Data Center Generators

Data Center Generators

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Generators are a key to data center reliability. Supplementing a battery-based uninterruptible power supply (UPS) with an emergency generator should be considered by all data center operators. The question has become increasing important as super storms such as Hurricane Sandy in the Northeast United States knocked out utility power stations and caused many downed power lines, resulting in days and weeks of utility power loss.
data-center-generator-delivery
Data Center Generator Delivery

Beyond disaster protection, the role of a backup generator to provide power is important when utility providers consider summer rolling blackouts and brownouts and data center operators see reduced utility service reliability. In a rolling blackout, power to industrial facilities is often shut down first. New data center managers should check the utilities contract to see if a data center is subject to such utility disconnects.

Studies show generators played a role in between 45 and 65 percent of outages in data centers with an N+1 configuration (with one spare backup generator). According to Steve Fairfax, President of MTechnology, “Generators are the most critical systems in the data center.” Mr. Fairfax was the keynote speaker at the 2011 7×24 Exchange Fall Conference in Phoenix, Arizona.

What Should You Consider Before Generator Deployment?

  • MTU-Onsite-Energy-Data-Center-Gas-Generators
    MTU Onsite Energy Gas Generator

    Generator Classification / Type. A data center design engineer and the client should determine if the generator will be classified as an Optional Standby power source for the data center, a Code Required Standby power source for the data center, or an Emergency back-up generator that also provides standby power to the data center.

  • Generator Size. When sizing a generator it is critical to consider the total current IT power load as well as expected growth of that IT load. Consideration must also be made for facility supporting infrastructure (i.e. UPS load) requirements. The generator should be sized by an engineer, and specialized sizing software should be utilized.
  • Fuel Type. The most common types of generators are diesel and gas. There are pros and cons to both as diesel fuel deliveries can become an issue during a natural disaster and gas line feeds can be impacted by natural disasters. Making the right choice for your data center generator depends on several factors. The fuel type needs to be determined based upon local environmental issues, (i.e. Long Island primarily uses natural gas to protect the water aquifer under the island), availability, and the required size of the standby/emergency generator.
  • Deployment Location. Where will the generator be installed? Is it an interior installation or an exterior installation? An exterior installation requires the addition of an enclosure. The enclosure may be just a weather-proof type, or local building codes may require a sound attenuated enclosure. An interior installation will usually require some form of vibration isolation and sound attenuation between the generator and the building structure.
  • Cummins-Lean-Burn-Industrial-Gas-Generators
    Cummins Lean-Burn Gas Generator

    Exhaust and Emissions Requirements. Today, most generator installations must meet the new Tier 4 exhaust emissions standards. This may depend upon the location of the installation (i.e. city, suburban, or out in the country).

  • Required Run-time. The run-time for the generator system needs to be determined so the fuel source can be sized (i.e. the volume of diesel or the natural gas delivery capacity to satisfy run time requirements).

What Should You Consider During Generator Deployment?

  • Commissioning The commissioning of the generator system is basically the load testing of the installation plus the documentation trail for the selection of the equipment, the shop drawing approval process, the shipping documentation, receiving and rigging the equipment into place. This process also should include the construction documents for the installation project.
  • Generac-industrial-gas-generators
    Generac Generator

    Load Testing Typically, a generator system is required to run at full load for at least four (4) hours. It will also be required to demonstrate that it can handle step load changes from 25% of its rated kilowatt capacity to 100% of its rated kilowatt capacity. If the load test can be performed with a non-linear load bank that has a power factor that matches the specification of the generator(s) that is the best way to load test. Typically, a non-linear load bank with a power factor between 75% and 85% is utilized.

  • Servicing The generator(s) should be serviced after the load test and commissioning is completed, prior to release for use.

What Should You Consider After Generator Deployment?

  • Caterpillar Industrial Diesel GeneratorsService Agreement. The generator owner should have a service agreement with the local generator manufacturer’s representative.
  • Preventative Maintenance. Preventative Maintenance should be performed at least twice a year. Most generator owners who envision their generator installation as being critical to their business execute a quarterly maintenance program.
  • Monitoring. A building monitoring system should be employed to provide immediate alerts if the generator and ATS systems suffer a failure, or become active because the normal power source has failed. The normal power source is typically from the electric utility company, but it could be an internal feeder breaker inside the facility that has opened and caused an ATS to start the generator(s) in an effort to provide standby power.
  • Regular Testing. The generator should be tested weekly for proper starting, and it should be load tested monthly or quarterly to determine that it will carry the critical load plus the required standby load and any emergency loads that it is intended to support.
  • bloom-energy-server
    The Bloom Box by Bloom Energy

    Maintenance. The generator manufacturer or third party maintenance organization will notify the generator owner when important maintenance milestones are reached such as minor rebuilds and major overhauls. The run hours generally determine when these milestones are reached, but other factors related to the operational characteristics of the generator(s) also apply to determining what needs to be done and when it needs to be done.

