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What is the function of Variac?

Variable auto transformer or Variac also has the same function as regular transformers but handle lower voltages. The Variac is equipped with an automatic switcher to automatically step the voltage up or down.It is a round power transformer with a sliding contactor which you attach 110 volts Ac to it's input terminals and can adjust the output connector voltage contacts from about 2 volt to 140 volts. Very useful in design and testing things. They do have a current limit rating so make sure you have one that will supply your highest current need.


What is the basic shape of a start capacitor?

If you mean run capacitor, as in the run capacitor for an AC motor, it is usually a round or oval cylinder.


Does it matter which way round a resistor is connected in the circuit?

No it doesn't


What is the significance of resonance in electrical and electronics circuits?

circuits go round


What is CT burden in electrical engineering?

CT (current transformer) Burden is the maximum load that the CT secondary can drive (e.g. meters or protection relays) Why do you care about burden when ordering current transformers? The burden is the termination impedance of the measuring instrument. The measuring instrument can be an analog or digital energy meter, a data logger or a recorder. All instruments that use a current transformer to measure line current must terminate the CT with a resistance (impedance in same case which means there is some inductance involved). A CT supplier should be given the burden when ordering. Technically, the total burden for a CT is the internal winding resistance, the connecting lead resistance and the measuring instrument input resistance. Some Ct's are installed a long distance from the measuring instrument and the connecting leads can have a resistance as much as 0.002 ohms per foot (both ways because the current makes a complete round trip). This resistance will cause an error if not taken into account.

Related Questions

Types of enameled aluminum wire?

enameled round aluminum wire enameled flat aluminum wire enameled square aluminum wire


What is cprn ammunition?

Copper Plated Round Nose


What is the value of Uncirculated Statue of Liberty Copper Round?

$1,000,000.00


What is the weight of a 24foot aluminum round swimming pool?

To determine the weight of a 24-foot aluminum round swimming pool, we need to calculate the volume of the pool first. The formula to calculate the volume of a cylinder (which the pool resembles) is V = πr^2h, where r is the radius of the pool (half of the diameter) and h is the height (which would be the depth of the pool). Once we have the volume, we can multiply it by the density of aluminum (2.7 g/cm^3) to find the weight in grams. Finally, we can convert the weight from grams to pounds if needed.


What is 37.672 as a whole number?

To convert this to a whole number you have to round it - in this case it would round to 38.


Where can I shop for round patio sets online?

I've done my research and found a beautiful black aluminum round table with black aluminum chairs for a decent price, its called southern patio, look it up, you will find it


How do i convert round 14mm into a round US measurement?

14 mm, rounded to the nearest whole number is 1 inch. However, it is really just a little over half an inch.


Aluminum Awnings?

form_title= Aluminum Awnings form_header= Install an aluminum awning with help from pros. What is the square footage of the area?*= _[50] What is the climate in your area?*= _[50] Will the awning be up year round?*= () Yes () No


How does a 5' round table convert into 100 square feet?

It does not.


How do you convert 17.73 into a fraction?

you can round it then put it over 100


What is the meaning of YRY cable?

Yry means copper round armoured cable


Convert 429.24 to the nearest 10 pounds?

To convert 429.24 to the nearest 10 pounds, you would round it to the nearest multiple of 10. Therefore, 429.24 would round to 430.