0
Electrical Engineering
Electrical engineering is a field of engineering that deals with the study and application of electricity, electronics and electromagnetism.
23,056 Questions
Can Waste Transformer Oil be Regenerated?
Yes, Special Transformer Oil Regeneration System can recycle and regenerate the unqulified transformer oil.
- As is well known the Transformer plays an important role in the generation, transmission and distribution of electrical energy. Under load the transformer, dissipates heat and the insulating oil acts as a coolant as well as an effective dielectric.
Due to the highly hygroscopic nature of the transformer oil, it absorbs moisture from windings, which leads to gradual deterioration of dielectric strength. Also there are some waste impurities, gas contents in the transformer oil which destroy the oil's quality.
Transformer Oil Regeneration System is the most efficient and economical purification system.
Special Transformer Oil Regeneration System is applied to filter various of unqualified insulation oils including aging transformer oil specially for the power which is above 110KV, mutual inductor oil, switch oil and so on. Also it can inject the insulating oil into the transformers on-line.
Transformer Oil Regeneration System owns following Features:
1. Duplex 3D stereo-evaporation, eliminating the liquid water quickly
2. UK G technology by which the trace water that is show chain, such as dissolved water, can be removed effectively.
3. Distinctive removing impurities system filtering through double FH trapezoidal network and absorbing by high polymer without the mechanical power
4. Carbon fiber infrared heating system that can make the oil contains zero sum of ethyne after the treatment
5. Especially applied to vacuum oiling and drying for power transmission equipments which are over 110KV
6. The oil of any grades can be treated on line at the working site.
7. Can be operated both on-load and off-load.
8. Can be operated fully-automatically with PLC controller.
9. this Oil purifier can be made in hermetical, canopy-covering, open and frame style.
Transformer Oil Regeneration System Has Following Advantages:
dewater, degas and removes the impurities more quickly, more completely, and makes the oils limiting voltage-withstand value much higher. As the bridge-type vacuum linking system that can purify and also can be an independent vacuum power supply, this machine can treat the electric insulation devices.
- Contact me for more information if you have any more questions via: kevinnchiang@gmail.com , or call me at 0086-135-2739-0908, or sent message to my MSN ID: new8628@hotmail.com .
- Additional Key Words:..... Transformer Oil Regeneration Systems, Turbine Oil Reclamation Systems, Lube Oil Purifier, Transformer Oil Purification Systems, Hydraulic Oil Filtration Machine, Compressor Oil Recycling Plant, insulation oil purifier, transformer oil purifcation systems, Oil Filtraton System, Oil Treatment Machine, Oil Cleaning System, Oil Recycling Machine, Oil Reclamation Machine, etc...
kevinnchiang@gmail.com, new8628@hotmail.com
Cell: 0086-135-2739-0908
Coil of wire that when carrying an electric current produces a magnetic field?
Your question is unclear. If you are asking whether it produces a magnetic field, then yes it does. If you are asking what the coil is called, then it depends on the function of that coil -it could be a solenoid; it could be a transformer winding; it could be a generator's field winding; etc. You really must learn to ask a proper question.
What is Power plant instrument engineer interview questions?
These are not available for the general public. You can ask someone who has already gone through the interview or look online for sample questions.
It works normally. Well actually there are 380 volts across two lines of a 3 phase AC source, so it should work normally.
For 600V insulation Megger NETA & IEEE recommends:
Test voltage = 1000V
Test Duration = 1 minute
Test Value = 100 Megohm minimum (corrected to 20 degrees C)
Typically you megger conductor to conductor and conductor to ground. Most will not megger for the full minute and it is up to your discretion. Just watch that the resistance continually increases during the test period. If it is decreasing then you should hold the full minute and investigate the reason.
For multiple conductor cables then twist all of the conductors together and pull out one at a time and megger it to the bundle. This will expedite thetesting into as few as tests possible while still thoroughly checking the cable.
Note that test voltage and values are based strictly on the insulation rating and the conductor size is pretty much irrelevent.
What can be used instead of intercom for a small house?
You must learn to yell very loud, which is extremely effective especially for children. This is considered by most to be a better alternative than intercom systems as a method of communication.
What is 47 kilo ohms in mega ohms?
The answer is .047Megohms.
1kilo ohm is 1,000 ohms.
1mega ohm is 1,000,000 ohms.
Just move the decimal over to convert.
What advantage does an electromagnetic circuit breaker have over a fuse?
Four that I know of:
1. Faster acting thus safer.
2. Fuses often spark when they blow and can cause fires.
3. You can reset it once the problem is solved. With a fuse you may have to go shopping to get a new one if you don't have (or cant find) a spare.
4. Idiots can't stick nails or other bits of wire in the space when they can't find a proper fuse!
Cynics also say - they are more expensive which helps electrical manufacurers make bigger profits.
I = E/R
What is Full load college course?
A full-time load is considered to be enrolling for at least 12 credits (semester hours), or more. The average course load is approximately five course on the average of 15 credits per semester. However, it depends on the specific program of study and its curriculum layout. Anything less than 12 credits is considered part-time.
A full-time load is considered to be enrolling for at least 12 credits (semester hours), or more. The average course load is approximately five course on the average of 15 credits per semester. However, it depends on the specific program of study and its curriculum layout. Anything less than 12 credits is considered part-time.
