Boru Bara Mekanik Hesaplar

7/29/2019 Boru Bara Mekanik Hesaplar

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Ref. (4)-G77700-S0019-L059-A

Project:

Gilgel Gibe II PROJECTETHIOPIA

Descri tion:

400 kV SWITCHYARDDESIGN

REPORTs & CALCULATIONs

Sub ect:

Report on Calculations for Determination ofElectrodynamic Forces on Equipments ConnectedThrough Rigid Conductor and Allowable Span of

the Rigid Bus Conductor

Note:

This report is for calculations to determine the electrodynamic force onequipments connected through rigid bus conductor and also estimation of themaximum possible unsupported span length of the rigid bus conductor basedon the properties of vertical deflection of the conductor and the fiber stresgenerated on the conductor depending on the nature of the end supports.

BORU BARA MEKANIK HESAPLAR :


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Calculation for Electrodynamic Force on Equipment & Permis-sible Span length of Rigid Conductor

Page: 3 of 6

Handling: Unrestricted

Siemens Power Engineering Pvt. Ltd. The reproduction, transmission or use of this document or i ts contents is notpermitted without express written authority. Offenders will be liable fordamages. All rights, including rights created by patent grant or registrationof a utility model or design, are reserved.

(4)-G77700-S0019-L059-A

Contents

page

1. Introduction ....................................................................................................................... 4

2. System Data...................................................................................................................... 4

3. Conductor Data................................................................................................................. 5

4. Equipment Technical data................................................................................................. 5

5. Attachments ...................................................................................................................... 5

6. Conclusion ........................................................................................................................ 6

7. References........................................................................................................................ 6


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(4)-G77700-S0019-L059-A

1 Introduction

In addition to the Bus Post Insulators the rigid bus in out-door substation is also connected tovarious other equipment and supported on them. These equipments are hence subjected to sus-tain all types of stresses on bus conductor owing to electrically and mechanically originatedforces.

The principal forces on the equipment connected to the rigid conductor are as follows

a. Short circuit current force on the bus conductor.

b. Wind force on the bus conductor.

c. Wind force on the equipment.

d. Weight of the bus conductor span supported by the equipment.

The resultant of these forces correlated to the type of End Connection of the rigid conductor atthe equipment terminal gives the value of the net Electromagnetic Force on the equipment. Thevalues of the forces obtained herewith forms valuable input for design of equipment supportstructure and equipment foundation design.

In this report, along with the force on equipments the maximum permissible unsupported spanlength of the rigid bus conductor connecting the equipments is also determined. The maximumpermissible span is calculated within the limits of Vertical deflection and permissible FibreStress corresponding to the type of End Connection to the supporting equipment terminals ateach end of the span. The calculation is performed on the method stipulated by IEEE 6051987and the minimum of the span length obtained from the calculation is conservatively consideredas the maximum allowable unsupported span for all influencing conditions.

2 System data

400kV AC Switchyard

Nominal System Voltage 400 kV

System Frequency 50 Hz

Short Circuit Fault Current 31.5 kA

Duration of Fault Current 1 sec

Maximum Wind Pressure 700 N/m2

Altitude above sea level >1500 m

3 Conductor Data

Rigid Conductor


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(4)-G77700-S0019-L059-A

i) 250/6mm Aluminum Tube (AlMgSi0.5F25) to serve as Main Bus Conductor

Outer Diameter 250 mm

Wall thickness 6 mm

Weight 12.4 Kg/m

Weight of Damping Material (Twin 954 MCM Cardinal ACSR) 1829.8 Kg/kM

ii) 120/8mm Aluminum Tube (AlMgSi0.5F25) to serve as Equipment Bus Conductor at the BusCoupling feeder


Wall thickness 8 mm

Weight 7.6 Kg/m

Weight of Damping Material (Single 954 MCM Cardinal ACSR) 1829.8 Kg/kM

iii) 120/6mm Aluminum Tube (AlMgSi0.5F25) to serve as Equipment Bus Conductor at theTransformer & Line feeders


Wall thickness 6 mm

Weight 5.8 Kg/m

Weight of Damping Material (Single 954 MCM Cardinal ACSR) 1829.8 Kg/kM

Common for all tubes specified above

Youngs Modulus 70000 N/mm2

4 Equipment Technical data

As per equipment vendor drawing and technical data sheets.

