Hobart 60CU24, Руководство по эксплуатации и техническому обслуживанию с иллюстрированным списком запасных частей

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OM-2098C / Operation and Maintenance Manual
60CU24 / Series 500060C / 400 Hz. Generator Set
April 01, 2005 Chapter 2-3
Page 8
(15) Check voltage regulator, at intervals, from no load to full load. Observe and note voltage at
various loads. Steady-state voltages should vary no more than +/- 1% from normal output
voltage.
(16) Operate the No. 1 output circuit of the unit no less than 10 minutes under full load. The overload
protection MUST NOT trip.
(17) Operate the No. 1 output circuit of the unit at 125% load (325 amperes) for 5 minutes immediately
following the full load run. The overload device MUST trip within 5 minutes, and the fault code
display should read “
70.18 ” indicating an overload condition in “ OUTPUT NO 1 ” (Reference fault
chart in Section 2-4).
(18) Reset the fault by pressing “ TEST/RESET ” push button (Figure 2).
d) Testing the No. 2 output circuit (if applicable)
(1) Repeat steps (1) through (18) in the previous section “ Testing the No. 1 Output Circuit ” for
testing the No. 2 output circuit.
e) Testing and checking meters, switches, protective monitoring circuits, and fault code display
(1) Check accuracy of AC voltmeter
a Open door of control box and connect a master voltmeter of known accuracy to terminals of
the AC voltmeter (Figure 1).
b Compare the unit’s voltmeter reading with master meter. Error must not exceed 2% of full
scale.
(2) Check accuracy of AC ammeter
a Connect a master ammeter of known accuracy to the AC ammeter (Figure 1).
b Compare the unit’s ammeter reading with master meter under various loads. Error must not
exceed 4% of full scale.
(3) Check operation of the “ METER SELECT ” switch (Figure 2).
a In any LINE-TO-NEUTRAL position, the voltmeter reading should be 115 volts when the LED
under the voltmeter indicates one of the 3 phase being check (Figure 5).
b In any LINE-TO-LINE position, voltmeter reading should be 200 volts when the LED under
the voltmeter indicates two of the phases being checked (Figure 5).
(4) Check accuracy of frequency meter
a Connect a master frequency meter of known accuracy to the terminals of the frequency meter
(Figure 1).
b Compare meter readings. Error must not exceed 1% of full scale.