verification . please help improve this article by adding citations to reliable sources . unsourced material may be challenged and removed . june 2007 learn how and when to remove this template message kelman ltd. type engineering design founded lisburn northern ireland 1994 headquarters lisburn northern ireland products dissolved gas analysis website www.kelman.co.uk kelman ltd. is a northern ireland based company that produces advanced monitoring and diagnostics technologies for large electrical transformers . it is a fully owned subsidiary of general electric ge energy . kelman s dga division was acquired by ge in august 2008 for 50m 1 and the company s product line became part of ge energy s transmission & distribution automation business . contents 1 early years 2 railway sector 3 dissolved gas analysis 4 sales offices 5 references 6 external links early years edit kelman was initially focused on the electrical distribution . during the first years of operation kelman developed a number of award winning products including a low voltage autorecloser a circuit breaker analyser and fault location equipment . railway sector edit in 2002 kelman became involved in the railway sector and launched signet an automatic reconfiguration system for the power supplied to the rail signalling network . dissolved gas analysis edit early in 2003 kelman moved into the area of dissolved gas analysis dga which is the essential test for condition monitoring of electrical transformers . kelman produced both portable and on line dga equipment which are currently in use by many utility companies . sales offices edit kelman s hq is in northern ireland uk . sales is handled by ge sales regional teams references edit press release from kelman.co.uk external links edit kelman s website retrieved from https en.wikipedia.org w index.php title kelman ltd. & oldid 658794237 categories engineering companies of northern irelandhidden categories articles needing additional references from june 2007all articles needing additional references navigation menu personal tools not logged intalkcontributionscreate accountlog in namespaces article talk variants views read edit view history more search navigation main pagecontentsfeatured contentcurrent eventsrandom articledonate to wikipediawikipedia store interaction helpabout wikipediacommunity portalrecent changescontact page tools what links hererelated changesupload filespecial pagespermanent linkpage informationwikidata itemcite this page print export create a bookdownload as pdfprintable version languages add links this page was last modified on 23 april 2015 at 05 14 . text is available under the creative commons attribution sharealike license ; additional terms may apply . by using this site you agree to the terms of use and privacy policy . wikipedia is a registered trademark of the wikimedia foundation inc. a non profit organization . privacy policy about wikipedia disclaimers contact wikipedia developers cookie statement mobile view