Thursday, January 24, 2013

SPS Blog Post #3 - Portable Power: The Secret Life Of Generators

I am very happy to have found this article.  It is people like me, those who are not the most knowledgable about power and electricity besides safety, who this article is gear directly towards.  If someone were to ask me what a generator is before reading this article, I would have explained how it was a machine that runs on gas and creates electricity, which is possibly the most vague answer ever.  As someone who eventually

A much more thorough answer is that "a generator is a machine that converts rotating mechanical energy into electricity (Leerman 2)."  While generators con often vary in size and shape they all consist of the same 4 essential parts: the engine, the generating unit, the governor controls and the distribution.

The engine within a generator spins what is called a rotar inside a series of windings called the stator.  As the rotar moves within the stator, electricity is generated (Leerman 2).  The governor controls are what maintains the generator operating efficiently by controlling the load and maintaining the proper engine speed.  The distribution section, like a power disconnect, allows us to tap into the power through the use of lugs and connecters, while also containing all of the circuit breakers in case of an overload (Leerman 2).

Standard generators, those that would be found powering a construction site and similar environment, are loud and are often not as stable as we need them to be, often being unstable by 25 percent.   The generators we require need to be able to power very sensitive electrical equipment at a stable and constant voltage and frequency and generate as little noise as possible for us to be able to have more placement options.  When searching for the right generator, look for types with the words 'quiet', 'production', or 'show' (Leerman 2).

It is also very important to know how much power the show or production you are working on will require.  It is much safer to select a generator that is able to more power than you may necessarily need because you never know when you might need to make a last second addition that needs power.  Not being able to meet the power requirement will negatively impact the production.

Knowing and being familiar with the National Electrical Code, or NEC, will help prevent any unexpected issues with operating a generator or any other electrical system.  Many of the have adopted the safety guidelines outlined within the NEC as law, so that would be another incentive to read up on your power and electrical safety codes.

Works Cited
Leerman, Craig. "Portable Power: The Secret Life Of Generators." ProSoundWeb. 03 Dec 2012: 2. Web. 24 Jan. 2013. <http://www.prosoundweb.com/article/portable_power_the_secret_life_of_generators/live/>.

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