There are two installation methods for generator circuit breakers: one is installed on the generator output line after being amplified by the transformer, and the other is installed directly on the output busbar of the generator. Since the latter method requires a very large breaking current from the circuit breaker, export circuit breakers for generators of 200 MW and above cannot be produced domestically and are all imported. As a result, most generators use the old breaker wiring method. This circuit breaker is installed on the transformer output of the generator-transformer group. Due to the presence of transformer impedance, the short circuit current decreases significantly. The breaker can be produced locally.
If you work in a wind farm, the conditions are relatively difficult, because places with good wind resourcess are remote areas such as the grasslands of Inner Mongolia, the east coast and Xinjiang. , Yunnan and northeast China. If you work in a wind power equipment company, because these companies are machinery and equipment manufacturers, you usually need to go to wind farms located in the suburbs of cities with convenient transportation, such as Goldwind Technology, Huarui and Dong Qi, but there will be corresponding subsidies, generally 100 yuan/day. If you work for a wind equipment parts supplier, you have fewer opportunities to travel onsite. The installation location requirements for wind turbines are as follows: 1) Abundant wind resources. Small wind turbines should generally be used in areas with abundant wind resources, that is, the annual average wind speed is greaterat 3 m/s and the cumulative number of annual effective wind speeds of 3 to 20 m/s is greater than 3,000. hours. (2) There is a stable dominant wind direction. Wind turbines should be installed wherever possible where the prevailing wind direction is relatively stable and seasonal changes are relatively small. (3) Small turbulences. Turbulence not only reduces the power output of a wind turbine, but also causes mechanical vibrations throughout the wind turbine. When turbulence is significant, mechanical vibrations can damage wind turbines. (4) Weather factors have little influence. Try to avoid areas where the airflow speed changes frequently and drastically to prevent the entire device from vibrating and damaging the fan. Avoid areas prone to strong winds. Strong winds are very destructive to wind turbines, so the impact of ice and snow must be considered.sticky snow on the shape of wind turbine blades. It should be emphasized that due to differences in terrain, relief and geology, the choice of installation location requires specific analysis and please seek professional advice.