A full-time load is considered to be enrolling for at least 12 credits (semester hours), or more. The average course load is approximately five course on the average of 15 credits per semester. However, it depends on the specific program of study and its curriculum layout. Anything less than 12 credits is considered part-time.
A full-time load is considered to be enrolling for at least 12 credits (semester hours), or more. The average course load is approximately five course on the average of 15 credits per semester. However, it depends on the specific program of study and its curriculum layout. Anything less than 12 credits is considered part-time.
A full-time load is considered to be enrolling for at least 12 credits (semester hours), or more. The average course load is approximately five course on the average of 15 credits per semester. However, it depends on the specific program of study and its curriculum layout. Anything less than 12 credits is considered part-time.
A full-time load is considered to be enrolling for at least 12 credits (semester hours), or more. The average course load is approximately five course on the average of 15 credits per semester. However, it depends on the specific program of study and its curriculum layout. Anything less than 12 credits is considered part-time.
What does 600k- 400k annual mean?
k mean thousand so 600k mean's 600 thousand 400k mean's 400 thousand
Which of these forms of energy can be produced by passing the magnet through the coil of wire?
Electrical energy
How do you tell how many poles a 3 phase 480 volt motor has?
It is based on the RPM of the motor. Use the following formulas for 50 and 60 Hertz. The mathematical formula is Frequency in Hertz times 60 (for seconds in a minute) times two (for the positive and negative pulses in the cycle) divided by the number of poles. For 60 hertz, the formula would be, 60 x 60 x 2 = 7,200 no load RPM divided by the number of poles will give you the nameplate RPM of the motor. eg from above formula 7200/2 pole = 3600 RPM, 7200/4 = 1800 RPM, 7200/6 = 1200 RPM
Parallel with any component like R or C or L or any 2 nodes of the circuit. Feel free connecting VMs anywhere in your circuit keeping in the proper Range/scale selector/AC-DC selector . That makes no damage
1. The orientation giving the maximum magnetic flux would be 90 degrees or perpendicular to the magnetic field because that gives the maximum amount of magnetic field lines able to pass through the area of the coil. The greater density of field lines gives a greater magnetic field. The orientation that would give a magnetic flux of zero is the plane of the coil to be parallel to the magnetic field, making no lines pass through the coil and thus no flux.
What is the basic function of a megger?
On the whole megger testing is non destructive. What happens is a DC voltage is applied to the device or winding under test. It is an insulation test to see is the insulation has been injured in any way to cause a short circuit when normal power is applied to it. On my megger there are 3 ranges 300V, 750V, and 1000 volts. Applying the proper voltage is essential to not damaging the device you are testing. Working voltages up to 240 volts should use the 300 range. Working voltages up to 600 volts use the 750 volt range and working voltages above 600 use the 1000 volt range. As you can see if you used the 1000 volt range on a device that had a working voltage of say 24 volts you could damage the insulation just by testing it. So meggering a device is non destructive if you use the tester as its instructions tell you to.
<><><>
For the sort of standard text-book stuff being asked in this question it's much better to use the excellent Answers.com and other well-known "reference" or "encyclopedia" sites. You will also see very useful photos and diagrams to help to explain the answer.
The actual answers on WikiAnswers must currently be text-only and, for other information such as pictures, photographs, etc., separate links must be added below the answer.
For instance, the Related Link to Answers.com's site - shown below the Related Questions for this answer - shows a circuit diagram, as well as a good description, of a "megger" instrument.
WikiAnswers is not ideal for use as a "reference site" or an "encyclopedia site" because you have to wait until someone either writes a special answer to your new question or merges it into an existing question asking about the same thing.
WikiAnswers is part of the Answers.comTM network.
What are the advantages of a rack mounted plc?
they have expandable memory and they come in cards which just slot into a mounted part
What is the peak voltage of a 240 VRMS sine wave?
To calculate the peak voltage of an RMS voltage in a sine wave simply multiply the RMS voltage with the square root of 2 (aprox. 1,414) like this:
240 x 1,414 = 339,4 V
RMS x sqr.root of 2 = peak voltage
What appliances can you find a LM317 Chip in?
LM317 is a variable-output voltage regulator. I would expect to find it in small home appliances with electronic controls, portable radios, car electronics, cell phone chargers, etc.
If you need to find the chip somewhere to do some repairs, you can probably ask a manufacturer to send you a (free) sample. Otherwise, you can buy small quantities online from places like digi-key.
the function range switch is not set on a high enough scale
Ford 3000 tractor 1975 ignition wiring diagram maybe whole tractor wiring diagram?
I bought a copy of a manual on Ebay (public domain I assume) that was full of diagrams and schematics of every aspect of my Ford 3000 tractor. I highly recommend if that dealer is still on Ebay. Sure has saved me some money by having it.
What type of oil is used for a 2003 Hyundai Tiburon GT V6?
The answer is use 10W-30 for engine oil in the 2003 Hyundai Tiburon GT.
How do I rewire a lamp to take a higher wattage bulb?
Don't - You replace the wires just as you would for the original wiring but you must use a lower guage wire size - meaning a thicker wire. The AC cord for lamps in the past 30 years was at least good for 500 watts. Don't forget that the wattage rating my not be limited by electrical considerations but by thermal limits. A larger bulb may melt or burn the fixture itself, not just the socket.
