发明名称 |
DC power supply circuit |
摘要 |
A dc power supply circuit connects a plurality of dc circuit breakers to a semi-conductor converter, returning again to the semi-conductor converter through a dc driving part such as an electric railcar connected to each dc circuit breaker. A second dc circuit breaker of larger capacity than the above-mentioned dc circuit breakers is provided in a return circuit and opened when a short circuit current is detected. A current decreasing means opens the second dc circuit breaker to decrease the short circuit current and includes, for example, a series-circuit of a resistor R and a reactor L. The dc power supply circuit has a large interruption capacity with low resistance loss.
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申请公布号 |
US5576580(A) |
申请公布日期 |
1996.11.19 |
申请号 |
US19940358764 |
申请日期 |
1994.12.19 |
申请人 |
HITACHI, LTD. |
发明人 |
HOSODA, MINORU;YOSHIDA, TORU;OUCHI, SHIGETOSHI;HONDA, HARUO;FUJITA, YASUNOBU;ICHIKAWA, FUMIHISA;YAMADA, KOUYA |
分类号 |
B60M3/02;H02H3/02;H02H7/26;H02H7/30;(IPC1-7):H02J9/06 |
主分类号 |
B60M3/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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