Generator set sizing software

The power solutions center is an intuitive and valuable tool for those who need quick answers on power systems. The software will ask for required data to be keyed in for any particular. Although the generatorsizing software is a very handy tool, the design engineer must evaluate the load and performance characteristics before selecting one generator set over another. Sizing a generator how to determine what size you need. Remember, an onsite enginegenerator set is a limited source of power, both in horsepower available from the engine, and kva available from the generator. In this blog post we talk you through some generator sizing basics.

May 22, 2018 kohler makes sizing and specifying industrial generators easy. Solar irradiation databases and the resulting pv generation profiles. This spreadsheet intend to calculate size of needed diesel generator according to the following input parameters. It is to be used for continuous duty 24 hours a day and through out year at a remote location since main power from utility company is not available. Kw consumed by a motor absorbed power x efficiency x power factor. Undersize a generator and you wont be able to power your equipment. But using a generator too small for the load can result in unacceptable voltage dropsand overheating. A large regional water treatment plant in westcentral michigan, not far from the shores of lake michigan, wanted to ensure that water would continue flowing to more than 200,000 residents even if the electric utility failed, so it installed a standby power system from cummins power generation to prevent service interruptions. Information on how to determine the size of electric diesel power generator you need. A motor drives the generator which, in turn, supplies power to the motor to be started.

Sizing is based on site conditions and the type of appliances, equipment, and devices that will be powered by the generator set. For systems with initial loads, the generator set size needs to be augmented by the initial kwkva in addition to the largest motor sizing. Home backup generator sizing calculator find the right home backup generator for you. The sizing software can account for total harmonic current distortion of an entered load and size the generator set accordingly. Check out the cat electric power social media page for the latest news, preventive maintenance tips, and product and show announcements. In addition to state of the art generator sizing and analysis, it includes spec sheets, installation drawings, emission information and exhaust sizer. Not only does it involve the risks of damaging your new asset the generator, but it can also damage other assets connected to it, create hazardous situations, and even limit overall productivity of the unit andor the business relying on it. The two most popular pv system sizing software tools were compared. Where practicable, arranging a starting sequence where the largest motor starts and comes to full speed before other loads are added to the generator, will result in most economical size of a generator.

Power solutions center spec and sizing software kohler power. Mar 30, 2020 download electric power specsizer for free. Running a generatorset under light load can lead to engine damage, reducing. The most powerful electrical and mechanical design and sizing tool on the market, generac industrial powers power design pro is a one stop solution center for the consulting engineer. Electric power specsizer free download windows version. The primary aspects of a properly designed engine room ventilation system are cooling air and combustion air. Knowing manual calculation methods helps the engineer understand how each factor contributes to a correctlysized genset. Does a upstype load require a greater generator capacity than a similar motor load with the same kva requirement. Several features set specsizer apart as a revolutionary tool in generator set sizing, including its ability to evaluate load types such as air conditioners, elevators, ultraviolet lights, single. Cummins standby power system keeps taps flowing and lowers costs. In general, sequenced startup allows the smallest generator set in relation to the steadystate load. Ultimate service associates key factors in the sizing of.

Critical backup power requires detailed sizing with numerous electrical considerations based on your specific requirements, use this article in determining the specifications for your specific application. Specsizer is a free, pc software tool that allows users to select the most appropriately sized diesel generator set for virtually any electric power project. Mar 14, 2016 although the generator sizing software is a very handy tool, the design engineer must evaluate the load and performance characteristics before selecting one generator set over another. There are many variables to consider during the selection process location, footprint, types of load, distribution just to name a few.

Size an industrial generator for your application ck power. In addition, it should be noted that generator rating results are manufacturerspecific and may need to be derated for ambient temperature, altitude, and harmonics. The sizing of the generator can be an issue since drives are nonlinear loads and the resulting harmonic content can lead to problems for the generators voltage regulation circuits. Using accurate generator set sizing software can ensure your genset can handle the task. Each major generator manufacturer has created generatorsizing software to help with this complex task, but due to manufacturers differing approaches to motor starting, this software can yield quite different resultssometimes specifying a larger and more expensive generator or too small a generator than is necessary for reliable operation. Nov 26, 20 a generator set that is is too large or lightly loaded can lead to wet stacking which causes the excess fuel to pass through the engines exhaust system. Unfortunately, generator under sizing is one of the most common mistakes committed by buyers.

The power design software models load characteristics to ensure generator load compatibility. Kohler makes sizing and specifying industrial generators easy. Load listing, calculations and generator sizing spreadsheet. Running a generator set under light load can lead to engine damage, reducing reliability. When sizing a generator set, one must consider the various loads in the power system and their effect on transient response. I am in the process of sizing diesel generator set. This quick and easy home standby sizing calculator will provide you with 3 possible generators to.