5 Attachments

Attachment-1: Check for Allowable Span Length of the Main Bus Conductor.

Attachment-2: Calculation of Stress of Equipments Connected by Rigid Bus at C phase of theMain Bus work.

Attachment-3: Check for Allowable Span Length of the Equipment Bus Conductor at the CouplingBay.


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(4)-G77700-S0019-L059-A

Attachment-4: Calculation of Stress of Equipments Connected by Rigid Bus at C phase of theCoupling Bay.

Attachment-5: Check for Allowable Span Length of the Equipment Bus Conductor at the Trans-

former & OHL Bay.

Attachment-6: Calculation of Stress of Equipments Connected by Rigid Bus at C phase of theTransformer & OHL Bay.

Attachment-7: Summary of Forces on Equipments

6 Conclusion

1. The values of permissible span length of each size of the rigid bus conductor is as presented inthe calculation sheets attached.

2. The maximum values of the forces on the equipment connected with the rigid bus is as pre-sented in the Summary sheet of the calculation. The input forces for structural design are alsobrought out in the summary sheet.

7 References

1. IEEE Std 605 : 1987 IEEE Guide for Design of Substation Rigid-Bus Structures.

2. Technical Data sheet for Aluminum Alloy Tubular Conductor: Manufacturer Corus.

3. G.A. Drawing for Bus Post Insulator: Manufacturer Porzellanfabrik Frauenthal Insulators.

4. G.A. Drawing for Centre Break Disconnector: Manufacturer Merlin Gerin

5. G.A. Drawing for Pantograph Disconnector: Manufacturer Merlin Gerin

6. G.A. Drawing for Circuit Breaker: Manufacturer SIEMENS AG

7. G.A. Drawing for Current Transformer: Manufacturer Trench France


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S (4)-G77700-S0019-L059-A

ATTACHMENT-1

SYSTEM DATA : 400 kV SWITCHYARD

a) System Voltage : 400 kV

b) Fault Level : 31.5 kA

c) Phase-to-Phase Spacing: 6 m

TUBULAR BUS CONDUCTOR DATA :

a) Size : AlMgSi0.5F25

250 mm

c) Thickness : 6 mm

d) Weight 12.4 Kg/m

e) Max Allowable stress 11.72 Kg/mm2

f) Modulus of Elasticity 7.00E+10 N/m2

g) Vertical Deflection 21.5/24 cm/m

= 8.96 mm/m

h) Weight of Damper Material 3.66 Kg/m (Twin 954 CARDINAL ACSR Conductor)

Max. Wind Pressure(Pmax) = 700 N/m (as per technical specification)

Ambient air density(d) = 0.613 Kg/m3

Wind Velocity(V) = (Pmax/d)1/2

m/s

= 33.79 m/s

Now,

Coss sectional moment of inertia of the tube ( J) ( S/64 ).(Do4

- Di4) (1)

where,

DO = Outer Diameter of tube = 250 mm

Di = Inner Diameter of Tube = 238 mm

Therefore, J = 34231262.64 mm4

= 82.24027953 in4

Sectional Modulus of the tube S = J/(DO/2) mm3

(2)

= 273850.1011 mm3

= 16.71125822 in3

a. Conductor Wind Force (FW

) = 2.132 x 10-4

CDK

ZG

FV

2(D

O+2r

1) lbf/ft (3)

Where

DO = Outer Diameter of Conductor 9.84 inch

r1 = Radial Ice thickness. = 0 inch

CD = Drag coefficient (Table 1, IEEE:605) = 1 (round conductor)

