TM5-6115-593-34NAVFAC P-8-631-34TO-35C2-3-463-2Figure 5-22. Relay Test Setup(1)Test the relay by connecting as shown infigure 5-21.(a)Close S1 and adjust variac for 110V AC asindicated by A.C. voltmeter.(b)With ohmmeter connected betweenterminals 5 and 7, reduce AC voltage.Relay should trip at 108V AC. At this point,ohmmeter will no longer show continuity.(c)With ohmmeter connected betweenterminals 5 and 6 adjust AC voltage sourceto read 130V AC on voltmeter.(d)Increase voltage to 133V AC, relay shouldtrip at 132V AC. Ohmmeter will no longershow continuity.(2)REPLACEMENT. Remove relay (7, figure 5-19) by disconnecting and tagging wires andremoving four screws (1).d.RELAYS, BCR, CR AND BTR (2, 6, and 4,figure 5-19).(1)Test any of the three relays by connecting asshown in figure 5-22.(a)Close switch S1.(b)Using the ohmmeter, verify that all normallyopen contacts have closed (zero resistanceon meter) and all normally closed contactshave opened (infinite resistance on meter).(2)REPLACEMENT. Remove relays (2, 6 or 4,figure 5-19) by disconnecting and taggingwires and removing two screws (1).e.SRM, SYNCHRONIZING RELAY (3, figure 5-19)(1)Test the SRM relay by connecting as shown infigure 5-23, synchronizing test.(a)With 115V AC supplied, contacts 9 and 10shall close causing ohmmeter to read zeroohms resistance.5-27
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