Hertzinno - Model HZ-DGA-900 - Transformer Monitoring System
The Hertzinno DGA900 is an advanced online Dissolved Gas Analysis (DGA) system designed for the real-time monitoring of transformer conditions. Leveraging MEMS technology, the DGA900 surpasses traditional PAS technology by providing maintenance-free operation while monitoring nine types of gases and moisture in transformer insulation oil. It uses MEMS IR light sources, which enable precise modulation of different frequency bands, improving gas analysis sensitivity. Its dual-chamber design separates the gas analysis chamber from the acousto-optic chamber to prevent contamination and enhance system longevity. The system features a vacuum degassing and pressure leveling mechanism, maintaining pressure equilibrium with transformers and preventing downtime. With a robust automatic calibration system, Hertzinno ensures high measurement accuracy over time. The DGA900’s photoacoustic spectroscopy eliminates the need for consumables, providing a reliable and cost-effective solution for optimizing transformer performance and preventing outages.
The world’s first enhanced online DGA system using MEMS technology, derived from PAS technology and surpasses PAS technology, requires no maintenance, and supports the monitoring of 9 gases and moisture.
- High sensitivity
- 9 type gases and moisture analysis
- 0.5 hour for a measurement cycle (Typical 1 hour)
- Mineral oil and synthetic ester supported
- No carrier or calibration gases to monitor or replace
- MEMS IR light source for multiple unique gas bands
- Dual gas chambers and bipolar absorber design allow measurement of small quantities of oil
- 15 years lifespan
- Maintenance-free
- Auto-calibration
Dissolved Gas Analysis (DGA) of oil transforners is critical and necessary for condition based maintenance, analysis state of transformer, identifying faults and preventing outages of transformer.
Gas and mositure levels in transformer insulation oil can indicate the existence of faults, while the gassing trends, namely the rate of change in gas levels, can be used to determine the severity of faults.
With online DGA, the end user can now safely enhance equipment performance, prolong service life, schdule timely maintenance and prevent unplanned downtime.
Hertzinno brings high sensitivity and preformance online DGA for global market based on photoacoustic specturm technology and innovation technologies such like MEMS IR and dual chambers.
MEMS IR Light Source
Adopt MEMS IR light source, can directly modulate different frequency bands light source, avoid the interference of mechanical chopper and improve the sensitivity for analysis gases.
Dual-Chambers
Dual gas chamber design of analysing gas chamber and acousto-optic gas chamber avoids contamination of the gas chamber by high molecular gases in the oil and prolongs the system time.
Pressure balance
Vacuum degassing and pressure levelling system to support higher gas degassing rates and pressure equilibrium with the transformer, avoiding downtime of the installation.
High Sensitivity
- MEMS Tunable IR light source, it emits specific spectra for analysis of gases, supports 9 type gases in a cycle
Hertzinno DGA features automatic calibration to prevent accuracy degradation caused by aging light sources
High Reliability
- With a vacuum gas sampling and a dual-stage gas chamber design, it provides higher accuracy and reliable measurement results compared to traditional gas sampling methods
The dual-stage chambers structure effectively avoids the reliability declines due to optical window contamination
High Performance
- Hertzinno online DGA offers real-time monitoring of transformer status, with the capability for 24/7 and a minimum detection cylce of 0.5 hour
The repeatability error of measurement result within 3%
One-time Investment
- Based on photoacoustic spectroscopy,Hertzinno DGA does not need consumables such as calibration gases, carrier gases or chromatographic columns
Without chopper as well for this DGA, resulting in a maintenance-free system