KZ = Height and exposure factor (Cl.10.2, IEEE:605) = 1

GF = Gust factor (Cl. 10.3, IEEE:605) = 1.3

V =Wind speed at 30ft. above ground = 33.79 m/s

= 75.59 mi/h

Hence, FW = 15.59 lbf/ft

b. Short Circuit Current Unit Force (FSC) = 27.6* ISC2

/ 107(D) lbf/ft (4)

where,

ISC = Symmetrical short circuit current = 31500 A

D = Conductor spacing centre to centre = 236.22 inch

* = Constant based on type of short circuit and = 0.866

conductor location (Table 2, IEEE:605)

Hence, FSC = 10.04 lbf/ft

c. Total bus unit weight (FG) = FC + FI + FD lbf/ft (5)

b) Outer dia.

CHECK FOR ALLOWABLE SPAN LENGTH of THE MAIN BUS

Gilgel Gibe II Hydroelectric project1


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S (4)-G77700-S0019-L059-A

ATTACHMENT-1

where,

FC = Conductor unit weight = 8.33 lbf/ft

FD = Damping material unit weight = 2.46 lbf/ft

FI = Ice Unit weight = 0 lbf/ft

Hence, FG = 10.79 lbf/ft

The total Force on a conductor in Horizontal configaration

FT = {(FW + FSC)2

+ (FG)2

}1/2

(6)

= 27.81 lbf/ft

Calculation for Allowable Span Length For Vertical Deflection:

Case-I Span with Two Pinned Ends

Allowable Bus Span (LD) = [384 (E) (J) (YB) / 5(FG/12)]1/3

inch. (7)

where,

YB = Allowable Deflection as a fraction of span length = 0.10749 inch/ft

E = Modulus of Elasticity = 1.01E+07 lbf/in2

J = Coss sectional moment of inertia 82.24 in4

FG = Total Bus Unit weight 10.79 lbf/ft

Hence LD = 1827.346482 inch

= 46414.60 mm

Case-II Span with Two Fixed Ends

Allowable Bus Span (LD) = [384 (E) (J) (YB) / (FG/12)]1/3

inch. (8)

Hence LD = 3107.999948 inch.

= 78943.20 mm

Case-III One Fixed and One Pinned End


inch. (9)

Hence LD = 2442.408874 inch.

= 62037.19 mm

Calculation for Allowable Span Length for Fiber Stress :


Allowable Bus Span (LS) = [8 (FA) (S) / (FT/12)]1/2

inch. (10)

where,

FA = Maximum Allowable Stress = 16672.64516 lbf/in

S = Section Modulus = 16.71 in3

FT = Total Force = 27.81 lbf/ft

Hence LS = 980.76 inch.

= 24911.18 mm

Case-II Span with Two Fixed Ends inch.


inch. (11)


= 30509.84 mm


= [8 (FA) (S) / (FT/12)]1/2

inch. (12)

Hence LS = 980.76 inch

= 24911.18 mm



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ATTACHMENT-1

Maximum Allowable Span of the Al. Tube within the limits of 'Vertical Deflection' and permissible 'Fiber Stress' for

various types of 'End Connections' are as follows :

LA = Minimum of LD & LS

Case-I For Span with two Pinned Ends = 24.91 m

Case-II For Span with two fixed Ends = 30.51 m

Case-III One Fixed one Pinned = 24.91 m



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ATTACHMENT-2

'C' PHASE OF MAIN BUSWORK

P P P P P P P P

24M 24 M 24M 24M 24M

ES BPI BPI BPI BPI

Note : 1. Phase to Phase spacing = 6 m.

