Bath & Body Gift Sets: the Perfect Gift
Filed under Bath & Body
It’s often difficult to find personal gifts to give your best friend or family member for a birthday, thank you or just as a special surprise. Fortunately, bath and body gift sets are a great option. Who wouldn’t enjoy a long, relaxing soak in a hot bubble bath after a hard day or a spray of your favorite fragrance after a steamy shower?
Great For Both Men & Women
Bath products have been favorites with females worldwide for many years. However, you shouldn’t forget about the important men in your life. Designers are realizing that men deserve to be pampered and to relax just as much as women. They have responded by developing entire lines of gift sets and bath products geared specifically to males.
Very Convenient
Gift sets provide all you need to unwind and pamper yourself in one convenient package. All the recipient needs to do is unwrap the package, remove the contents and let their troubles just drift away. They don’t need to spend time visiting different stores to pick out each item individually. They are sure to appreciate your thoughtfulness when you hand pick items for personal bath and body gift sets. You can always add a fancy bow or hand printed gift tag or card to the basket for an extra special touch.
Great Variety
The choices of products included in the various packages are endless. Many stores even allow you to put together your own basket so you can choose exactly which items to include. There is something for everyone, regardless of a person’s age, sex, personal taste or lifestyle.
Gift Sets For Women
Some recommended options for women include hand soaps with delicate feminine scents or scented body lotion, body cream or hand cream that will have you feeling, looking and smelling great. Bath and shower products are available in almost every scent; you can choose from oils, tablets, gel, foam or cream. Last but not least, don’t forget to add a candle so that the gift recipient can enjoy a truly relaxing experience.
Gift Sets For Men
Long gone are the days when men had to sneak their female partner’s bath products “just to try them out.” They can now feel comfortable using the many available products designed to make them feel and look better, as well as unwind. Shaving cream is always a great choice for men. Hand soaps with strong masculine scents, aftershave, deodorant or cologne are other suitable options.
By: IC
About the Author:
Great For Both Men & Women
Bath products have been favorites with females worldwide for many years. However, you shouldn’t forget about the important men in your life. Designers are realizing that men deserve to be pampered and to relax just as much as women. They have responded by developing entire lines of gift sets and bath products geared specifically to males.
Very Convenient
Gift sets provide all you need to unwind and pamper yourself in one convenient package. All the recipient needs to do is unwrap the package, remove the contents and let their troubles just drift away. They don’t need to spend time visiting different stores to pick out each item individually. They are sure to appreciate your thoughtfulness when you hand pick items for personal bath and body gift sets. You can always add a fancy bow or hand printed gift tag or card to the basket for an extra special touch.
Great Variety
The choices of products included in the various packages are endless. Many stores even allow you to put together your own basket so you can choose exactly which items to include. There is something for everyone, regardless of a person’s age, sex, personal taste or lifestyle.
Gift Sets For Women
Some recommended options for women include hand soaps with delicate feminine scents or scented body lotion, body cream or hand cream that will have you feeling, looking and smelling great. Bath and shower products are available in almost every scent; you can choose from oils, tablets, gel, foam or cream. Last but not least, don’t forget to add a candle so that the gift recipient can enjoy a truly relaxing experience.
Gift Sets For Men
Long gone are the days when men had to sneak their female partner’s bath products “just to try them out.” They can now feel comfortable using the many available products designed to make them feel and look better, as well as unwind. Shaving cream is always a great choice for men. Hand soaps with strong masculine scents, aftershave, deodorant or cologne are other suitable options.
By: IC
About the Author:
Ivan Cuxeva endorses Tracy Hart who writes for Melbury's the London based bathroom accessories store. Visit the site for a wide range of wonderful bath and body products including the Acqua Di Parma range.
What Makes A Sport An Extreme Sport?
Filed under Sports & Recreation
Obviously extreme sports get your attention. The have garnered the attention of the U.S. military who has recognized that anyone involved in extreme sports would be good candidates to recruit for their hard to fill special operations positions like the Army Rangers and Navy Seals.
So what is it that makes a sport extreme? Let's take a look at some of the most popular ones
One of the main factors that make a sport extreme is the element of risk of injury or even death. In nearly every sport that is classified in this way you will usually find speed, heights, danger, and stunts. I believe the thing that causes people to become addicted to participating in these sports is the adrenaline rush associated with them. Adrenaline is much like morphine when released in the brain and I see people who just can't seem to get enough no matter how many times they are hurt.
The first of the extreme sports was probably skateboarding. Introduced in the 1960's as a way to stay in shape when the surf wasn't up, skateboarding became a sport of its own and soon competitions were formed with riders jumping over cars and doing tricks in half pipes where they would be floating thirty feet or more above the bottom of the platform. There has been a lot of negative press directed at skateboarders but lately skateboarding is gaining mainstream recognition and is being appreciated worldwide.
