Transformer for Marine - Maritime/Shipbuild/Water Transport - Maritime
Nowadays electric propulsion with gas turbine or diesel engine driven power generation is used in hundreds of ships of various types and in a large variety of configurations. Azimuthing thrusters and podded thrust units, propulsion configurations for transit, maneuvering and station keeping have merged in several types of vessels in order to utilize installed thrust units for optimal transit, maneuvering and dynamic positioning.
Details
When a short circuit occurs on the secondary side of the power transformers in the power system, it takes a certain amount of time from the short circuit to the circuit breaker trip. During this period, the transformer winding still needs to withstand a amplitude of 20-30 times of the steady-state current. The electric power in the shock winding of short circuit current is proportional to the square of short circuit current. If the transformer winding is not enough to bear short circuit, it will cause damage to the transformer winding. Therefore, it is very important to accurately check and reliably design transformer short-circuit capacity during transformer design.