 PTS Data Center Solutions provides generator sets for power ratings from 150 kW to 2 MW. We can develop the necessary calculations to properly size your requirement and help you with generator selection, procurement, site preparation, rigging, commissioning, and regular maintenance of your generator.

To learn more about PTS recommended data center generators, contact us or visit (in alphabetical order):

To learn more about PTS Data Center Solutions available to support your Data Center Electrical Equipment & Systems needs, contact us or visit:

MTU Onsite Energy Gas Generators

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MTU-Onsite-Energy-Data-Center-Gas-GeneratorsBacked by decades of experience and complete system expertise, MTU Onsite Energy provides reliable gas generator sets for a wide variety of applications. Industries and locations may vary, but the need for constant power never changes. Whether it’s emergency, continuous or prime power; power generation or combined heat and power production (CHP), MTU Onsite Energy gas generator sets are effective, dependable and configured to meet your exact requirement.

MTU Onsite Energy Gas Generator Set Features:

  • Ratings from 30 kWe to 400 kWe at 60 Hz
  • Liquid petroleum or natural gas
  • Designed and manufactured in facilities certified to standards ISO 9001:2008 and ISO 14001:2004
  • Verified product design, quality and performance integrity
  • Cutting-edge emissions control
  • Best-in-class reliability and availability
  • Optimized maintenance intervals
  • Advanced monitoring & communications
  • Accepts Rated Load in One Step Per NFPA 110
  • Compliant with industry codes & standards

Features & Benefits

FEATURES BENEFITS

Facilities Certified to Standards

ISO 9001:2008 and ISO 14001:2004

Rated Load

Accepts Rated Load in One Step Per NFPA 110

Maintenance Intervals

Optimized

 

Learn more about MTU Onsite Energy Generators (contact PTS for additional specification sheets for other power requirements):

To learn more about PTS Data Center Solutions available to support your Data Center Electrical Equipment & Systems needs, contact us or visit:

 

MTU Onsite Energy Diesel Generators

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MTU-Onsite-Energy-Data-Center-Diesel-GeneratorsMTU engines are the basis for reliable and economical MTU Onsite Energy diesel power generation solutions over 230 kW. MTU Series 1600, Series 2000 and Series 4000 engines offer low fuel consumption and long service intervals, all while meeting emission standards. These engines offer higher displacement than competitors’ engines in the same power range, which results in lower brake mean effective pressure (BMEP), less wear and increased reliability.

For optimum performance, MTU engines are engineered for outstanding one-step load acceptance capacities. This means the unit can quickly supply the required power and, as a result, can be used for even the most demanding applications. A maintenance friendly engine design minimizes downtime and guarantees maximum availability. MTU engines offer low fuel consumption and low maintenance costs. This contributes to the overall low lifecycle cost of the generator set, making MTU Onsite Energy a smart financial choice.

MTU Diesel Generator Set Features:

  • Standby Power Ratings from 30 kVA to 715 kVA ranges at 50 Hz – North and Latin America
  • Designed and manufactured in facilities certified to standards ISO 9001:2008 and ISO 14001:2004
  • Verified product design, quality and performance integrity
  • Industry leading average load factor
  • Cutting-edge emissions control
  • Outstanding fuel economy
  • Best-in-class reliability and availability
  • Optimized maintenance intervals
  • Advanced monitoring & communications
  • Compliant with industry codes & standards

 

Learn more about MTU Onsite Energy Diesel Generators (contact PTS for additional specification sheets for other power requirements):

To learn more about PTS Data Center Solutions available to support your Data Center Electrical Equipment & Systems needs, contact us or visit:

Generac Industrial Gas Generators

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Generac-logoGaseous Power for Demanding Industrial Applications. For industry, power failure is not an option. The first 2009 EPA certified units in the industry, Generac industrial gaseous gensets are custom configured to meet the specific requirements of each application. Heavy duty engines have proven their performance and reliability in industrial applications.

What size gensets are available and what are my fuel options?

Generac-industrial-gas-generatorsDiesel models range from 10 kW to 600 kW. Gaseous models range from 18 kW to 300 kW. A Bi-Fuel option is available on selected models.

Can Generac gensets be integrated with my building management system?

