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UPS information system provides solution for different categories of customers.
Individuals Customers
i) Easy Access to Shipping and Tracking
ii) Everything You Need to Ship and Track, Online
iii) Receive Packages Your Way
iv) Access UPS When and Where You Need To
v) Get Your UPS Bill Faster vi)Returns Made Simple
Business Clients
i) Save Time and Money
ii) Manage Shipping Online
iii) Receive Packages at Your Convenience
iv) Access UPS Where and When You Need To
v) Get Paid Faster
vi)View and Pay Your Invoice
vii) Excess resources like call center and others.
Shipping and Receiving Managers
ii) Leverage UPS Technology to Manage Shipping and Returns
iii) Take Control of Your Receiving Process
v) Access UPS When and Where You Need To
vi) Receive Your Invoice Electronically From UPS
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How can we run uninterrupted power supply in parallel?
Uninterruptible Power Supplies (UPSs) can be configured in parallel mode by connecting the output terminals of both UPSs. The capacity and all technical specifications and feautures of the UPS should match with another UPS. The UPS manufacturers ensure the synchronization of all UPSs connected in parallel using bus connectors that serve as frequency, phase, voltage, and current monitoring to maintain the stability of the systems.It can be paralleled more than 2 units which is usually up to 8 units depending on the manufacturer's specification. Before switching on the UPS make sure that all the parameter settings are all the same for the rest of units to be paralleled. If all units are now running, if one UPS fails the protected load should not be affected since there are still some units that can be able to support the entire loads.
How many people still use DC electricity?
If you are talking about DC power line electricity, it is no longer used in homes or industry however many electric rail systems (e.g. trolley, highspeed trains) use DC electricity as DC motors have several advantages for motive power compared to AC motors. A few very long transmission power lines use DC electricity, but the DC is converted back to AC electricity before being distributed to customers. Certain industries (e.g. electroplating, aluminum refining) use DC internally, but they use large rectifiers to convert 3-phase AC to DC electricity when it enters the plant.If you are talking about electronic equipment (e.g. radios, computers, cell phones) these usually contain batteries. Everyone using battery powered electronics (or lighting, toys, cars, UPSs, etc.) uses DC electricity, because that is the way batteries provide electricity.Nearly everyone uses DC electricity, in battery powered devices.
What is the difference between a square wave and a sine wave?
Inverter Tutorial and Frequently Asked Questions:Q: What is an inverter?A: An inverter takes DC power (battery or solar, for example) and converts it into AC "household" power for running electronic equipment and appliances.Q: How is an inverter different than a UPS?A: A UPS typically includes the battery and battery charger in one stand alone unit. However, there are UPSs that use external batteries, and PowerStream makes inverters with battery chargers, so the differences blurr as features proliferate.UPSs also can have communication with the equipment that it is powering letting the equipment know that it is operating on standby, giving it shutdown warning, or communicating with the human in the loop. Inverters typically don't have this communication.Q: Why are they called inverters?A: Originally converters were large rotating electromechanical devices. Essentially they combined a synchronous ac motor with a commutator so that the commutator reversed its connections to the ac line exactly twice per cycle. The results is ac-in dc-out. If you invert the connections to a converter you put dc in and get ac out. Hence an inverter is an inverted converter. For more information about such converters see http:/www.nycsubway.org/tech/power/rotary.HTML (thanks to Karl W.Berger, PE for this answer).Q: What if I want a DC output to run such things as a laptop from a car cigarette lighter, or telephone equipment at -48 volts?A: Then you want a DC/DC converter. PowerStream has some DC/DC converters just for those purposes. http:/www.powerstream.com/dcdc.htmQ: What is the difference between sine wave and modified sine wave?A: Alternating current (AC) has a continuously varying voltage that swings from positive to negative. This has great advantages in power transmission over long distances. Power from your power company is carefully regulated to be a perfect sine wave, because that is what naturally comes out of a generator, and also because sine waves radiate the least amount of radio power during long distance transmission.On the other hand, a sine wave is expensive to make in an inverter, and many sine wave techniques use heavy, inefficient transformers. The most inexpensive way to make AC is to switch the DC on and off--a square wave. A modified sine wave is scientifically designed to simulate a sine wave in the most important respects so that it