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SIMCO - سیمکــو - توليد كننده سيم و كابلsimcocable.com/fa/upload/da4b59f9/e1556d9e.pdfPage: 9 / 12 SIMCO d f D/LL/t ... Page: 10 / 12 SIMCO 1cm3 b=1μmm

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Page 1: SIMCO - سیمکــو - توليد كننده سيم و كابلsimcocable.com/fa/upload/da4b59f9/e1556d9e.pdfPage: 9 / 12  SIMCO d f D/LL/t ... Page: 10 / 12  SIMCO 1cm3 b=1μmm
Page 2: SIMCO - سیمکــو - توليد كننده سيم و كابلsimcocable.com/fa/upload/da4b59f9/e1556d9e.pdfPage: 9 / 12  SIMCO d f D/LL/t ... Page: 10 / 12  SIMCO 1cm3 b=1μmm

Page: 1 / 12 www.SimcoCable.com

SIMCO

XLPE

XLPE

XLPE

XLPE

Page 3: SIMCO - سیمکــو - توليد كننده سيم و كابلsimcocable.com/fa/upload/da4b59f9/e1556d9e.pdfPage: 9 / 12  SIMCO d f D/LL/t ... Page: 10 / 12  SIMCO 1cm3 b=1μmm

Page: 2 / 12 www.SimcoCable.com

SIMCO

XLPE

XLPE

XLPE

5mm

5±1 μm3±1 μm

3mm

10⁰C/min

b

DC

X-Y

Page 4: SIMCO - سیمکــو - توليد كننده سيم و كابلsimcocable.com/fa/upload/da4b59f9/e1556d9e.pdfPage: 9 / 12  SIMCO d f D/LL/t ... Page: 10 / 12  SIMCO 1cm3 b=1μmm

Page: 3 / 12 www.SimcoCable.com

SIMCO

3e

3d3e

Page 5: SIMCO - سیمکــو - توليد كننده سيم و كابلsimcocable.com/fa/upload/da4b59f9/e1556d9e.pdfPage: 9 / 12  SIMCO d f D/LL/t ... Page: 10 / 12  SIMCO 1cm3 b=1μmm

Page: 4 / 12 www.SimcoCable.com

SIMCO 3e

XLPE

4a4b4c

3a3c

5a

5b5b

A4ABC5b

4B4C4B4C

b5b

3bac5b

Page 6: SIMCO - سیمکــو - توليد كننده سيم و كابلsimcocable.com/fa/upload/da4b59f9/e1556d9e.pdfPage: 9 / 12  SIMCO d f D/LL/t ... Page: 10 / 12  SIMCO 1cm3 b=1μmm

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SIMCO

A , B , C

Page 7: SIMCO - سیمکــو - توليد كننده سيم و كابلsimcocable.com/fa/upload/da4b59f9/e1556d9e.pdfPage: 9 / 12  SIMCO d f D/LL/t ... Page: 10 / 12  SIMCO 1cm3 b=1μmm

Page: 6 / 12 www.SimcoCable.com

SIMCO

XLPE

4a

4b4c

D/L

df

df

4a4b4c

Page 8: SIMCO - سیمکــو - توليد كننده سيم و كابلsimcocable.com/fa/upload/da4b59f9/e1556d9e.pdfPage: 9 / 12  SIMCO d f D/LL/t ... Page: 10 / 12  SIMCO 1cm3 b=1μmm

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SIMCO df=1df

df

df

D/L

D/L

LDD/L

D/LD/L

9a9b

9b

9b

K2000Hz>K250Hz>K100Hz 0.03 : 0.012 : 0.0067K2000Hz : K250Hz : K100Hz

XLPE

Page 9: SIMCO - سیمکــو - توليد كننده سيم و كابلsimcocable.com/fa/upload/da4b59f9/e1556d9e.pdfPage: 9 / 12  SIMCO d f D/LL/t ... Page: 10 / 12  SIMCO 1cm3 b=1μmm

