«Elektr energetikasi» kafedrasi

5. Sexlarni KTP, kabel liniyalarni texnik-iqtisodiy taqqoslash bilan tanlash
5.1. Variant 1. KTP ni tanlash

Hamma sexlarda reaktiv quvvat kompensatsiya Q_k–kilingandan sung cosφ xar bir sexda bir xil bo‘lib ularni yig‘indisi ham bir xil bo‘ladi. Sexlarni umumiy quvvatini topish uchun ularni quvvatini ko‘shib chakamiz,



KTP-1 Sexa 11, 1: U_n = 10/0,4 kV, S = 726,76+356,1=1082,86 kVA

KTP 2xTM630/10 tanlaymiz, K=50,183 mln.so‘m, ΔR_kz=7,6 kVt, ΔR_xx=2,27 kVt

YUklama koeffitsienti

k_z=S_r /pS_nt=1082,86/1260=0,85

YUklanish Qobilyati bo‘yicha K_zp ^. S_nt = 1,4 ^. 630 = 882 > 1082.86 – 200.86 KVA yetarli emas

Bir yil uchun elektr energiya isrofi narxi

U_pet = n ^. (K_z^2. m ^.ΔR_kz + m₀^.ΔR_xx); m=180100 so‘m/kVt∙yil;

m₀=462528 so‘m/kVt∙yil;

U_pet=2 ^.(0,85^2. 180100 ^. 7.6 + 462528 ^. 2.27)=4.077 mln.so‘m/yil

KTP-2 Sexa 9,8,4,2: U_n = 10/0,4 kV, S = 979.29+443.9+390.1+83=1896.19 kVA

KTP 2xTM1600/10 tanlaymiz, K=124.707mln.so‘m,

ΔR_kz=16.5 kVt, ΔR_xx=3.3 kVt

YUklama koeffitsienti

k_z=S_r /pS_nt=1896.19/3200=0.59

YUklanish kobilyati bo‘yicha

K_zp ^. S_nt = 1,4 ^. 1600= 2240 > 1896.19 – yuklanish kobilyati yetarli

Bir yil uchun elektr energiya isrofi narxi

U_pet = n ^. (K_z^2. m ^.ΔR_kz + m₀^.ΔR_xx); m=180100 so‘m /kVt∙yil;

m₀=462528 so‘m /kVt∙yil

U_pet=2 ^.(0,59^2. 180100 ^. 16.5 + 462528 ^. 3.3)=5.121 mln.so‘m / yil

KTP-3 Sexa 5, 7: U_n = 10/0,4 kV, S = 834.9+403.8=1238.7 kVA

KTP 2xTM1000/10 tanlanadi, K=71.25 mln. so‘m, ΔR_kz=12.7 kVt, ΔR_xx=3.8 kVt

YUklama koeffitsienti

k_z=S_r /pS_nt=1238.7/2000=0.61

YUklanish kobilyati bo‘yicha K_zp ^. S_nt = 1,4 ^. 1000 = 1400 > 1238.7– yuklanish kobilyati bo‘yicha yetarli

Bir yil uchun elektr energiya isrofi narxi

U_pet = n ^. (K_z^2. m ^.ΔR_kz + m₀^.ΔR_xx); m=180100 so‘m /kVt∙ yil;

m₀=462528 sum/kVt∙god

U_pet=2 ^.(0,61^2. 180100^. 12.7 + 462528 ^. 3.8)=5.217 mln so‘m / yil

KTP-4 Sexa 6: U_n = 10/0,4 kV, S = 1411kVA

KTP 2xTM1000/10 tanlanadi, K=71.25 mln.sum, ΔR_kz=12.7 kVt, ΔR_xx=3.8 kVt

YUklama koeffitsienti

k_z=S_r /pS_nt=1411 /1000=0,70

YUklanish kobilyati bo‘yicha K_zp ^. S_nt = 1,4 ^. 1000 = 1400 < 1411 – etarli emas 11kVA

