Ring differential protection method and device for distribution network
A differential protection device and differential protection technology, applied in the field of power grid, can solve the problems of large power failure area and long time, and achieve the effect of reducing power failure area, fast action speed and high reliability
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[0044] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.
[0045] Such as figure 1 As shown, a distribution network ring differential protection method, including the following steps:
[0046] Step 1: Deploy the DTU device on the distribution substation in the substation, and each DTU device is connected in a ring through Gigabit optical fiber, and configure the parameters of the DTU device; that is, the deployment of the MB1, MB2MB3MB4 distribution station on the 1# substation corresponds to The ring type differential DTU device. Each DTU device is connected in a ring through Gigabit optical fiber, as shown in the dotted line in the figure, and the DTU device is not sho...
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