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Why an alternator do not operating near the knee of its saturation curve?
Wiki User
∙ 10y ago
Efficiency drops off rapidly as you approach the knee of the saturation curve as energy is converted to heat rather than electricity.
Wiki User
∙ 10y ago
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Why dc voltage increased less rapidly as the dc current increases at three phase alternator?
if you mean in your question Why the generated voltage (AC voltage) increased less rapidly as the dc current increases at three phase alternator? the answer is: because the magntic material that used in the 3 phase alternator will reach to satruration case of producing the magnatic flux so will happen a knee saturation curve in (I dc) versus (E ac) curve. Engr. Emad
Which former prime minister of India had his knee replaced by an artificial knee?
Atal bihari vajpayee
Will metal knee implants used for knee replacement surgery interfere with recreational metal detecting?
Unless the knee(s) are directly above or below the detector's coil (which should not happen) there's no reason they would interfere.
How do you say Here you come in Creole?
me n wap vini [pronounced: meh/ wap/ V-knee ]
How do you knee down in the end zone on madden nfl 11 on PS3?
Before you catch the ball, press triangle, then when the player gets the ball, he will automatically take a knee. But the player doesn't take a knee right when he gets the ball, it takes about a sec.
Why dc voltage increased less rapidly as the dc current increases at three phase alternator?
if you mean in your question Why the generated voltage (AC voltage) increased less rapidly as the dc current increases at three phase alternator? the answer is: because the magntic material that used in the 3 phase alternator will reach to satruration case of producing the magnatic flux so will happen a knee saturation curve in (I dc) versus (E ac) curve. Engr. Emad
Why the alternator do not operate near the knee of its saturation curve?
Actually, alternators (synchronous generators in other parlance) are normally operated slightly saturated by design. If they were operated completely unsaturated, the machine is not being used to its full capability. We don't attempt to operate them beyond the knee, because the losses increase significantly, and the output voltage & current are distorted. It is important to note that there are two different windings to consider when discussing saturation. The DC field (rotor) winding is usually operated somewhat in the saturated region. The AC armature (stator) winding is operated near - but below - the knee to avoid output distortion.
When is the Op-amp said to be working in its linear range?
When the slope of the output/input is a straight line, before the knee point. The knee point is where the slope dramatically changes from the linear region to saturation.
How do you perform no load magnetizing current measurement of transformer?
I am sure there is more than one way of doing this but what I am currently implementing in my own study of I_mag is the following: At no load perform an over excitation test where you vary the input voltage from 0 V and monitor the current flowing through the primary windings of the transformer. Over-excite the transformer until the rate at which current, I_in increases in the primary windings is relatively larger than the change in Vout , across the secondary windings (this is the point of saturation). Plot your results of voltage Vout (y- axis) against current I_in (x-axis) and you should come up with a characteristic B-H curve. (Remember that the B field is proportional to voltage and the H field is proportional to current from magnetic circuits theory) You are then to decide which point on your curve you will regard as the 'knee' point or the point at which the curve starts to deviate from the linear region. This 'knee' point will correspond to your I_mag. While I_in is not necessarily equal to I_mag at no load, at the knee point on your curve these two currents will be approximately equal.
Knee pont voltage- briefly distinguish?
The knee point voltage of a CT is the voltage at the "knee" of a I-V characteristic (if you increase voltage, and plot this voltage with respect to the current flow, you will see a logorithmic type response). The knee is usually specified as 10% distortion (ie, the voltage is 10% less than you would expect relative to the current flow). beyond the knee point, the CT is considered in saturation. This applies to amplifiers / transistors as well as CTs. Transistors used as ampifiers are operated in the "linear region", or the region below the knee point of that particular transistors I-V characteristic.
What is knee poit volt and what is c t saturation?
It is the maximum voltage across the secondary terminals beyond which a CT will saturate when it is loaded.If the CT gets saturated,the ratio of primary current to the secondary current will not be to the designed value.
Is there a fuse that can knock out the alternator on a 1990 Prelude SI Where is it?
Actually, Honda Preludes are one of the few cars that have alternator fuses. It's either in the fuse compartment under the hood or by your left knee when you're in the driver's seat. Mine blew last year and i replaced the whole alternator only to find out all I needed was a fuse. Good luck!
Characteristics of curve of an ideal diode with diagram?
0V forward bias knee voltage0 ohm forward bias resistance0A reverse bias currentinfinite ohm reverse bias resistanceno parasitic capacitance or inductance
What is a medical misadventure?
It is called operating the wrong treatment or get the wrong medicine for the patients. Causing secondary injuries and deaths of patients ( eg, Removing a dead cell part from the patients’ brain but killed the patient by accident ) And in China, it wi send a doctor to prison for 3-8 month.
where can i get knee suport for my knee?
You could get knee support for you knee at any pharmacy of sporting store. Just look for a knee brace. Knee braces are great because they will support your knee and they are cheap.
Knee flexion is when the knee is bent?
Yes, and knee extension would be when the knee is straight.
What is the verb of knee?
There is no verb of knee but there is a verb or verbs for knee e.g.bendtwistThe verb "knee" has long been used and means to kick someone with your knee.
