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Topic: Demand load

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	Demand load (Site not responding. Last check: 2007-10-13)
		Note: The demand load is the sum of the operational load[?] (including any tactical load[?]) and nonoperational demand loads.
		It is determined by applying the proper demand factor to each of the connected loads and a diversity factor[?] to the sum total.
		The sum of the technical demand and nontechnical demand loads of an operating facility.
	www.ebroadcast.com.au /lookup/encyclopedia/de/Demand_load.html (235 words)

	Trailer brake control for towing vehicles having electronic brake control - Patent 5080445
		The trailer brake demand pressure may be adjusted to suit the trailer load as assessed on the towing vehicle by processing the signal from a load sensor 50 and to compensate for the operating gradient which is measured by the EBS system.
		The demand signal D is first compensated for operating gradient in a gradient compensation element 60 which receives an input signal from the towing vehicle system on line 62 representative of the prevailing road gradient.
		The trailer brake demand is calculated using this mass, the driver's braking demand and an assumed or adapted constant representing the trailer brake factor overall.
	www.freepatentsonline.com /5080445.html (4198 words)

	Trailer brake control for towing vehicles having electronic brake control - Patent 5002343
		The compensation for trailer load is evaluated by assessing the total trailer mass from measurements of towing load during acceleration and substracting from this value the portion of the trailer load being supported by the towing vehicle as sensed by vertical force protection means on the towing means.
		This trailer brake demand pressure has to be adjusted to suit the operating conditions encountered by both the towing vehicle and the trailer and it is an object of the present invention to provide a control system on the towing vehicle wherein the control of the trailer braking is optimised.
		The trailer brake demand pressure must be adjusted to suit the trailer load as assessed on the towing vehicle by processing the signal from a load sensor 24 and to compensate for the operating gradient which is measured by the EBS system.
	www.freepatentsonline.com /5002343.html (4842 words)

	ASCO Medium Voltage Synchropower - Operation Description - Load Demand
		Load Demand Operation controls the number of generators running and connected to the emergency bus based on the actual load demand of the facility.
		If load demand is enabled and the system is operating in the emergency or test mode, a stabilization time delay is initiated after all generator sets have been paralleled to the bus and all loads connected.
		Load Demand Operation is reset and all available generators will be started and paralleled.
	www.asco.com /Products/pcs/mvpcs/mvpcsopdescrld.html (523 words)

	Electric Utility Demand-Side Management Glossary of Terms
		It reflects the changes in the demand for electricity resulting from a utility DSM program that is in effect at the same time the utility experiences its annual peak load, as opposed to the installed peak load reduction capability (i.e., Potential Peak Reduction).
		In some instances, the load reduction may be affected by direct action of the system operator (remote tripping) after notice to the consumer in accordance with contractual provisions.
		Load Shape - a method of describing peak load demand and the relationship of power supplied to the time of occurrence.
	www.eia.doe.gov /cneaf/electricity/dsm/dsm_gloss.html (935 words)

	Demand response - Wikipedia, the free encyclopedia
		Demand response is generally used to refer to mechanisms used to encourage consumers to reduce demand, thereby reducing the peak demand for electricity.
		Demand response in most cases is targetted at reducing peak demand to reduce the risk of potential disturbances, avoid additional capital cost requirements for additional plant, and avoid use of more expensive and/or less efficient operating plant.
		Many users may not be able to effectively reduce their demand at various times, or the peak prices may be lower than the level required to induce a change in demand during short time periods (users have low price sensitivity, or elasticity of demand is low).
	en.wikipedia.org /wiki/Demand_response (1462 words)

	Nuclear Electricity ch 2 (Site not responding. Last check: 2007-10-13)
		Load curve of the Victorian electricity system through one winter weekday in June 1996 showing the relative contributions of base, intermediate and peak-load plant duty.
		Because of the large fluctuations in demand over the course of the day, it is normal to have several types of power stations broadly categorised as base-load, intermediate-load and peak-load stations.
		Having the location of electricity demand well removed from sources of cheap coal is the main reason for the steadily increasing use of nuclear power in many countries as compared with coal.
	www.uic.com.au /ne2.htm (7922 words)

