Winding thermometer dial shows failure analysis

Winding thermometer as transformer measurement tool in the measurement of occasional failures are inevitable, there are many possible problems form or manner, bimetallic thermometer manufacturers instrument summarized a lot of winding thermometer common problems, to share with you today is: winding thermometer plate display failure analysis and solution. At the scene of the winding thermometer dial shows don't usually fails, if the display is not normal, there are two possibilities: first, the elastic element of transformer winding thermometer, the sensing catheter or inductive components there is a problem; Second, transformer ct (current transformer) secondary current normal access BL - no E converter also can make the dial shows fault occurs. According to the above two situations, should first check whether secondary current wiring in fastening, BI, E converter gear selection is correct, confirm the wiring place has tightened and you choose the right range, then the BL - is measured with a multimeter E whether current value on both sides of the converter and the selected BL - E you determine the current value of the range of the converter. If inconsistent explain current transformer is damaged, if consistent, explain its elastic element, sensing the catheter or inductive components appeared problem, at this time the meter should be replaced. Above is winding thermometer dial failure causes and solutions, in temperature monitoring of transformer winding thermometer have very big effect, if it is found that winding thermometer fails, must be timely repair or replacement, or damages to the life of the transformer is not worth while.