断路器控制回路的合闸线圈和接触器烧毁现象是变电运行工作中经常遇到的普遍问题。
The burn of circuit breaker closing coils and contactors is a common problem in the switchyard operates.
介绍在仿真变电站断路器控制回路仿真设计中，如何利用双位置继电器解决断路器机构触点仿真设计的问题。
It is described in this paper that how to use two-position relay to solve simulation design of contact of CB in control circuit of simulation substation.
针对存在的技术问题，对断路器控制回路进行了改造。实践证明，该方案运行安全可靠，改造工作量小，改造费用低，具有较高的使用价值。
It has proved that the retrofitting scheme is safety in operation with a little workload and less expenses. The retrofitting scheme is valuable and practical.
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