Cathode protection device and protection method thereof
A cathodic protection and anode technology, which is applied in the field of cathodic protection devices, cathodic protection devices and their protection, and can solve the problems that the normal design effect of the cathodic protection potentiostat cannot be exerted, it is difficult to determine the resistance, and the pipeline is burned.
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Embodiment 1
[0040] Such as figure 1 , 3 As shown in -7, a cathodic protection device includes a cathodic protection potentiostat 1, a positive power electronic switch group 2, a negative power electronic switch group 3, a current transformer 4, a computer controller 5, an anode 6, and a pipeline 7 , Soil resistance 8, coating resistance 9. The positive terminal of the cathodic protection potentiostat 1 is connected to the collector C terminal of the positive power electronic switch group 2; the emitter E terminal of the forward power electronic switch group 2 is connected to the emitter E terminal of the negative power electronic switch group 3; The collector C end of the negative power electronic switch group 3 is connected to one end of the anode 6 through the coil of the current transformer 4; the other end of the anode 6 is connected to one end of the soil resistance 8; the other end of the soil resistance 8 is connected to the coating resistance 9; the other end of the coating res...
Embodiment 2
[0059] In this example, if Figure 2-7 As shown, the difference from the embodiment is that the positive end of the cathodic protection potentiostat 1 is connected to the collector C terminal of the forward power electronic switch group 2; the emitter E terminal of the forward power electronic switch group 2 passes through the current The coil of transformer 4 is connected to one end of anode 6; the other end of anode 6 is connected to one end of soil resistance 8; the other end of soil resistance 8 is connected to one end of coating resistance 9; the other end of coating resistance 9 is connected to pipeline 7 The other end of the pipeline 7 is connected to the collector C terminal of the negative power electronic switch group 3; the emitter E terminal of the negative power electronic switch group 3 is connected to the negative terminal of the cathode potentiostat 1; the positive power The gate G terminal of the electronic switch group 2 is connected to one end of the compute...
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