Description

The Qualitrol winding temperature gauge (150°C, 6 m, 4-switch) is manufactured in Sweden for monitoring transformer winding temperatures using the thermal image method. It has a 6-metre capillary tube connecting the sensing bulb to the Bourdon-tube gauge head, and four independent microswitch contacts settable to different temperature levels for alarm, cooling fan start, and trip functions. The gauge provides local analogue temperature indication and remote switching up to 150°C.