ps ii assign

8/4/2019 Ps II Assign

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MANNAN INSTITUTE OF SCIENCE AND TECHNOLOGY

DEPARTMENT OF EEE

EEE-III-B.TECH-I-SEM (R9)

POWER SYSTEMS-II - ASSIGNMENT NO I

1. Derive theexpression for theinductanceperphasefor a 3-phase over head transmission line when

conductors areunsymmetrical placed but the lineis

completely transposed.

2. Evaluate the generalizedconstants for a) ShortTransmission Lines b) Medium Line

Nominal Tmethod

3. What do you understand by long transmissionlines? How capacitance effects are taken in to

account insuch lines?\

4. What is a travelling wave? Explain thedevelopment ofsuch waveon anoverhead line.

5. Figure 1 shows the spacing of a double circuit 3-phaseover head line. Thephasesequence is ABC

and the line is completely transposed. Theconductorradiusis 1.3 cm. Find theinductanceperphaseperkm.

7.5m

a a'

5m b b

5 m c c

6. A 132 KV ,3-phase,50 Hz transmission line 200kmlong has the following distributedparameters:

L=1.3x10-3

H/Km , C=9x10-9

F/Km,

R-0.2/Km, G=0

Find thesending endvoltage, Current, Powerfactor

and efficiency when delivering 50MVA at 0.8 pf

.lagging.

7. A 3-phase ,50Hzoverhead transmission line120Km long has the following parameters.Resistance /Km/phase=0.1,

inductivereactance /km/phase=0.3,

capacitivesusceptance/km/phase=0.04x10-4

S.

when it supplies a balanced load/km/phase of

10000KW at 66KV ,p.f 0.8 lagging find sending

end voltage,current and transmission efficiency.

Usenominal-T method.

MANNAN INSTITUTE OF SCIENCE AND TECHNOLOGY

DEPARTMENT OF EEE

EEE-III-B.TECH-I-SEM (R9)

POWER SYSTEMS-II - ASSIGNMENT NO I

1. Derive theexpression for theinductanceperphasefor a 3-phase over head transmission line when

conductors areunsymmetrical placed but the lineis

completely transposed.

2. Evaluate the generalizedconstants for a) ShortTransmission Lines b) Medium Line

Nominal Tmethod.

3. What do you understand by long transmissionlines? How capacitance effects are taken in to

account insuch lines?

4. What is a travelling wave? Explain thedevelopment ofsuch waveon anoverhead line.

5. Figure 1 shows the spacing of a double circuit 3-phaseover head line. Thephasesequence is ABC

and the line is completely transposed. Theconductorradiusis 1.3 cm. Find theinductanceperphaseperkm.

7.5m

a a'

5m b b

5 m c c

6. A 132 KV ,3-phase,50 Hz transmission line 200kmlong has the following distributedparameters:

L=1.3x10-3

H/Km , C=9x10-9

F/Km,

R-0.2/Km, G=0

Find thesending endvoltage, Current, Powerfactor

and efficiency when delivering 50MVA at 0.8 pf

.lagging.

7. A 3-phase ,50Hz overhead transmission line120Km long has the following parameters.Resistance /Km/phase=0.1,

inductivereactance /km/phase=0.3,

capacitive susceptance/km/phase=0.04x10-4

S.

when it supplies a balanced load/km/phase of

10000KW at 66KV ,p.f 0.8 lagging find sending

end voltage,current and transmission efficiency.

Usenominal-T method.


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Medicinal plants of

Nellore district and

poisonous plants

around us

Plantsused forGanapathipooja,Medicinal plants

prescribed fora studyin B.Sc, Poisonousplantsaroundus toeducatecommonpeople, and a list of

few medicinal plants availablein thedistrict arepresentedin this blog.

Saturday, September 4, 2010

Plants used as Patri for Vinaayaka

chavithi

Happy Vinayaka chaturdhi.

21plants botanical names, Telugunames andphotographs areprovided forcorrect andeasy

identification. Respect ourNature. Be Eco

friendly.Wish you a Happy and Healthy

Vinayaka chavithi.

Artimissia .pallense1.Sumukhaya Namaha.:

Plant name: (Sanskrit) Machipatram

(Telugu)(Davanam(Machapatri)*Botanical

name:Artmisia indica)

A.pallense(Family: Asteraceae) ()A.Small

aromatic herb. Insome booksit is written as

A.Pallens.

Medicinal Use: Aromatic, tonic, antimalarial &

digestive.

Solanumsurattense

2.Ganadhipaya Namaha :

Plant name:

(Sanskrit)Brihatipatram,(Telugu)Vakudu -

()Botanical name:Solanum

surettense(Family:Solanaceae) An armedshrub inwasteplaces.

Medicinal Use:Diuretic,

Aegle marmelos

3.Gowriputraya Namaha:

Plant name: (Sanskrit)Bilvapatram(Telugu)Maredu ()-

Botanical name:Aegle marmelos (Family:Rutaceae)

Medicinal Use:Fruit pulp tocontrol motions, antidiabetic, coolant. ) Commonly foundin temples.