2. End Connection Type P : Pinned F : Fixed

a. Bus Short Circuit Force

FSB = LE.FSC

Equipment BUS SPAN BUS SPAN LE FSC

L1(M) L2(M) (M) lbf/ft lbf KNES 0.00 24.00 12.00 10.04 395.27 1.758

BPI 24.00 24.00 24.00 10.04 790.55 3.517

BPI 24.00 24.00 24.00 10.04 790.55 3.517

BPI 24.00 24.00 24.00 10.04 790.55 3.517

BPI 24.00 24.00 24.00 10.04 790.55 3.517

BPI 24.00 24.00 24.00 10.04 790.55 3.517

BPI 24.00 24.00 24.00 10.04 790.55 3.517

ES 24.00 0.00 12.00 10.04 395.27 1.758

b. Bus wind Force

FWB = LE.FW

Equipment BUS SPAN BUS SPAN LE FW

L1(M) L2(M) (M) lbf/ft lbf KN

ES 0.00 24.00 12.00 15.59 613.69 2.730

BPI 24.00 24.00 24.00 15.59 1227.38 5.460

BPI 24.00 24.00 24.00 15.59 1227.38 5.460

BPI 24.00 24.00 24.00 15.59 1227.38 5.460

BPI 24.00 24.00 24.00 15.59 1227.38 5.460

BPI 24.00 24.00 24.00 15.59 1227.38 5.460

BPI 24.00 24.00 24.00 15.59 1227.38 5.460

ES 24.00 0.00 12.00 15.59 613.69 2.730

c. Insulator wind Force

FWI = 1.776 x 10-5

CDKZGFV2

(Di+2r1)Hi lbf

Equipment D1 D2 Di Hi

(m) (m) (m) (m) lbf KN

ES 0.36 0.16 0.26 3.35 178.11 0.792BPI 0.36 0.16 0.26 3.35 178.11 0.792

BPI 0.36 0.16 0.26 3.35 178.11 0.792

BPI 0.36 0.16 0.26 3.35 178.11 0.792

BPI 0.36 0.16 0.26 3.35 178.11 0.792

BPI 0.36 0.16 0.26 3.35 178.11 0.792

BPI 0.36 0.16 0.26 3.35 178.11 0.792

ES 0.36 0.16 0.26 3.35 178.11 0.792

BPI-ES

BPI-ES

BPI-BPI-BPI

Connected

24M 24M

BPI-BPI-BPI

BPI-BPI-BPI

BPI-BPI-ES

BPI BPI ES

CALCULATION OF STRESSES OF EQUIPMENTS CONNECTED BY RIGID BUS

BPI-BPI-BPI

EquipmentES-BPI

ES-BPI-BPI

Connected

ES-BPI

BPI-BPI-BPI

BPI-BPI-BPI

ES-BPI-BPI

Equipment

BPI-BPI-BPI

BPI-BPI-BPI

BPI-BPI-ES

FSB

FWB

FWI

Gilgel Gibe II Hydroelectric Project 1


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S (4)-G77700-S0019-L059-A

ATTACHMENT-2

d. Gravitational Force

FGB = LE.FG ``````

Equipment BUS SPAN BUS SPAN LE FG


ES 0.00 24.00 12.00 10.79 424.92 1.89

BPI 24.00 24.00 24.00 10.79 849.83 3.78

BPI 24.00 24.00 24.00 10.79 849.83 3.78

BPI 24.00 24.00 24.00 10.79 849.83 3.78

BPI 24.00 24.00 24.00 10.79 849.83 3.78

BPI 24.00 24.00 24.00 10.79 849.83 3.78

BPI 24.00 24.00 24.00 10.79 849.83 3.78

ES 24.00 0.00 12.00 10.79 424.92 1.89

e. Insulator Cantilever Load

FIS =

K1 = Overload Factor applied to wind force = 1