The PowerManager® G-100 features integrated PLC functions and numerous I/Os that make it easy to customize controls and link directly with facilities management systems. Two Modbus RS 485 ports accommodate controller-to-annunciator or building management system communications.

Can I monitor the system’s performance from a remote location?

An optional Ethernet modem with an RS232 port provides remote computer interface using our GenLink® software. Connected PCs display continuously updated information about the generator’s operating condition. Input values and operational parameters can be easily viewed using point-and-click menus and status screens. Valuable information such as generator usage data, alarm history and predictive maintenance reminders are easily accessible.

If an alarm occurs, it is immediately displayed on connected remote computers, and the PowerManager control panel can be programmed to immediately send out a call to both the user’s and your Generac dealer’s pagers or cell phones. The dealer can use GenLink to remotely diagnose the problem, modify parameters to minimize the impact and immediately dispatch a service truck with the necessary parts to quickly correct the situation.

How many automatic transfer switches can be used in a single system?

There is no limit on the number of open transition, closed transition or bypass isolation switches that can be used within a system. Only one soft load switch can be used.

Can the PowerManager G-100 controller interface with third party transfer switches?

Yes, provided that the switches have a two-wire start, and can be inhibited by the controller from switching to the emergency position until adequate generator power has come onto the generator bus.

If I purchase a single standby generator, can I add units later and convert to a Modular Power System?

No. The G-100 controller will not interface with the control system for a Modular Power System. If you think you might need to expand capacity in the future, you should purchase a single MPS genset with the PowerManager G-200 controller.

Features & Benefits

FEATURES BENEFITS

Component Manufacturing

Major components are designed and manufactured by Generac in a vertically integrated environment, ensuring the highest reliability standards.

Servicing

Easily serviced by any qualified diesel technician.

Dealer Network

National industrial dealer network of factory-certified technicians with expertise in everything from system design to diagnostics and repairs.

Response & Support

24/7 emergency response, warranty service and scheduled preventive maintenance programs.

Replacement Parts

Readily available replacement parts and maintenance items.

Learn more about Generac Industrial Generators:

To learn more about PTS Data Center Solutions available to support your Data Center Electrical Equipment & Systems needs, contact us or visit:

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Generac Industrial Diesel Generators

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Generac-logoFor industry, power failure is not an option. The first 2009 EPA certified units in the industry, Generac industrial diesel gensets are custom configured to meet the specific requirements of each application. Heavy duty engines have proven their performance and reliability in industrial applications.

What size gensets are available and what are my fuel options?

Generac-industrial-diesel-generatorsDiesel models range from 10 kW to 600 kW. Gaseous models range from 18 kW to 300 kW. A Bi-Fuel option is available on selected models.

Can Generac gensets be integrated with my building management system?

The PowerManager® G-100 features integrated PLC functions and numerous I/Os that make it easy to customize controls and link directly with facilities management systems. Two Modbus RS 485 ports accommodate controller-to-annunciator or building management system communications.

Can I monitor the system’s performance from a remote location?

An optional Ethernet modem with an RS232 port provides remote computer interface using our GenLink® software. Connected PCs display continuously updated information about the generator’s operating condition. Input values and operational parameters can be easily viewed using point-and-click menus and status screens. Valuable information such as generator usage data, alarm history and predictive maintenance reminders are easily accessible.

If an alarm occurs, it is immediately displayed on connected remote computers, and the PowerManager control panel can be programmed to immediately send out a call to both the user’s and your Generac dealer’s pagers or cell phones. The dealer can use GenLink to remotely diagnose the problem, modify parameters to minimize the impact and immediately dispatch a service truck with the necessary parts to quickly correct the situation.

How many automatic transfer switches can be used in a single system?

There is no limit on the number of open transition, closed transition or bypass isolation switches that can be used within a system. Only one soft load switch can be used.

Can the PowerManager G-100 controller interface with third party transfer switches?

Yes, provided that the switches have a two-wire start, and can be inhibited by the controller from switching to the emergency position until adequate generator power has come onto the generator bus.

If I purchase a single standby generator, can I add units later and convert to a Modular Power System?

No. The G-100 controller will not interface with the control system for a Modular Power System. If you think you might need to expand capacity in the future, you should purchase a single MPS genset with the PowerManager G-200 controller.

Features & Benefits

FEATURES BENEFITS

Component Manufacturing

Major components are designed and manufactured by Generac in a vertically integrated environment, ensuring the highest reliability standards.

Servicing

Easily serviced by any qualified diesel technician.

Dealer Network

National industrial dealer network of factory-certified technicians with expertise in everything from system design to diagnostics and repairs.

