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No load conditions on lines with large amounts of capacitance will cause the voltage to rise. This is similar to if a cap bank was installed at that location. I'm not sure how much capacitance is really involved at MV; I've never seen this to be a problem. Usually at these voltage levels, the step down Transformers have on load tap changers, and can adjust for this.
This is often a problem on EHV lines (230kV and above). On these lines, large inductors are used to counteract the capacitance of the line.
What else can I help you with?
What is the effect if capacitance in transmission line is high?
higher phase shift lower impedance
What is the effect of capacitance at high frequencies?
A: Is the same as low frequency except it becomes a predominant factor.
What is the effect of miller capacitance in CB configuration?
Miller capacitance in a common-base (CB) configuration can significantly impact the amplifier's frequency response. It effectively increases the input capacitance due to the feedback from the output to the input, which can lead to reduced bandwidth and increased response time. This effect can limit the high-frequency performance of the amplifier, making it essential to consider Miller capacitance in the design and analysis of CB amplifiers.
Why the 3 phase of high voltage conductor or cable transposed?
3 phase cable is transposed to minimize the effect of leakage/capacitance current.
What is the stray capacitor?
Stray capacitance is undesired capacitance. Any electronic component (wires, resistors, etc.) has SOME capacitance; at high frequencies, this can become significant, becoming a problem for circuit design.
What is the effect of capacitance in high frequency circuits and how it is getting added?
First, capacitance is the resistance of something to a change in voltage. And capacitance exists anywhere there is a conductor that is insulated from another conductor. With that definition, anything has capacitance. And that's correct. It is also the key to understanding the capacitance in high frequency (radio frequency or RF) circuits. The fact that a circuit had conductive pathways and component leads and such means that there is a lot of little bits of capacitance distributed around the circuit. The capacitance is already there; it isn't "added" later as might be inferred. Normally, this bit of capacitance isn't a problem. But at higher and higher frequencies, it is. Remember that the higher the frequency of an AC signal, the better it goes through a given cap. So at higher and higher frequencies, the distributed capacitance in the circuit "shorts the signal to ground" and takes it out of the circuit. The RF is said to be coupled out of the circuit through the distributed capacitance in that circuit. The higher the frequency a given circuit is asked to deal with, the more signal will be lost to this effect. It's just that simple. Design considerations and proper component selection minimize the distributed capacitance in a circuit.
Why ordinary diodes dont work properly At high frequencies?
Because of stray capacitance. At very high frequencies, the inter-electrode capacitance has a low enough impedance that the diode no longer cuts off when reverse-biased, there is still significant conduction via capacitive coupling. High-frequency diodes are constructed so as to minimize this capacitance.
What is meant by stray capacitance?
ANSWER Stray capacitance is the capacitance in a circuit not caused by capacitor components. There is a small capacitive effect, often on the order of a few picofarads, between leads of ICs, traces on a PCB, wires in a cable, the power and ground planes in a PCB, etc. In high-speed circuits, stray capacitance can be enough to completely change the operation of a circuit -- even to the point of keeping it from working as designed. Note that capacitor "components" can include PCB traces specifically designed to act as capacitors.
What does not limit current flow in a circuit - capacitance - high conductor resistance or longer conductor?
Of the three choices, capacitance does not limit current flow in an AC circuit.
What is effect of increasing capacitance of starting capacitor?
Increasing the capacitance of a starting capacitor in an electric motor can enhance the starting torque and improve the motor's ability to start under load. However, if the capacitance is too high, it may lead to excessive current draw, increased heating, and potential damage to the motor or the capacitor itself. Additionally, an oversized capacitor can result in a longer starting time and may affect the motor's overall efficiency. It's essential to choose the appropriate capacitance based on the specific motor requirements for optimal performance.
Why gate capacitance is used?
Gate capacitance is used in electronic circuits, particularly in field-effect transistors (FETs), to determine how quickly the gate can respond to changes in input signal voltage. It plays a crucial role in defining the switching speed and frequency response of the device, as it affects the charging and discharging times of the gate. Additionally, gate capacitance influences the overall input impedance of the circuit, which can impact signal integrity and power consumption. Understanding and managing gate capacitance is essential for optimizing circuit performance in high-speed applications.
Modern capacitors which have high capacitance in small size use a dielectric of?
mylar
