Triol AK06, Руководство по устранению неисправностей

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66 AT.654254.050 ver.1.0
Troubleshooting manual
Supply network currents 1 differs from network 2 by more than 20%
VSD is ready
The voltage is supplied to the VSD on all power
circuits and it is the same
The voltages applied to all supply networks are equal
±2%. If the supply
networks are different, it is necessary to eliminate the voltage disbalance by
replacing the transformer, by shifting the phase, or by connecting to a more
powerful network (clean).
Not
Connection wires have the length
±2% and the
same cross section
Make connections with conductors of the same cross section with
approximately equal line length; difference not more than 2% of the total
length.
Power circuit breakers are operational and all
phases are closed
Using current clamps, check that currents are present in all phases. If there is
no current in any of the phases, use a tester to check that there is voltage after
this breaker in this phase.If there is no voltage at the output of the breaker,
replace the faulty breaker.
The shape of currents at the input phases is
symmetrical
Using an oscilloscope and current clamp, check the current waveforms for
each phase. The currents must be symmetrical, a wave of positive and
negative amplitude, the amplitudes must be equal. If for some of the phases
the current shape is not symmetrical or very different in magnitude, then for this
phase it is necessary to check the tightness of all bolted connections and the
tightness of the bus bolts Ud + and Ud-.
Not
Not
Not
Replace the power rectifier unit in which the current
is less or absent in one of the phases.
Connectors P59, P60, P68 of BVN
1 unit and
connector P70, P61 of BVN
2 are connected and
secured with standard latches
Check connectors P59, P60, P68 of BVN
1 unit and connector P70, P61 of
BVN
2 - they must be inserted and fixed with the standard latches. Also,
check that the ribbon cables reach the GB unit, where they are inserted in the
correct places and fixed with latches.
Not