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One Fail LED lights up in one
of the four HFUT-100's mounted on the rectifier rack. |
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Power off the HFUT-100 and consult with the customer service representative. |
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400A is the maximum current of
combined racks when the electric power is restored after a failure,
but approximately 350A is indicated on the rack meter. What kind of
problem is it? |
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Because the rated current 100A is not supplied due to an error
of switching device, the electric power service representative should check whether
100A is indicated on each HFUT-100. After this, consult with
the customer service representative. |
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The load is unbalanced between
rectifier racks. What should I do when four HFCU-100s do not work?
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Load sharing in the range of 10% is normal. Otherwise,
it is unbalanced. Do not adjust the finely tuned variable resistor
of the HFCU-400 control module. Consult the customer service representative. |
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Four HFCU-100s of the rectifier rack
do not work. What should I do? |
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If they do not work even though you press the Reset switch,
turn off the alarm toggle switch; open the air vent cover mounted on the top;
and check the LED state of the HTPS2 board. If the LED lights go off,
power off the rack in the HFCU-400 and the ACDR and consult with the
customer service representative.
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DCCR and ACDR meters do not indicate
constant values, or they vary widely. And, the AC input display is
more than 100% of actual voltage. What should I do in this case? |
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The meter has an error. Consult with the customer service representative. If the
AC input is abnormal, consult with KEPCO. |
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The HFUT-100 is extremely noisy. |
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Power off the HFUT-100 and consult with the customer service representative. |
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