We Claim:
1. An alternating-current electric vehicle that receives an alternating-current
power from an overhead wire, comprising:
a plurality of main transformers electrically connected to the overhead wire in parallel;
a plurality of circuit breakers each connected between the overhead wire and corresponding one of the plurality of main transformers; and
a control device configured to close and open the plurality of circuit breakers,
when power feeding from the overhead wire to the alternating-current electric vehicle is started, the control device being configured to provide a difference in a closing phase of an overhead wire voltage at the time of closing of the plurality of circuit breakers to sequentially close the plurality of circuit breakers.
2. The alternating-current electric vehicle according to claim 1, wherein the control device is configured to sequentially close the plurality of circuit breakers in accordance with a time difference set based on the difference in the closing phase.
3. The alternating-current electric vehicle according to claim 1 or 2, wherein the control device is configured to set the difference in the closing phase to a value obtained by dividing 360 degrees by a number of the plurality of main transformers.
4. The alternating-current electric vehicle according to any one of claims 1 to
3, wherein the control device is configured to sequentially close the plurality of circuit
breakers within one cycle of the overhead wire voltage.
5. The alternating-current electric vehicle according to any one of claims 1 to
4, wherein in a case where the alternating-current electric vehicle enters a feeding
section from an insulation section of the overhead wire, the control device is configured

to open the plurality of circuit breakers in the insulating section, and then, in the feeding section, provide the difference in the closing phase to sequentially close the plurality of circuit breakers.