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 MT-ST160SK/TT

Pointer thermometers with adjustable microswitches for indicating the oil temperature. The indicated temperature is the oil temperature on the sensor of the device.
The mechanical measuring system functions independently and requires no power input.

MT-ST160W/TT

The temperature of the winding is measured and determined indirectly. The temperature difference between the winding and the coolant is a function of the actual current in the winding. The transformer secondary current is proportional to the current in the transformer winding. The secondary current of the transformer feeds a heating resistor in the thermometer and so produces a display reading of the transformer load, corresponding to the actual measured oil temperature (temperature gradient). This indirect method provides a display of the average or maximum winding temperature (i.e.a thermal image). The heater current is set to a characteristic curve using a potentiometer located in the dial indicating thermometer. It can be set in the factory or by the customer.

PQ-96 PSLC242 ZT-F2/TT