100% SAFETY MARGIN IN POWER SEMICONDUCTORS
EGES Converters take advantage of its parallel resonance design to limit the working max current of thyristors to half of their actual max current limits. In other words, in EGES converters thyristors systems are designed with 100% current safety margin. Lower working currents equal lower working temperatures which in turn means much longer expected lifespan. An average thyristor has a maximum working temperature of 125 °C. Statistically, expected lifespan of an thyristor doubles at each 10 °C mark below its maximum temperature. EGES designs thyristor based converters to work at around 80-95 °C working temperatures to maximize thyristor life expectancy and minimize recurring spare part costs.
IGBT Based Converters
HIGH EFFICIENCY AT LOW POWERS WITH DIGITAL CONTROL SYSTEM
IGBT based Converters mainly differ from thyristor based systems with their digital control systems as opposed to analog control systems. Digital control systems provide much higher efficiency and more importantly prevents power factor falling under 0.98 even at low powers. During usual operation power factor stays over 0.99. Normally in thyristor based systems during low power operation, like liquid metal holding and sintering process, causes high reactive energy bills or requires an additional costly compensation system to reduce reactive energy. IGBT converters shines at these moments, eliminating these additional costs almost entirely.