Monday, May 24, 2010
Cicuits per phase 1
Sub-conductors per phase 2
Conductor Name and Size Moose,54/3.53mm Alluminium 7/3.53mm Steel
Sub-conductor Diameter 3.177cm
Bundle Configuration Horizontal
Bundle Spacing 450mm
Interphase Spacing 11m
Condutor Configuration Horizontal
Resistance per phase per km at 20degrees 0.0274Ohm
Inductive Reactance per phase per km 0.3321Ohm
Shunt Admittance per phase per km 3.2983*10-6
Surge Impedance 282Ohm
Surge Impedance Loading 505MW
Current Carying capacity at 40degrees ambient temperature 900A
Ground Wire 2Number,7/3.66mm Galvanised Steel
Ground wire height at tower 30.4m
Tower height 30.4m
Conductor Height at tower 20.75m
Conductor sag at 0degrees 8.39m
Ground wire sag at 0degrees 6.654m
Shielding angle 10degrees
Suspension string 23dics,225*145mm
Impulse Flashover voltage 1550kV
Examples:Sultanpur-Lucknow Line, Obra-kanput Line, Kanpur-Maradnagar Line.
Friday, May 14, 2010
An electrical generator is a machine that converts mechanical energy into electrical energy.
This conversion is based on the production of dynamically induced emf whenever a conductor cuts magnetic flux –Faraday’s Law of Electromagnetic Induction.
Essential Parts of an Electrical Generator
----Conductor/Conductors which move so as to cut the flux
Wednesday, May 12, 2010
Cooling: Oil Cooled
Application: Commercial,Heavy Residential,Farmhold
This type of transformer is mainly used for Step-Down purposes of voltages in the range of 11kV~415/240V.
Thursday, May 6, 2010
KenGen and the UoN School of Mathematics will determine the overspill point or neighborhood. Once this is determined and if the rains persist as projected by the KMD, risk reduction measures ahead of the imminent floods are required.