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Unformatted text preview: s readily isolated. Figure 5-6 shows the electrical power
usage on the MTSA circuit over a 24 hour period. Electrical data from the CM5000, such as what
80- 60 - 40
20 2:15PM - 6:15PM 10:15PM 2:15AM 6:15AM 10:15AM - - 2:15PM Figure 5-6: Power usage on the MTSA circuit over a typical 24 hour period.
is shown in Figure 5-6, from several time periods was compared with temperature control charts
automatically generated by the MTSA and operating records of the vacuum system during the same
period. In the time period shown in Figure 5-6, one run began at 2:15 PM and ended at about
9:15 AM the next day. Another run began at about 11:30 AM. These times correspond to elevated
power use in the circuit. It was also seen that when the MTSA finished a run and the vacuum
system was off, no power was used in the circuit. Likewise, when the vacuum system was on, and
the MTSA was not running, power use averaged 20 kW (as seen in Figure 5-6 between 9:15 AM and
11:30 AM). Moreover, power usage peaks corresponded to times when the MTSA was using its air
compressors to cool the chamber (as seen in the temperature control cha...
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This document was uploaded on 03/03/2014 for the course ADMIN 1 at Universidad Nacional de Colombia.
- Spring '14