Configuring your Generator Set and Datasheet

Polar provides generator and power systems that are configured to meet our customers’ needs by matching our various sub systems / components against specific site requirements. This is the reason we avoid creating data sheets on complete generators, we are not limited in our options. To create a complete and detailed “data sheet” most of our customer review each of our options and then will assemble the individual component / sub assembly data sheets into a binder. Here is a guide

1. Selection of the alternator type, either 8000 or 6200. Our 8000 series is the most popular for telecommunications and battery charging applications. The 6200 is most popular for specialized military applications requiring ultra fast voltage regulation and fixed engine speed operations. Details are listed in the individual brochures.

2. Selection of the generators power range (kW or Amps) based on meeting either the daily or weekly energy demand of the load (kWh or Ah) factored against the generator run time.

3. Selection of the alternator model and engine size are based on optimizing the generator run time in powering the load and recharging the battery and this is factored against the engine maintenance. The faster the generator speed the greater the power obtained from either the engine or the alternator; and the greater the power the shorter the run time (but this requires a larger battery bank). Shorter the generator run time the lower the engine maintenance, but larger battery banks will increase the operating costs and battery maintenance. Slower engine speeds (1400 to 2000 RPM) reduce engine maintenance and generator noise, but higher speeds (2200 to 3000 RPM) reduce generator size and cost. Best fuel efficiencies at around 2200 – 2400 RPM for small load variations, and around 1600 – 1800 for larger load variations.

4. Additional factors in selection of the fuel: The Kubota and Daihatsu LPG/Propane and natural gas engines that Polar assembles will provide between 30,000 to 40,000 hours of service. Our heavy duty diesel engines that we configure will provide 10,000 to 20,000 hours of service. Diesel poses fewer problems when operating at temperatures lower than -40 C than propane. Diesel is more easily transported but more prone to theft. For backup generators diesel can spoil during storage whereas as LPG/propane or natural gas can be stored for hundreds of years (container allowing). For a given volume of fuel (gallons of liters) diesel can store more energy. A Kubota LPG/Propane/natural gas engine will last 3 times longer than is diesel fuel model. Diesel smells more than the other fuels and permitting can be more difficult in certain areas.

5. Indoor or outdoor installation. This will determine enclosure type.

6. Accessories for communications, engine oil maintenance intervals, noise abatement, electrical ripple, fuel packaging.

By visiting our various pages under Products you can download detail on the subassemblies and components. For assistance on Applications you can visit pages under this section. For Polar assistance in selecting configurations and costing please fill out an application form.

If you would like help selecting a suitable package for your application please fill out our online “Generator Worksheet” and we will review your requirements and suggest a suitable Genset package.