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400KV transmission line surge impedence loading is depent upon the conductor type but its arount 600mw
400KV transmission line surge impedence loading is depent upon the conductor type but its arount 600mw.Permissible Line Loading as per CEA Standards
+/- 500 kV HVDC bi-pole line=Pole Capacity X Number of Pole in service
765 KV line having 4 X 686 sq. mm conductor =2250 MW per circuit
765 KV line having 4 X 686 sq. mm conductor operating at 400 kV =614 MW per circuit
400 KV line having 2 X 520 sq. mm conductor with shunt reactor =410 MW per circuit
400 KV line having 2 X 520 sq. mm conductor without shunt reactor =533 MWper circuit
400 KV line having 2 X 520 sq. mm conductor operating at 220 kV =155 MW per circuit
220 kV line =132 MW per circuit
132 kV Line =50 MW per circuit
source:http://www.mahatransco.in/oa/draft_procedure_calculation_transmission_availability.shtm
What else can I help you with?
What is surge impedance in power systems?
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.
What is impedance triangle?
An impedance triangle has resistance (always positive) in the x axis and reactance (at a right angle to resistance) in the y axis. The line that completes this triangle (the hypotenuse) is the absolute value of the impedance.
What is surge divertor?
Surge diverters are normally located on the terminal pole of an overhead line system, and are intended to protect terminal equipment (e.g. transformers, cables, etc.) from sudden surges in voltage. Each of the line conductors is normally connected to earth, via the surge diverter. Under normal circumstances, the internal resistance of the surge diverter is high enough to insulate the line conductor from earth. However, if a voltage surge occurs due, for example, to a lightning strike, then the resistance of the surge diverter will collapse, 'diverting' the surge to earth.
Is the output impedance of common emitter a fixed quantity?
A: NO it is not fixed it depends on the load line
What is the effect if capacitance in transmission line is high?
higher phase shift lower impedance
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
What is surge impedance in power systems?
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.
What is characteristics impedance?
The characteristic impedance or surge impedance belongs to a uniform transmission line, usually written Z0. It is the ratio of the amplitudes of a single pair of voltage and current waves propagating along the line in the absence of reflections.
Where it is the highest transmission voltage line in India?
400KV
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
How deep do you bury 110 volt romex electrical line?
please tell your line voltage (like 230V,400KV,)!
What are the importance of impedance matching in amplifiers?
Two reasons. 1...When impedance of source and destination match, power transfer is maximum. 2...If a long transmission line is involved, the characteristic impedance of the line must match the destination impedance, or reflections will occur on the line.
What are the secondary constant of transmission line?
The secondary constants of a transmission line are the surge impedance, propagation constant, attenuation constant, and phase constant. These constants determine the behavior of signals traveling through the transmission line and are important for analyzing the performance of the line in terms of signal integrity and power transmission.
What is the purpose of having a low impedance for transmission lines?
in order to reduce the transmission line losses we need low impedance...Low impedance also improves power transfer capacity of the line..
Why do you expect an infinity line to have an input impedance equal to the caractarictic impedance?
The characteristic impedance of a transmission line is the ratio of voltage to current of the propagating electrical wave. The line input impedance is the result of the superposition of forward and reverse, or reflected waves when the terminating impedance is not adapted. If the line is infinite, nothing returns from its end and only the forward wave exits. The voltage to current ratio is then the line characteristic impedance. Remark that the same occurs when the line is terminated by its characteristic impedance, the forward wave finds a perfect continuity to the load and no energy is reflected back to the line. A matched line is like an infinite line when looked from the input terminals. Long real lossy lines also act as infinite lines for the energy of the reflected wave is dissipated along the line before reaching the source.
A sentence with surge?
A power surge on your phone line can knock out your modem .
What is Indian railway transmission line voltage?
220v, 415v, 6.6 kv, 11kv,33kv,132kv,400kv
