Transformer DGA & Grid Monitoring Products

Monitor power transformer health with the HZ-DGA-900 high-precision online dissolved gas analysis system. Features PAS technology, 9-gas detection, and maintenance-free operation.

Smart Grid Monitoring

From the tower to the trench. Achieve 100% visibility of your assets with our smart monitoring solutions.

Smart Grid & Transformer Monitoring

Online DGA for Transformer

The Hertzinno DGA is a new-generation online DGA featuring proprietary technological innovations.By integrating enhanced photoacoustic spectroscopy (PAS) with photonic spectroscopy, this system enables continuous online monitoring of 9 fault gases and trace moisture in transformer oil.The system provides the earliest possible warning by detecting faults during their formation phase, before electrical protection systems respond.

Smart Grid Fault Indicators (OLF)

The "Watchdog" for distribution networks. Detect short circuits and earth faults instantly with IoT connectivity.
From 5kV to 500kV, Hertzinno brings smart grid solution coverd distribution lines and transmission lines.

Transformer Acoustic Fingerprint Monitoring

HERTZINNO acoustic fingerprint systems learn the normal voiceprint of transformers and detect abnormal humming, vibration, cooling fan noise, oil pump degradation and mechanical changes. Combined with online DGA, voiceprint monitoring gives operators a broader view of transformer health.

DTS & DAS Fiber Sensing for Smart Grid Monitoring,HERTZINNO,

Fiber Sensing for Smart Grid Assets

HERTZINNO DTS and DAS systems turn fiber optic cables into distributed sensing networks for smart grid infrastructure. DTS provides continuous temperature visibility along power cables, cable tunnels, trenches and transformer-related routes, while DAS detects vibration, disturbance and third-party interference along transmission corridors, underground cables and critical grid perimeters.

Strength of HERTZINNO DGA

MEMS IR

The electronically modulated MEMS infrared light source replaces mechanical choppers, eliminating vibration noise and enhancing detection selectivity and stability.

Gas Chambers

The two-stage absorption chamber combining gold-coated tubular absorption cavities with resonance enhancement technology enables precise capture of trace gases.

Vacuum Degassing

The system employs vacuum negative pressure degassing to perform temperature-controlled degassing of oil, thereby accommodating measurements of mineral oil and other types of oil.

The MEMS IR Advantage in Transformer Monitoring

Hertzinno’s advanced MEMS technology eliminates the mechanical vulnerabilities of legacy DGA systems. By replacing rotating choppers with solid-state electrical modulation, we provide unprecedented stability and a maintenance-free 10-year operational life.

Eliminate Vibration No moving parts means zero mechanical noise interference.

Zero Aging Drift Direct electrical modulation prevents accuracy degradation over time.

Maintenance Free 10-year lifespan with no mechanical component replacements needed.

Interactive Modulation Logic Visualizer

Frequency:

Our DGA Product Matrix

Find the perfect packaging solutions tailored to your industry niche.

DGA900

Full-Spectrum Diagnostic System

H₂, CO, CO₂, CH₄, C₂H₂, C₂H₄, C₂H₆, O₂, N₂, and trace moisture.

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DGA500

Standard Diagnostic Monitor

H₂, CO, CH₄, C₂H₂, C₂H₄ and moisture online monitoring.

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DGA300

Basic Early Warning Monitor

H₂, CH₄, C₂H₂ and Moisture Analysis for basic monitoring.

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More Advantage Technologies

Comprehensive Gas Analysis

Monitors 9 specific gases: H₂, CO, CO₂, CH₄, C₂H₂, C₂H₄, C₂H₆, O₂, N₂ and moisture.

Rapid Diagnostics

Completes a full measurement cycle within 1 hour for time-critical monitoring.

Maintenance-Free Reliability

Self-calibration and a standard 5-year warranty ensure low total cost of ownership.

Environmental Resilience

Operates reliably in extreme temperatures ranging from -40°C to 70°C.

Transformer & Smart Grid Monitoring FAQ

Common questions about online DGA, transformer voiceprint monitoring, DTS and DAS fiber sensing for smart grid assets.

What is the best way to monitor transformer health online?

Online transformer monitoring usually requires more than one signal. Online DGA tracks dissolved fault gases and moisture inside transformer oil, while acoustic voiceprint monitoring detects abnormal humming, vibration, cooling fan noise and oil pump changes. Together, they help operators identify internal electrical faults and external mechanical issues earlier.

Why is online DGA important for transformers?

Online DGA helps detect early transformer faults by monitoring dissolved gases generated by overheating, arcing, partial discharge and insulation deterioration. Compared with periodic oil sampling, online DGA gives operators a continuous view of transformer condition and helps reduce delayed fault diagnosis.

What does transformer acoustic voiceprint monitoring detect?

Transformer acoustic voiceprint monitoring learns the normal sound pattern of a transformer and its auxiliary equipment. It can help detect abnormal humming, core looseness, vibration, cooling fan issues, oil pump degradation, mechanical noise and possible sound changes related to partial discharge.

How do DTS systems support smart grid monitoring?

DTS turns fiber optic cable into a distributed temperature sensor. In smart grid applications, DTS can monitor power cable temperature, cable tunnels, trenches, transformer-related routes and fire-risk areas. It helps operators identify thermal hotspots, overload risks and abnormal temperature changes along the full cable route.

How does DAS help protect power cables and grid routes?

DAS uses fiber optic sensing to detect vibration and disturbance along long-distance routes. It can help identify digging, third-party construction, vehicle activity, external interference and abnormal vibration around underground cables, utility tunnels, transmission corridors and substation perimeters.

Should DGA, acoustic voiceprint, DTS and DAS be used together?

Yes, when the site requires broader asset visibility. DGA monitors internal transformer health, acoustic voiceprint monitoring listens for transformer and auxiliary equipment changes, DTS tracks temperature along cables and tunnels, and DAS detects vibration or intrusion along grid routes. Together, they create a more complete smart grid monitoring layer.

Can HERTZINNO systems connect to SCADA or other monitoring platforms?

Yes. HERTZINNO monitoring devices can provide alarms, trend data and diagnostic outputs to SCADA, asset management systems or third-party monitoring platforms depending on the project architecture, communication protocol and integration requirements.

Which HERTZINNO products are recommended for transformer and smart grid monitoring?

Recommended products include HZ-DGA-900 or HZ-DGA-500 for online transformer DGA, HZ-FA-110 for transformer acoustic voiceprint monitoring, HZ-DTS for distributed cable temperature monitoring and HZ-iDAS for route-level vibration and disturbance detection.

PRODUCTS: Acoustic Imaging Cameras; Acoustic Fingerprint Solutions; Transmission Line Monitoring; Optic Fiber Sensing

Contact Us: Greenland Mtown, No. 515, Huanke Road, Pudong District, Shanghai, China; info@hertzinno.com

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