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25 Cards in this Set
- Front
- Back
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ITE (info tech equipment) is typically sized for ----- of their UPS full load capacity.
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80%
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If you are installing a direct hydrogen fed fuel cell system indoors, the max standard cubic feet is limited to -----
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3500 SCF
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Which method is usually used to control harmonics?
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Over sized neutral conductors
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Fuel cells designed for commercial primary backup generators are -----
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25 to 250 kW
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High temperature fuel cells deliver up to ----- electrical efficiency
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45%
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The output load can be few by % UPS ----
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parallel set of UPS modules
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Power systems that supply ITE centers are designed so that power is -----
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not interrupted
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The term Emergency Power Off (EPO) refers to a switch in the ITR -----
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service disconnect (D)
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Which following fuel cell systems operate avove 1800 F?
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Solid Oxide type
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Which Company is the world leader in design, manufacturing .... of large scale fuel systems since 2001 and has delivered more fuel cell MW that any other in the world?
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Fuel Cell Energy (FCE)
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Fuel cells operate by chemically bonding -----
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Hydrogen and Oxygen
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A Standby UPS in normal mode, acts as a ----- for utility power.
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filter (it filters irregularities in input)
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----- can be a serious consequence of failure of an ITE.
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All the above
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A UPS is used as a source of what type of power for critical loads?
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Constant power
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The greatest % of fuel cell companies are manufacturing for the following -----
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Light Commercial/ Residential/ Backup
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What is the size of the largest fuel cell system currently installed in North America?
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It is 2 mW installed by FCE
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What type of UPS Conversion is used on a personal computer?
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Standby
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If you are installing a direct hydrogen fed fuel cell system outdoors that standard cubic feet is -----
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less than 3500 SCF
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Cell phones are usually banned from ITE centers because -----
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they can interfere with data transfer
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Large UPS sites aer usually rated at -----
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150 kVA and above
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Fuel cells use an ----- to convert energy
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electrical chemical process
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Tier 1 ITE centers are the most -----
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common
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If one UPS module fails, -----
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the other UPS module takes over
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In what section of a typical UPS system are you likely to find a storage battery or set of batteries mounted?
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fuel cell stack
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A disadvantage of ------ design is that both UPS design, module, rating must be of the same manufacturer.
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parallel redundant system
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