Transformers are a common electrical equipment used to convert a certain value of alternating voltage to another value of alternating voltage at the same frequency. Step-up transformers are specifically designed to convert lower values of alternating voltage to a higher value at the same frequency. They are widely used in high-frequency applications such as inverters.

Tunnel construction high-voltage transformer applicable sites
1. Environmental Temperature: -20~85°F
2. Relative Humidity: ≤90%
3. The installation site should be free from gases, steam, chemical deposits, dust, dirt, and other explosive and erosive media that could severely affect the equipment's insulation.
4. The installation site should be free of severe vibration or jarring.
5. Prevent lightning strikes, rain damage, fire hazards, and do not crush or step on equipment during inclement weather.

Tunnel construction step-up transformer selection
1. Customers need to measure both no-load voltage and load voltage values for their voltage conditions.
2. Transformer and Equipment Distance - The user needs to physically measure the distance between the transformer and the electrical equipment they use.
3. Cable Condition of Users - Users are required to inspect the condition of their cables. Generally, it should match the total power of the equipment.
4. Total Equipment Power Rating - Users must verify the total power rating of the equipment they are using.
Based on the above information, users can select the corresponding model product or propose customization.

Test Transformers (full name: AC High Voltage Test Transformers), also known as step-up transformers, are essential testing equipment for a wide range of users including power stations, power supply and distribution systems, and scientific research units. They are used for insulation strength tests under specified voltages on various electrical products, equipment, and insulating materials, to evaluate product insulation levels, identify insulation defects in the test items, and measure the ability to withstand overvoltage. Step-up transformers (test transformers) are further categorized into oil-immersed high voltage test transformers, gas-filled high voltage test transformers, and dry-type test transformers.