Snowboarding is another extreme sport with its own radical characters and is essentially skateboarding on snow. Snowboarders perform many tricks that are the same or similar to those in skateboarding and like skateboarding, the sport has caught on internationally. Today, on any ski slope in America, you will find snowboarders.
Sport climbing is a variation of rock climbing that has become very popular over the years and is enjoyed by those who care more about displaying and testing their strength and athletic ability than adventure.
Skydiving is an extreme sport that is much less competitive but highly dangerous. It is the initial jump that is the biggest thrill with skydiving. There are more competitions being formed now in skydiving with groups forming shapes and creating chains for records before opening their shoots.
The attraction to watching sports where the outcome is unpredictable is growing larger, especially with younger children. No doubt as more people begin to participate in these sports they will seem less and less extreme.
By: Gregg Hall
About the Author:
So what is it that makes a sport extreme? Let's take a look at some of the most popular ones
One of the main factors that make a sport extreme is the element of risk of injury or even death. In nearly every sport that is classified in this way you will usually find speed, heights, danger, and stunts. I believe the thing that causes people to become addicted to participating in these sports is the adrenaline rush associated with them. Adrenaline is much like morphine when released in the brain and I see people who just can't seem to get enough no matter how many times they are hurt.
The first of the extreme sports was probably skateboarding. Introduced in the 1960's as a way to stay in shape when the surf wasn't up, skateboarding became a sport of its own and soon competitions were formed with riders jumping over cars and doing tricks in half pipes where they would be floating thirty feet or more above the bottom of the platform. There has been a lot of negative press directed at skateboarders but lately skateboarding is gaining mainstream recognition and is being appreciated worldwide.
Snowboarding is another extreme sport with its own radical characters and is essentially skateboarding on snow. Snowboarders perform many tricks that are the same or similar to those in skateboarding and like skateboarding, the sport has caught on internationally. Today, on any ski slope in America, you will find snowboarders.
Sport climbing is a variation of rock climbing that has become very popular over the years and is enjoyed by those who care more about displaying and testing their strength and athletic ability than adventure.
Skydiving is an extreme sport that is much less competitive but highly dangerous. It is the initial jump that is the biggest thrill with skydiving. There are more competitions being formed now in skydiving with groups forming shapes and creating chains for records before opening their shoots.
The attraction to watching sports where the outcome is unpredictable is growing larger, especially with younger children. No doubt as more people begin to participate in these sports they will seem less and less extreme.
By: Gregg Hall
About the Author:
Gregg Hall is an author and internet marketing consultant living in Navarre Florida. Find sports collectibles and sports memorabilia at http://www.merchandiseforsportsfans.com
Guidelines for Performing Infrared Inspections of Motor Control Centers
Filed under Parts & Accessories
The Motor Control Center
The MCC enclosure protects personnel from contact with current carrying devices, and it protects the components from various environmental conditions. It is important that the enclosure is mounted to assure accessibility so that qualified personnel (such as a trained thermographer) can open the panel under load. There are different classes and types of MCCs, but generally speaking, an MCC looks like a row of file cabinets with each cabinet representing an MCC section. The drawers of the file cabinet represent the plug-in units that contain the motor control components. Three phase power is distributed within the MCC by bus bars, large metal current carrying bars. The horizontal bus provides three-phase power distribution from the main power supply. Vertical bus in each section is connected from it to individual MCCs. Bracing and isolation barriers are provided to protect against fault conditions. The plug-in units of an MCC have power stabs on the back to allow it to be plugged into the vertical power bus bars of the structure.
Beginning Your MCC Infrared Inspection
Before opening the panel or door on a motor controller, prescan the enclosure to assure a safe opening condition. If excessive heat appears on the surface of the door, extra care should be taken when opening it. The thermographer or escort may decide to note the condition as unacceptable and not take a chance on opening it under load. Once the unit is open, begin with both an infrared and a visual inspection to assure no dangerous conditions exist. Be systematic while conducting the infrared inspection. Remember the system must be under load to conduct the inspection. Work from left to right or follow the circuit through carefully, inspecting all of the components. Look for abnormal thermal patterns caused by high-resistance connections, overloads, or load imbalances. In three-phase systems this can be accomplished by comparing phases. Adjust the level and span on the infrared system to optimize the image. Proper adjustment will identify primary and secondary anomalies. The bus stabs and the connections to the main are important inspection points that are often overlooked or misdiagnosed. The incoming connection to the main horizontal bus is usually located behind a cover or panel that is not hinged. These are typically bolted connections and may have parallel feeders. The bus stab connections on the back of the plug-in units are more difficult to inspect. The thermographer does not have direct view of the connection, and the first indication of a problem can be seen on the incoming conductors feeding the breaker or fused disconnect. Remember, even small temperature rises identified at this point could mean serious problems.
