## 3 Electrode Station Configuration
### General Data
Second Electrode Station Configuration--Straight Frames in Series, Each Vertically Placed on the Longitudinal Axis of the Dam  
On the basic form of Figure 4, without changing the arrangement of the frame of Figure 3 (except that it is now vertical to the dam), the first modification is made, according to which the frames are placed one after the other vertically to the axis of the protective dam, on its inner side, as shown in Figure 6, on which the following are marked:  
* The width of the dam \(t_{d}\) along the xOx\({}^{\prime}\) axis;
* The distance of the closest electrode from the axis of the dam \(d_{r1}\) along the axis xOx\({}^{\prime}\);
* The total frame length \(\ell_{f}\);
* The estimated width of the critical frame zone \(d_{fv}\) vertical to the frame and parallel to the dam along the yOy\({}^{\prime}\) axis, which matches the distance between successive frames, which is estimated to ensure the critical zone for a diver drop for repair, as obtained from single-frame simulations;
* The estimated length of the critical frame zone \(s_{c}\) along the frame length, vertical to the dam here, by xOx\({}^{\prime}\), as obtained from single-frame simulations;
* The width \(d_{stv}\) of the electrode station critical zone vertical to the dam (along the xOx\({}^{\prime}\) axis), as obtained from the electrode station simulations;
* The length of the electrode station critical zone \(\ell_{chd}\) on the dam and below its centre (along the yOy\({}^{\prime}\) axis), as obtained from the electrode station simulations;
* The length of the electrode station critical zone \(\ell_{cud}\) on the dam and above its centre (along the yOy\({}^{\prime}\) axis), as obtained from the electrode station simulations. The total length of the electrode station \(\ell_{stat-II}\) is obtained as follows:  
\[\ell_{stat-II}=N_{frame}{}^{\prime}\times d_{el}+\left(N_{frame}{}^{\prime}+ 1\right)\times d_{fv} \tag{28}\]  
The width of the respective structure is the length of an electrode frame \(\ell_{f}\). In reality, however, the surface \(S_{\sigma-II}\) that can be subjected to critical electric field values (not necessarily all of it at the same time) is equal to:  
\[S_{\sigma-II}=\left(2\times d_{stv}+\ell_{f}\right)\times\left(\ell_{chd}+\ell _{cud}\right) \tag{29}\]  
This arrangement approximates the typical arrangement of near-shore submerged electrodes but is characterised by greater demands on the suspension-lifting-positioning systems of the electrodes due to the greater torque developed, owing to the larger lever-arm (before, the electrode was at a distance \(d_{r1}\) from the dam, while the farthest electrode is now at (\(d_{r1}+\ell_{f}\))). Additionally, it extends over a larger area of the pond, i.e., the latter is utilised to a greater extent for the removal of chlorine, yet greater costs are required for the dredging of the respective basin. Third Electrode Station Configuration--Straight Frames in Two Overlapping Rows, Each Placed Parallel to the Longitudinal Axis of the Dam in Alignment with Each Other  
On the basic form of Figure 4, without changing the arrangement of the frame of Figure 3, the second modification is made, according to which the frames are placed in two rows, parallel to the axis of the dam on its inner side and aligned between the rows, as shown in Figure 7. In addition to the elements listed in Figure 4, the widths \(d_{stv_{\_}Ox}\) and \(d_{stv_{\_}Ox^{\prime}}\) of the critical zone of the electrode station vertical to the dam (along the semi-axes Ox and Ox\({}^{\prime}\), respectively) are additionally mentioned, as obtained from the simulations of the electrode station. The total length of the electrode station \(\ell_{stat-III}\) is given as follows:  
\[\ell_{stat-III}=\left[\frac{N_{frame}^{\prime}}{2}\right]\times\ell_{f}+ \left(\left[\frac{N_{frame}^{\prime}}{2}+1\right]\right)\times s_{\_}c \tag{30}\]  
Figure 6: Second electrode station configuration—Plan view of six frames in series, each one placed vertically on the dam axis.