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Cobra Power Systems is dedicated to providing the best products at the lowest prices with the best service. With nearly a decade in the industry, we have what it takes to provide our customers with useful engineering assistance that in many cases will result in saving thousands of dollars.

Cobra Power Systems is committed to supplying all your generator needs. We sell, service and maintain standby emergency power generators, diesel generators, gaseous generators, construction portable and mobile generators, diesel engines, automatic transfer switches, manual transfer switches, ISO container generators, electrical generator ends, super quiet generators, commercial and residential ultra-quiet generators, trailer mounted construction generators, power modules, larger cogeneration systems, electrical transformers, switch gear, parallel equipment, marine generators and propulsion engines, mobile light towers, agricultural generators, switchable voltage generators, RV gas and diesel generators, fuel tanks, generator controllers, and used generators.

We offer all the major product brand names as surplus or new equipment: ASCO, Baldor, Briggs & Stratton, CAT, Cummins, Cutler Hammer, Detroit Diesel, Deutz, Generac, Himoinsa, Honda, Isuzu, Iveco, John Deere, KatoLight, Kohler, Kubota, Lister Petter, Lombardini, Marathon, Mecc Alte, Mitsubishi, MQ Power, Newage, Onan, Perkins, SDMO,Sens, Taylor Power, Thomson Technologies, Tradewinds, and Zenith.

We supply to industry, homeowners, boat and yacht owners, recreational vehicle owners and manufacturers, electrical contractors, construction companies, rental companies, GSA, military, marinas, truckers, and off-grid alternative energy users.

At Cobra Power Systems, we have Largest Selection of Diesel Generators, Electric Generators, Home Generators, Natural Gas Generators & Industrial Generators. We consider ourselves your Source for Natural Gas, Electric Generators, Propane, and Diesel Generators, and Generator Parts, and we invite you to call on us for any emergency generator need you may have. We can provide you with diesel generators, natural gas, or propane-powered generators. And we offer only the top quality diesel generator and electric generator products priced at or below our competition!

At Cobra Power Systems, we offer you the highest quality diesel generator, electric generators for military, industrial, commercial, and home use at wholesale prices! All of our generator models feature high quality engines with worldwide parts and service support for all your generator needs. Our products range from 12kW natural gas generators for home standby, to 2 megawatt units for industrial and commercial applications.

Please call Cobra Power Systems for any electrical generation need!

Why Choose Cobra Power Systems for Your Diesel-Powered Electrical Generator Purchase?

At Cobra Power Systems, we build our business on referrals and repeat customers. We can provide you with the specific generator that best fits your needs from our extensive line of custom configured units. We believe that a generator is a major investment, and you should not select one without assistance. When choosing a generator and its accessories, you should work one of our knowledgeable sales professionals. Our sales staff is ready to help and will assist you in the selection of the right generator for your particular application, even if it is not from us. If you would like to do some research on your own and have a technical question, we are here to assist with that as well.

For a better understanding of generators, please refer to the following pages:

Generator Selection Guide - What to look for?
Why a diesel generator is a better choice than natural gas?
Generator Installation Guide
Electric Generator Buying Hints - Our Consumer Guide to Purchasing Generators

Once you have decided to purchase a generator set, there are several considerations you must keep in mind when choosing which set to buy, where and how to install it.

This guide will help you make informed decisions during the selection process. Choosing the right machine is not difficult if you take the time to analyze your requirements carefully. Cobra Power Systems sales engineering staff is available to help you with all steps of the generator selection and sizing process.

You will also need to know a few terms and have a basic understanding of the different types of generator sets and their operating principles. Installation requires expert assistance and a strict adherence to local codes and regulations. We are extremely well versed in installation techniques, and are here to help .

Stand-By or Prime Power Generators?
Simply put, prime power means to generator will run in lieu of the power grid, where stand-by generators run to backup normal utility power.

Phases
The generation of AC electric power is commonly three phases, in which the waveforms of three supply conductors are offset from one another by 120°. These three conductors are commonly housed in a single conduit (e.g. a metal pipe), but they are also commonly separately housed, or spaced in open-air, such as along utility poles. Standard frequencies are either 50 or 60 Hz. The voltage across a pair of these conductors, or between a single conductor and a neutral conductor is single phase electric power.

Most homeowners will require single phase, whereas industrial or commercial applications usually require three-phase power. Three-phase generators are set up to produce 120/208 or 277/480 volts. Single-phase sets are 120 or 120/240. Use the low voltage to run domestic appliances and the high voltage for your motors, heaters, stoves, and dryers.

