APC Exam DU0-001 Topic 1 Question 71 Discussion

Actual exam question for APC's DU0-001 exam

Question #: 71
Topic #: 1

What is the primary difference between double conversion and delta

conversion UPS systems?

ADouble conversion UPSs require a 1.3X generator oversizing. Delta
conversion UPSs require a 3X generator oversizing.

BDouble conversion UPSs are practical in size ranges from 0 - 20 kW.
Delta conversion UPSs are practical in size ranges of 20 kW to 1 MW.

CIn a double conversion UPS, 100% of the power is converted from AC to
DC and then again from DC to AC. In a delta conversion UPS, only the
difference between input and output power is converted.

DIn a double conversion UPS, the transformer has a special ferro-resonant
capability, which provides limited voltage regulation and output waveform
shaping. In a delta conversion UPS, a standard transformer is used.
,

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Suggested Answer: A

by Golda at Jul 03, 2023, 08:12 PM

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