【摘要】 运用微机技术和数字电路技术，介绍了电机运行保护电路，经实践证明，性能优良运行可靠，性价比高，具有很大的推广价值。更多还原

【Abstract】 The computer and digital circuit techniques are applied to protect circuit during motor operation, Our practice has proved that this kind of ciruit quality is good in reliable during motor operation and high in character and price ratio, therefore it possesses great application value.更多还原