Motor Starters and Motor Controllers
The purpose of the motor starter is to protect the motor, personnel, and associated equipment. Over 90% of the motors used are AC induction motors, and motor starters are used to start and stop them. A more generic term would identify this piece of equipment as a motor controller. A controller may include several functions, such as starting, stopping, overcurrent protection, overload protection, reversing, and braking. The motor starter is selected to match the voltage and horsepower of the system. Other factors used to select the starter include: motor speed, torque, full load current (FLC), service factor (SF), and time rating (10 or 20 seconds).
Understanding the thermal patterns of this equipment is critical to a successful inspection. Also correctly identifying the source of the anomaly can make recommendations more valuable.
Motors may be damaged or their life significantly reduced if they operate continuously at a current above full load current. Motors are designed to handle in-rush or locked rotor currents without much temperature increase, providing there is a limited duration and a limited number of starts. Overcurrents up to locked rotor current are generally caused by mechanical overloading of the motor. The National Electric Code (NEC) describes overcurrent protection for this situation as "motor running overcurrent (overload) protection." This can be shortened to overload protection. Overcurrents caused by short circuits or ground faults are dramatically higher than those caused by mechanical overloads or excessive starts. The NEC describes this type of overcurrent protection as "motor branch-circuit short-circuit and ground-fault protection." This can be shortened to overcurrent protection. The four common varieties of motor starters are: across-the-line, the reversing starter, the multispeed starter, and the reduced voltage starter. Motor starters are generally comprised of the same types of components. These include a breaker or fused disconnect, contactor and overloads. There may also be additional components, including control circuitry and a transformer. Understanding the thermal patterns of this equipment is critical to a successful inspection. Also correctly identifying the source of the anomaly can make recommendations more valuable.
Overcurrent Protection
NEC requires overcurrent protection and a means to disconnect the motor and controller from line voltage. Fused disconnects or thermal magnetic circuit breakers are typically used for overcurrent protection and to provide a disconnect for the circuit. A circuit breaker is defined in NEMA standards as a device designed to open and close a circuit by non-automatic means and to open the circuit automatically on a predetermined overcurrent without injury to itself when properly applied within its rating. If we look at a cutaway of a breaker, we can identify potential connection problems. The line side and load side lugs are the most common source of abnormal heating, but many breakers have a second set of bolted connections on the back of the breaker. Heat from this connection can be misdiagnosed as the main lug. There are also internal contacts where current flow is interrupted by exercising the component. These contacts experience arcing each time the breaker is opened. An arc is a discharge of electric current jumping across an air gap between two contacts. Arcs are formed when the contacts of a circuit breaker are opened under a load. Arcing under normal loading is very small compared to an arc formed from a short circuit interruption. Arcing produces additional heat and can damage the contact surfaces. Damaged contacts can cause resistive heating. Thermal patterns from these poor connections appear as diffuse heating on the surface of the breaker. In addition, there are several types of breakers that have internal coils used for circuit protection. These coils have heat associated with them and can appear to be an internal heating problem, when in fact, it is a normal condition.
Fused Disconnects
Fused disconnects are used to provide over-current protection for motor in the same manner as a breaker. Instead of opening contacts, fuses fail opening the circuit. When overcurrent protection is provided by fuses, a disconnect switch is required for manual opening of the circuit. The disconnect switch and fuse block are typically one assembly. The hinge and blade connections on the switch are a typical source of overheating. High resistance from overuse or underuse is usually the cause. Fuse clips are also a weak connection point for some disconnect designs. Different types or manufacturers of fuses of the same amperage may produce different thermal signatures. While different size or amperage fuses will also have a different thermal pattern, fuse bodies may appear warmer than the rest of the circuit due to conductor size.
Contactors
Starters are made from two building blocks, contactors and overload protection. Contactors control the electric current flow to the motor. Their function is to repeatedly establish and interrupt an electrical power circuit. A contactor can stand on its own as a power control device, or as part of a starter. Contactors operate electromechanically and use a small control current to open and close the circuit. The electromechanical components do the work, not the human hand, as is the case with a knife blade switch or a manual controller. The sequence of operation of a contactor is as follows: first, a control current is applied to the coil; next, current flow into the coil creates a magnetic field which magnetizes the E-frame making it an electromagnet; finally, the electromagnet draws the armature towards it, closing the contacts. A contactor has a life expectancy. If the contactor contacts are frequently opened and closed, it will shorten the life of the unit. As the contacts are exercised, an electrical arc is created between the contacts. Arcs produce heat, which can damage the contacts. Contacts eventually become oxidized with a black deposit. This black deposit may actually improve the electrical connection between the contacts by improving the seat, but burn marks, pitting, and corrosion indicate it is time to replace the contacts. The following thermal patterns are associated with contactors. The coil of the contactor is usually the warmest part of the unit. High temperatures may indicate a breakdown of the coil. Line side and load side lug connections may show high resistance heating from poor connections. Heating from burned and pitted contacts may be thermally "visible" on the body of the contactor.