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Cyanodon dactylon

4. Gajananaya Namaha:

Plant name: (Sanskrit)Durvara patra

(Telugu)Garika

Botanical name Cyanodon

dactylon(Family:Poaceae) Small herb

Medicinal Use:To Control diarrhea, anti

ciphalis,anti bleeding

Datura metal

5. Harasunve Namaha:

Plant name: (Sanskrit)Dattura ptra

(Telugu)

Botanical name:Datura

metal(Family:Solanaceae) A herb in wasteplaces

Medicinal Use:Foralleviating respiratorydiseasessuch as asthma.

Zizyphusmauritiana

6. Lambodaraya Namaha:

Plant name: (Sanskrit)Badaripatra (Telugu)Regu;

Botanical name:Zizyphusmauritiana/

Z.jujba(Family:Rhamnaceae)

Medicinal Use:Digestive An armedshrub in

forestsorin wasteplaces.

Achyranthes aspera

7. Guhagrajaya Namaha:

(Sanskrit)Apamarga patra (Telugu)Uttareni-

Botanical nameAchyranthes aspera

(Family:Amaranthaceae)

Medicinal Use:Affectsentire body.leaves fordigestiveproblems,andskindiseases,root for

scorpionbite. A herb founin wasteplaces.

Ocimumsanctum


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8. Gajakarnaya Namaha:

(Sanskrit)Tulasi (Telugu)Tulasi-

Botanical name:Ocimumsanctum

(Family:Lamiaceae) Medicinal Use:Anti kapha,

tocontrol skin andrespiratorydiseases A sacred

herb grownin house holds and temples

Mangifera indica

9. Ekadantaya Namaha:

(Sanskrit)Chuta patra (Telugu)Mamidi-

Botanical name:Mangifera indica

(Family:Anacardiaceae) Medicinal Use:For

Diphtheria, tenderleaves are antidiabetic A tree

Cascabela thevitia

10 Vikataya Namaha:

(Sanskrit)Karaveera patra (Telugu)Genneru

Botanical name:Thevetia neerifolia/Cascabela

thevitia(Family:Apocyanaceae)Medicinal Use:Diuretic, forheart

diseases,poisonousin high doses A shrub foundinsiva temples.

Evolvulus alsinoides

11. Bhinnadantaya Namaha: (Sanskrit)Vishnukrantham

(Telugu)Vishnukrantham

Botanical name:Evolvulus alsinoides (Family:

Convolvulaceae)

Medicinal Use:Improvesmemory, used for

nurological diseases ) A herb in waste lands.

Punica granatum

12. Vatave Namaha:

(Sanskrit)Dadimipatra (Telugu)Danimma

Botanical name:Punica granatum

(Family:Punicaceae)

Medicinal Use:Tocontrol motions, controls

bleeding,antipitta A cultivatedshrub

Origanummajorana

13. Sureswaraya Namaha:


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(Sanskrit)Maruvaka patr(Telugu)Maruvam

Botanical name:Origanummajorana

(Family:Lamiaceae)

Medicinal Use:ForRhumaticdiseases andskin

diseases Cultivated aromatic herb.

Citrus limonium

14. Phaalachandraya Namaha:

(Sanskrit)Jambeera (Telugu)Gajanimma

Botanical name -Citrus limonium (Family:

Rutaceae)

Medicinal Use:Digestive A treecultivated forits

fruits.15. Sarveswaraya Namaha:

Devadaru (Sanskrit) (Telugu)Devadaru-Botanical name -Cedrus deodar

(Family::Pinaceae) Sorry, image not available. Medicinal Use:ForSkindiseases, antipyretic.

ErythroxylummonogynumIn South India where Cedrusisnot available,

Erytroxylumisused . It is availableinscrub

forests.

Vitex nigundo

16. Herambhaya Namaha:(Sanskrit)Sindhuvara patram (Telugu)Vavili-

Botanical name:Vitex nigundo (Family:

Verbinaceae)

Medicinal Use: Antivata, relievepainsinmuscles

andjoints.A shrub cultivated as a hedgeplant or

run wildin wasteplaces

Jasminum grandiflorum

. 17. Surpakarnaya Namaha:

(Sanskrit)Jajipatram (Telugu)Jaji.

Botanical name:Jasminum grandiflorum (Family

: Oleaceae)

Medicinal Use:Forskindiseases A twinerin

forests

Acacia spicigera

18. Ibhavaktraya Namaha:


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(Sanskrit)Samipatram (Telugu)Jammi

Botanical name:Acacia spicigera (Family:

Mimosaceae)

Medicinal Use:Pacifying, digestive A small tree

in forestsorfoundinsome temples.

Ficusreligiosa

19. Vinayakaya Namaha:

(Sanskrit)Aswatha patram (Telugu)Ravi Botanical name:Ficusreligiosa (Family:

Moraceae )

Medicinal Use:Digestive ,enhances

reproductivity,pacifying ) A tree foundin temples

especiallyin Vishnu temples

Terminalia arjuna

20. Surasevitaya Namaha:

(Sanskrit)Arjuna patra (Telugu)Tella maddi.-

Botanical name:Terminalia arjuna(Family:

Combritaceae)Medicinal Use:Tonic It is a tree. Foundin forests

Calotropis gigantia

21. Kapilaya Namaha:

(Sanskrit)Arka patram (Telugu)Jilledu-

Botanical name: Calotropis gigantia (Family:

Asclepiadaceae)

Medicinal Use:Antipoisonous, antivata A shrub

in wasteplaces

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