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,
0 d# D+ ?  e( W: `% b) |, R                 questionable value = 0.00000000E+00,   tolerance ratio  TOLMAT = 1.00000000E-08  .    The node in question might be
                 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
7 r- i( P- j- n" X# D                 will now be set to zero, as the solution continues.
6 z( r2 B& `) U, F8 c      +++///  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,
                 questionable value = 0.00000000E+00,   tolerance ratio  TOLMAT = 1.00000000E-08  .    The node in question might be
                 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
3 i) G: P6 b- [0 m8 I+ ~4 R1 B1 ^) i                 will now be set to zero, as the solution continues.