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Non-Coincident Peak (NCP) is the individual or actual peak demands of each load in an electrical system oftentimes occurring at different hours of the day. It does not necessarily fall during system peak. (This is what i understood about NCP...I gladly welcome corrections)
Dean Turcotte
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Why should you control maximum demand?
Commercial electrical customers are billed a demand charge as part of their electrical bill. The idea is that if the customer's peak instantaneous KW usage (demand) is high, the utility has to provide large enough generating and transmission capacity, which costs money. Controlling maximum demand lowers the electric bill, saving the customer money. The act of doing so is called peak shaving, and is usually accomplished by turning off non critical loads or providing onsite co-generation to reduce utility consumption to prevent a new peak from occuring.
What system would be used in a domestic dwelling in periods of peak demand?
No system, Peak demand as defined by the Utility Co`s is usually 7am-2pm. During those times everyone is at work or school in larger buildings with larger systems creating this period of peak demand, essentially staying comfortable on someone else`s dime, and the programmable thermostat in the home would be in energy setback or unoccuppied mode. Or in some areas the Utility Co does this for the Homeowner via their own Energy Setback Systems or rolling Brown Outs if that is the answer your Teacher is looking for.
What is off-peak circuit?
If you're using it in reference to electrical service it generally means non-business hours. Off-peak electric service for instance is electric service that is at a much lower rate, however the electric company shuts off the service for a certain period of time each day, usually during the highest demand.
Is kVARh the same as peak demand?
No. For more information please see the answer to the Related Question shown below.
When It is required to calculate average voltage and when RMS voltage?
It is usually required in electrical examinations to make calculations. Simple answer to a complicated calculation. Remember, take peak to peak voltage and multiply by .707, the result being average voltage. This is the voltage that electrical test meters read.
What is 'non-coincident peak demand' in an electrical system?
Non-Coincident Peak (NCP) is the individual or actual peak demands of each load in an electrical system oftentimes occurring at different hours of the day. It does not necessarily fall during system peak. (This is what i understood about NCP...I gladly welcome corrections)
What is peak shaving?
Peak shaving is a process from the electricity business: You shift demand from "peak times" (eg. noon) to times with lower demand (e.g. night) and thus "shave" the peak. You can do that e.g. with devices that do not need to run immediately like washing machines etc...
What is the difference between Peak and off peak?
peak is when the demand of electric power is very high, and off peak is when the demand is low
What is a demand response system I always hear about businesses needing to save energy by having them but what does demand response do...?
From wikipedia: Demand response is generally used to refer to mechanisms used to encourage consumers to reduce demand, thereby reducing the peak demand for electricity. Since electrical systems are generally sized to correspond to peak demand (plus margin for error and unforeseen events), lowering peak demand reduces overall plant and capital cost requirements. Depending on the configuration of generation capacity, however, demand response may also be used to increase demand (load) at times of high production and low demand. Some systems may thereby encourage energy storage to arbitrage between periods of low and high demand (or low and high prices). As the proportion of intermittent power sources such as wind power in a system grows, demand response may become increasingly important to effective management of the electric grid.
In area where water supply is poor during periods of peak demand what type of system would usually be specified for the domestic dwelling?
In area where water supply is poor during periods of peak demand what type of system would usually be specified for the domestic dwelling?
Why should you control maximum demand?
Commercial electrical customers are billed a demand charge as part of their electrical bill. The idea is that if the customer's peak instantaneous KW usage (demand) is high, the utility has to provide large enough generating and transmission capacity, which costs money. Controlling maximum demand lowers the electric bill, saving the customer money. The act of doing so is called peak shaving, and is usually accomplished by turning off non critical loads or providing onsite co-generation to reduce utility consumption to prevent a new peak from occuring.
Factors affecting cross elasticity of demand?
1.degree of necessity 2.peak and off-peak demand
In area where water supply is poor during periods of peak demand what type of system would usually be specified for a domestic dwelling?
secondary cold water system
How does off-peak pricing influence demand for services?
better prices for off peak purchases takes some of the demand load off the peak times and spreads it out so resources are not overwhelmed.
What system would be used in a domestic dwelling in periods of peak demand?
No system, Peak demand as defined by the Utility Co`s is usually 7am-2pm. During those times everyone is at work or school in larger buildings with larger systems creating this period of peak demand, essentially staying comfortable on someone else`s dime, and the programmable thermostat in the home would be in energy setback or unoccuppied mode. Or in some areas the Utility Co does this for the Homeowner via their own Energy Setback Systems or rolling Brown Outs if that is the answer your Teacher is looking for.
At the zenith of his career the rock star was in world-wide demand?
peak A+
What is harmonics in electrical system?
in a 60hz system anything that is not a 60Hz sine wave is a harmonic this is caused by non linear devices with 120 volts if a device draws more current at 170V than at 0 volts it will cause current at peak and -peak for a 120hz harmonic in the current If the wiring is not 0 ohms you get funny ringing through the whole system