K2 = Overload Factor applied to short circuit force = 1

Hf = Bus Cen. Height above Insulator = 0.215 m

= 8.46 inch



ES 0.36 0.16 0.26 3.35 1162.77 5.18

BPI 0.36 0.16 0.26 3.35 2236.49 9.96

BPI 0.36 0.16 0.26 3.35 2236.49 9.96

BPI 0.36 0.16 0.26 3.35 2236.49 9.96

BPI 0.36 0.16 0.26 3.35 2236.49 9.96

BPI 0.36 0.16 0.26 3.35 2236.49 9.96

BPI 0.36 0.16 0.26 3.35 2236.49 9.96

ES 0.36 0.16 0.26 3.35 1162.77 5.18

Summary

Equipment FSB FWB FWI FGB FIS

KN KN KN KN KN

ES 1.76 2.73 0.79 1.89 5.18

BPI 3.52 5.46 0.79 3.78 9.96

BPI 3.52 5.46 0.79 3.78 9.96

BPI 3.52 5.46 0.79 3.78 9.96

BPI 3.52 5.46 0.79 3.78 9.96

BPI 3.52 5.46 0.79 3.78 9.96

BPI 3.52 5.46 0.79 3.78 9.96

ES 1.76 2.73 0.79 1.89 5.18

BPI-ES

BPI-BPI-BPI

BPI-BPI-BPI

BPI-BPI-ES

Equipment

Connected

BPI-BPI-BPI

BPI-BPI-BPI

ES-BPI-BPI

ES-BPI

FIS

FGB

))(

()(

2( 21

i

SBfi

i

WBfiWI

H

FHHK

H

FHHFK



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ATTACHMENT-3




c) Phase-to-Phase Spacing: 6.5 m



120 mm

c) Thickness : 8 mm

d) Weight 7.6 Kg/m




= 9.83 mm/m

h) Weight of Damper Material 1.83 Kg/m (Single 954 CARDINAL ACSR Conductor)




m/s

= 33.79 m/s

Now,


- Di4) (1)

where,




= 10.6525978 in4


(2)

= 73899.69067 mm3

= 4.509608754 in3


) = 2.132 x 10-4

CDK

ZG

FV

2(D

O+2r

1) lbf/ft (3)

Where




KZ = Height and exposure factor (Cl.10.2, IEEE:605) = 1 (bus height > 30ft.)



= 75.59 mi/h



/ 107(D) lbf/ft (4)

where,







b) Outer dia.

CHECK FOR ALLOWABLE SPAN LENGTH of THE EQUIPMENT BUS AT COUPLING BAY



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ATTACHMENT-3

where,






FT = {(FW + FSC)2

+ (FG)2

}1/2

(6)

= 17.91 lbf/ft




inch. (7)

where,






= 29066.98 mm



inch. (8)

Hence LD = 1946.374142 inch.

= 49437.90 mm



inch. (9)

Hence LD = 1529.55005 inch.

= 38850.57 mm




inch. (10)

where,





= 16125.42 mm



inch. (11)


= 19749.53 mm


= [8 (FA) (S) / (FT/12)]1/2

inch. (12)


= 16125.42 mm



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ATTACHMENT-3









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ATTACHMENT-4

'C' PHASE OF COUPLING BAY

P P P P P P F F P

3.5M 3.5M

6M 6M 10.5M 12M

CT CB CT BPI ISO ISO BPI

(Pantograph) (Pantograph)

Note : 1. Phase to Phase spacing = 6.5 m.



