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In v curves armature current decreases in under excitation and increase in overexcitation as fielcurrent increases and armature current is maximum at unity power factor.The power is maximum when load angle is equal to impedance angle.A linear motor is a essentially a multi phase
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What is a French Curve used for?
It is used for mechanical drawing of curves and has applications in such things as weather maps, etc. unlike slide rules they are still currently manufactured by among others, Ko-Hi-Noor of Paris. they have various engineering applications, as stated,
What is the calibration curve of orifice meter?
The calibration curve for an orifice meter will depend on the size of the orifice, the size of the pipe and the pressure loss over the meter. Typical calibration curves have pressure (or head) loss on the vertical (y) axis and flow rate on the horizontal (x) axis.
How do locomotives takes turns without differentials?
Railway lines only make really wide and gentle curves, so there's really very little scrubbing to begin with. On top of that there's not that much friction between the steel rail and the steel wheel, so it's fairly easy for one wheel to slip a little.
What techniques are used to file flat square and curved surfaces and achieve a smooth surface finish?
Techniques used to file flat square and curved surfaces to achieve a smooth surface finish, include using sweeping motions that follow the flat squares or curves to ensure the file is level. You will also need to secure the work place to ensure accuracy.
Can sheet metal be bent by hand?
Yes, sheet metal can definitely be bent by hand, but it depends on a few factors: Thickness: Thinner gauges of sheet metal (like aluminum flashing or very thin steel) are relatively easy to bend with just your hands or simple tools like pliers. Type of Metal: Softer metals like aluminum and copper are much easier to bend than harder metals like steel. Size of the Sheet: A small piece of sheet metal is much easier to manipulate than a large sheet. Desired Bend Radius: Sharp bends are harder to achieve by hand than gentle curves. For simple bends in thin, soft metals, you can often get away with using just your hands, a sturdy edge (like a table), or basic hand tools. However, for thicker metals, larger sheets, or more precise bends, you'll likely need specialized tools like a sheet metal brake. ADH MACHINE TOOL might have some content relevant to your specific needs.
What is v curve and inverted v curve of sychronous motor?
what are v and inverted v curves of synchronous motor
What are v and inverted v curves?
V Curve- Excitation vs Armature currentV curve is the graph showing the relation of armature current as a function of field current in synchronous machines. The purpose of the curve is to show the variation in the magnitude of the armature current as the excitation voltage of the machine is varied.Inverted V Curve- Excitation vs Power FactorThe synchronous motor "V Curves" shown above illustrate the effect of excitation (field amps) on the armature (stator) amps and on system power factor. There are separate "V" Curves for No-Load and Full-Load and sometimes the motor manufacturer publishes curves for 25%, 50%, and 75% load. Note that the Armature Amperage and Power Factor "V" Curves are actually inverted "V's".Assume it is desired to determine the field excitation which will produce unity power factor operation at full motor load. Project across from the unity power factor (100%) operating point on the Y-Axis to the peak of the inverted Power Factor "V" Curve (blue line). From this intersection, project down (red line) from the full-load unity power factor (100%) operating point to determine the required field current on the X-Axis.In this example the required DC field current is shown to be just over 10 amps. Note at unity power factor operation the armature (stator) full-load amps is at the minimum value.Increasing the field amps above the value required for unity power factor operation will cause the machine to run with a leading power factor, while field weakening caused the motor power factor to become lagging. When the motor runs either leading or lagging, the armature (stator) amps increases above the unity power factor value.
What is compounding curve in synchronous motor?
The operation of a synchronous generator delivering power to a constant power-factor load is demonstrated by means of compounding curves. A compounding curve shows the field excitation needed to maintain rated terminal voltage as the load is varied.
What are the characteristics of breaker trip curves and how do they impact the operation of electrical circuits?
Breaker trip curves show the relationship between the amount of current flowing through a circuit and the time it takes for the circuit breaker to trip. The characteristics of these curves, such as the trip time and current rating, determine how quickly the breaker will disconnect the circuit in case of an overload or short circuit. This impacts the operation of electrical circuits by providing protection against damage from excessive current, ensuring safety and preventing fires.
What are indeference curves?
Curves is monosyllabicPresumably no curves at all.3 curvesThoracic and sacral curves
What is a curve in highway engineering?
curves are provided in the change of direction of the alignment. It provides in smooth movement of traffic.
What are curves on a polygon?
Polygons do not have curves.
What shapes have curves?
What shape has curves
Two ways to change tonal range?
You can change tonal range either through Levels or Curves in Photoshop, in Levels drag slider below Histogram and in Curves click somewhere on curve to add point then drag point up or down.Answers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.comAnswers.com
What is sinusoid?
What is a sinusoidal wave? This is a wave that appears to have curves. AC current/voltage. If you see a wave on a ossiloscope of what our AC (Alternating current) mains voltage that will be the answer to the question. DC (direct current) does not appear to have the same qualitys
Why is there a need for highway curves?
for safety purpose and the curves are design for speed on which curves are provided.
What are the characteristics and significance of isothermal curves in thermodynamics?
Isothermal curves in thermodynamics represent processes that occur at a constant temperature. These curves are significant because they help us understand how heat and work are exchanged in a system without a change in temperature. By studying isothermal curves, we can analyze the behavior of gases and other substances under specific conditions, leading to a better understanding of thermodynamic processes.