Response & Support

24/7 emergency response, warranty service and scheduled preventive maintenance programs.

Replacement Parts

Readily available replacement parts and maintenance items.

Learn more about Generac Industrial Generators:

To learn more about PTS Data Center Solutions available to support your Data Center Electrical Equipment & Systems needs, contact us or visit:

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Cummins Data Center Gas Generators

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Cummins-Lean-Burn-Industrial-Gas-Generators
Cummins lean–burn natural gas engine generator sets are available in sizes ranging from 315kW to 2 MW. These feature very low emissions and are suitable for prime power and combined heat and power (CHP) applications. Low BTU fuel option on specific models.

Lean–burn gas generator sets are designed to provide reliable performance, high fuel efficiency and very low emissions for applications such as high–hour peaking, prime power and combined heat and power (CHP).

Running on a lean mixture of fuel and air, this design significantly reduces the production of nitrogen oxides (NOx) and increases fuel efficiency. The result is a generator set with a high power output, maximum thermal efficiency and NOx emissions as low as 0.7 grams per brake horsepower–hour.

Features & Benefits

FEATURES BENEFITS
Output Range Range in output from 995 kW to 2 MW
Variable quality gas Cummins lean–burn engines are capable of running on a variable quality gas–from pipeline natural gas to field gas or even biogas with a methane number more than 40.
Lean-Burn Design Cummins Power Generation’s unique lean–burn design combines high power densities and extended maintenance intervals for an economical solution to prime power or cogeneration needs.

 

Learn more about Cummins Industrial Generators:

To learn more about PTS Data Center Solutions available to support your Data Center Electrical Equipment & Systems needs, contact us or visit:


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Cummins Data Center Diesel Generators

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Cummins-Industrial-Diesel-Generators
Diesel powered generator sets remain the number–one choice for standby and emergency power systems, worldwide. Able to start and assume load in less than 10 seconds, and rated load in a single step, Cummins diesel generator sets are the epitome of rugged dependability and reliable mechanical and electrical performance. Diesel generators are also well suited to utility peaking plants, Distributed Generation (DG) facilities, peak shaving (or peak lopping), and power management at large commercial or industrial sites. Cummins Power Generation has fully redesigned its high-range generator sets to deliver the reliability, efficiency and versatility that your customers want.

Features & Benefits

FEATURES BENEFITS
Output Range 7.5 kW to 25 kW

35 kW to 500 kW

600 kW to 2.7 MW

Rapid product availability Available quickly through warehousing and manufacturing
Electrical performance Reliable and high quality electrical performance
Servicing Well–established service and fuel supply infrastructure
Reliability Proven reliability and low life–cycle costs
Flexibility High efficiency and operational flexibility
Exhaust After treatments Optional factory–integrated exhaust after treatments reduce emissions for high–hour use in environmentally sensitive locations.

 

The Cummins 7.5 kW to 25 kW air– and liquid–cooled diesel generator sets offer traditional rugged construction, durability, and reliability for applications range from nursing homes to wireless services, to prime power for remote or temporary sites.

In the 35 kW to 500 kW range, Cummins’ diesel–fueled generator sets with PowerCommand offer a wide array of system features that can be tailored to your specific application, whether for standby or prime power.

In the 600 kW to 2.7 MW range, Cummins’ diesel–fueled PowerCommand generator sets meet your most demanding standby or prime power applications.

Learn more about Cummins Industrial Generators:

To learn more about PTS Data Center Solutions available to support your Data Center Electrical Equipment & Systems needs, contact us or visit:

 

Caterpillar Industrial Gas Generators

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Cat® gas generator engines are driving some powerful new changes in the way we see our world. All specifications offer high reliability, durability and fuel flexibility to burn fuels from the low energy landfill gas or bio-gas to pipeline natural gas to field gases.

Caterpillar-Industrial-Gas-GeneratorsCat® Gas Generator Set Features:

  • Ratings from 65 to 6520kW
  • Powered by Cat® engines
  • Wide range of factory-designed options
  • Easy to specify, permit, install and test
  • World-class fuel efficiency and low life-cycle costs
  • Excellent transient response and steady state performance
  • Emissions compliance with most worldwide regulations
  • Single source and turnkey support from the Cat® Dealer network

Features & Benefits

FEATURES BENEFITS
Full Range of Attachments Wide range of bolt-on system expansion attachments, factory designed and tested
Single-Source Supplier Fully Prototype Tested with certified torsional vibration analysis available
Worldwide Product Support
  • Worldwide parts availability through the Caterpillar dealer network
  • With over 1,200 dealer outlets operating in 166 countries, you’re never far from the Caterpillar part you need.
  • 99.5% of parts orders filled within 48 hours. The best product support record in the industry.
  • Caterpillar dealer service technicians are trained to service every aspect of your electric power generation system.
  • Preventive maintenance agreements
  • The Cat Scheduled Oil Sampling (S·O·S℠) program cost effectively detects internal engine component condition, even the presence of unwanted fluids and combustion by-products

