The winding temperature indicator (WTI) and oil temperature indicator (OTI) are specially designed for measuring and controlling winding/oil (in the top layer) temperature of transformers. WTI/OTI possesses favorableprotective performance and can be used under outdoor conditions for a long term. Three setsof adjustable temperature switches are installed inside the meter, respectively for start-upof multiple sets of cooling system, over-temperature alarm and so on. Meanwhile, it couldtransfer the temperature signal to the remote computer system and make it real to synchronouslydisplay and control the transformer temperature.
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