.
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Frequently Asked Questions
Common questions about our transformer monitoring solutions.
Why is fluorescent fiber optic sensing your core temperature monitoring technology?
Fluorescent fiber optic sensors can be installed directly on energized windings without electrical interference, giving a more accurate hot-spot temperature reading than conventional electrical sensors in high-voltage environments.
What is included in a typical fiber optic temperature monitoring system?
A complete system includes the demodulator (signal processing unit), fluorescent fiber optic probes, a display module, and monitoring software for data visualization and alarms.
What electrical equipment can be monitored?
Our core product line focuses on transformer monitoring. We also offer switchgear, GIS, cable joint, and motor temperature monitoring capabilities on a project basis — please contact us to discuss your specific equipment.
What is the typical lead time for a monitoring system order?
Lead time depends on the specific configuration, channel count, and customization requirements. Please contact our team with your project details for an accurate production schedule.
Do you provide customized monitoring solutions?
Yes. We design monitoring configurations based on your specific equipment specifications, site conditions, and operational requirements.
What certifications do your products hold?
Our products are backed by [CERTIFICATION] quality management certification, along with detailed product specifications and test reports available upon request. View details on our Certificates page.
Do your solutions integrate with existing SCADA systems?
Yes, our monitoring systems support standard industrial communication protocols, including RS485, and can be integrated with SCADA and other centralized monitoring platforms.
Do you provide installation and technical support after delivery?
Yes, our engineering team provides remote technical guidance during installation and ongoing support for troubleshooting and maintenance questions.
Can I combine multiple monitoring solutions on one transformer?
Yes. Many clients combine temperature, DGA, and partial discharge monitoring on the same transformer, with each solution operating independently to address a specific health parameter.
Do you offer training for our maintenance team?
Yes, we provide technical documentation and guidance to help your maintenance team understand system operation, data interpretation, and basic troubleshooting.
Need Expert Transformer Monitoring Solutions?
Our engineering team is ready to discuss your technical requirements.
