发明名称 |
Self-test circuit for a shorted diode protection panel in a diesel electric locomotive |
摘要 |
A self-test system for a shorted diode protection circuit in an electric vehicle propulsion system includes a series of relays for selectively coupling a battery in circuit with a field winding of a generator, the shorted diode protection circuit being coupled in voltage sensing arrangement with the field winding. The relays are operated to induce current in forward and reverse directions through the winding in separate test stages. At each stage the winding is disconnected from the battery so that inductive reactance creates a voltage on the winding to actuate the protection circuit. A system controller records whether the protection circuit is responsive and therefore operable and alerts a vehicle operator.
|
申请公布号 |
US5892342(A) |
申请公布日期 |
1999.04.06 |
申请号 |
US19970845126 |
申请日期 |
1997.04.21 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
FRIEDLANDER, ARIEL;WORDEN, BRET DWAYNE;SMITH, MYRON LEE;COOPER, CHARLES EARL |
分类号 |
B60L3/00;G01R31/28;G01R31/327;H02H3/05;H02H7/06;H02H7/125;(IPC1-7):H02H7/06;H02P9/00 |
主分类号 |
B60L3/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|