	PCS UtiliData - Distribution Efficiency Automation Plan
		Peak Load Reduction is primarily used by utilities to avoid peak loads during high demand periods.
		Peak Load Reduction can be automated at local substations by entering the time periods during which high peaks may occur or during which system peaks are expected.
		Because Peak Load Reduction is primarily a short term measure, ANSI B level voltages may be used as the lower set points.
	www.pcsutilidata.com /cvr_peak.htm (490 words)

	Demand Response Programs
		Demand Response: Electric power generation and distribution systems are strongly affected by supply-side policies (how, when, and where to generate electricity, how to couple generation into the grid, how to transmit and distribute generated electricity) and demand-side policies (pricing schemes, conservation efforts, customer premises automation, and, in extreme circumstances, rolling flouts).
		Demand Response (DR) is a set of activities to reduce or shift electricity use to improve electric grid reliability, manage electricity costs, and ensure that customers receive signals that encourage load reduction during times when the electric grid is near its capacity.
		Demand Side Management programs play an important role in mitigating electrical system emergencies, avoiding flouts and increasing system reliability, reducing dependency on expensive imports, reducing high energy prices, providing relief to the power grid and generation plants, avoiding high investments in generation, transmission and distribution network and leading to environmental protection.
	www.cogeneration.net /demand_response_programs.htm (5323 words)

	MTDC Pubs, Saving Money by Understanding Demand Charges on Your Electric Bill, 0071 2373
		Demand charges are based on the amount of energy consumed in a specified period of time known as a demand interval.
		Demand plots that are more of a rectangle with little or no peak offer few opportunities for shaving peak usage (figure 3) because demand must be reduced longer for the same savings.
		If the cost per kilowatt or kilowatt hour varies with demand or consumption, the unit cost of the load that triggers higher rates can be tremendous, because the new rates can be applied to the portion of the bill over the triggering amount, to the entire bill, or to all bills for the next year.
	www.fs.fed.us /eng/pubs/htmlpubs/htm00712373/index.htm (3274 words)

	Gcom, Inc. \| Demand loading LiS
		The LiS demand load system supports both the old kerneld and the new kmod mechanisms for demand loading kernel modules.
		Demand loading also works when autopushing modules, but you should be aware that when a module is unloaded, it is silently removed from all autopush lists.
		When drivers and modules are added to the LiS configuration files, you can specify the object name that will be used for requesting a demand load of the driver or module.
	www.gcom.com /linux/lis/demand.html (740 words)

	On-Demand Javascript - Ajax Patterns
		The initial page load is now much faster, because only a bare-bones initialisation module is pulled down, with the other modules loaded only when they're needed.
		Often, not all Javascript that's loaded is actually used, leading to a waste of bandwidth.
		The Javascript Response variant of this pattern is a companion to HTML Response and follows a similar server-centric philosophy in which it is the server-side that pushes instructions to the browser.
	ajaxpatterns.org /On-Demand_Javascript (2243 words)

	Neural
		The aim of short term load forecast is to predict future electricity demands based, traditionally, on historical data and predicted weather conditions..
		A peak load model is normally composed of a weather dependent load component on top of a base, weather in-dependant load component.
		Additional measure of the error is defined from the cumulative distribution function as the 90-th percentile of the absolute percentage error, which provides an indication of the behaviour of the tail of the distribution of errors and indicates that only 10% of the errors exceed this value.
	sci.vu.edu.au /~bzhang/demand.htm (1611 words)

