Electrical Engineering

poles are not projected outwards

You get a giant explosion. To use it's scientific name, "BOOM!". Do not stick a fork in it under any circumstances. Ze little cartveels vill explode in your face. It vill however be funny for your friends to vitness.

Easy solution

1. Convert numbers to base 10

2. Add

3. Convert result to base n

To add without converting, follow these steps Adding 2 Numbers in a Different Base:

A. Adding numbers in a different base is similar to adding numbers in base 10.

1. Add the one's digits first like you would in base 10.

2. If the number is less than the base, write it down. If the number is greater than

or equal to the base, you must carry. So find the remainder after dividing by

the base and write it down (i.e. n MOD b) and to find the number you should

carry, find out how many times b will go into n (i.e. n DIV b).

3. Continue adding the next digits as described in step 2 until all numbers are

added. Don't forget to add in any carried numbers.

4. Note: You must add the digits from the right to left. In other words, add the

ones digit first, followed by the tens digit, and so on.

Ex [1] 143

5

+ 41

5

=_________

5

.

a. 3 + 1 = 4. Since 4 is less than 5, write it down.

b. 4 + 4 = 8. Since 8 is greater than 5, we must carry. 8 Mod 5 = 3.

Write down 3. 8 DIV 5 = 1. Carry the *1.

c. 1 + *1 = 2. Since 2 is less than 5, write it down.

d. The answer is 234.

Ex [2] 222

3

+ 121

3

+ 220

3

=________

3

.

a. 2 + 1 + 0 = 3. Since 3 is equal to 3, we must carry. 3 MOD 3 = 0.

Write this down. 3 DIV 3 = 1. Carry *1.

b. 2 + 2 + 2 = 6 + *1 = 7. Since 7 is greater than 3, we must carry.

7 MOD 3 = 1. Write down 1. 7 DIV 3 = 2. Carry *2.

c. 2 + 1 + 2 = 5 + *2 = 7. Since 7 is greater than 3, we must carry.

7 MOD 3 = 1. Write down 1. 7 DIV 3 = 2. Since there are no

more numbers we can just write down 2.

d. The answer is 2110.

Zero degrees.

You've specified a distance, but no force. Any answer is correct without a force specified.

A conductor

parallel paths are conductors where current direction is same

You measure it with a clamp-on ammeter.

Um. One is hung above your head on telephone poles and the other is ran underground in conduit? Unless you meant something else?

Also burying cable costs ~10 times as much for transmission lines as overhead. It also usually has a lower power carrying capability, since it cannot dissipate heat as readily as an overhead conductor.

To derive a value for thermal coefficient of resistance, I find the resistance R1 at one temperature T1, and the resistance R2 at temperature T2.

I can then express this coefficient as (R2 - R1) / [R1 (T2 - T1)] X 100% per degree.

Example: R1 = 50 ohms at T1 = 20 degC

R2 = 20 ohms at T2 = 500 degC

(R2 - R1) / [R1(T2 - T1)] X100% per deg = (20 - 50) / [50 (500 - 20)] X100% per deg

= - 0.125% per degC

But this assumes the change in resistance is linear. In fact, such changes often happen on a curve. To estimate the form of the curve, at least three temperature:resistance data pairs are needed.

It is something that you will have to look for on ask.com because no body knows w2hat you are talking about

There are different specifications. Is this new oil or used oil? What type of oil is it? There are at least 3 classes of insulating liquids. I will assume that this is for new Mineral Oil such as Diala-A. Here are the minimum requirements from NETA ATS 2007: Dielectric Breakdown (ASTM D877) = 30 kv Interfacial Tension (ASTM D971) = 38 minimum Neutralization Number (ASTM D974) = 0.015 maximum Water Content (ASTM D1533) = 20 ppm maximum Power Factor @ 25C (ASTM D924) = 0.05% maximum Power Factor @ 100C (ASTM D924) = 0.40% maximum Color (ASTM D1500) = 1.0 Again if it is a different class of insulating fluid there will be additional and/or different limits.

by design MICC has a very insulation high resistance. This is measured in Mega Ohms between conductors and between conductors to cable sheath. This high insulation resistance is provided by a highly compressed mineral keeping bare copper conductors apart all within a copper tube called the sheath. Each end of the cable is terminated on site by the engineer to the appropriate length. The termination provides a pot attached the the end of the cable to prevent the ingress of moisture and also a way or providing insulation to the bare conductors. The mineral insulating material in the MICC is quite absorbent so if any moisture is able to get into the cable it will reduce the insulation value of the mineral. Any breach in the integrity of the sheath will allow the cable to breath in moisture and will result in a drop in the insulation value of the cable. The breach can be caused by damage to the sheath by a sharp impact or by age where corrosion to the copper sheath results in a hole. Poorly fitted or damaged terminations can also cause a similar breach and consequent drop in insulation value.

As a temporary measure if the damaged section of cable is identified. Isolating the cable from the power supply and providing gentle heat to the outside of the cable with a hand held hair dryer can often improve the insulation resistance value by gently driving out the moisture.

It will of course be necessary to replace the damaged section of cable or re assemble the terminations as soon as possible.

A: The only way can be possible if the transformer is an isolation type.

Yes, you can put the input into the secondary side. This will create a step-up transformer.

It convert 220v or 115 to -12v and +12v by using many components and step down transformer.

1.IR VALUE.2. WINDING RESISTANCE, 3.HIGH VOLTAGE TEST & 4.inducatance test

Using Fourier Analysis -which is too difficult to explain in this forum.

WE CAN use the balanced modulator

& also the double balanced modulator(DBM)

THANKS.

ASMA

Generators work by changing mechanical energy to electrical energy. It can be done by spinning an armature (one of the electrical components of a motor that contains conductors) through a magnetic field.

Generators are based on the principle of electromagnetic induction. This electromagnetic effect induces voltage and current in the moving conductors.

whta is puncture voltage

The output voltage do not really increase, it is only the meter reading that increase, because not all meters is true RMS meters. If a true RMS meter is used, the output voltage will read the same with or without a capacitor. A value of .2887 approximately have to be added per volt that is measured on an ordinary meter, the reason for this is that a unsmoothed rectified sine wave is not a pure DC voltage it is a series of half cycles that can be beter explained with a sketch http://www.patenttrade.net/rms.htm

mf is ratio of CT ration of meter box to CT ration written on meter.

ex: CT meter box: 30/5, Meter ct ration 1/1.

MF : (30/5)/(1/1)= 6

In a three phase panel a double pole single throw breaker is definatly putting out 220v as two separate 110v circuits that are out of phase with each other. So from one leg to the other its 220v and from either leg to ground its 110v.

By definition it is 220v but it could be used as separate 110v circuits as well. The only way to know how its actually being used would be to open up the sign and see if both circuits are tied into one ballast as 220v or if they split and go to differant ballasts then they are 110v circuits using a common disconnect means.

Being that either way both circuits terminate in the same area they technically both require a double pole single throw breaker.

yes