Bir yil uchun elektr energiya isrofi narxi

U_pet = n ^. (K_z^2. m ^.ΔR_kz + m₀^.ΔR_xx); m=180100 so‘m /kVt∙ yil;

m₀=462528 so‘m/kVt∙yil

U_pet=2 ^.(0, 7^2. 180100 ^. 12.8 + 462528 ^. 3.8)=5.77 mln.so‘m / yil

KTP-5 Sexa 3,10: U_n = 10/0,4 kV, S = 867.3+576.8=1444.1 kVA

KTP 2XTM1000/10 tanlanadi, K=71.25 mln.so‘m, ΔR_kz=12.7 kVt, ΔR_xx=3.8 kVt

YUklama koeffitsien0ti
k_z=S_r /pS_nt=1444.1/2000=0,72

YUklanish kobilyati bo‘yicha K_zp ^. S_nt = 1,4 ^. 1000= 1400<1444.1– etarli emas 44.1KVA

Bir yil uchun elektr energiya isrofi narxi

U_pet = n ^. (K_z^2. m ^.ΔR_kz + m₀^.ΔR_xx); m=180100 so‘m /kVt∙ yil;

m₀=462528 so‘m/kVt∙yil

U_pet=2 ^.(0,72^2. 180100 ^. 12.7 + 462528 ^. 3.8)=5.886mln.so‘m / yil
KTP larni tanlashda 1-variant uchun texnik-iqtisodiy ko‘rsatkichlar.

KTP-1 50.183 mln. so‘m

KTP-2 124.7 mln. so‘m

KTP-3 71.25 mln. so‘m

KTP-4 71.25 mln. so‘m

KTP-5 71.25 mln. so‘m

RP-1 10 kV 31,7 mln. so‘m

RP-2 10 kV 31,7 mln. so‘m

RU-1 0,4 kV 1,4 mln. so‘m

RU-2 0,4 kV 1,4 mln. so‘m

RU-3 0,4 kV 1,4 mln. so‘m

RU-4 0,4 kV 1,4 mln. so‘m

RU-5 0,4 kV 1,4 mln. so‘m

RU-6 0,4 kV 1.4mln. so‘m

a) Kapital mablag‘i:

K`_{ktp+RU10+RU0,4} = 50,183 + 124,7 +3 ^. 71,25 + 2 ^. 31,7 + 6 ^. 1,4 =

460.433mln. so‘m

b) Bir yil uchun elektr energiya isrofi narxi

U`_pet = ΣU_pet = 4,07+5,21+5,217+5,77+5,86= 26,127 mln.so‘m / yil
5.2. Variant 2. KTP larni tanlash

KTP-1, 1,11 1-variant singari.

KTP-2 , Sex 2,4: U_n = 10/0,4 kV, S = 979.29+443.9=1423.19 kVA

KTP 2XTM1000/10 tanlaymiz, K=71,25mln.so‘m,

ΔR_kz=12.7 kVt, ΔR_xx=3.8 kVt

YUklama koeffitsienti

k_z=S_r /pS_nt=1423.19/2000=0.71

YUklanish qobilyati bo‘yicha

K_zp ^. S_nt = 1,4 ^. 1000= 1400 > 1423.19– yuklanish kobilyati yetarli

Bir yil uchun elektr energiya isrofi narxi

U_pet = n ^. (K_z^2. m ^.ΔR_kz + m₀^.ΔR_xx); m=180100 so‘m /kVt∙yil;

m₀=462528 so‘m /kVt∙yil

U_pet=2 ^.(0,71^2. 180100 ^. 12,7 + 462528 ^. 3.8)=5,821 mln.so‘m / yil

KTP-3 Sexa 8.9: U_n = 10/0,4 kV, S = 390.1+83=473.1 kVA

KTP 2xTM400/10 tanlaymiz, K=33.8 mln.so‘m, ΔR_kz=5.5 kVt, ΔR_xx=1.45 kVt

YUklama koeffitsienti

k_z=S_r /pS_nt=473.1/800=0.6

YUklanish Qobilyati bo‘yicha K_zp ^. S_nt = 1,4 ^. 400 = 560 > 473.1 – yetarli

Bir yil uchun elektr energiya isrofi narxi

U_pet = n ^. (K_z^2. m ^.ΔR_kz + m₀^.ΔR_xx); m=180100 so‘m/kVt∙yil;

m₀=462528 so‘m/kVt∙yil;