 

Learn more about Caterpillar Industrial Generator (contact PTS for additional specification sheets for other power requirements):

To learn more about PTS Data Center Solutions available to support your Data Center Electrical Equipment & Systems needs, contact us or visit:

 

Caterpillar Industrial Diesel Generators

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Caterpillar is the world’s largest manufacturer of high-speed diesel generator sets and engines, offering the largest range of specifications available.

Caterpillar-Industrial-Diesel-GeneratorsCat® Diesel Generator Set Features:

  • Ratings from 13kW to 17,460kW
  • Powered by Cat® engines
  • Wide range of factory-designed options
  • Easy to specify, permit, install and test
  • World-class fuel efficiency and low life-cycle costs
  • Excellent transient response and steady state performance
  • Emissions compliance with most worldwide regulations
  • Single source and turnkey support from the Cat® Dealer network

 

Features & Benefits

FEATURES BENEFITS
Reliable Engine Electronics
  • The electronics used in Cat® Tier 4 Interim engines are more powerful and robust than ever.
  • Increased feature and connection commonality improve the customer experience and increase quality and reliability.
  • Sealed-over-foam wiring harness adds to reliability –even in the most demanding applications.
Next Generation Fuel System As a key component of Cat Tier 4 Interim technology, injection timing precisely controls the fuel injection process through a series of carefully timed microbursts. This injection timing provides more control of combustion for the most efficient fuel burn. To maximize customer value, Cat engineers specified fuel systems based on the power and performance demands for each engine.
Innovative Air Management Cat Tier 4 Interim air management is accomplished through simplified turbocharging solutions. A range of turbocharging solutions, including smart waste-gate and series units, optimizes performance for each model of generator set.
NOx Reduction Systems
  • Utilized on engines < 900 bkW, the Cat NRS is a compact “on-engine” system is designed to reduce NOx by up to 50% while minimizing overall installation size.
  • The Cat NRS captures and cools a small quantity of exhaust gas and sends it back into the combustion chamber where it drives down combustion temperatures and reduces NOx emissions.
  • The result of more than a decade of Caterpillar engineering research into this technology, the Cat NRS is designed to be the most reliable system of its type.
Clean Emissions Module – Particulate Reduction
  • Designed to withstand the most severe applications and conditions, the CEM is a modular after-treatment concept that allows a common core design to be utilized in a wide variety of Cat equipment.
  • Cat generator set customers thus benefit from a cost-optimized, tailored solution that is fully mounted and integrated into the generator set.
  • Depending on the engine model, the CEM may include a diesel oxidation catalyst (DOC) and a diesel particulate filter (DPF) in a stainless steel canister, the regeneration system, mounting and support structure, air cleaner, muffler, sensors and other related components.
Regeneration System
  • This active, high-temperature regeneration system is incorporated in the CEM design for engines rated 130-560 bkW.
  • As soot builds up in the DPF, a combination of models and sensors indicate when regeneration is needed. The electronic control unit (ECU) then searches for the optimum time to initiate the CRS event, such as periods of steady load or speed–providing a flexible and transparent solution in all operating conditions.
  • The CRS safely elevates exhaust gas temperatures to promote oxidation and burn off soot in the DPF. It allows fast and accurate control of regeneration independent of engine exhaust temperatures.
Clean Emissions Module – Selective Catalytic Reduction
  • In generator set applications, engines greater than 900 bkW must conform with stringent NOx emission limits, which necessitate the use of an SCR system. This larger CEM consists of integrated PM and NOx after-treatment.
  • Using a DOC for PM and HC control, as well as an SCR system with air-assist diesel exhaust fluid (DEF) injection, the CEM also features an Ammonia Oxidation Catalyst (AMOX), integrated sound attenuation and an insulated exterior to reduce heat radiation in engine room installations.
  • A dosing control module is connected to the SCR module to provide closed-loop control of the NOx reduction process by monitoring NOx sensors before and after the SCR catalysts and controlling the injection of appropriate amounts of DEF to achieve the desired reduction.

 

Learn more about Caterpillar Industrial Generator (contact PTS for additional specification sheets for other power requirements):

To learn more about PTS Data Center Solutions available to support your Data Center Electrical Equipment & Systems needs, contact us or visit:

 

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