	KMAC Inc. - Demand Controller
		K-MAC's Demand Controller was originally designed for the Arizona Public Service utility, and has been adapted for applications with a wide range of businesses such as restaurants, retail outlets, supermarkets, schools, churches, country clubs, and various other businesses.
		The Demand Controller constantly measures the power you are using in your business and will adjust run times, for short duration's, on certain electrical devices when the power load is too high.
		The Demand Controller is housed in a UL approved enclosure that is mounted near your main circuit breaker box.
	www.kmacinc.com /demand_controller.htm (1053 words)

	Demand Control and Energy Efficiency
		The user is able to program a customized load control strategy that works best for the home's architecture, the heating and cooling equipment, the loads under control, the electric use in the household, and most of all, his or her lifestyle.
		When the rate of total power consumption is projected to exceed the demand limit (dL) setting, the controller looks for the lowest priority load in the assigned priority of all the loads that can be shed, and sheds it.
		Since the reduction in demand is shared by several loads, the desired comfort level is maintained throughout the home.
	www.brayden.com /techtip15.html (750 words)

	Demand Load - Electrical - BBS - BobVila.com
		The first thing that you will need to do is to have a load demand calculation done.
		But with an electric stove and hot tub there is a very good chance that you will need a 200 amp service.
		The other 5 are used to feed heavy duty loads, such as stove, WH, AC, etc.
	www.bobvila.com /BBS/Demand_Load-Electrical-1-T5320.html (241 words)

	Automated Demand Response
		Load response is a for of demand side management solution that commercial and industrial customers may choose to employ in response to wholesale electricity prices or other market incentives which can serve several important system-wide functions.
		The two main categories of load response tools are communications devices and mechanisms for modifying a customer’s usage of electricity supplied by the grid during peak hours and conditions.
		On hot days when demand threatens to overwhelm the available capacity on the system, customers willing and able to lower the amount of electricity they draw from the grid offer a resource that can be tapped to delay or avoid the need for more drastic measures, including rolling brown-outs or rolling fl-outs.
	www.cogeneration.net /automated_demand_response.htm (5858 words)

	Commercial Load Calculations
		To determine the service demand load for commercial kitchen equipment that has thermostatic control or intermittent use, apply the demand factors from Table 220.20 to the total connected kitchen equipment load.
		Calculate the receptacle demand load at 180VA for each receptacle strap [220.3(B)(9)] if the number of receptacles is known, or 1VA for each square foot if the number of receptacles is unknown [Table 220.3(A) Note b].
		The neutral load is the maximum unbalanced demand load between the grounded (neutral) conductor and any one ungrounded (hot) conductor — as determined by the calculations in Art.
	bg.ecmweb.com /ar/electric_commercial_load_calculations (1242 words)

	Supply of and Demand for Electricity for New York
		While the load changes every time someone switches a light on or off, the sum of loads due to a large number of consumers varies slowly.
		In addition to the supply needed to meet this demand, some "reserve" generating capacity must be kept ready to operate in case of any unexpected events.
		Load that is fairly constant over the entire day is referred to as the "baseload"-- for residences, it includes such things as refrigerators, water heaters, and lights that are never turned off.
	currentenergy.lbl.gov /ny (1128 words)

	NYSERDA - Peak Load Reduction Programs Short Term Demand Reduction
		Facilities participating only in RTP programs must control load in an automatic fashion to be eligible for funding under LC/S. The Project must include installed measures that enable curtailing or shifting electric use during the entire Summer Peak Demand Reduction Period.
		Demand reductions resulting from the installation of new generation or co-generation equipment are ineligible for this component, but may be eligible under the DG component of this Program.
		Qualifying Direct Load Control Projects are eligible for up to 100 percent of Eligible Project Costs, (this does not pertain to contractors receiving the Controllable Appliance Aggregation Incentive.
	www.nyserda.org /programs/peakload/shorttermreduc.asp (576 words)

