9 gas on-line OLTC DGA expandable with add-ons to a Transformer Monitoring System (TMS)
Patented Kelman DGA 900 TAPTRANS is designed specifically for transformers with an On-Load Tap Changer (OLTC), which is recognised as one of the most vulnerable parts of the transformer and which accounts for a large portion of unplanned outages. It offers discrete multigas on-line DGA and moisture monitoring, separating the main and selector tanks from the diverter tank to avoid any risk of contamination. Utilizing photo-acoustic spectroscopy (PAS) measurement technology 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 on all three connected oil tanks. The Kelman DGA 900 TAPTRANS has also new Rapid Mode for measuring 4 critical gases and moisture of the oil in about 30 minutes.
Innovative design of new Kelman DGA 900 TAPTRANS enables add-ons like electromechanical monitoring of OLTC and monitoring transformer bushings on one integrated platform.
Kelman DGA 900 TAPTRANS monitoring transformer main tank, diverter and selector of On-Load Tap Changer