Hydrocal Dissolved Gas Analysis Online Monitor
A Dissolved Gas Analysis (DGA) monitor detects fault gases in transformer oil—early signs of insulation or electrical problems—giving utilities a clear advantage in avoiding costly outages.
The Hydrocal DGA line from ZTZ Services delivers modular, online transformer monitoring. Model options range from basic units to advanced multi-gas systems and a highly accurate portable model. As Hydrocal’s exclusive North American distributor, ZTZ Services provides complete installation and local support.
The Hydrocal DGA system measures up to nine gases without requiring carrier gases, ensuring accurate, low-maintenance performance.
Cost-effective multi-gas-in-oil analysis.
Lower operational complexity and consumable cost.
Hydrocal DGA monitors do not require carrier gases, removing ongoing supply expenses or safety concerns associated with gas cylinders, whereas many competitor DGA systems implicitly depend on gas handling.
Modular flexibility and upgrade path.
Hydrocal’s modular architecture means utilities can start with more basic (fewer-gas) models and add extension packages later; this gives more flexibility versus monolithic solutions.
Responsive U.S.-based field support.
ZTZ provides repair, training, and diagnostics for our Hydrocal DGA monitor units. Our localized, experienced engineers handle all facets of system operation and ensure uptime.
Confident accuracy. Proven reliability.
The Hydrocal DGA is a vital part of the ZTZ Services transformer monitoring suite. The system works hand in hand with ZTZ Services active bushing monitoring to deliver a complete picture of transformer health. By linking gas trends with live bushing data, the system confirms real issues and filters out false alarms. The result is fewer interruptions, smarter maintenance, and maximum confidence in transformer reliability.
The leader in dissolved gas analysis.
- Reputation for quality and durability without requiring maintenance.
- Compact design and small footprint.
- Simple installation (one-valve hookup, no transformer shutdown).
- Integration with existing ZTZ Services bushing monitoring systems.
- Monitors up to nine gas species + oil moisture.
- Turnkey ZTZ Services delivery (system + installation + support).
Ready to protect your infrastructure?
Active transformer monitoring transforms data depth from one sample a year to eight samples a day.
- Make informed maintenance decisions and reduce site visits.
- Prolong transformer fleet life.
- Prevent catastrophic transformer failure.
Let’s discuss transformer monitoring solutions tailored to your specific needs and infrastructure. Contact us now and talk to an American engineer at our company.