The controller keeps on monitoring the application requirement in a continuous control loop. It then commands the inverter to produce the required voltage and frequency to meet the application requirements. To do this, the controller, comprised of a microprocessor, takes the input signal from the sensor and compares this with a reference signal. It then generates the appropriate control signal for the inverter to vary its output power.

In a typical application, the controller will monitor process parameters such as pressure, flow rate, temperature or liquid level. For example, an oxygen sensor in a boiler provides a signal to adjust the speed of the fan and control the amount of oxygen in the boiler system.

Today’s drives, using microprocessors, semiconductor power switches, and SMDs are now smaller, compact, cheaper, more reliable and efficient. A typical drive will also include a filter to suppress harmonics generated when converting the DC to AC voltage.

Where a regular and reliable power supply is important in Downingtown PA or surrounding areas, people are increasingly turning to generator backup systems for continuity and peace of mind. Ensuring your Downingtown, PA home has a top class reliable installation to keep the electricity flowing is achieved by using a skilled electrical contractor.

Usually powered by fossil fuels, the amount of power output that generator backup systems provide is linked to the devices and requirements of your home or business. Modern generators will be automatic, so any loss of power from the regular supply will be compensated for straight away by the fuel powered system.

The benefits of generator backup systems are:

– keeping your freezer contents frozen – having critical security systems always powered up

The systems can supply anywhere from small output (say 7kW) up to a far larger capacity (say 45kW) for a large house or where there are lots of power hungry appliances. The larger systems often have a number of key features to enable their location and output to be optimized, such as overload protection, outdoor and rust-proofing technology, battery chargers and oil meters to let you know exactly what capacity of the generator backup systems’ power is available.

Technology also allows the transmission of the status of the generator to other locations in the home or business, so you don’t need to go to the basement or outhouse to find out how much power the generator has, or what is being consumed when the generator is needed.

Fitting and locating generator backup systems is definitely a job for your local electrical contractor, and for larger installations, there may be building regulations and other paperwork to get through from choosing the ideal generator to having the installation ready to go.

Downingtown PA Residential generators are commonly used where refrigerators, hot water heaters and security systems need reliability and backup from a main power source.

In conclusion, where outages are common, or where absolutely required by the local circumstances, having generator backup systems stand by with power for when you most need it is a wise and sensible investment within Downingtown PA and surrounding areas.

For an Affordable and reliable Downingtown, PA Generator Backup system consultation / installation, call (610) 269-4136 or click here.

Since we’re in the thick of the holiday season, it’s more important than ever to replace knob& wiring in Manassas. While it’s certainly an exciting time, you should also ensure your home is safe and secure, especially when it comes to your home’s wiring. The main problem with knob & tube wiring in Manassas is that it’s outdated and unable to keep up with today’s electrical demands. It’s still equipped in many older homes across the area, leaving them prone to electrical fires, shocks, and power outages.

Technology giant Google made its start as a search engine, subsequently branching into email, cloud storage, advertising and so much more. Now the company from Mountain View is surging forward with a new application, promising to tell consumers if their roofs are suitable for installing solar panels. The program, called Project Sunroof, works in conjunction with Google Maps to analyze your roof's size, orientation and shade levels to tell you at a glance how much solar energy you could get from it. Read on to learn more about how this convenient software works and how it can help you.

A Mix Between a Solar Electrician and a Search Engine

The program is simple to use – all you have to do is enter your address, and Google does the rest. According to the company, the program analyzes all of the following to determine how much sunlight you can soak up:

The program also provides information about what tax credits are available in your area as well as the local rules regarding selling solar energy back to the utility company when your panels are producing more than you need. It then spits out a recommended installation size, which you can modify based on how much electricity you actually consume according to your average electricity bill.

Pay Nothing and Start Saving Today

Google's entry into the solar market comes at a time when the options for solar are expanding, including the ability to lease panels from solar companies and enjoy savings on your utility bills while paying nothing for the installation and setup. A good setup can last for 30 years or more, with little to no maintenance from an electrician once the installation is completed.

Of course, solar isn't for everybody, since many roofs might be too shaded or otherwise not suitable, and some states still don't have good solar policies. Therefore, Project Sunroof can be a good place to get started to see if your house is a prospect before you even call a solar electrician. Currently, the program is working on a trial basis in Boston, San Francisco and Fresno, with more cities sure to be on the way.

Don't Forget About Human Experts Just Yet

Of course, even a technology company as powerful and ubiquitous as Google can't fully substitute for an experienced solar technician when it comes to analyzing how you can benefit from panels. If a Google query indicates that your home is a good candidate, have a qualified electrician or solar expert make the final determination and help you decide if solar panels are right for you.

Did you know the lighting in your office could be making you feel sick?

Feeling unmotivated and lethargic, suffering from headaches or eyestrain? There are some simple steps you can take to energize the work environment to combat stress and elevate mood by choosing the best lamp for your desk or task lighting needs. 

Healthful illumination is key to an environment partnered with increased productivity and job satisfaction.  The trend today is to improve upon what you already have rather than investing in new construction.  Upgrading your office with affordable and energy-efficient lighting is an investment that leads to outstanding visual improvements and a more healthful work environment.

Employ the Right Lamps for Greater Health Benefits:

Top Picks for Office Lighting:

-Quoizel’s “Zen” collection includes floor and table lamps with Mystic Black finishes and Rattan shades for corporate casual decor.