High Quality Variable-frequency drive-lx3100_01

High Quality Variable-frequency drive-lx3100_01 System 1

High Quality Variable-frequency drive-lx3100_01

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Supply Capability:: 10 unit/month

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System description and operation

VFD system

A variable-frequency drive is a device used in a drive system consisting of the following three main sub-systems: AC motor, main drive controller assembly, and drive/operator interface.

AC Motor

The AC electric motor used in a VFD system is usually a three-phase induction motor. Some types of single-phase motors can be used, but three-phase motors are usually preferred. Various types of synchronous motors offer advantages in some situations, but three-phase induction motors are suitable for most purposes and are generally the most economical motor choice. Motors that are designed for fixed-speed operation are often used. Elevated-voltage stresses imposed on induction motors that are supplied by VFDs require that such motors be designed for definite-purpose inverter-fed duty in accordance with such requirements as Part 31 of NEMA Standard MG-1.

Q: Hey, I am starting my first year in university taking a first year general engineering program. I want to get into bionics and I intend to take bio medical engineering in graduate school. However, I'm not sure which path of engineering I should take to get to my goal. I am aware there is a biomedical degree I could get for my undergrad, but I've heard that a ME or EE degree is better as they allow for more job options as well as allow a chance to be in the biomedical field. I'm confused on which field of engineering I should take to get a better opportunity to work on bionics in the future. Mechanical would appear to be the better choice but the body works with electrical potentials and all that and that seems to fall under the EE catagory. **** also how does the two compare in difficulty?: I'm in EE and it's fairly difficult. I hear it's one of the harder ones (according to other engineers), but I enjoy it. It's still not TOO hard. I think that both are fairly important, but I believe that presently the big issue is interfacing with the nervous system/brain, so I might lean toward electrical. But then again, the bionic part itself is mechanical, so I think it just boils down to personal preference.

Q: I am going to be starting college soon and I would like some input to these two engineering majors. I know I want to pick one of these but I dont know which. I love building things but I also love tinkering with computers and technology. I've read that ECE has a better job outlook as well as a better salary. I think I might like ME because of the hands on although i think alot of it is designing on computers.[. I know I have time to decide in college. Any Help/Opinions??: In terms of jobs, opportunities, money they all are basically equal. The question is what type of problems do you like to solve. I went into Electrical because I aced those chapters in high school physics. Today I solved several problems. I had one phone conference. Help plan a project, work that was to be done, material needed, key people. I made several follow up phone calls to see where key equipment and what calculations were completed. I reviewed a arc flash study, spot checked by hand a few of the computer calculations. Programs a great, but garbage in garbage out. About a month ago I was out in the field, and my friend Chris had a problem. Chris may be a mechanical engineer, but he is a real motor head. Chris is an expert on rebuilding 50 year old electrical equipment like 15kv breakers. This breaker would not open, and it was stuck so you could not unplug it. Chris injected lubricant into the socket, and had the men rotate the coupling by hand so the lubricant (special lubricant that Chris had to specify and buy) would penetrate. The were then able to unplug the breaker for the first time in 30 years. Chris then had to figure out what was wrong with this complex piece of equipment that can interrupt a 25,000 amp fault in 5 milliseconds. It turned out some grommets were worn. Chris replaced the grommets with ones he had specially machined. Chris then had to tune everything up so the breaker could interrupt a 25,000 amp fault in 5 milliseconds. The only other engineers who can do this are old enough to be Chris's dad, or granddad. These are some of the things real engineers do.

Q: Especially from the U.K? I wanted to buy some weighing scales for like ?6, cos like I noticed you can resell them over here in the U.K for like ?50, or are these fake?: the us is in a recession; NOTHING should be bought from China. also, China is a COMMUNIST nation.

Q: i pods,cameras,nentendos, ect: I can say from personal experience that the above answers are wrong in places, 2 different airlines had no problem with wireless gaming between Nintendo DS, we made sure we checked first. Plane didn't fall out the sky either.

Q: i replaced my home theater system thinking it was busted but when i recieved my new one it still had the same buzzing sound i noticed the buzz is in the bedroom too: It sounds like somewhere in your electrical you either have a bad ground, or there is a florescent lamp or some other piece of electrical equipment causing the noise. Surge protectors will only help with an electrical surge, a power conditioned is what is used to remove noise from electrical lines. Check the different electrical equipment in the house by turning things off or unplugging them and check if the noise goes away, if not it could be in your electrical system or some kind of outside interference. If you still issues purchase a surgex power conditioner and that should take care of your issue.

Q: At hwy 5 and 380 there is a bunch of large trailers,cars, and production equipment. What is being filmed there?: I am so glad someone was able to get the info. Well I guess no Bill Smith's in the morning. Thanks for the info.

Q: i need it pretty soon for my hw and if you dont mind can you explain what the process is thanks and keep it simple: Input is the source or something acted upon. Like the thermostat in the ac or heater system would be the input - telling the rest of the circuit that the temp is too low, therefor turn on the heat (or turn off the ac).

Q: I'm a physics students and often come up with seemingly stupid questions I can't really find an answer to. If the human body acts as a resistor of around 100 kilo-ohms or more, how is it that I could die by grounding myself with the hot terminal of an electrical outlet?I understand that the average current flowing through me is the product of RMS-voltage over resistancebut this value doesn't seem NEARLY high enough to do any damage much less for me to detect.Thanks!: Mr. C. has an excellent answer. I might also add that as an electrical worker I find it very important to make sure that when I work with electrical circuits and safety equipment that I try and eliminate a flow path from live to ground that can pass through my heart area. We always use safety equipment and follow procedure but at times you have no choice but to get very close to energized exposed circuits. They can and do bite. I have been known to take an extra step and insulate exposed energized areas that are near my legs when I am working with energized circuits above my waist.

Q: I just recently bought a router that was recommended to me, Linksys WRT160N V3. I followed all the steps to connect and it works. the problem is (and i measured) i walked 34 3/16 feet away into my room and boom. no connection, and my laptop, nor my ps3 can find the router. the only thing in the way of my router and my equipment is 2 walls and a bathroom (yes a small apartment). did i buy a crappy router or is there a way to increase the range for this particular model, because i feel like i got ripped off. thanks for the help.Also i was thinking of maybe getting netgear instead, everyone else seems to think it's good i just don't have the cash. thanks for the help.: Drill a big hole on your wall. Get a metal/magnet detector. Scan it on your wall and next to your router. There might be some kind of object inside the wall interfering with your router.

Q: I am planning to buy a big guitar amp from america and you dont want to mess around with something as powerful as that so i want to know is there suitable adapters out there for such a job? because i heard that some electrical equipment from America will eventually burn out if you use it in Ireland!!help!?!?!: As long as you get a proper adapter that can handle the load, you should be fine

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