Figure 15-2. Synchroscope, Test Setup

Figure 15-3. Remote Control Module, Plate Assembly, Exploded View

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 15-2. Synchroscope, Test Setup the ‘incoming' must then be inched up or down until the pointer takes a steady position at 12 o'clock. c. Replacement. The synchroscope is mounted on the remote control module control panel. Disconnect and tag wires and remove attaching hardware to remove the synchroscope from the control panel. 15-8. RELAYS. Test and replace undervoltage relay K115 and underfrequency relay K116 as follows: a. Test. (1) Undervoltage relay K115 (2, figure 15-3). (a) Connect relay as shown in test setup figure 15-4. (b) Connect a variable 0 to 160V AC source and variable frequency (50 to 60 Hz) source to terminals 1 and 2 with switch S1 in series. (c) Connect lamp DS1 and 24V DC power supply in series with switch S2 to terminals 3 and 4, also with terminals 7 and 8 (DS2). (d) Adjust AC power supply to 120 volts, 60 Hz. With Sl and S2 closed, lamp DS1 should extinguish and DS2 should light. (e) Reduce voltage slowly to 104 volts and hold for 2 minutes. Lamp DS1 and DS2 shall maintain states. (f) Reduce voltage to 99 volts. DS1 and DS2 shall transfer states within 4 to 8 seconds. (g) Increase voltage slowly to 113 volts. Lamps DS1 and DS 2 shall transfer states. (h) Reduce voltage to 48 volts. Transfer of states of DS1 and DS2 shall be instantaneous (i) Reduce frequency to 50 HZ and repeat the procedures in steps 15-3

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