Tips for Stress free life > Expert Zone > Home Improvement
Home Improvement Tips
|
| |
|
| |
|
|
Tips for Stress free life > Expert Zone > Home Improvement Home Improvement Tips |
|
|
|
|
Vacation Break for Electrical Machines
Are you overloaded? Have you become a part of the highly stressed modern working environment? You may need a break - a vacation, a change in environment, a change of pace... Similarly, machines can be overloaded too. Those that were designed for a particular system are often pushed to their limits when new requirements emerge. Just like the final straw that breaks the camel's back, electrical machines too, can reach their breaking point. If there is no vacation for them, they will burn. Fuses and circuit breakers are designed to stop the current in a circuit before any damage can occur - create a vacation or a break for them. A circuit breaker is one of the ways to prevent motors (or other electrical machines) from burning due to overloading. All electrical motors produce heat when running. At the time of a fault, this heat builds up at a much higher rate than it can be dissipated. This can result in damaged equipment, fire or even explosion. The electrical protective device like the circuit breaker is designed to de-energize the circuit before this heat level becomes dangerous. There are basically 2 means of activating a break - thermally (heat) or magnetically. Thermal circuit breakers make use of bimetallic strips that will bend due to the different expansion rates of each of the metals in the strip. The bending of the strip will move a tripping mechanism latch that will then open up the contacts of the circuit breaker. Because bimetallic strips take time to heat up and bend, this type of tripping device is used for tripping prolonged overloaded situations. The setting for breaking the circuit at a particular overload value can be adjusted. Magnetic circuit breakers make use of the field strength of magnetic coils to trip a latch that will then open up the contacts of the circuit breaker. This method is used for high current faults, like in a short circuit. This method is designed to trip instantly. A thermal-magnetic circuit breaker incorporates both a thermal strip and a magnetic coil. This type of circuit breaker is able to protect against momentary overloads as well as high or short circuit current faults. What happens if the circuit breaker is placed in a high temperature environment? The thermal bimetallic strip bends on high temperature. In this case, the current is not causing the high temperature in the bimetallic strip, but the ambient air is! The current may still be below the safe operating rated value for the motor. In this case, a compensating bimetallic strip may be incorporated into the circuit breaker to eliminate this type of error. These circuit breakers are often used in hot areas like furnace, oven, and boiler rooms. Circuit breakers can be reset very quickly, once they have tripped. Can your break or vacation be reset very quickly too? Don't reset. Take a long break! Until next time... Are You Stumped by Complicated Electrical Calculations?Learn Electro-Technology Calculations for 1st Class Marine Engineers Competency License Exams at Electro-Technology Questions & Answers e-book. Applicable for all electrical installations both on ships and at shore. Many years of working experience in Marine, Facilities, Construction has given the author material for writing e-books and articles related to engineering, and management. Subscribe to facworld ezine. More information at Marine Engineer and M & E Engineer
MORE RESOURCES:
Google News |
 |
|
|
RELATED ARTICLES
Remodeling Your Kitchen Remodeling a kitchen is one of the best investments a homeowner can make. For most homeowners it is the most important room in the house. Choosing the Right House Plan Now that you have made that bold decision to build a home of your dream, it absolutely important to get the best home you can imagine. For you and all of us, building the home of our desire is one time affair in our life time. Spring Chores at the Cabin Whether you live in your cabin year round or it's been closed up for the winter, it's time for spring cleaning. It's hard to get motivated. 10 Spring Cleaning Tips For Your Kitchen The words "spring cleaning" can make the neatest person cringe. They mean more work. Where's the Care Label for my New Bedspread? I love bedspreads, don't you? A comforter can be used for the winter months but the bedspread is brought out of the linen closet in the spring when it's warming up and the whole world is freshening and renewing itself outside. A bedspread is available in most any color, pattern or fabric and it can be one of the most expensive items you put in your bedroom. How To Buy A Conservatory In The UK The first question is, what is a conservatory?There is no standard definition of what constitutes a conservatory (apart from "greenhouse"). This is one reason why quotes vary so widely. The Best Way To Clean Carpet? What is the absolute best way to clean carpet? Carpet manufacturers are almost unanimous. The best way is to use hot-water extraction, also called steam cleaning. A Guide to Commercial Steel Buildings Commercial steel buildings are prefabricated and custom-designed for use as offices, stores, distribution centers, freight terminals, service stations, aircraft hangers, commercial garages and more. Since they can be molded into a range of shapes and sizes, steel buildings are finding applications in most any industry imaginable. Pergo Flooring Is Perfect For The Home or Office Pergo flooring was invented more than 75 years ago, and has since become the leader in the laminate flooring industry. Pergo has been the leader in both design and laminate technology. Electrical Safety and Power Tools Power tools are one of the greatest conveniences for getting handyman jobs and professional jobs done quickly, but since power tools often run on electricity, it is essential that safety instructions are followed.Here are a few quick power tool safety tips. Family Fun - Is Swimming In A Safe Pool Family fun is one of the most important things you can strive for to give your children some lasting memories they will always cherish; even into adulthood. Your children will always remember the times you spent together as a family on vacation or at home. A Checklist for Bathroom Remodeling Plans Careful planning is the key to a successful bathroom-remodeling project. Before you begin any work in the bathroom, create a budget, a floor plan, a list of supplies, a timetable, and important legal considerations. Types of Table Saws A table saw is one of the most popular pieces of machinery used for woodworking. It consists of a circular saw powered by an electric motor that is mounted onto a table. The Motors Best Friend The starting current of motor can become 3 to 6 times the normal running current! That's normal for motors. The motor can experience this high current for a period ranging from 20 to 50 seconds. Luxury Bedding is More Than Just Thread Count Thread count is the most widely referred to term when searching for those "perfect sheets." Generally, the higher the thread count, the more costly you'll find the sheets. Planning Your Replacement Windows Installation Windows are the eyes of a home. From inside, you see the outside world through them. Making the Most of a Small Bathroom In bathroom terms at least, bigger doesn't have to be better - It's all just a case of making the most of the modest proportions you're presented with! And what's more, designing a bathroom that's small on space usage but big on style and functionality should be a lot more fun.The Click Bathrooms guide to maximising a modest bathroom follows three simple principles?1 - Make it seem biggerA great way of tackling a bathroom with limited dimensions is by creating the illusion of space. Heres How To Know Which Kitchen Design Is Right For You Kitchen design is a sea of opportunity filled with potential. Color schemes, wallpaper and other aesthetic additions will make up the design portion of your kitchen. Get Your Home Ready To Sell Have you been considering selling your home in the near future? If you have, then it wouldn't be a bad idea to take a good long look at your home, using an unbiased eye.After all, a clean, appealing, well maintained home has much better odds of selling, selling for more, and selling faster. Refinishing A Hardwood Floor Want to bring your hardwood floors back to their former beauty, but don't have the money? Then read on for some tips on how you can refinish the floor yourself.If you have the time and don't mind doing the work, then refinishing your floors yourself is a great option but before starting out, it's not a bad idea to get an estimate from a professional so you can compare the cost of doing it yourself to what they would charge.
|
|
You are here |
|
| Home Improvement | Home Improvement - Complete list | |
|
| Main Home | | Meditation Corner | |
|
|
| Recommend us | |
|
[About
us] [Contact] [Privacy
Policy]
Copyright 2006, Meditation
is Easy.com, All
rights reserved