Gas Or Diesel-Powered Generators?
There are many pros and cons for this topic, here are a few:
Advantages of Diesel Generators:
o Least flammable fuel source
o Easily obtained
o On site fuel delivery available
• Disadvantages:
o 18-24 month shelf life
o Installing large storage tanks raises cost of system
o May not be available during power outages

Advantages of Natural Gas Generators
o Unlimited fuel source - refueling not necessary
o Clean burning
o Available during power outages
• Disadvantages:
o May be unavailable during natural disasters (earthquakes, etc)
o Lower power output (30% less BTU's per unit than gasoline)
o Fuel system plumbing results in higher installation cost
o Not available in many areas
Disadvantages:
o Pressurized cylinder of flammable gas
o Fuel system is more complicated (increased possibility of failure)
o Larger tanks are not aesthetically pleasing (unsightly)
o Fuel system plumbing results in higher installation cost
o Somewhat Expensive

Generator Operating Speed
Electric equipment is designed to use power with a fixed frequency: 60 Hertz (Hz) in the United States and Canada, 50 Hertz in Europe and Australia. The frequency output of a generator depends upon a fixed engine speed.
1800 rpm water cooled diesel units operate on average 12-30,000 hours before major maintenance is required.
1800 rpm water cooled gas units normally operate 6-10,000 hours because they are built on a lighter duty gasoline engine block. 3600 rpm air-cooled gas units are normally replaced – not overhauled at 500 to 1500 hours.
Because the gas generators burn hotter (higher btu of the fuel), you will see significantly shorter lives than the diesel units. Our Diesel generator products are from the world’s top diesel generator manufacturers. We offer products for high-end residential customers with larger homes to industrial and military generator customers with prime power or critical emergency backup requirements.

To produce 60 Hz electricity, most generator engines operate at 1800 or 3600 RPM. Each has its advantages and drawbacks. At 1800 RPM, four pole sets are the most common and least expensive. They offer the best balance of noise, efficiency, cost, and engine life. At 3600 RPM, two pole sets are smaller and lightweight; they are best suited for portable, light-duty applications.

In simple terms it’s like operating your car at 100 mph, versus 50mph — at 50mph your car will last longer; it is quieter, requires less maintenance, and has a longer life. Most 3600 rpm units are twin cylinder air-cooled lawn mower engines, while the water cooled 1800 rpm units are comparable to those found in forklift and tractor engines. The 1800 rpm water cooled units will last longer, offer less maintenance problems, and be more fuel efficient.

Features & Benefits to Look for In A Diesel Engine Generator
Engine Block: For long life and quiet operation, we recommend four-cycle, liquid cooled, industrial duty diesel engines. Cummins, John Deer, Detroit Diesel, Caterpillar (CAT), Volvo are some of the main brands we recommend.

Intake and exhaust: Time and money savers include a large, integral air cleaner with replaceable filter element and a residential muffler, which is built into the exhaust manifold. This saves the need for an additional muffler.

DC electrical system — A standard 12 volt system should include:

Starter motor and battery charging alternator with a solid state voltage regulator
Diesel units should come with a pre-heat switch and start/stop switch
Safety shutdown system to protect the engine in case of oil pressure loss, generator overspeed or overcrank and high water temperature
DC system circuit breaker.
Generator End

AC generators should have a 4-pole revolving field. An automatic voltage regulator will provide “clean” power. Normal utility power is +/- 5% voltage regulation. Our 1800-rpm models are even better +/- 2%! All of our models offer AVR – Automatic Voltage Regulation.

Engine Accessories and Controls

Upon determining the generator size you need, make a list of optional and installation equipment you require. A good primary fuel filter / water separator is necessary to protect your engine's fuel system. Stand-by sets may require a block heater to keep the coolant / water mix at an adequate temperature for easier starting.
For noise abatement, we recommend a residential (not industrial grade) muffler.
Generator AC Switchgear and Controls
Nowadays, generator manufacturers use very sophisticated controls that offer a wide array of control features and benefits as compared to traditional 2 wire start generators. KW metering, Current, Voltage, and Frequency are just a few of the 20 to 30 alarm functions most controller have.

The circuit breaker protects the generator set from short circuit and unbalanced electrical loads. The distribution panel divides and routes the connected loads and includes circuit breakers to protect these loads. Stand-by systems also require a main circuit breaker between the utility source and the transfer panel.

The transfer switch switches power from the utility upon a power outage, run the emergency panel, and upon restoration of normal power will transfer back, and cool down the generator automatically!

Cobra Power Systems Generator Systems can provide for all your diesel generators and backup electric generator needs from 2 megawatt units for industrial generator customers to residential models.

We can provide you with diesel, natural gas or propane powered generator units. We offer only top quality products that are priced at or below our competition who offer lesser brands!

Cobra Power Systems Generator Systems – On Power, On Demand.

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