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Controlled closing on shunt reactor compensated transmission lines. I. Closing control device development

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9 Author(s)

A control device for point-on-wave closing or autoreclosing of shunt reactor compensated transmission lines for the reduction of closing overvoltages is presented. The device is the first of its kind. It was put into field service successfully more than a year ago. Development aspects and basic investigations on the relevant transient switching phenomena are presented. The algorithm employed works independently of the shape of the voltage signal to be synchronized on by means of pattern recognition. Peculiarities of the hardware are high redundancy and a system to bypass the controller at any malfunction of the electronic circuits. The efficiency of the controller was verified by a combination of transient network analyser tests and EMTP simulations showing the ability of the device to suppress overvoltages. This procedure is generally recommended for future application of control devices as a type test procedure

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Power Delivery, IEEE Transactions on  (Volume:12 ,  Issue: 2 )