Q2 An industrial plant is served by a 12470V delta / 480 V grounded -wye transformer . The high voltage side of the
transformer is served from a 12470-VDELTA/480-V wye connected distribution line that has a grounded neutral
.The best protection of the transformer against lighting strikes on the 12,470-v line will result from surge arrester
e. Phase to ground on the 12,470-V side of the transformer
f. Phase to phase on the 12,470-V side of the transformer
g. Phase to ground on the 480 V side of the transformer
h. Phase to neutral to ground on the 480-v side of the transformer
Q5.A microwave relay link is used to transmit binary information and has the following specification.
Carrier frequency 6Ghz
Atmospheric loss 0.2 dB / Mile
Transmission bandwidth 24 Mhz
Transmitted symbol rate 22.368 Msymbols/ sec
Transmitted antenna gain 44db
Reciever antenna gain 44db
Receiving system effective input noise temperature 500K
To minimize system noise without degrading transmitted signal quality , the absolute minimum bandwidth (mhz) of the
intermediate frequency (IF)Filter in the receiver should be most nearly.
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