Overload Protection
The ideal motor overload protection is a unit with current sensing capabilities similar to the heating curve of the motor. It would open the motor circuit when full load current is exceeded. Operation of this device would allow the motor to operate with harmless temporary overloads, but open up when an overload lasts too long.
Typical thermal problems in overloads are found in the connections to the contactor, overload relay, or motor.
This protection can be provided by the use of an overload relay. The overload relay limits the amount of current drawn to protect the motor from overheating. It consists of a current sensing unit and a mechanism to open the circuit. An overload relay is renewable and can work for repeated trip and reset cycles. Overloads, however, do not provide short circuit protection. The melting alloy (or eutectic) overload relay consists of a heater coil, a eutectic alloy, and a mechanical mechanism to activate a tripping device when an overload occurs. The relay measures the temperature of the motor by monitoring the amount of current being drawn. This is done indirectly through a heater coil, which under overload conditions, melts a special solder allowing a ratchet wheel to spin free and open the contact. A bimetallic thermal overload uses a U-shaped bimetal strip. In an overload condition heat will cause the bimetal to deflect and open a contact. The solid state overload relay does not generate heat to cause a trip. Instead, it measures current or a change in resistance. The advantage of this method is that the overload relay doesn't waste energy generating heat and doesn't add to the cooling requirements of the panel. Normal heating for an overload may look like a thermal anomaly. Heat generated in the coil or bimetal may look like a connection problem. Typical thermal problems in overloads are found in the connections to the contactor, overload relay, or motor.
Starters
Starters are the combination of a controller, usually a contactor and an overload relay. The above descriptions of the individual components apply to the starter systems. Reduced voltage starters are used in applications that involve large horsepower motors. They are used to reduce the in-rush current and limit the torque, and thus the mechanical stress on the load. The components of this type of starter should be inspected as the motor steps up to speed. A separate low-voltage starter circuit is used to step the motor up to speed. Once at operating speed, these components are de-energized.
Completing Inspections
Remember that primary anomalies are the problems that readily stand out while secondary anomalies may require that primary anomalies be adjusted into saturation to allow for the identification of a secondary anomaly. For example, different fuse types and sizes will cause different thermal signatures as will overload relays that are sized differently within the same circuit. Anomalies like this should be identified and reported. Also note that when evaluating the severity of a problem, temperature is just one variable. All of the parameters involved with the severity of the anomaly should be considered. To improve temperature measurements, avoid low emissive surfaces. Look for cavity radiators or highly emissive insulation on conductors. Measure loads where component sizing, overloading, or load imbalances are observed. Beware of the effects of wind or convection on components. Note ambient temperatures, large thermal gradients, and the source of heating. Safety should be the top consideration.
Conclusion
Knowing the equipment under inspection allows for the correct identification of problems that could be misdiagnosed or overlooked. Analyzing unfamiliar thermal patterns on a component is easier when equipment design is reviewed. More precise repair recommendations can also be made. Locating temperature differences qualitatively or quantitatively is the real benefit of infrared thermography. Knowing where to look for these temperature differences comes from knowledge of the equipment, and knowledge of the equipment will make a better thermographer.
Please visit us at www.electrophysics.com/snellmcab
For more comprehensive White Papers visit our online Knowledge Center. www.electrophysics.com/thermal-imaging
Electrophysics - IR Cameras for Thermography Professionals
373 Route 46, Fairfield, NJ 07004 Phone: 973-882-0211 Fax: 973-882-0997
By: Josh White
About the Author:
The MCC enclosure protects personnel from contact with current carrying devices, and it protects the components from various environmental conditions. It is important that the enclosure is mounted to assure accessibility so that qualified personnel (such as a trained thermographer) can open the panel under load. There are different classes and types of MCCs, but generally speaking, an MCC looks like a row of file cabinets with each cabinet representing an MCC section. The drawers of the file cabinet represent the plug-in units that contain the motor control components. Three phase power is distributed within the MCC by bus bars, large metal current carrying bars. The horizontal bus provides three-phase power distribution from the main power supply. Vertical bus in each section is connected from it to individual MCCs. Bracing and isolation barriers are provided to protect against fault conditions. The plug-in units of an MCC have power stabs on the back to allow it to be plugged into the vertical power bus bars of the structure.