	Clearing Up Multi-Family Dwelling Unit Calculations (Site not responding. Last check: 2007-10-13)
		This consists of the general lighting and receptacle loads (3VA per square feet) (Table 220.3A), a minimum of two 1,500VA small appliance loads (3,000VA) [220.16(A) and 210.11(C)(1)], and the laundry circuit loads (1,500VA) [220.16(B) and 210.11(C)(2)] of all individual dwelling units [Table 220.11].
		Now that you know what the demand load is in amperes, you can determine the size of the service disconnecting means and the service conductor sizes.
		These loads would be calculated separately then added on to the demand load for the 25 apartments.
	www.ecmweb.com /mag/electric_clearing_multifamily_dwelling (1229 words)

	Welcome to SKM Systems Analysis, Inc.
		DAPPER is an integrated set of modules for Three-Phase Power System Design and Analysis including rigorous load flow and voltage drop calculations, impact motor starting, traditional fault analysis, demand and design load analysis, feeder, raceway and transformer sizing, and panel, MCC, and switchboard schedule specification.
		Load flow results validated to match with benchmark calculations and IEEE examples.
		Sensitivity studies, future load growth studies and load diversity studies by scaling load factors globally.
	www.skm.com /products_dapper.shtml (814 words)

	Scheduled Load Reduction Program
		You pick the time period, day of the week and minimum load reduction and then meet that reduction level during that period each week throughout the summer in order to receive the incentive.
		You will be expected to curtail your electric load once each week for each period you choose during the summer season, June 1 through September 30.
		Loads cannot be shifted to an on-peak period of another day.
	www.pge.com /biz/demand_response/scheduled_load_reduction (404 words)

	Load Shedding Control Systems, Electrical Demand Control (Site not responding. Last check: 2007-10-13)
		When linked to the LCU the data collected can be presented on the PC monitor in a live display featuring the 1/2hr profile so far in the day with a comparison between the required load profile and actual plus a statement of the status of LCU control relays at the last time of communication.
		Load shedding is provided by 8 relays in the LCU which can be set to operate precisely to match the load to which they are attached and with sequence selection and time delays to suit the user.
		Control will operate based on a comparison between a predicted demand calculated for a centre (this can be the sum of several logger meter inputs or an individual input) and the level set by the user.
	www.newfound-energy.co.uk /load_control.htm (370 words)

	EG Energy Controls Energy Savings Solutions
		The next step would be to identify loads that a user deems could be shed and what they represent in kWs.
		Loads are usually hard wired to the Demand Control unit using 24V DC low voltage control signals.
		Depending on your particular load pattern this may vary, but it can be as little as 15 minutes per month to a maximum of 10 minutes each hour.
	www.egenergy.com /faq.htm (746 words)

	Demand load - Wikipedia, the free encyclopedia
		In telecommunication, the term demand load can have the following meanings:
		In general, the total power required by a facility.
		The demand load is the sum of the operational load (including any tactical load) and nonoperational demand loads.
	en.wikipedia.org /wiki/Demand_load (259 words)

	Re: Drum Level Monitoring (Site not responding. Last check: 2007-10-13)
		In base load operation, the total demand is shared among the base-loaded boilers in accordance with user input.
		The total demand, less that satisfied by the base-loaded boilers, is shared among the modulating boilers in proportion to their capacities.
		Effective load allocation is based on real-time calculations that account for operating safety margins, load fluctuations, shutdown characteristics and boiler capacities.
	www.steamforum.com /_discstm/000011b8.htm (980 words)

	Computer workstation load and demand load computing - Mike Holt's Code Forum
		I am perplexed; comparing the actual, potential and continuous load demand, those computer systems would cause on the building power system.To my understanding /observation, in no single office/commercial environment, the computers are switched OFF until close of the day, once started in the morning.
		It is run from the load back to the main panel, via any intermediate panels, without being connected to any other conductor.
		An average owner may be happy when you show them low installed cost,but he may not be definitely happy, when it later turns out to be either a change order or a premature failures.
	www.mikeholt.com /code_forum/showthread.php?t=52871 (1132 words)

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