ATPDraw 运行时出现这+++/// Caution. Disconnected subnetwork.

xingzhexiaobai

ATPDraw 运行时老出现这个是怎么解决的啊   +++///  Caution.  Disconnected subnetwork.  During the Y-matrix elimination for phasor voltages, a near-zero diagonal element                 for node  "XX0014"  exists just prior to reciprocation.    Statistics follow:  Original ABS(Ykk) = 0.00000000E+00,
* F+ z  W) J0 H9 [) L                 questionable value = 0.00000000E+00,   tolerance ratio  TOLMAT = 1.00000000E-08  .    The node in question might be
9 c' O- i7 X+ Q                 connected to other nodes, forming a subnetwork, but that subnetwork has no, or only very weak, paths to ground or
                 to any other known voltage node of the steady-state network.   The solution voltages for this isolated subnetwork
                 will now be set to zero, as the solution continues.
& U- H" |" T' M& r) S0 A! B7 Z      +++///  Caution.  Disconnected subnetwork.  During the Y-matrix elimination for phasor voltages, a near-zero diagonal element
                 for node  "XX0004"  exists just prior to reciprocation.    Statistics follow:  Original ABS(Ykk) = 0.00000000E+00,
% C* e. C7 M  I; G  t- g4 U1 \                 questionable value = 0.00000000E+00,   tolerance ratio  TOLMAT = 1.00000000E-08  .    The node in question might be
6 e  Z& W* x5 I9 k6 X" f8 V1 S                 connected to other nodes, forming a subnetwork, but that subnetwork has no, or only very weak, paths to ground or
                 to any other known voltage node of the steady-state network.   The solution voltages for this isolated subnetwork
                 will now be set to zero, as the solution continues.