Beginning Your MCC Infrared Inspection
Before opening the panel or door on a motor controller, prescan the enclosure to assure a safe opening condition. If excessive heat appears on the surface of the door, extra care should be taken when opening it. The thermographer or escort may decide to note the condition as unacceptable and not take a chance on opening it under load. Once the unit is open, begin with both an infrared and a visual inspection to assure no dangerous conditions exist. Be systematic while conducting the infrared inspection. Remember the system must be under load to conduct the inspection. Work from left to right or follow the circuit through carefully, inspecting all of the components. Look for abnormal thermal patterns caused by high-resistance connections, overloads, or load imbalances. In three-phase systems this can be accomplished by comparing phases. Adjust the level and span on the infrared system to optimize the image. Proper adjustment will identify primary and secondary anomalies. The bus stabs and the connections to the main are important inspection points that are often overlooked or misdiagnosed. The incoming connection to the main horizontal bus is usually located behind a cover or panel that is not hinged. These are typically bolted connections and may have parallel feeders. The bus stab connections on the back of the plug-in units are more difficult to inspect. The thermographer does not have direct view of the connection, and the first indication of a problem can be seen on the incoming conductors feeding the breaker or fused disconnect. Remember, even small temperature rises identified at this point could mean serious problems.
Motor Starters and Motor Controllers
The purpose of the motor starter is to protect the motor, personnel, and associated equipment. Over 90% of the motors used are AC induction motors, and motor starters are used to start and stop them. A more generic term would identify this piece of equipment as a motor controller. A controller may include several functions, such as starting, stopping, overcurrent protection, overload protection, reversing, and braking. The motor starter is selected to match the voltage and horsepower of the system. Other factors used to select the starter include: motor speed, torque, full load current (FLC), service factor (SF), and time rating (10 or 20 seconds).
Understanding the thermal patterns of this equipment is critical to a successful inspection. Also correctly identifying the source of the anomaly can make recommendations more valuable.
Motors may be damaged or their life significantly reduced if they operate continuously at a current above full load current. Motors are designed to handle in-rush or locked rotor currents without much temperature increase, providing there is a limited duration and a limited number of starts. Overcurrents up to locked rotor current are generally caused by mechanical overloading of the motor. The National Electric Code (NEC) describes overcurrent protection for this situation as "motor running overcurrent (overload) protection." This can be shortened to overload protection. Overcurrents caused by short circuits or ground faults are dramatically higher than those caused by mechanical overloads or excessive starts. The NEC describes this type of overcurrent protection as "motor branch-circuit short-circuit and ground-fault protection." This can be shortened to overcurrent protection. The four common varieties of motor starters are: across-the-line, the reversing starter, the multispeed starter, and the reduced voltage starter. Motor starters are generally comprised of the same types of components. These include a breaker or fused disconnect, contactor and overloads. There may also be additional components, including control circuitry and a transformer. Understanding the thermal patterns of this equipment is critical to a successful inspection. Also correctly identifying the source of the anomaly can make recommendations more valuable.
Overcurrent Protection
NEC requires overcurrent protection and a means to disconnect the motor and controller from line voltage. Fused disconnects or thermal magnetic circuit breakers are typically used for overcurrent protection and to provide a disconnect for the circuit. A circuit breaker is defined in NEMA standards as a device designed to open and close a circuit by non-automatic means and to open the circuit automatically on a predetermined overcurrent without injury to itself when properly applied within its rating. If we look at a cutaway of a breaker, we can identify potential connection problems. The line side and load side lugs are the most common source of abnormal heating, but many breakers have a second set of bolted connections on the back of the breaker. Heat from this connection can be misdiagnosed as the main lug. There are also internal contacts where current flow is interrupted by exercising the component. These contacts experience arcing each time the breaker is opened. An arc is a discharge of electric current jumping across an air gap between two contacts. Arcs are formed when the contacts of a circuit breaker are opened under a load. Arcing under normal loading is very small compared to an arc formed from a short circuit interruption. Arcing produces additional heat and can damage the contact surfaces. Damaged contacts can cause resistive heating. Thermal patterns from these poor connections appear as diffuse heating on the surface of the breaker. In addition, there are several types of breakers that have internal coils used for circuit protection. These coils have heat associated with them and can appear to be an internal heating problem, when in fact, it is a normal condition.
Fused Disconnects
Fused disconnects are used to provide over-current protection for motor in the same manner as a breaker. Instead of opening contacts, fuses fail opening the circuit. When overcurrent protection is provided by fuses, a disconnect switch is required for manual opening of the circuit. The disconnect switch and fuse block are typically one assembly. The hinge and blade connections on the switch are a typical source of overheating. High resistance from overuse or underuse is usually the cause. Fuse clips are also a weak connection point for some disconnect designs. Different types or manufacturers of fuses of the same amperage may produce different thermal signatures. While different size or amperage fuses will also have a different thermal pattern, fuse bodies may appear warmer than the rest of the circuit due to conductor size.