FSB = LE.FSC


L1(M) L2(M) (M) lbf/ft lbf KNCT 0.00 3.50 1.75 9.27 53.21 0.237

CB 3.50 3.50 3.50 9.27 106.42 0.473

CT 3.50 10.50 7.00 9.27 212.84 0.947

BPI 10.50 12.00 9.75 9.27 296.45 1.319

ISO(Panto) 12.00 0.00 7.50 9.27 228.04 1.014

ISO(Panto) 0.00 6.50 4.06 9.27 123.52 0.549

BPI 6.50 0.00 2.44 9.27 74.11 0.330

b. Bus wind Force

FWB = LE.FW



CT 0.00 3.50 1.75 7.48 42.96 0.191CB 3.50 3.50 3.50 7.48 85.92 0.382

CT 3.50 10.50 7.00 7.48 171.83 0.764

BPI 10.50 12.00 9.75 7.48 239.34 1.065

ISO(Panto) 12.00 0.00 7.50 7.48 184.11 0.819

ISO(Panto) 0.00 6.50 4.06 7.48 99.72 0.444

BPI 6.50 0.00 2.44 7.48 59.83 0.266


FWI = 1.776 x 10-5

CDKZGFV2

(Di+2r1)Hi lbf



CT 0.75 0.47 0.61 4.43 550.32 2.448

CB 0.42 0.24 0.33 4.92 329.15 1.464

CT 0.75 0.47 0.61 4.43 550.32 2.448BPI 0.29 0.13 0.21 3.35 143.86 0.640

ISO(Panto) 0.30 0.14 0.22 3.88 174.69 0.777

ISO(Panto) 0.30 0.14 0.22 3.88 174.69 0.777

BPI 0.29 0.13 0.21 3.35 143.86 0.640

FSB

FWB

FWI

ISO(Panto)-BPI

Connected

Equipment

BPI-ISO(Panto)

ISO(Panto)-BPI


CT-BPI-ISO(Panto)

EquipmentCT-CB

CT-CB-CT

Connected

CT-CB

CT-BPI-ISO(Panto)

CB-CT-BPI

CT-CB-CT

6.5M

BPI-ISO(Panto)

ISO(Panto)-BPI

ISO(Panto)-BPI

CB-CT-BPI



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ATTACHMENT-4


FGB = LE.FG



CT 0.00 3.50 1.75 6.34 36.39 0.16

CB 3.50 3.50 3.50 6.34 72.77 0.32

CT 3.50 10.50 7.00 6.34 145.54 0.65

BPI 10.50 12.00 9.75 6.34 202.72 0.90

ISO(Panto) 12.00 0.00 7.50 6.34 155.94 0.69

ISO(Panto) 0.00 6.50 4.06 6.34 84.47 0.38

BPI 6.50 0.00 2.44 6.34 50.68 0.23


FIS =




= 5.91 inch



CT 0.75 0.47 0.61 4.43 374.58 1.67

CB 0.42 0.24 0.33 4.92 362.78 1.61

CT 0.75 0.47 0.61 4.43 672.86 2.99

BPI 0.29 0.13 0.21 3.35 631.71 2.81

ISO(Panto) 0.30 0.14 0.22 3.88 515.41 2.29

ISO(Panto) 0.30 0.14 0.22 3.88 319.21 1.42

BPI 0.29 0.13 0.21 3.35 211.87 0.94

Summary


KN KN KN KN KN

CT 0.24 0.19 2.45 0.16 1.67

CB 0.47 0.38 1.46 0.32 1.61

CT 0.95 0.76 2.45 0.65 2.99

BPI 1.32 1.06 0.64 0.90 2.81

ISO(Panto) 1.01 0.82 0.78 0.69 2.29

ISO(Panto) 0.55 0.44 0.78 0.38 1.42

BPI 0.33 0.27 0.64 0.23 0.94

FIS

FGB

CT-BPI-ISO(Panto)

CB-CT-BPI

CT-CB-CT

CT-CB

BPI-ISO(Panto)

ISO(Panto)-BPI

ISO(Panto)-BPI

Equipment

Connected

))(

()(

2( 21

i

SBfi

i

WBfiWI

H

FHHK

H

FHHFK



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ATTACHMENT-5




c) Phase-to-Phase Spacing: 6.5 m



120 mm

c) Thickness : 6 mm

d) Weight 5.8 Kg/m




= 9.50 mm/m

h) Weight of Damper Material 1.83 Kg/m (Single 954 CARDINAL ACSR Conductor)




m/s

= 33.79 m/s

Now,


- Di4) (1)

where,




= 8.405595626 in4


(2)

= 58311.684 mm3

= 3.558375932 in3


) = 2.132 x 10-4

CDK

ZG

FV

2(D

O+2r

1) lbf/ft (3)

Where




KZ = Height and exposure factor (Cl.10.2, IEEE:605) = 1



= 75.59 mi/h



/ 107(D) lbf/ft (4)

where,







b) Outer dia.

