Millised on peamised erinevused jõutrafode ja jaotustrafode vahel?

Power transformers are mainly used in power transmission systems, working at high voltage levels, such as 110kV, 220kV, etc., with large power, usually 10000KVA and above. Distribution transformers are mainly used in power distribution systems, working at medium and low voltage levels, such as 10kV and below, with small power, generally below 2500KVA.

Power transformers are mainly responsible for reducing the high-voltage power transmitted by the power grid to low-voltage power suitable for power supply companies or industrial users, and usually have no load adjustment capacity. Distribution transformers are responsible for reducing the power of high-voltage lines to low voltages required by homes and businesses, and usually have a certain load adjustment capacity.

Power transformers have complex structures, large volumes, and heavy weights. They are mainly composed of multiple coils on the high-voltage side and the low-voltage side, oil tanks, cooling devices, etc. Distribution transformers have relatively simple structures, small and light volumes, and are composed of only a small iron core and a few coils.

Power transformers are mostly used in power systems for long-distance power transmission and voltage transformation between substations, and are installed in various power stations or substations. Distribution transformers are mainly used in urban and rural low-voltage distribution systems to reduce the voltage of low-voltage power grids to a range acceptable to users, and are usually installed in distribution stations or near users.

In summary, there are significant differences between power transformers and distribution transformers in terms of voltage level, power, function, structure, size, and installation location. These differences make them play different roles in the power system, and jointly ensure the reliable transmission and distribution of electric energy.