Contactors
Starters are made from two building blocks, contactors and overload protection. Contactors control the electric current flow to the motor. Their function is to repeatedly establish and interrupt an electrical power circuit. A contactor can stand on its own as a power control device, or as part of a starter. Contactors operate electromechanically and use a small control current to open and close the circuit. The electromechanical components do the work, not the human hand, as is the case with a knife blade switch or a manual controller. The sequence of operation of a contactor is as follows: first, a control current is applied to the coil; next, current flow into the coil creates a magnetic field which magnetizes the E-frame making it an electromagnet; finally, the electromagnet draws the armature towards it, closing the contacts. A contactor has a life expectancy. If the contactor contacts are frequently opened and closed, it will shorten the life of the unit. As the contacts are exercised, an electrical arc is created between the contacts. Arcs produce heat, which can damage the contacts. Contacts eventually become oxidized with a black deposit. This black deposit may actually improve the electrical connection between the contacts by improving the seat, but burn marks, pitting, and corrosion indicate it is time to replace the contacts. The following thermal patterns are associated with contactors. The coil of the contactor is usually the warmest part of the unit. High temperatures may indicate a breakdown of the coil. Line side and load side lug connections may show high resistance heating from poor connections. Heating from burned and pitted contacts may be thermally "visible" on the body of the contactor.
Overload Protection
The ideal motor overload protection is a unit with current sensing capabilities similar to the heating curve of the motor. It would open the motor circuit when full load current is exceeded. Operation of this device would allow the motor to operate with harmless temporary overloads, but open up when an overload lasts too long.
Typical thermal problems in overloads are found in the connections to the contactor, overload relay, or motor.
This protection can be provided by the use of an overload relay. The overload relay limits the amount of current drawn to protect the motor from overheating. It consists of a current sensing unit and a mechanism to open the circuit. An overload relay is renewable and can work for repeated trip and reset cycles. Overloads, however, do not provide short circuit protection. The melting alloy (or eutectic) overload relay consists of a heater coil, a eutectic alloy, and a mechanical mechanism to activate a tripping device when an overload occurs. The relay measures the temperature of the motor by monitoring the amount of current being drawn. This is done indirectly through a heater coil, which under overload conditions, melts a special solder allowing a ratchet wheel to spin free and open the contact. A bimetallic thermal overload uses a U-shaped bimetal strip. In an overload condition heat will cause the bimetal to deflect and open a contact. The solid state overload relay does not generate heat to cause a trip. Instead, it measures current or a change in resistance. The advantage of this method is that the overload relay doesn't waste energy generating heat and doesn't add to the cooling requirements of the panel. Normal heating for an overload may look like a thermal anomaly. Heat generated in the coil or bimetal may look like a connection problem. Typical thermal problems in overloads are found in the connections to the contactor, overload relay, or motor.
Starters
Starters are the combination of a controller, usually a contactor and an overload relay. The above descriptions of the individual components apply to the starter systems. Reduced voltage starters are used in applications that involve large horsepower motors. They are used to reduce the in-rush current and limit the torque, and thus the mechanical stress on the load. The components of this type of starter should be inspected as the motor steps up to speed. A separate low-voltage starter circuit is used to step the motor up to speed. Once at operating speed, these components are de-energized.
Completing Inspections
Remember that primary anomalies are the problems that readily stand out while secondary anomalies may require that primary anomalies be adjusted into saturation to allow for the identification of a secondary anomaly. For example, different fuse types and sizes will cause different thermal signatures as will overload relays that are sized differently within the same circuit. Anomalies like this should be identified and reported. Also note that when evaluating the severity of a problem, temperature is just one variable. All of the parameters involved with the severity of the anomaly should be considered. To improve temperature measurements, avoid low emissive surfaces. Look for cavity radiators or highly emissive insulation on conductors. Measure loads where component sizing, overloading, or load imbalances are observed. Beware of the effects of wind or convection on components. Note ambient temperatures, large thermal gradients, and the source of heating. Safety should be the top consideration.
Conclusion
Knowing the equipment under inspection allows for the correct identification of problems that could be misdiagnosed or overlooked. Analyzing unfamiliar thermal patterns on a component is easier when equipment design is reviewed. More precise repair recommendations can also be made. Locating temperature differences qualitatively or quantitatively is the real benefit of infrared thermography. Knowing where to look for these temperature differences comes from knowledge of the equipment, and knowledge of the equipment will make a better thermographer.
Please visit us at www.electrophysics.com/snellmcab
For more comprehensive White Papers visit our online Knowledge Center. www.electrophysics.com/thermal-imaging
Electrophysics - IR Cameras for Thermography Professionals
373 Route 46, Fairfield, NJ 07004 Phone: 973-882-0211 Fax: 973-882-0997
By: Josh White
About the Author:
Options to the Free Movie Download of the DVD Movie Zelig
Filed under Videos/Movies
I spent 15-20 minutes searching for a free download of the Zelig movie but I couldn?t find where to download it from. Instead, the next best thing I discovered was the offer of Amazon.ca. For a small fee, they offered access to the movie, which for a Woody Allen maniac like me is more than acceptable.
For me videos are one of the favorite free time activities. It is also a great way for me and my family to relax after a busy day or week at the office or school. But when one has a large family, seeing newly released movies in the theatre is very expensive. Renting movies is more of an option but still it is not always possible to get the movies you want. So, the best option is to get movies for free (or for a small fee) from the Internet.
