In order to protect the dry-type transformer, a lot of protection for the dry-type transformer is indispensable. For the dry-type transformer, it is more important to protect the basic performance and operation efficiency of the dry-type transformer, which is the most direct reason for us to ensure the safety performance of the dry-type transformer. All kinds of protection and alarm of dry-type transformer should be continuously raised, and some of them need to carry out alarm during operation. For dry-type transformer, there is a kind of trip, which is a normal protection measure. So for dry-type transformer, should high-temperature trip be taken? And how to deal with high-temperature trip?
For high temperature trip of dry-type transformer, it is more necessary to cut off power when the temperature of dry-type transformer reaches a certain value, which is a safe and convenient way. Is it normal for ultra-high temperature?
First of all, you need to be clear that when the temperature controller reaches a certain temperature (generally set at 150 ℃), it outputs a closing signal, which is usually led to the tripping system of the high voltage cabinet. The temperature control tripping only provides a switch function. If the signal is connected properly, the sensor probe on the transformer can not be inserted into the temperature control tube, and the probe can be heated to 150 ℃ to see whether it will trip. You can also lower the set value of trip temperature. For example, the normal temperature of transformer is 80 ℃, you can set it at 75 ℃ to see if it will trip?
The main gate of the whole transformer substation or the temperature controller of the transformer will trip.
Transformer is a device that uses the principle of electromagnetic induction to change the AC voltage. The main components are primary coil, secondary coil and core (magnetic core). The main functions are: voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization (magnetic saturation transformer), etc. It can be divided into: power transformer and special transformer (furnace transformer, rectifier transformer, power frequency test transformer, voltage regulator, mine transformer, audio transformer, intermediate frequency transformer, high frequency transformer, impact transformer, instrument transformer, electronic transformer, reactor, mutual inductor, etc.). T is often used as the beginning of the circuit symbol number. Example: T01, t201, etc.
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