发生发展性故障后，利用保护安装处的全电流减去求得的支路电流得到发展性故障后的故障分量电流。
After an evolved fault occurred, the fault superimposed components can be calculated through subtracting the solved load currents from the currents at the measuring point.
对受端继电器，提出仅利用保护安装处的电压变化值构成同相点切换判据，可以有效降低系统参数的影响。
For the receiving end, a new switching criterion based on the bus voltage is described, which is immune to the system parameters.
但为了保护喷气发动机免遭海水腐蚀，应该把它安装在飞行器的顶部。这样飞行器在起飞或者降落时溅起的水花不会打到进气口处。
But protect a jet engine against saltwater corrosion and position it high on the craft so the spray doesn't enter the intake during take-off and landing, and it will work fine.
而雷电事故主要出现在没有安装过电压保护器的杆塔处。
And lightning accident main without installing overvoltage protector tower.
而雷电事故主要出现在没有安装过电压保护器的杆塔处。
And lightning accident main without installing overvoltage protector tower.
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