U_pet=2 ^.(0,0.6^2. 180100 ^. 5.5 + 462528 ^. 1.45)=2.054 mln.so‘m/yil
KTP-4 Sex 5, 7: U_n = 10/0,4 kV, S = 834.9+403.8=1238.7 kVA

KTP 2xTM1000/10 tanlanadi, K=71.25 mln. so‘m, ΔR_kz=12.7 kVt, ΔR_xx=3.8 kVt

YUklama koeffitsienti

k_z=S_r /pS_nt=1238.7/2000=0.61

YUklanish kobilyati bo‘yicha K_zp ^. S_nt = 1,4 ^. 1000 = 1400 > 1238.7– yuklanish kobilyati bo‘yicha yetarli

Bir yil uchun elektr energiya isrofi narxi

U_pet = n ^. (K_z^2. m ^.ΔR_kz + m₀^.ΔR_xx); m=180100 so‘m /kVt∙ yil;

m₀=462528 sum/kVt∙god

U_pet=2 ^.(0,61^2. 180100^. 12.7 + 462528 ^. 3.8)=5.217 mln so‘m / yil

KTP-5 Sex 6,10: U_n = 10/0,4 kV, S = 1411+576,8=1987,8kVA

KTP 2xTM1600/10 tanlanadi, K=124,7 mln.sum, ΔR_kz=16.5 kVt, ΔR_xx=3.3 kVt

YUklama koeffitsienti

k_z=S_r /pS_nt=1987,8 /3200=0,62

YUklanish kobilyati bo‘yicha K_zp ^. S_nt = 1,4 ^. 1600 = 2240 >1987.8 – yuklanish kobilyati bo‘yicha yetarli

Bir yil uchun elektr energiya isrofi narxi

U_pet = n ^. (K_z^2. m ^.ΔR_kz + m₀^.ΔR_xx); m=180100 so‘m /kVt∙ yil;

m₀=462528 so‘m/kVt∙yil

U_pet=2 ^.(0, 62^2. 180100 ^. 16.5 + 462528 ^. 3.3)=5.337 mln.so‘m / yil

KTP-6 Sex 3: U_n = 10/0,4 kV, S = 867.3kVA

KTP 2xTM630/10 tanlaymiz, K=50,183 mln.so‘m, ΔR_kz=7,6 kVt, ΔR_xx=2,27 kVt

YUklama koeffitsienti

k_z=S_r /pS_nt=867.3/1260=0.68

YUklanish Qobilyati bo‘yicha K_zp ^. S_nt = 1,4 ^. 630 = 882 > 867.3 yuklanish kobilyati bo‘yicha yetarli

Bir yil uchun elektr energiya isrofi narxi

U_pet = n ^. (K_z^2. m ^.ΔR_kz + m₀^.ΔR_xx); m=180100 so‘m/kVt∙yil;

m₀=462528 so‘m/kVt∙yil;

U_pet=2 ^.(0,68^2. 180100 ^. 7.6 + 462528 ^. 2.27)=3.365 mln.so‘m/yil


KTP larni tanlaщda 2-variant uchun texnik-iqtisodiy ko‘rsatkichlar.

KTP-1 50,183 mln. so‘m

KTP-2 71,25 mln. so‘m

KTP-3 33,8 mln. so‘m

KTP-4 71,25 mln. so‘m

KTP-5 124,7 mln. so‘m

KTP-6 50,183 mln. so‘m

RP-1 10 kV 31,7 mln. so‘m

RP-2 10 kV 31,7 mln. so‘m

RU-1 0,4 kV 1,4 mln. so‘m

RU-2 0,4 kV 2,8 mln. so‘m

RU-3 0,4 kV 1,4 mln. so‘m

RU-4 0,4 kV 1,4 mln. so‘m

RU-5 0,4 kV 1,4 mln. so‘m

a) Kapital mablag‘i:

K`_{ktp+RU10+RU0,4} =2 ^.50,183+ 2 ^. 71,25+ 33,8+ 124,7+ 2 ^. 31,7+ 4 ^. 1,4 + 2,8 =

473,166 mln. so‘m

b) Bir yil uchun elektr energiya isrofi narxi

U`_pet=ΣU_pet=4,077 +5,821 + 2,054 +5,217 + 5,337+ 3,365=25,871 mln.so‘m/ yil