A Newton solution for 3 coupled nonlinear elements has failed to converge within the iteration limit MAXZNO = 50. - j, l. T' K+ j0 aThe current residual is 3.77841495E+02, which exceeds the sloppy convergence tolerance EPSTOP = 1.00000000E-01. The first of4 g+ M5 p' f; B. f
the coupled, true, nonlinear elements (in order of data input) is located in row 7 of the nonlinear element table, and it 7 T: j: l, A# w g& kconnects node "X0007C" with node " ". The final coupled element is in row 9, and the matrix rank is 3. Finally, the* ]8 ], x, k* ?! H$ p$ |. n
simulation time is T = 1.08700000E-05. Possible corrective actions include a decrease in the time-step size DELTAT, an increase. u. c6 S' ?* K( h" g. c9 w
in the iteration limit MAXZNO, an increase in the divergence tolerance EPSTOP, and artificial splitting of the subnetwork in2 ?' i: x1 W7 K. o4 Y, P8 r
question by distributed-parameter lines (to reduce the number of coupled elements). In addition, it is possible for the user to; C/ _# }) K, v1 |- m
make a solution impossible by unrealistically limiting the Newton corrections. The user should remember that there can be no 0 `) z+ K9 l& Isolution if his bound on arrester voltage is less than the true solution voltage. The bound has a default value of 1.5 per unit,! s5 \1 o* Z* m2 k; ^
although it can be changed by a"ZINC OXIDE" special request (columns 57-64, variable ZLIN(2)). Is this parameter involved? The % J8 F" n& Z; D& Vnumber of solution variables that are being limited this way is 0. If this value is positive, think hard about ZLIN(2).