IN IN = 1N: Refers to the number of junctions (1N= 1 junction).
O= Germanium, A= rectifier diode, so OA = germanium rectifier diode.Basically . economiser is located in between exit of boiler and entry of air preheater. when the flue gases are coming out from boiler they take away a lot of heat. economiser utilize this heat from flue gases. and these heat is used to heat the feed water which is going to feed the bolier. hence by using economiser the coal consumption required to heat the feed water is reduced hence cost reduced.
400KV transmission line surge impedence loading is depent upon the conductor type but its arount 600mw400KV 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 service765 KV line having 4 X 686 sq. mm conductor =2250 MW per circuit765 KV line having 4 X 686 sq. mm conductor operating at 400 kV =614 MW per circuit400 KV line having 2 X 520 sq. mm conductor with shunt reactor =410 MW per circuit400 KV line having 2 X 520 sq. mm conductor without shunt reactor =533 MWper circuit400 KV line having 2 X 520 sq. mm conductor operating at 220 kV =155 MW per circuit220 kV line =132 MW per circuit132 kV Line =50 MW per circuitsource:http://www.mahatransco.in/oa/draft_procedure_calculation_transmission_availability.shtm
In OA79, the letter A stands for rectifier diode and O stands for Germanium. It acts as a point contact germanium diode and also be replaced with 1N4148 depending on the circuit.
i think to make earth feel better visit my blog for more at http://www.jewelryinworld.blogspot.com OA79 represents Germanium diode. O = germanium, A= rectifier diode.
OA = open account
open account 30 days..
oa words are railroad!!
The population of Hiva-Oa is 1,986.
Oa Skywalker is 5' 11".
The area of Hiva-Oa is 330 square kilometers.
oa
The letter o has the same sound as the oa in goat
boatcoatloadroadgoalboardaboard
The song with the lyrics "Oh Mariano oa oa oa" is "Volare" by Italian singer Domenico Modugno. The lyrics "Nel blu, dipinto di blu" are often associated with this song, which was a huge international hit in the late 1950s. The song's title, "Volare," means "to fly" in Italian, and it is known for its catchy melody and upbeat tempo.