Heat dissipation of dry-type transformer
2022-11-10
The dry-type transformer is also an important power equipment and an important electrical appliance. The dry-type transformer heats continuously in the process of use and work. Only by heating continuously can it generate energy.
The heating capacity of dry-type transformer is basically no-load loss+load loss
Taking S9-500kVA dry-type transformer as an example, no-load loss+load loss=6.06kW, the work consumed per hour is 6.06kWh
According to the thermal work equivalent 1 card (thermal chemical card)=4.1840 joules
1 kWh=3600000 J
Heating capacity basis of dry-type transformer=no-load loss+load loss
No load loss: when the secondary winding of the dry-type transformer is open circuit and the primary winding applies the rated voltage of the rated frequency sinusoidal waveform, the active power consumed is called no-load loss.
Load loss: namely variable loss. It is proportional to the square of the current passing through. Load loss is the load loss at rated current and reference temperature. To expand, the so-called rated current means that the tapping position of the primary side must be the main tapping, not the rated current of other tapping.
For reference temperature, it depends on the heat resistance grade of insulation material of dry-type transformer. For oil immersed dry-type transformers, whether self cooling, air cooling or forced oil air cooling, there are Class A insulation materials, and the reference temperature is specified according to the traditional concept, which is 75 ℃.
The above is a general introduction to the heating capacity of dry-type transformers. You should pay attention to the calculation of the heating capacity of dry-type transformers. In this way, dry-type transformers can improve efficiency and play a more important role, and can play a greater advantage and efficiency. Please pay attention to us if you want to know more about dry-type transformers.
Qingdao Hengfengyou Electric Group, is an electrical enterprise with transmission and distribution industry as its main business, integrating product research and development, manufacturing and trade. Designated suppliers for the world's top 500 enterprises.Its main products include oil-immersed transformer,dry-type transformer,electric furnace transformer,mining transformer ,rectifier transformer .It has been successfully sold to more than 50 countries around the world. Product certification is complete. Hengfengyou Electric will provide you with the best electrical product solutions. 【https://www.hengfengyou-electric.com ； sales@hengfengyou-electric.com ； WhatsApp：+86158 5325 2696（Jack） 】
Send a message to the supplier