will work for most appliances. It consists of a flat plateau of positive voltage, dropping abruptly to zero for a while, then dropping again to a flat plateau of negative voltage, back to zero for a while, then returning to the positive voltage. This pause at zero volts puts more power into the 60HZ fundamental than a simple square wave does, so it is called "modified sine wave" instead of "square wave."Q: Can I use a modified sine wave inverter for my medical equipment?A: For Medical equipment, oxygen generators, etc. talk to the manufacturer of the equipment. PowerStream inverters are never tested or rated with medical equipment, and we don't guarantee that they will work to save your life. For such applications please find inverters that are rated and tested for such applications.Q: What about square wave inverters?A: These old-fashioned inverters are the cheapest to make, but the hardest to use. They just flip the voltage from plus to minus creating a square waveform. They are not very efficient because the square wave has a lot of power in higher harmonics that cannot be used by many appliances. The modified sine wave is designed to minimize the power in the harmonics while still being cheap to make.Q: How do I know if I need a sine wave, or if I can live with a modified sine wave?A: The following gadgets work well with a modified sine wave: computers, motor-driven appliances, toasters, coffee makers, most stereos, ink jet printers, refrigerators, TVs, VCRs, many microwave ovens, etc.Appliances that are known to have problems with the modified sine wave are some digital clocks, some battery chargers, light dimmers, some battery operated gadgets that recharge in an AC recepticle, some chargers for hand tools (Makita is known to have this problem). In the case of hand tools, the problem chargers usually have a warning label stating that dangerous voltages are present at the battery terminals when charging. We would like to add to this FAQ any appliances that you have had trouble with, or had success with, using modified sine wave inverters.Q: Why do I hear buzzing on my stereo when using a modified sine wave inverter?A: Some inexpensive stereos use power supplies that cannot eliminate common-mode noise. These would require a sine wave inverter to operate noise-free.Q: Why don't I measure rated voltages when using a multimeter on my modified sine wave inverter?A. The rated voltage is an RMS (root mean square--they square the value to make sure it is always positive, then average it, then take the square root of the average to make up for having squared it in the first place) measurement. Most multimeters are designed to give correct RMS readings when applied to sine waves, but not when they are applied to other waveforms. They will read from 2% to 20% low in voltage. Look for a voltmeter that braggs about "True RMS" readings.Q: How should I select the right size inverter?A: First add up the power ratings of all the appliances, then buy the next larger inverter! At least that is the simple answer. Note, however, that some appliances, such as table saws, refrigerators, and microwaves have a surge requirement. PowerStream inverters are designed to supply such surges, but since every appliance has its own requirements sometimes you will need to get a bigger inverter than you would otherwise think. Note that the inverter isn't the only consideration when you are pondering the mysteries of start up surges. The battery must also be able to supply the surge power, and the cables must be able to supply the increased current without dropping the voltage too much.Q: How is a microwave rated for wattage?A: When you buy a microwave oven you want to know how intense the microwave field is, not how much the oven draws from the wall. So a microwave oven that boasts 600 watts on the box, will have 1200 watts on the boilerplate in the back. Don't be fooled!Q: Are stereo amplifiers rated the same way?A: Stereo manufacturers are bigger liars than politicians. Some times they use peak output power (milliseconds), sometimes they use power drawn from the wall, but often they just look at the competition's carton front and add 10%. However the truth is available: look at the boilerplate sticker, which has been evaluated by UL.Q: Why do I need such humongous cables to the battery when a small cord takes the AC output fine?A: Power is volts times amps (Watts = V x A). So if you have a lot of voltage you don't need many amps. Roughly you need 12 times as much current from the 12 volt battery as you need from the 110 volt AC outlet. Current is what causes cables to heat up, not voltage. That is why they use thousands of volts in power transmission grids. The thing to do when you have lots of current is to lower the resistance of the cable. The larger the wire the lower the resistance. Think of the cable as a water pipe. A big pipe (wire) can carry more water (current or amperage) with less pressure (voltage), and will present less pressure (voltage) drop from one end of the pipe to the other.Another consideration is how far the cable has to run from the battery to the inverter. Long cable runs are expensive, either in copper or