Kelman DGA 900 MULTITRANS
9 Gas on-line monitor for measuring DGA across multiple transformers
Knowledge of the condition of transformers is essential for all electrical networks and on-line monitoring of transformers is an increasingly vital component of successful asset management programs. The comprehensive information provided by the Kelman™ DGA 900 MULTITRANS not only allows expensive failures to be avoided but enables asset capabilities to be maximized.
The DGA 900 MULTITRANS offers discrete multigas on-line DGA and moisture monitoring across three adjacent single phase transformers, enabling a very cost effective monitoring solution. Utilizing photoacoustic spectroscopy (PAS) measurement technology, well suited to field application, it provides laboratory challenging levels of precision and repeatability. Full 9 gas oil sampling and analysis can be performed as often as every hour on a single tank and up to once every three hours if all three possible oil tanks are connected.
Cutting Edge DGA
- Nine gases plus moisture in a single monitor
- Automated headspace gas extraction and state of the art photo-acoustic spectroscopy (PAS) measurement technology
- No carrier or calibration gases required
- Long service life with minimal maintenance
Ease of Use
- Easy installation: no outages required reducing expense and inconvenience for user
- No consumables and minimal maintenance reduces running costs and site visits
- Extensive remote communications options and protocols available (including IEC® 61850)
- Sampling frequency is user-configurable, up to once per hour
- Can be connected to normal AC power or protected DC supply
- Supports new lower flammability ester based oils as well as mineral insulation oils
Configurable Alerts
- Two alarm levels (one for Caution and one for Alarm) can be set to show increasing severity
- Sunlight visible front panel LED arrays
- Six user configurable alarm relay contacts
- Caution and alarm modes can be used to automatically increase sampling frequency
Key Benefits
- Provides remote alert and multi-gas diagnostic of deteriorating transformer condition
- Expedites operational decisions without needing to go to site for manual oil sampling
- Issues can be detected in their infancy, avoiding unexpected failures and facilitating planned outages
- Anchors condition based maintenance and asset replacement strategies on hard data
- No need for consumables or frequent recalibration to operate at optimum performance
- New “Rapid Mode” provides near real-time insight on fast developing faults
- Enhanced computing power and scalable I/Os for a flexible transformer monitoring solution
- Compatible with mineral insulating oils and newer ester based fluids (natural and synthetic)
Applications
Knowledge of the condition of transformers is essential for all electrical networks and on-line monitoring of transformers is an increasingly vital component of successful asset management programs. The information provided by multi-gas on-line DGA allows valuable asset capabilities to be maximized and expensive failures to be avoided. MULTITRANS is best suited for monitoring large, system critical or already compromised transformers, arranged in a 3 single phase tank configuration, with a view to extending asset life, preventing unexpected failure and operating on a condition based maintenance schedule.
Integrated Solution
- Integrates to Perception Fleet to provide health/risk ranking of the monitored transformers compared to other fleet assets
