Valsi G80MG1500KVAE, Руководство по обслуживанию

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SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
8
AC OUTPUT MEASURING
CHECKING FUNCTIONAl MEMBERS
MEASURING INSUlATION RESISTANCE
1
1
6
2
2
3
TACHOMETER
Use the contactless type
tachometer
Use a circuit above for measuring AC output.
A hot plate or lamp with a power factor of 1.0 may be used
as a load. Adjust the load and rpm and check that the
voltage range is as specified in the following table at the
rated amperage and rated rpm.
Use a megger tester to check the insulation resistance.
Remove the control panel, and disconnect the connector
of GREEN lead for ground. Connect a megger tester to
one of receptacle output terminals and the ground terminal,
then measure the insulation resistance.
An insulation resistance of 1 megohm or more is normal.
(The original insulation resistance at the time of shipment
from the factory is 10 megohm or more.)
If it is less than 1 megohm, disassemble the generator and
measure the insulation resistance of the stator, rotor and
control panel individually.
STATOR
Measure the insulation
resistance between
each lead wire and the
core.
ROTOR
Measure the insulation
resistance between the
slip ring and the core.
CONTROl PANEl
Measure the insulation
resistance between
the live parts and the
grounded parts.
Any part where the insulation resistance is less than
1MΩ has faulty insulation, and may cause electric
leakage and electric shock. Replace the faulty part.
VOlTMETER
Check the voltmeter
if it is turned on by
applying specific
voltage. Voltmeter
cannot be checked with
circuit tester because its
resistance is too large.
Check that no
disconnection nor short-
circuit occurs with a
tester, and the internal
resistance is around
00k ohms normaly.
Turn on the commercial
power supply input and
check the indication
RECEPTAClES
Using a circuit tester,
check continuity between
the two terminals at the
rear of the receptacles
while the receptacle is
mounted on the control
panel. When continuity
is found between the
output terminals of the
receptacle with a wire
connected across these
terminals, the receptacle
is normal. When
the wire is removed
and no continuity
is found between
these terminals, the
receptacles are also
normal.