改进后的制动电源制动性能有了明显提高，运行稳定，能满足煤矿安全生产的要求。
The power run steadily, and its brake function was improved apparently, and satisfied with require of safety in production of coal mine.
在无法取得直流电源的情况下，利用可控硅元件，也可实现能耗制动。
On the condition without DC power, the SCR could be used to realize dynamic braking.
能耗制动是在异步电动机切离三相电源后，在定子回路通入直流电流，实现能耗制动。
The dynamic braking means that after three-phase voltage is switched off asynchronous dynamo the dc current flows into the stator circuit to realize dynamo braking.
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