We study the calculating method and program the calculating software to simulate the exciter flow current on the no-load switching-in of transformer.

对涌流瞬态过程进行了分析，研究计算办法并编制了计算软件，可以对变压器空载合闸时的励磁涌流进行计算模拟。

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Both the simulation and experimental results indicate that the dual flapper-nozzle servo valve has good flow-current characteristics and strong ability to control small flow rate.

理论分析和实验结果表明：双喷嘴挡板电液伺服阀具有良好的流量-电流比例特性和小负载流量的控制能力。

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Both the simulation and experimental results indicate that the dual flapper-nozzle servo valve has good flow-current characteristics and strong ability to control small flow rate.

理论分析和实验结果表明：双喷嘴挡板电液伺服阀具有良好的流量-电流比例特性和小负载流量的控制能力。

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