My search for a free download of the Zelig movie was fruitless but I managed to find some great reviews about it. There were people who considered the movie absolutely bogus but the majority of people agreed that this movie is great and it is worth watching. However, have in mind that the movie requires your full attention; otherwise you can miss a lot of the humor.
The reviews say that Zelig resembles a documentary about an individual who is actually not a person. The main character borrows other people?s personality and features because he doesn?t have a personality of his own.
This personality borrowing is the main topic. The poor man assumes so many and different personalities (such as a pope, a dictator, and a novelist) that you can?t help but laugh at all of the transformations he goes through.
So, what is the message Woody Allen is trying to convey with this comedic attempt at portraying an individual with chameleon-like qualities? One review suggests it is a satiric approach to the importance of being your own person, without the need to seek public approval.
Some say that the main character is based on Woody Allen himself. This is hardly the case because Woody Allen certainly does not seek public approval for what he does, though to some extend his own personality is somehow controversial. But the movies he directs and acts in are certainly everything but lacking personality.
If you are really determined to get all the latest and greatest movies, you should subscribe to a movie download site. The main advantage of these sites is that downloads are hassle-free, all the stuff is legal, and their support is fantastic.
Finally, if you can?t find where to download the Zelig movie for free, you might resort to either renting it, or buying it. If you are a fan of Mr. Allen, then you should really make your best to get this movie and watch it. However, have in mind that this movie really does require all of your attention, so plan a few hours only for it!
By: Isaiah G. Henry
About the Author:
For me videos are one of the favorite free time activities. It is also a great way for me and my family to relax after a busy day or week at the office or school. But when one has a large family, seeing newly released movies in the theatre is very expensive. Renting movies is more of an option but still it is not always possible to get the movies you want. So, the best option is to get movies for free (or for a small fee) from the Internet.
My search for a free download of the Zelig movie was fruitless but I managed to find some great reviews about it. There were people who considered the movie absolutely bogus but the majority of people agreed that this movie is great and it is worth watching. However, have in mind that the movie requires your full attention; otherwise you can miss a lot of the humor.
The reviews say that Zelig resembles a documentary about an individual who is actually not a person. The main character borrows other people?s personality and features because he doesn?t have a personality of his own.
This personality borrowing is the main topic. The poor man assumes so many and different personalities (such as a pope, a dictator, and a novelist) that you can?t help but laugh at all of the transformations he goes through.
So, what is the message Woody Allen is trying to convey with this comedic attempt at portraying an individual with chameleon-like qualities? One review suggests it is a satiric approach to the importance of being your own person, without the need to seek public approval.
Some say that the main character is based on Woody Allen himself. This is hardly the case because Woody Allen certainly does not seek public approval for what he does, though to some extend his own personality is somehow controversial. But the movies he directs and acts in are certainly everything but lacking personality.
If you are really determined to get all the latest and greatest movies, you should subscribe to a movie download site. The main advantage of these sites is that downloads are hassle-free, all the stuff is legal, and their support is fantastic.
Finally, if you can?t find where to download the Zelig movie for free, you might resort to either renting it, or buying it. If you are a fan of Mr. Allen, then you should really make your best to get this movie and watch it. However, have in mind that this movie really does require all of your attention, so plan a few hours only for it!
By: Isaiah G. Henry
About the Author:
At MoviesandDownloads.com, we are proud to have Isaiah Henry as a writer and reviewer of online bootleg movie downloads sites. Read articles on the Movies Blog on movie downloads.
Sense and Style of Looking for a Gucci Bag or Replica Gucci Bag
Filed under Handbags
Your sense and style makes a lot of difference, authentic GUCCI Bags give an impression of high fashion sense, especially when you carry it with fashionable clothing with a GUCCI tag on it. Eurohandbag can provide you with Gucci handbag which can matched your wardrobe. The designs have different colors to choose from.
A designer’s brand makes a lot of difference, because it gives you an assurance of quality and fashion sense, which is where Gucci bags have the niche.
If you have fashion sense, the global market is full of replica Gucci Bag, but how can you tell difference?
The real Gucci bag is actually a trademark of an Italian brand which has passed through decades of design and study making its historical presence in the fashion industry.
In the beginning of this era, Gucci bags is just made in its hometown, Italy, but now as more and more women are hoping to have a Gucci Jackie O bag or a Gucci Hobo Bag, it is easy for them to get one at an affordable price an authentic Gucci Bag.
Gucci Bags are already made in different parts of the world, it is found in its motherland Italy, U.S.A, Mexico, and China. If you ever heard of the Gucci Indy Bag, which is rocking the whole globe, it has find its way in New York City Gucci shelves and selling like hot cakes despite the grandness of its price. It has the exotic aura of India and European design. This design has passed through several quality control and fashion designers before it eventually gets it “GUCCI CONTROLLATO CARD.” The reason why some Gucci bags are affordable is because of the absence of export taxes that goes with it, as it navigates the globe.
