Dry-type transformer thermostat three-phase temperature difference is large how to deal with

Dry-type transformer thermostatLarge deviations in three-phase temperatures can be investigated in the following three steps:

• Enter the thermostat setup 04 function code interface, check whether A, B, C three-phase temperature compensation is 0. If any of them is not 0, change it to 0. If all of them are 0, go to the next step to check;
• Check whether the thermostat probe is inserted into the transformer winding depth is different, if different need to adjust the installation position, if all the same into the next check;
• Check whether the sensing cable is damaged, whether the appearance of broken skin, through the resistance measurement to observe whether the probe is the same in each phase, if there is a phase of abnormal resistance, you need to replace the sensing cable, if the above are normal, you need to replace the thermostat.