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Actually surge impedance is present in a transmission line due to the capacitance of transmission line. Now this capacitor attends the reactive power of the transmission line to energise its magnetic flux. now due to the flux the impedance will increase and the power is reactive too. due to the impedance loss is more.
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What is surge capacitor and how it will works?
A surge capacitor is used to mitigate (minimize) voltage surges. Capacitor impedance can be modeled as 1/jwC, j = i = imaginary value used in vectors, w is the frequency, and C is the capacitance. A fairly small capacitor on the input to a power supplying circuit will have a large impedance, and so will impact the circuit operation very little due to the low power frequency. Surges are high frequency. When a surge occurs, the capacitor impedance appears much smaller to the high frequency surge, effectively shunting the surge energy to ground; this minimizes the surge with respect to the protected circuitry.
What charectristics an electric circuit exhibit under max power transfer condition?
Max power transfer takes place when the total load impedance is equal to the source (power supply) internal impedance.
What are the advantages of Transformer coupling method?
transformer coupling ensures maximum power transfer is obtained even if the output impedance is not equal to the load impedance
Why is energy lost in power transmission lines?
Increase the voltage in the lines.
What is the ratio of apparent power to true power?
The ratio of apparent power to true power is called 'admittance', expressed in siemens. Admittance is the inverse of impedance.
What is surge capacitor and how it will works?
A surge capacitor is used to mitigate (minimize) voltage surges. Capacitor impedance can be modeled as 1/jwC, j = i = imaginary value used in vectors, w is the frequency, and C is the capacitance. A fairly small capacitor on the input to a power supplying circuit will have a large impedance, and so will impact the circuit operation very little due to the low power frequency. Surges are high frequency. When a surge occurs, the capacitor impedance appears much smaller to the high frequency surge, effectively shunting the surge energy to ground; this minimizes the surge with respect to the protected circuitry.
What is surge impedence?
Usually associated with switching power supply when dormant to active the input impedance can change dramatically until-operating normally
How to distinguish between characteristic impedance and input impedance?
The characteristic impedance or surge impedance belongs to uniform transmission lines.In electronic gears we use voltage bridging, that is a relative low output impedance to a higher input impedance. Usualy the input impedance is more than ten times higher then the output impedance.An input impedance is called also a load impedance or an external impedance.An output impedance is called also a source impedance or an internal impedance.
What is the difference between spike and surge in electrical systems?
Surge suppressor, as name suggests suppresses and regulates the voltage and makes the power constant in a case of a spike or surge. While a protector simply detects the surge and turns the unit off. Suppressor is good for things like computers, where you don't want to keep turning on and off.
How does surge impedance effect on transmittion line?
The SIL=(KV LL / Zo), where the V(LL) is the receiving end voltage in kV and Zo is the surge impedance in ohms. when the line is loaded over its SIL, it behaves like a shunt reactor - absorbing Mvar from the system, and when is loaded less its SIL it behaves like a shunt capacitor, supply Mvar back to the system. So to increase the Surge Impedance Loading (SIL), we need to decrease the the surge impedance of the line, and that can be done by introducing series capacitors (capacitors in series with the transmission line) or shunt capacitors (capacitors in parallel with transmission lines), which means providing Mvar to the system and reducing the Mw. hopefully that helps
Another name for power surge?
Staying power is another term that can be used in place of power surge.
What is the present tense of the word surge?
'Surge' is the present tense. 'There is a power surge!' Past tense 'Surged'. 'The power surged and caused a black-out.' future tense 'will surge.'
What is meant by apparent impedance?
You may be mixing up 'impedance' with 'apparent power'.Impedance is the vector sum of an a.c. load's resistance and reactance, and is expressed in ohms. Apparent power is the vector sum of true power and reactive power, and is expressed in volt amperes.Apparent power is also the product of the square of the load current and the impedance of the load.
What are the methods to improve the surge impedance loading of transmission lines?
By increasing Vr,Reducing in series inductance,increase capacitance
The usual value of the surge impedance of a telephone line is When a piece of copper and another of germanium are cooled from room temperature to 80 K then the resistance?
The usual value of surge impedance of a telephone line is 75 ohmsBy: Somorjit LukramTelecom Technical Assistant,NE-II Telecom CircleBSNL Imphal Manipur SSA
When was Power Surge - water ride - created?
Power Surge - water ride - was created in 1992.
What is the opposite of power cut?
A power cut is when the power suddenly goes out or gets shut off. The opposite of this would be a power surge, which is a sudden surge of power.