CHECK FOR ALLOWABLE SPAN LENGTH of THE EQUIPMENT BUS AT TRANSFORMER & OHL BAY



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ATTACHMENT-5

where,






FT = {(FW + FSC)2

+ (FG)2

}1/2

(6)

= 17.52 lbf/ft




inch. (7)

where,






= 28501.07 mm



inch. (8)

Hence LD = 1908.480034 inch.

= 48475.39 mm



inch. (9)

Hence LD = 1499.771123 inch.

= 38094.19 mm




inch. (10)

where,





= 14483.29 mm



inch. (11)


= 17738.34 mm


= [8 (FA) (S) / (FT/12)]1/2

inch. (12)


= 14483.29 mm



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ATTACHMENT-5









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ATTACHMENT-6

'C' PHASE OF TRANSFORMER & OHL BAY

F P P P P F P F

3.75M 3.5M 8M

12M 10M 9M

DS CT CB BPI ISO BPI ISO

(Pantograph) (Pantograph)

Note : 1. Phase to Phase spacing = 6.5 m.



FSB = LE.FSC


L1(M) L2(M) (M) lbf/ft lbf KNDS 0.00 3.75 2.34 9.27 71.26 0.317

CT 3.75 3.50 3.16 9.27 95.97 0.427

CB 3.50 8.00 5.75 9.27 174.83 0.778

BPI 8.00 12.00 8.50 9.27 258.45 1.150

ISO(Panto) 12.00 10.00 13.75 9.27 418.08 1.860

BPI 10.00 9.00 7.13 9.27 216.64 0.964

ISO(Panto) 9.00 0.00 5.63 9.27 171.03 0.761

b. Bus wind Force

FWB = LE.FW



DS 0.00 3.75 2.34 7.48 57.53 0.256CT 3.75 3.50 3.16 7.48 77.48 0.345

CB 3.50 8.00 5.75 7.48 141.15 0.628

BPI 8.00 12.00 8.50 7.48 208.65 0.928

ISO(Panto) 12.00 10.00 13.75 7.48 337.53 1.501

BPI 10.00 9.00 7.13 7.48 174.90 0.778

ISO(Panto) 9.00 0.00 5.63 7.48 138.08 0.614


FWI = 1.776 x 10-5

CDKZGFV2

(Di+2r1)Hi lbf



DS 0.30 0.16 0.23 3.65 171.67 0.764

CT 0.75 0.47 0.61 4.43 550.32 2.448

CB 0.42 0.24 0.33 4.92 329.15 1.464 `BPI 0.29 0.13 0.21 3.35 143.86 0.640

ISO(Panto) 0.30 0.14 0.22 3.88 174.69 0.777

BPI 0.29 0.13 0.21 3.35 143.86 0.640

ISO(Panto) 0.30 0.14 0.22 3.88 174.69 0.777

6M 6M 10.5M

ISO(Panto)-BPI-ISO(Panto)

BPI-ISO(Panto)

BPI-ISO(Panto)-BPI


BPI-ISO(Panto)

CT-CB-BPI

Connected

Equipment

BPI-ISO(Panto)-BPI


CB-BPI-ISO(Panto)

EquipmentDS-CT

DS-CT-CB

Connected

DS-CT

CB-BPI-ISO(Panto)

