anti surge system of compressor?
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to reduce air pressure sudden surge
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What do you mean by "unload"?  An air compressor works by taking air and basically compressing it into a tank.  The amount of pressure in the tank and coming out of the lines is controlled by two different valves, the tank pressure valve and the use valve.  Both valves have limits and most equipment states how much pressure they need.  I used a compressor to spray lacquers at work.  The thicker the lacker the higher the pressure I use to make sure the lacquer spreads niceley and doesn't bubble.
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Yes, the surge protectors are needed. If you have a spike of energy which A/C power often gets, it needs to be regulated and your home or office power outlet does not provide that feature. It is simply better to have it than not. Belkin is a good provider of surge protectors for home and office use.
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If you are worried about a power surge in the cable, run it through a surge protector that has coax connectors.
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Look in the operaters manual
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Cops have them too.  Use helicopters.  Require certain high speed models to come with a kill switch like are used on go-cart tracks.  Disabling it would activate a lo-jac type device or ruin the engine.
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Unless you have a surge protector and a backup system, it isn't recommended to leave your computer on. If lightning strikes, it can fry out the electronics in your computer.
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THERE IS A BOOK CALLED "TURBINES,COMPRESSORS AND FANS :BY S .M YAHAYA"IT WILL ANSWER ALL UR QUERIES.
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A power surge can cause multiple drives/devices to fail at once.  Also, if your power supply starts to go out, it can take other components with it.
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Try contacting the manufacturer of the equipment. I can't believe you are taking on this task without professional expertise for a system which is so critical.
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This is to protect the main appliance.  Mostly the three prong socket configuration has one.  Fuse is always for protection, either it is current sense or temperature sense.  anything that will go over the fuse range is enough to bust it and thus avoided further damage to your appliance.
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check the website :  aircompressorsdirect.com
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Invest in a nice surge protector.
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An orifice plate will work but in general it is not a good idea to restrict the flow to the suction of a compressors because it reduces the performance.\n\nIs this a centrifugal or reciprocating compressor? On centrifugal compressors as a part of the surge control system it is not uncommon to use a pitot tube device to see changes in flow rate. A pitot tube has very little pressure drop and since you want acfm on the suction for surge control, it makes sense to measure the flow at the suction rather than the discharge.\n\nFor reciprocating compressors there is very little reason to measure flow on the suction. It is typically measured on the discharge where the pressure is higher and pressure loss from the orifice plate is not as significant.
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Yes, most surge protectors now do have the input and output for a telephone line.  Don't spend too little though on a surge protector, it's worth the investment.
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Fuse is a safety device to shut-off electricity (or more specifically, current) in the loop when excessive load is detected. All fuses have amperage ratings to specify how much current they can handle before they shut-off.
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There are dampers that are designed to dampen the vibrations in a mechanical system. A shock absorber on a car in a good example of this.\n\nThere are dampers that remove or lessen pressure surges in piping systems. Water hammer is an example of a pressure surge.\n\nFinally some types of valves are referred to as dampers. They are common in heating and air conditioning duct work.