| 词条 | Critical field resistance |
| 释义 |
Critical field resistance is a term that is associated with a shunt DC generator. In a DC shunt generator, the voltage induced across the armature, Va, is directly proportional to the flux acting across it, The flux in a DC generator is directly proportional to the field current, If. The critical field resistance is defined as the maximum field circuit resistance (for a given speed) with which the shunt generator would excite. The shunt generator will build up voltage only if field circuit resistance is less than critical field resistance. It is a tangent to the open-circuit characteristics of the generator (at a given speed). References
External links
2 : Electric motors|Electrical generators |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。