A Newton solution for 3 coupled nonlinear elements has failed to converge within the iteration limit MAXZNO = 50.. N+ U1 @( q8 m0 O2 c) m, ^
The current residual is 3.77841495E+02, which exceeds the sloppy convergence tolerance EPSTOP = 1.00000000E-01. The first of 8 z; o7 R2 s% J/ P1 t3 j5 [) ythe coupled, true, nonlinear elements (in order of data input) is located in row 7 of the nonlinear element table, and it : A7 g; ?; x( _' b7 W+ z2 `. V9 zconnects node "X0007C" with node " ". The final coupled element is in row 9, and the matrix rank is 3. Finally, the' Z" F& `4 i, H/ r1 N' ?
simulation time is T = 1.08700000E-05. Possible corrective actions include a decrease in the time-step size DELTAT, an increase' H0 @+ K! P# R4 j) H
in the iteration limit MAXZNO, an increase in the divergence tolerance EPSTOP, and artificial splitting of the subnetwork in & B# H& T1 J: U mquestion by distributed-parameter lines (to reduce the number of coupled elements). In addition, it is possible for the user to1 T; Q/ T/ ^" L2 U! D% R
make a solution impossible by unrealistically limiting the Newton corrections. The user should remember that there can be no ! x8 x! \1 o, j: x7 S$ Esolution if his bound on arrester voltage is less than the true solution voltage. The bound has a default value of 1.5 per unit, ; A6 [* e* R' q5 H3 {although it can be changed by a"ZINC OXIDE" special request (columns 57-64, variable ZLIN(2)). Is this parameter involved? The8 G/ Y% h8 s3 J2 x; W! Y) b# v5 l
number of solution variables that are being limited this way is 0. If this value is positive, think hard about ZLIN(2).