Some Gucci handbags are sold at a discounted price, because it is a design for summer, when it’s already winter in Europe, so most seasonal fashionitas will opt to buy the latest season of Gucci bag collection. Global women, who often travel, takes advantage of this sale when buying a Gucci Bag at a discounted price, because anyway, if they travel and visit the Caribbean, Singapore, Malaysia or the Philippines, their summer Gucci handbag will always be at the top of the line, because in those three countries, it is always summer!
So, how can you tell the difference of an authentic Gucci bag from a replica Gucci bag? Buying it in Europe have five distinctions, for one it’s the soundness of the stretch of the material, the conrollato card, the serial number, the zips, the stitches, the tag and most importantly the Gucci dust bag.
However, if you are buying it at a discounted price or second hand, not all of the above will authenticate a Gucci bag, only several points will count:
First, the material, whether it is made of leather, a snake skin, or a crocodile belly, it is made at its highest quality, meaning the stitches are free of ditches. Loose ends and tear are common to low quality replica Gucci bags. Scratches are also easily seen, it means the bag is made of a synthetic material and therefore replicated.
Second, check on the zipper, most Gucci Bags have unique zipper designs, some zipper are hard to close because of its contours. Most replica Gucci bags have zips that are easily misplaced or are mismatched with color, since they are done hurriedly and without the strictness of quality control.
Third, if the Gucci Bag is discounted or second hand, it has its tag just the same, stitched in its interior with the serial number, replica Gucci Bag doesn’t have this tag.
If you are the type of wanting to try on a replica Gucci Bag, it is really up to you, but it is good to know when your money is going, at least you will not be duped in investing in a replica Gucci Bag with a price of an original Gucci bag, the tips will guide you in making your decision.
By: Chris Li
About the Author:
A designer’s brand makes a lot of difference, because it gives you an assurance of quality and fashion sense, which is where Gucci bags have the niche.
If you have fashion sense, the global market is full of replica Gucci Bag, but how can you tell difference?
The real Gucci bag is actually a trademark of an Italian brand which has passed through decades of design and study making its historical presence in the fashion industry.
In the beginning of this era, Gucci bags is just made in its hometown, Italy, but now as more and more women are hoping to have a Gucci Jackie O bag or a Gucci Hobo Bag, it is easy for them to get one at an affordable price an authentic Gucci Bag.
Gucci Bags are already made in different parts of the world, it is found in its motherland Italy, U.S.A, Mexico, and China. If you ever heard of the Gucci Indy Bag, which is rocking the whole globe, it has find its way in New York City Gucci shelves and selling like hot cakes despite the grandness of its price. It has the exotic aura of India and European design. This design has passed through several quality control and fashion designers before it eventually gets it “GUCCI CONTROLLATO CARD.” The reason why some Gucci bags are affordable is because of the absence of export taxes that goes with it, as it navigates the globe.
Some Gucci handbags are sold at a discounted price, because it is a design for summer, when it’s already winter in Europe, so most seasonal fashionitas will opt to buy the latest season of Gucci bag collection. Global women, who often travel, takes advantage of this sale when buying a Gucci Bag at a discounted price, because anyway, if they travel and visit the Caribbean, Singapore, Malaysia or the Philippines, their summer Gucci handbag will always be at the top of the line, because in those three countries, it is always summer!
So, how can you tell the difference of an authentic Gucci bag from a replica Gucci bag? Buying it in Europe have five distinctions, for one it’s the soundness of the stretch of the material, the conrollato card, the serial number, the zips, the stitches, the tag and most importantly the Gucci dust bag.
However, if you are buying it at a discounted price or second hand, not all of the above will authenticate a Gucci bag, only several points will count:
First, the material, whether it is made of leather, a snake skin, or a crocodile belly, it is made at its highest quality, meaning the stitches are free of ditches. Loose ends and tear are common to low quality replica Gucci bags. Scratches are also easily seen, it means the bag is made of a synthetic material and therefore replicated.
Second, check on the zipper, most Gucci Bags have unique zipper designs, some zipper are hard to close because of its contours. Most replica Gucci bags have zips that are easily misplaced or are mismatched with color, since they are done hurriedly and without the strictness of quality control.
Third, if the Gucci Bag is discounted or second hand, it has its tag just the same, stitched in its interior with the serial number, replica Gucci Bag doesn’t have this tag.
If you are the type of wanting to try on a replica Gucci Bag, it is really up to you, but it is good to know when your money is going, at least you will not be duped in investing in a replica Gucci Bag with a price of an original Gucci bag, the tips will guide you in making your decision.
By: Chris Li
About the Author:
Can a Gucci Bag be replicated? Your sense and style is Gucci, do you prefer the original or the replica Gucci bag ?