TEST OF REGULATOR EXCITER ASSEMBLIES TESTING AND ADJUSTING TEST OF REGULATOR EXCITER ASSEMBLIES (Regulator Removed From Generator) FABRICATED TOOLING - FT1488 The special fabricated tooling  ( FT1488) provides a way to test the power generator regulator - exciter assemblies.        It    allows    testing    after    repairs    without connecting to the generator set. TEST PROCEDURE 1. Preparation A. Connect   regulator-exciter   to   the   FT   tester   as directed by connection chart. CONNECTION CHART Tester Terminal 1 2 3 4 5 6 7 8 SR-4 Terminal 5 6 24 26 22 20 F1 F2 B. Set voltage, droop and gain controls full CCW. C. Set tester variac control CCW. D. Turn  power switch on. 2. Relay Test A. Turn  the  variac  slowly  CW.    at  90  ±  20  volts, there should be slight drop in the field voltage as the relay energizes. 3. Level control test A. Set voltage level control to mid-range position. B. Increase    the    variac    position,    raise    general. voltage,  until  the  field  voltage  starts  to  decrease and  the  load  lamp  starts  to  dim.    This  condition should  occur  between  200  and  260  volts  on  the generator voltmeter. C. Turn   the   voltage   level   control   CW.      the   field voltage    should    increase    and    the    load    lamp should brighten. D. Turn  the  voltage  level  control  CCW.    the  field voltage   should   decrease   and   the   load   lamp should dim. 4. Gain control test A. Set variac, generator voltmeter.  to '240 volts. B. Adjust level control till load lamp is dim. C. Turn   gain   control   CW.      load   lamp   brightness should increase, field voltage should Increase. 5. Droop control test A. Set gain control CCW. B. Set variac, generator voltmeter, to 240. C. Adjust level control till load lamp is dim. D. Turn droop control CW, load lamp should go out, field voltage should decrease. NOTE:   If   the   load   lamp   gets   brighter   and   field voltage  increases,  reverse  the  secondary  leads  of transformer T3.  This should only occur the first time the tester is used. 75