CT-CB-BPI

DS-CT-CB

FSB

FWB

FWI



20/21

S (4)-G77700-S0019-L059-A

ATTACHMENT-6


FGB = LE.FG

`



DS 0.00 3.75 2.34 5.13 39.43 0.18

CT 3.75 3.50 3.16 5.13 53.10 0.24

CB 3.50 8.00 5.75 5.13 96.73 0.43

BPI 8.00 12.00 8.50 5.13 142.99 0.64

ISO(Panto) 12.00 10.00 13.75 5.13 231.31 1.03

BPI 10.00 9.00 7.13 5.13 119.86 0.53

ISO(Panto) 9.00 0.00 5.63 5.13 94.63 0.42


FIS =




= 5.91 inch



DS 0.30 0.16 0.23 3.65 219.92 0.98

CT 0.75 0.47 0.61 4.43 454.48 2.02

CB 0.42 0.24 0.33 4.92 490.20 2.18

BPI 0.29 0.13 0.21 3.35 559.95 2.49

ISO(Panto) 0.30 0.14 0.22 3.88 872.14 3.88

BPI 0.29 0.13 0.21 3.35 481.00 2.14

ISO(Panto) 0.30 0.14 0.22 3.88 408.40 1.82

Summary


KN KN KN KN KN

DS 0.32 0.26 0.76 0.18 0.98

CT 0.43 0.34 2.45 0.24 2.02

CB 0.78 0.63 1.46 0.43 2.18

BPI 1.15 0.93 0.64 0.64 2.49

ISO(Panto) 1.86 1.50 0.78 1.03 3.88

BPI 0.96 0.78 0.64 0.53 2.14

ISO(Panto) 0.76 0.61 0.78 0.42 1.82

BPI-ISO(Panto)-BPI


CB-BPI-ISO(Panto)

CT-CB-BPI

DS-CT-CB

DS-CT

BPI-ISO(Panto)

Equipment

Connected

FIS

FGB

))(

()(

2( 21

i

SBfi

i

WBfiWI

H

FHHK

H

FHHFK



21/21

S (4)-G77700-S0019-L059-A

ATTACHMENT - 7

SUMMARY OF FORCES ON EQUIPMENTS

FSB = Bus Short Circuit Force transmitted to bus support fitting

FWB = Bus Wind force transmitted to bus support fitting

FWI = Wind Force on InsulatorFGB = Effective weight of bus transmitted to bus support fitting

FIS = Total Cantilever load acting at the end of Insulator

400kV Switchyard

400kV Main Bus Bay


KN KN KN KN KN

ES 1.76 2.73 0.79 1.89 5.18

BPI 3.52 5.46 0.79 3.78 9.96

400kV Transformer,OHL Bay


KN KN KN KN KNDS 0.32 0.26 0.76 0.18 0.98

CT 0.43 0.34 2.45 0.24 2.02

CB 0.78 0.63 1.46 0.43 2.18

BPI 1.15 0.93 0.64 0.64 2.49

ISO(Panto) 1.86 1.50 0.78 1.03 3.88

400kV Bus Coupler Bay


KN KN KN KN KN

CT 0.95 0.76 2.45 0.65 2.99

CB 0.47 0.38 1.46 0.32 1.61

BPI 1.32 1.06 0.64 0.90 2.81

ISO(Panto) 1.01 0.82 0.78 0.69 2.29

Maximum forces in 400kV substation


KN KN KN KN KN

ES 1.76 2.73 0.79 1.89 5.18

BPI 3.52 5.46 0.79 3.78 9.96

DS 0.32 0.26 0.76 0.18 0.98

ISO(Panto) 1.86 1.50 0.78 1.03 3.88

CT 0.95 0.76 2.45 0.65 2.99

CB 0.78 0.63 1.46 0.43 2.18

Input for Structure Design

Equipment

ES 527.68 Kgs 192.68 Kgs

BPI 1014.95 Kgs 385.36 Kgs

DS 99.72 Kgs 17.88 Kgs

ISO(Panto) 395.47 Kgs 104.89 Kgs

CT 305.11 Kgs 66.00 Kgs

CB 222.28 Kgs 43.86 Kgs

Following Forces has been calculated:

Short Circuit (Tensile) Load of Connected Al.

Force Tube Bus

Based on the above results, the maximum forces on 400kV substation equiupments comparing all type of bays

have been tabulated in the following table :

Boru Bara Mekanik Hesaplar

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