efficiency, or both.Q: Why would you use a 24 volt inverter instead of a 12 volt inverter?A. At a given power rating a 24 volt inverter will need half the current as a 12 volt inverter. This makes the entire system more efficient, and since high current transistors are expensive, the inverter will be cheaper.Q: Should I use aluminum wire, or must I use copper?A: Aluminum is cheaper and lighter, but it also has higher resistance for a given gauge and is more difficult to connect to. If you are an expert in such things, or know one, and need the advantages that aluminum gives, go ahead. If not, why not use the best conductor, copper? (Silver is slightly better, but it is cheaper to use a larger diameter copper). To compare the two look at our web page http:/www.powerstream.com/Wire_Size.htm .Make sure to use good insulation, 90°C rated or better. Also, running two sets of parallel wires instead of one can cut down on the wire heating due to more surface area.Make sure to follow all applicable electrical codes. Inverters must be grounded properly, and treated with respect, since they put out potentially lethal voltage. A lot of smart people have worked for 100 years to develop rules which will keep you out of trouble if followed. These rules are called the national electrical code, and your friend the electrician has it memorized (or knows where to look it up).Q: Should I use a laser printer with an inverter?A: Only if you must. Laser printers use up a surprising amount of power (due to the heated rollers), and will discharge your battery faster than you expect, even on standby. If you do, make sure the inverter is rated for the power of the printer plus computer plus monitor. It doesn't do any good to have your computer brown out as soon as the the printer starts to print. Ink jet printers, on the other hand, use a surprsingly low amount of power.
Why UPS supplies the power that can be utilized to the largest extent when the main supply stable?
There are UPSs made with an automatic bypass switchthat when the main supply is stable bypasses the UPS and connects the device directly to the main supply. However these are more expensive than the kind that always runs power to the the device through the UPS, also the bypass switch is a break before make electromechanical relay. The "transfer time" of such a relay is measured in milliseconds and is often longer than one cycle of the main supply power. Thus when the main supply drops out power is lost to the device for this period before the bypass switch connects the device to the UPS. For some electronics this brief loss of power is no problem, but some electronics (particularly computers) cannot tolerate it.For computer UPSs it is thus generally safer to design them to always power the device from the UPS, not the main supply. Such UPSs are also sometimes called "zero transfer time UPSs".Another issue with UPSs is the shape of the AC waveform they deliver: many early inexpensive UPSs delivered squarewave AC, whereas more expensive UPSs delivered stepped pseudosinewave AC; certain devices (especially those with AC motors in them) could not tolerate this and would not function or in some cases were damaged. Thus the true sinewave UPS was developed, which of course was more expensive and more complicated than the other types. It is always important to buy a UPS that is compatible with the device it will power, false economy here will in the long run be more expensive.
How can we run uninterrupted power supply in parallel?
Uninterruptible Power Supplies (UPSs) can be configured in parallel mode by connecting the output terminals of both UPSs. The capacity and all technical specifications and feautures of the UPS should match with another UPS. The UPS manufacturers ensure the synchronization of all UPSs connected in parallel using bus connectors that serve as frequency, phase, voltage, and current monitoring to maintain the stability of the systems.It can be paralleled more than 2 units which is usually up to 8 units depending on the manufacturer's specification. Before switching on the UPS make sure that all the parameter settings are all the same for the rest of units to be paralleled. If all units are now running, if one UPS fails the protected load should not be affected since there are still some units that can be able to support the entire loads.
How does a computer works in case of power failure?
If there is no power, the computer simply cannot function. There are devices called Uninterruptible Power Supplies (UPSs) that can provide power for a short time after a power outage, by using a large battery.
What are the environmental impacts of UPS - uninterruptible power supplies?
UPSs generally contain lead/acid batteries. The worn-out battery should not be disposed of in a landfill or incinerated because lead is harmful to many organisms. Lead batteries recycle well and you can sometimes get money back for them.
Average strength of a fourteen year old boy?
40-50 push upps, 100 pound bench press for most 14 year olds. im 13 and can do 100 push upss and bench 140 but im a helth freak, but only 4,11 and 120 pounds(pure strenght),
How many watts does a UPS need?
