Figure 15-10. Under/Over Voltage Relay, Test Setup

Figure 15-11. Underfrequency and Overfrequency-Relay, Test Setup

TM-5-6115-593-34 Generator Set Diesel Engine Driven Tactical Skid Mtd. 600 Kw 3 Phase 4 Wire 120/208 and 240/416 Volts Manual
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TM5-6115-593-34 NAVFAC P-8-631-34 TO-35C2-3-463-2 Figure 15-10. Under/Over Voltage Relay, Test Setup Under/overvoltage relay (11, figure 15-9) is removed as follows: (1) Disconnect and tag wires to under/overvoltage device terminal board. (2) Remove four screws and washers. Remove device. (3) Replace under/overvoltage device by attaching to panel with four screws and washers. Connect wires and remove tags. 15-17. UNDERFREQUENCY RELAY. (10, figure 15-9). The device is adjustable within the range specified in the tabulated data in Chapter 1 of the Operator and Organizational Maintenance manual. Test numbers given in the procedures below are nominal. Trip setting is adjusted with the adjustment screw on the device. Test and replace as follows: a. Test. (1) Connect underfrequency relay as shown in figure 15-11. Switch S1 closed. (2) Adjust variable frequency generator for 50 Hz output. (3) With ohmmeter connected between terminals 5 and 7, adjust frequency generator to 48.5 Hz. Relay should trip as frequency is decreased. Ohmmeter will no longer show continuity. (4) Open switch S1. Adjust frequency generator for 60 Hz output. 15-15

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