101 Basic Series - Module 15 - CEU Education
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1
Most personal computers have a ___________ port to communicate with a modem or a mouse.
2
Harmonics operate at the _______________ frequency of all power quality disturbances.
3
By logging the time various power events occur, clues about the nature and cause of a power problem can be discerned.
4
The double-ended substations system design offers two primary services separated by a TIE breaker.
5
___________ represents the utility's costs of maintaining the generating capacity required to service their entire customer base.
6
Electro-mechanical equipment is especially sensitive to variations in power quality.
7
A power quality disturbance can range from a microsecond to a constant steady state.
8
_________ industry tends to define uptime as "maximizing return on investment".
9
Developing an energy management plan helps to identify energy costs, its effect on the facility's operating budget, and the unit cost of their product.
10
__________ are caused by non-linear loads such as adjustable frequency drives.
11
_________ software can graphically identify usage trends over specific time periods.
12
Noise distortion is unwanted electrical signals on the steady state voltage waveform.
13
Variable-speed drive operation can cause transients and surges in power quality.
14
If the magnitude and impact of downtime costs are not severe, the simple radial system may be a good choice for a facility.
15
Monitoring of a power system can provide data reducing labor costs, reporting errors, and dangerous situations.
16
By tracking and trending system life and performance, maintenance needs can be predicted, scheduled and implemented with a minimum amount of downtime.
17
________is a high-speed, low-cost, flexible network that is not vendor dependent, and allows information to be sent across the plant or around the world.
18
A _______ in voltage can be caused by several large motors or loads turning off at once.
19
Transients or surges are usually sub-cycle increases in voltage.
20
Distribution monitoring can locate problems within a facility and set off alarms when systems are at thresholds.
 
   



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