Page: 8 / 12 www.SimcoCable.com

SIMCO

Page 10: SIMCO - سیمکــو - توليد كننده سيم و كابلsimcocable.com/fa/upload/da4b59f9/e1556d9e.pdfPage: 9 / 12  SIMCO d f D/LL/t ... Page: 10 / 12  SIMCO 1cm3 b=1μmm

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SIMCO

L/t D/L df

PD

PD

PDPD

3e

XLPE

XLPE

XLPE

XLPE2R2r

XLPEα∆V

∆𝑉 = 𝑙.𝛼.∆𝑡.𝜋 𝑅2 − 𝑟2 − 𝑅2 1 − 𝛼.∆𝑡 2 − 𝑟2 ∆𝑉 = 𝑙.𝜋𝑅2𝛼2∆𝑡2 2 − 𝛼.∆𝑡

l∆tα.∆t << 1

∆𝑉 = 2𝑙.𝜋 𝑅𝛼.∆𝑡 2

XLPEr=11.3 mmR=29.8 mm

α=15*10-5

/KXLPE10*10-5

20*10-5

XLPE

∆𝑉

𝑉∗ 100% =

2𝑙𝜋 𝑅𝛼∆𝑡 2

𝑙𝜋 𝑅2−𝑟2 ∗ 100% = 0.103%

Page 11: SIMCO - سیمکــو - توليد كننده سيم و كابلsimcocable.com/fa/upload/da4b59f9/e1556d9e.pdfPage: 9 / 12  SIMCO d f D/LL/t ... Page: 10 / 12  SIMCO 1cm3 b=1μmm

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SIMCO b=1μmm1cm

3

𝑛/𝑉 =∆𝑉/∆𝑣

𝑉=

2𝑙𝜋 𝑅𝛼∆𝑡 2

4

3𝜋𝑏3 .𝑙𝜋 𝑅2−𝑟2

𝑛/𝑉 = 2.46 ∗ 108 (𝑁𝑢𝑚𝑏𝑒𝑟/𝑐𝑚3)

XLPE

XLPE

XLPE

XLPE

10a10b

Page 12: SIMCO - سیمکــو - توليد كننده سيم و كابلsimcocable.com/fa/upload/da4b59f9/e1556d9e.pdfPage: 9 / 12  SIMCO d f D/LL/t ... Page: 10 / 12  SIMCO 1cm3 b=1μmm

Page: 11 / 12 www.SimcoCable.com

SIMCO

𝑤 =𝑄𝑈

2

QUV0

𝑉0 =𝑤

𝑤𝑝=

𝑄𝑈

2𝑤𝑝

wpJ/cm3

QmL

𝑄𝑚 = 𝛼. 𝐿𝛽

αβ

L

𝑉 =𝛼𝑈𝐿𝛽

2𝑤𝑝

XLPE

XLPE

L-tdf-tD/L-t

PD

Page 13: SIMCO - سیمکــو - توليد كننده سيم و كابلsimcocable.com/fa/upload/da4b59f9/e1556d9e.pdfPage: 9 / 12  SIMCO d f D/LL/t ... Page: 10 / 12  SIMCO 1cm3 b=1μmm

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SIMCO

PD

XLPE

XLPE

[1] : electrical tree

[2] : morphology

[3] : double structure

[4] : residual stress

[5] : branch

[6] : bush

[7] : bine-branch

[8] : pine-branch

[9] : expansion coefficient

[10] : dynamic fractal dimension

[11] : growth rate

[12] : partial high temperature

[13] : amorphous

[14] : needle-plate

[15] : shrinkage

[16] : aromatic

[17] : spherulite

[18] : Partial high gas pressure and high temperature

[1] : X. Zheng and G. Chen , “ Propagation Mechanism of Electrical Tree in XLPE Cable Insulation by

investigating a Double Electrical Tree Structure “ , IEEE Transactions on Dielectrics and Electrical

Insulation, Volume 15, Issue 3, Page 800 - 807, June 2008