The 33kV bus-bar of a station are in two sections A and B separated by a reactor. Section A is fed from four 10 MVA generators each having 20% reactance and section B is fed from the grid through 50 MVA transformer of 10% reactance . The circuit breakers have rupturing capacity of 500 MVA. Find the reactance of the reactor to prevent the circuit breakers being overloaded if a symmetrical short-circuit occurs on an outgoing feeder connected to it.
Three-Phase Transformers
Three-segment transformers are a type of transformer used to transform voltages of electrical systems into three ranges. Two type transformers are shell-type transformer and core type transformer. In brief, it could be described because of the exquisite kinds of configurations.
Transformer
Ever since electricity has been created, people have started using it in its entirety. We see many types of Transformers in the neighborhoods. Some are smaller in size and some are very large. They are used according to their requirements. Many of us have seen the electrical transformer but they do not know what work they are engaged in.
The 33kV bus-bar of a station are in two sections A and B separated by a reactor. Section A is fed from four 10 MVA generators each having 20% reactance and section B is fed from the grid through 50 MVA transformer of 10% reactance . The circuit breakers have rupturing capacity of 500 MVA. Find the reactance of the reactor to prevent the circuit breakers being overloaded if a symmetrical short-circuit occurs on an outgoing feeder connected to it.
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