Table  8-1. Relay   Table   Group   Equipment   Tests Malfunctioning Malfunction On   equipment   test assembly Location 1.  Main  generator Separately   excite a.   Output   normal. a.   Excitation a.  Relay  table output  too  low, field  with  dc system group. too  high,  or power   supply. assembly. failure  to flash. b.  Output  low, b.   Generator b.   Generator high,  or assembly. assembly. will  not flash. 2.   Generator   runs   at Place   battle a.   Overload a.   Overload a.   Tactical   relay less  than  130 short   switch indicator relay. box. percent   of   rated in  on  posi- lights   and current   for   10 tion. CB2  remains minutes;   CB2 close. drops  out  and overload   indi- b.   Unit   operates b.   See   table   2-2. b.   See   table   2-2. cater   lights. normally. 3.   Generator   runs   at Place  battle  short  switch  in  on Overvoltage   relay. Tactical   relay normal    voltage, position;   overvoltage   indicator box. set  shuts  down lights  but  the  set  does  not and   overvoltage shut  down. indicator   lights. 4.   Generator   runs   at Place   battle   short   switch   in   on Undervoltage Mode   I   -   Precise rated  voltage, position;   undervoltage   indicator relay. relay   box. CB2  drops  out lights   and   CB2   remains and   undervoltage close. Mode  11-  Special indicator   lights. relay   box. 5.   Generator   runs   at None   required. Short   circuit Tactical   relay rated   load,   CB2 relay. box. drops   out,   and short   circuit   in- dicator   lights. 6.   Generator   runs   at Place  battle  short  switch  in  on Reverse   power Mode  I  -  Precise rated   load,   CB2 position;  reverse  power  indi- relay. relay  box. drops   out,   and cater  lights  and  CB2 reverse   power remains  close. Mode XI - Special indicator   lights. relay   box. 7.   Generator   runs   at Place  battle  short  switch  in  on Permissive Mode  I  -  Precise rated   load,   CB2 position;  unit  operates  nor  - parallel relay   box. drops  out  with  no mally. relay. malfunction    indi- Mode   II-   Special cated. relay  box. B.   Generator   runs   at Place  battle  short  switch  in  on Under frequency Mode  I  -  Precise rated   frequency, position;  underfrequency  indi- relay. relay  box. CB2  drops  out, cater  lights  and  CB2 and   underfreq- remains    close Mode  II  -  Special uency    indicator relay   box. lights. 8-2