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Q2 An industrial plant is served by a 12470V delta / 480 V grounded -wye transformer .

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

connections of?

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.

a. 12.00

b. 22.37

c. 24

d. 48

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