Calisto online DGA monitors for power transformers and other oil-filled electrical assets
Calisto
Hydrogen + Moisture Detection Monitor
Calisto is a simple and reliable system for detecting transformer incipient faults at their earliest stage. It provides unequaled stability at low concentration levels and is field-installable in less than 2 hours. The monitor offers additional value through on-line monitoring of dissolved water and can be easily networked for monitoring entire substations. Used in conjunction with other Calisto Condition Monitoring products, such as our Myrkos Portable Fault Gas Analyzer,Calisto becomes a key element in managing critical transformers.
- Precise and accurate hydrogen and moisture readings
- Built-in oil circulation and flow monitoring
- Continuous enclosure and oil conditioning
- Communication protocols: DNP3, Modbus, IEC 61850 (optional)
- Vacuum tolerant
- Substation hardened communication electronics
- Built-in moisture and solubility coefficients for all common insulating fluids
- Monitor large fleets of transformers cost efficiently
- Detect and monitor incipient faults using interference-free hydrogen readings
- Correlate moisture behavior with load while monitoring long-term trends
- Compatible with dry-out and degassing operations
- Very low maintenance and worry-free dependability
Calisto 2
Hydrogen, Moisture + Carbon Monoxide Detection Monitor
Combine early fault detection and monitoring of cellulose degradation. Calisto 2 is innovative for its value-added transformer fault detection and monitoring. Still featuring unequaled performance and stability for the measurement of moisture and dissolved hydrogen—the key gas for detecting incipient faults at their earliest stage—Calisto 2 also offers independent measurement of carbon monoxide, a gas often generated in large quantities when transformer cellulose overheats. Calisto 2 is supplied standard with DNP3.0 and MODBUS communication protocols, thus allowing easy deployment within existing communications and SCADA networks.
- Additional measurement of dissolved carbon monoxide
- Built-in oil circulation and flow monitoring
- Continuous enclosure and oil conditioning
- Communication protocols: DNP3, Modbus, IEC 61850 (optional)
- Vacuum tolerant
- Substation hardened communication electronics
- Built-in moisture and solubility coefficients for all common insulating fluids
- Be alerted to accelerated aging of solid insulation
- Make informed maintenance decisions
- Easily install and integrate monitor within existing operations
- Be alerted to any monitor malfunction and low oil circulation
- Easily replaced with Calisto 5 or Calisto 9 if required
Calisto 5
5 Fault Gases + Moisture Diagnostic Monitor
Avoid what could become a costly transformer failure by choosing our new generation of multi-gas on-line monitors. The Calisto 5 is a powerful tool for transformer condition assessment. This generation of Calistos uses gas chromatography with proven reliable results. This is a physical method of separation in which the components to be separated are distributed between two phases, one of which is stationary (stationary phase) while the other moves in a definite direction (mobile phase).
- Additional measurement of Duval Triangle gases
- Acetylene measurement from 0.2 ppm
- Automated self-calibration using certified primary grade gas\
- Intuitive front-panel display interface
- Built-in oil circulation and flow monitoring
- Continuous enclosure and oil conditioning
- Communication protocols: DNP3, Modbus, IEC 61850 (optional)
- Vacuum tolerant
- Substation hardened communication electronics
- Built-in moisture and solubility coefficients for all common insulating fluids
- Identify arcing at the earliest onset
- Add continuous Duval Triangle diagnosis to incipient fault detection
- Ensure concurrence with laboratory data (short-term and long-term)
- View data and monitor status on-site without tools or computers
- Low ownership cost
Calisto 9
Complete DGA + Moisture Diagnostic Monitor
The Calisto 9 online DGA monitor provides the data you need for early detection and diagnosis of impending failures, cost-efficient condition-based maintenance and optimal loading decisions.
Accuracy By Design
Features best-in-market accuracy bench-marked by clients, laboratories, and industry working groups — ensuring the reliability of the DGA results they provide.
Early Detection
Market-leading lower detection limits and a very broad measurement range ensure that you are getting all the information needed to detect and diagnose faults as early as possible.
Easy Deployment
Supplied with DNP3, Modbus and optional IEC 61850 communication protocols for easy deployment within existing communications and SCADA networks.
Fits Your Monitoring Program
Designed to fit your monitoring program, it can operate as a standalone DGA monitor or as part of the Doble Calisto Condition Monitoring Platform.
- Gas chromatography (GC) technology for precise and accurate readings
- Built-in moisture and solubility coefficients for all common insulating fluids
- Proprietary Doble | Morgan Schaffer cell and chromatographic method
- Enhanced self-diagnostics
- Vacuum tolerant
- Enclosure temperature and oil temperature conditioning
- Factory-installed carrier gas manifold for trouble free start-up and convenience
- Built-in oil circulation and flow monitoring
- Communication protocols: Modbus, DNP3, optional IEC 61850
- Substation hardened communication electronics
- Early detection of impending failures
- Cost-efficient condition-based maintenance
- Easy installation and integration within existing operations
- Easily upgrade between detection and diagnostic models for optimal fleet deployment strategies
- Virtually maintenance-free: annual visual inspection
- More than 15 years of expected useful operating life
- 30 months standard warranty on all Calisto products
- Fully functional even in the harshest environments
- Use as a standalone product, networked to existing SCADA system, or as part of a Calisto Condition Monitoring Platform