That will depend on the UPS specifications (e.g. output VA rating, efficiency) as well as the load's reactance. There are UPSs with output VA ratings from as low as 100 VA to several hundreds of thousands of VA (this is more than 3 orders of magnitude in equivalent wattage). The higher VA rated UPSs must by the electrical code be wired directly (they cannot be plugged in and they weigh several tons so they can't be moved either) by a licenced electrician. The more efficient a UPS is, the closer the input watts needed will be to the output VA rating, a less efficient UPS will need more watts. The only way you can get a reasonable estimate of the answer to this question is to read the specifications in the manual for the specific UPS you are interested in or are already using.
What is the primary role of an UPS?
Assuming you are referring to a Uninterpretable Power Supply, the primary role of a UPS is to maintain power to a computer or other electronic equipment during a power outage or brown-out. Most UPSs also provide surge and spike protection. Some higher-end models will also do power conditioning and power-failure PC shutdown.
Which types of uninterruptible power supplies use the battery as the primary source?
Practically every uninterruptible power supply (UPS) uses batteries, but the UPSs that use them primarily are those for low power devices, like computers. Obviously, you wouldn't want a UPS for an entire city to be run on batteries, so that's where other options, like diesel generators, come in handy.
Can you keep the UPS near the computer monitor?
It should be OK. A UPS may radiate some electromagnetic energy, especially a magnetic field, if it has an iron core mains transformer. This might affect a CRT monitor, but you would see the effect pretty quickly - the image on the screen would distort or show convergence errors ("rainbow edges"). UPSs can be noisy, so this might be another reason to put it under the desk or somewhere else out of the way.
How many people still use DC electricity?
If you are talking about DC power line electricity, it is no longer used in homes or industry however many electric rail systems (e.g. trolley, highspeed trains) use DC electricity as DC motors have several advantages for motive power compared to AC motors. A few very long transmission power lines use DC electricity, but the DC is converted back to AC electricity before being distributed to customers. Certain industries (e.g. electroplating, aluminum refining) use DC internally, but they use large rectifiers to convert 3-phase AC to DC electricity when it enters the plant.If you are talking about electronic equipment (e.g. radios, computers, cell phones) these usually contain batteries. Everyone using battery powered electronics (or lighting, toys, cars, UPSs, etc.) uses DC electricity, because that is the way batteries provide electricity.Nearly everyone uses DC electricity, in battery powered devices.
Can you use a forever stamp on mail to Europe?
yes, you can-- they are worth 42 cents each and the rate to Europe is 94 cents for up to one ounce. So you would two of them plus ten cents (or more )worth of other stamps.You use three forever stamps, but would be wasting 32 cents.After May 11, the rate goes up to 98 cents, but the forever stamps will be worth 44 cents, so 2 of them plus ten cents will still work. They make 10 cent stamps, so if you send a lot of letters to Europe you might want to get some to keep on hand.Despite the note below, you can. MY information comes from the UPSS official web site;http://www.usps.com/mailpro/2008/marapril/page8.htmPossibly the rules have changed.No, you cannot. The lack of a face value means they are not valid under the Postal Rules of the Universal Postal Union. The post office can provide valid postage for your foreign mail.
Why does a light bulb explode?
You may have a badly wired house. It can be a bad loose or incorrectly wired part of the house wiring. Sometimes the needed ground is not made. When other circuits are used the household load can put too much voltage on one side of neutral and do damage. Neutral is the centertap of your external power transformer. 220vac (volts alternating current) is center tapped to provide two 110vac circuits to your lights and wall plugs. 220vac for hot water and the dryer. The neutral must be grounded at the residence main breaker box for safety and balanced power. An eight foot copper rod is driven into the ground and the main breaker boxes ground terminal is hooked to it by some hefty wire. The main box is where sub-boxes (other breaker boxes connected to the main one) need to be grounded also. Buy compact florescent or LED lamps to replace the burnt ones. A lot of things can cause bulbs to blow prematurely, excessive voltage, bad connections on your neutral wire, lost tension on spring contact in the center of your socket, but the #1 reason is vibration. Most of the time I that I run into this problem it is ceiling fans but even if it is not install a ceiling fan light bulb in the problem socket and see if that cures your problem. Most people don't know that there even was such a thing as a ceiling fan light bulb but they exist and are designed for ceiling fans and garages where it is likely exposed to higher vibration levels. The vibrations may not come from a ceiling fan but a washer or dryer, slamming doors etc. or just simply the fixture is not mount securely to the ceiling