The coil current rating of the generator set is 334 amperes. Generator set sizing and specification wareham, boston, ma. Nec 6957 requires that voltage dip no more than 15% of rated controller voltage at the fire. In addition to state of the art generator sizing and analysis, it includes spec sheets, installation drawings, emission information and. The engine supplies power, rated in kw or hp and the alternator provides voltage and current and is usually rated in kva, volts and power factor. Polymer base eliminates the need for a concrete mounting pad, reducing installation time and cost. Taking the time to analyze the equipment used in your operations will lead to an efficient and reliable generator that will provide critical power. Call us 18442423494 to speak with a customer service representative. Generator set motor starting macallister power systems. Transient performance and motor load capabilities 1 pdh date and time. This system runs continuously and current surge, caused by the starting of the equipment motor, is isolated from the remainder of the load. Generac power systems what size generator do i need for.

Most software simplifies the sizing process by collecting commonly needed data and minimizing calculations that you need to pick the right generator set size for the job at hand. Engine room ventilation this guide addresses engine room ventilation considerations that apply to the successful installation, operation and maintenance of cat engines, generator sets, compressor units, and other packaged units. Generators sizing calculations part seven electrical. This session will explore the process of generator set selection. Furthermore, other loads connected to the generator output may be more sensitive to voltage and frequency dips than the motor or motor starter, which can cause problems. Dont miss your opportunity to download generacs recently updated genset sizing software.

We created this generator size calculator to help you consider your needs and to help you think about what you would like to power during an outage at your home. Electric power specsizer software from cat electric power provides accurate and timely technical data, robust load models, and optimized algorithms to assist in specifying a properly sized generator set to best meet your power needs. Mar 21, 2014 several features set specsizer apart as a revolutionary tool in generator set sizing, including its ability to evaluate load types such as air conditioners, elevators, ultraviolet lights, single. Due to their challenging starting requirements, motor loads may drastically impact generator sizing and selection inadvertently disrupting the balance between transient performance and avoiding oversizing. Generators sizing calculations part seven electrical knowhow. The influence of the solar radiation database and the. There are two major components to a genset, the engine and the alternator. A generator set that is is too large or lightly loaded can lead to wet stacking which causes the excess fuel to pass through the engines exhaust system. The main concerns for sizing a generator are related to the generators ability to tolerate. Generator set is maybe the most expensive part you can find in a substation. How not to select the wrong generator set genset for. Light loading can lead to wet stacking see information sheet on wet stacking and. Industrial generator sizing takes careful planning and a complete audit of your application to determine best value options.

All major generator set manufacturers provide sizing software with builtin formulas for calculating the load on a generator. Many factors influence generator set sizing, making it time consuming to manually calculate required generator capacity. This calculator is commonly used for load listing, load calculations and generator size selection. When starting motors or transformers, large voltage and frequency dips can also occur if the generator set is not sized properly. The most powerful electrical and mechanical design and sizing tool on the market, generac industrial powers power design pro generating software is a onestop solution center for the consulting engineer. As such, it must be large enough to start as well as run connected motor loads. How to size a generator that is used to power a variable speed drive. Parameters that determine the required generator set size include minimum generator set load. Cat electric power specsizer generator set sizing software. The most important thing to consider when sizing a generator is the high inrush currents associated with starting electric motors and transformers, which are typically six times the full load current. When cycling motor loads exist, it will still be necessary to size the generator set to start the largestcycling motor last, with all other loads connected. Many factors influence generator set sizing, making. A find the amount of singlephase power which can be safely drawn from a threephase 120240 volt fourwire generator set rated to deliver 100 kw at a 0. Remember, an onsite engine generator set is a limited source of power, both in horsepower available from the engine, and kva available from the generator.

Users can size for their power needs with generator sets as small as 14kw or as large as 4000kw, and the specsizer tool can parallel up to 25 generator sets. Motor starting is affected by motor and generator design, and load on. One last step in the sizing equation has to do with future needs. The following criteria should be considered when sizing a generator set system. Neurio, founded in 2005 and headquartered in vancouver, british columbia, is a leading energy data company focused.

Many genset manufacturers have software programs that enable the correct choice of set for any given load combination. It features an optimized 20step wizard that automatically calculates the least number of steps for building a load scenario. This information sheet details the factors that influence the sizing of a gnerator set and key load criteria a system designer should. The software will ask for required data to be keyed in for any particular application. Caterpillar electric power is excited to introduce you to our latest generator set sizing software, cat electric power specsizer. This software features spec sheets, drawings, emission information, an exhaust sizer, and a pad layout tool.

Taking the time to analyze the equipment used in your operations will lead to an efficient and reliable generator that will provide critical power in times of need. Here are a few points to remember when sizing your generator set. Diesel generator sizing calculation electric motors. Designing generator systems consultingspecifying engineer. Therefore, many factors must be considered when determining the proper size or electrical rating of an electrical power generator set.