Temperature controller power supply and alarm temperature for dry-type transformers

How to connect the power supply of the temperature controller of a dry-type transformer and the wiring method of the power supply of the temperature controller of a dry-type transformer

There is a movable door next to the dry-type transformer that can be opened. In addition, all related hinges and transformer boxes are connected. The dry-type transformer temperature controller is installed in an embedded method at the location of the movable door.

The power supply terminal of the dry-type transformer temperature controller has a power switch, which is installed on a rack of the dry-type transformer located on the small door of the transformer. There is a head connected to the 220V AC power switch of the dry-type transformer, and another aspect is used for the power supply of the dry-type transformer temperature controller. This new method of wiring for the power supply of the dry-type temperature controller is designed reasonably, and the transformer is stable and safe. Different models of dry-type transformers can be used for child labor. During the power outage inspection and maintenance of the temperature controller of the dry-type distribution transformer, it ensures that the user's substation can operate normally without power outage, with few power outages and an increase in the reliability of the power grid operation.

Dry type transformer temperature controller alarm temperature, dry type transformer temperature controller alarm processing

When the temperature controller of Fujian Yingnuo Technology BWDK-S201 dry-type transformer experiences an over temperature alarm prompt or sound, the handling method is as follows:

The control settings of the dry transformer temperature controller during operation: the cooling fan of the dry transformer is automatically turned off when the winding temperature of the dry transformer is 80 ℃, the cooling fan of the dry transformer is automatically turned on when the winding temperature of the dry transformer is 100 ℃, the high temperature alarm is activated when the winding temperature of the dry transformer is 130 ℃, and the ultra-high temperature trip is activated when the winding temperature of the dry transformer is 150 ℃.  

How to deal with an alarm in the temperature controller of a dry-type transformer: Check if the operating status of the dry-type temperature controller is normal, then measure the temperature of the transformer coil to see if it is the same as the temperature displayed on the LCD screen of the electronic temperature controller. If it is not the same, it indicates that the temperature controller is faulty. The actual measurement of the temperature of the transformer coil is the standard. For dry-type transformers, an over temperature alarm is triggered after exceeding the temperature alarm. The processing methods include:

Whether the cooling fan of the dry-type transformer is running normally in the open state. If the cooling fan of the dry-type transformer is in the closed state, manually start the cooling fan of the dry-type transformer. If the cooling fan of the dry-type transformer cannot be turned on, it indicates that the dry-type transformer cannot operate normally. Another method of reducing temperature should be adopted to lower the temperature of the dry-type transformer;  

If other methods are used to test the temperature of the dry-type transformer to be abnormal, it indicates that there is a problem with the dry-type transformer. The dry-type transformer should be immediately shut down.

The temperature of a dry-type transformer is more than 10 degrees higher than that of a normal dry-type transformer under the same conditions, and there is a trend of further temperature rise, indicating that there is a significant problem of internal faults in dry-type transformers.

If a high temperature alarm occurs in a dry-type transformer, you can also check whether the dry-type transformer is operating under overload. If the dry-type transformer operates under overload for an extended period of time, it can also cause the temperature to exceed the limit temperature, causing the temperature controller to initiate an ultra-high temperature trip, cut off the equipment with excessive load in the dry-type transformer, and continue to monitor the temperature of the dry-type transformer to see if it will decrease to the temperature during normal stable operation.

Dry type transformer temperature controller tripped

The reason for the tripping of the temperature controller of a dry-type transformer is generally that the operating temperature of the dry-type transformer has reached the ultra-high temperature upper limit, and the temperature controller automatically starts the ultra-high temperature power switch automatic tripping device.

The main switch of the dry-type transformer substation or the temperature controller equipped with the dry-type transformer equipment starts automatic tripping. Dry type transformers can be detected for short circuits or current issues. If the temperature of the dry type transformer is too high and overload occurs, a professional transformer temperature controller expert can create a temperature controller solution.

Dry type transformers are equipped with a device to protect them from exceeding the temperature limit. The reason is that a temperature measuring probe is inserted into the winding of a three coherent transformer. If the temperature exceeds the upper limit of the preset temperature value of the temperature controller, it will automatically start tripping the high-voltage side circuit breaker.

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