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 1-3
Page 5
(2) Observe generator instruments. The frequency meter should indicate exactly 400 Hz. With the
“METER SELECT” push button switch set to read any line-to-neutral position, (A-N, B-N, or C-
N), the voltmeter should read 115 volts. With the “METER SELECT” push button switch set to
any line-to-line position, (A-B, B-C, or C-A), the voltmeter should read 200 volts.
(3) The final step in delivering power is closing one or both of the load contactors. When the
instruments indicate satisfactory frequency and voltage values, close either load contactor (or
both load contactors) by momentarily pressing the load contactor(s) (
“OUTPUT NO. 1” or
“OUTPUT NO. 2” , if applicable) push button switch. The yellow or orange indicating light of the
push button switch that is pressed will glow continuously, indicating that the load contactor is
closed and power is available at the aircraft.
(4) Early in the power delivery run it is recommended that the operator check output voltage and
current in each of the three phases. Use the “METER SELECT” push button switch to select the
either the line-to-line or line-to-neutral voltage. If the load is changing, it is good operating
practice to observe the instruments until load conditions stabilize.
CAUTION
NEVER press the test/reset push button switch while power is being delivered.
The contactors will open and power to the aircraft will be suddenly interrupted.
(5) A condition of over-voltage, under-voltage, under-frequency, over-frequency, or overload in the
output circuit will automatically open the load contactor and display a fault code to signal the
operator which of the above faults caused the protective monitor system to operate. After the
fault has been corrected, press the “
TEST/RESET ” push-button switch to reset the protective
relay system. Proceed with power delivery by operating the load contactor push button switch.
WARNING
NEVER disconnect the output cable while power is being delivered. Output
contactors must be open prior to removal of the cable from the aircraft.
CAUTION
The generator set must be shut down so that the failed power delivery problems can
be diagnosed. Only licensed technicians should work on this generator set.
e) Failed AC Power Delivery
If the contactor indicating light should go out as soon as the push button switch is released, and a
fault code is displayed indicating that 28.5 VDC interlock signal is not being supplied from the aircraft
to the plug interlock relay, correct the condition and again press the load contactor(s) (
“OUTPUT NO.
1” or “OUTPUT NO. 2” , if applicable) push button switch.
The “ REGULATED/DIAGNOSTIC” switch (located on the VR1) must be set to “ NORMAL ” for power
delivery.
The “ OUTPUT NO. 1” (or “ OUTPUT NO. 2” , if applicable) “EF BY-PASS ON/OFF” switch (located
on the CTL) must be set to “ ON ” position.
See section 2-4 for other No. 1 (or No. 2, if applicable) Load Contactor Operating Circuit for additional
troubleshooting procedures.