KHALDA PETROLEUM COMPANY 11 KV OHTL AT KAHRAMAN OIL FACILITY
KHALDA CONCESSION MAP Jf 31 30’
M E D I T E R R A N E A N
Development Lease Additions
Je
S E A
MATRUH
Khalda Offset New Concession Apache New Concession
Jd
Oil Pipline Gas Pipline Cond. Pipline GAS OIL FIELDS FIELDS GAS
Jb
Ja
RAS KANAYES
RAS EL HEKMA
OBAIYED
50 Km/32” MATRUH ALEXANDRITE UMBARKA
Ij
SHUSHAN-C
MATRUH MIHOS
KHALDA OFFSET
REH
TAREK
IMHOTEP
WEST KALABSHA
UMBARKA
KAHRAMAN
ATOUN
KAHRAMAN S
Ih
FALAK
QASR
WAHA-1
30 30’
MUNTAG A
SAFIR N.
SHROUK
SAFIR NADER
SHROUK E.
KHALDA
ANDALUS-1 FAGHOUR-5
BUCHIS
Ie
KHALDA OFFSET
FAGHOUR
Id
WEST KANAYES
NEITH HEQET
KHALDA OFFSET
Ic
QA
Ib 26 00’
7
8
9
N. ALAMEIN
EL-AMERYA
HAYAT-YASSER
OZORIS
SHUSHAN-A KALABSHA
If
AKIK TANZANITE
232K m/34 ”
KENZ
KHALDA OFFSET
KHNUM-1
A
KHALDA OFFSET
SALAM N SALAM
SYRAH
SELKI T
Ig
EL HAMR 6” 166 Km/1
MELEIHA
TUT
60 Km/12”
WEST MEDITERRANEAN
KHALDA
HATHOR SHUSHAN-B KHEPRI - SETHOS RENPET
6”
Ii
IMHOTEP
SHAMS
Daba a
NORTH TAREK
/ Km 17
37 K m/2 2”
PLANT
31 00’
RAS KANAYES
1.6K m/1 2”
Jc
10
11
A TT
RA
DE
E PR
13
14
15
16
17
18
19
20
21
N IO
0
27 00’
12
SS
Km 50
28 00’
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
OHTL HESTORY IN KPC WOODEN POLES WOODEN CROSS ARMS WOODEN TRANSFORMER BANK NORMAL PIN INSULATORS
WOODEN POLES & CROSS ARM
SCOPE AND GENERAL REQUIREMENTS The purpose of this project is to provide the required electrical power to the oil wells at Kahrman field of Khalda Petroleum Co. O.H.T.Line will be fed from one or two gas turbines each 5.5 MW , 11 kV , 50 Hz The design and engineering of the O.H.T.L shall satisfy all requirements of the local and national authorities Codes & Standers.
Main Hardware OHTL Materials Steel Poles Hot Dip Galvanized Cross Arms Insulators ACSR Wire Conductors Stay Guys Cut Out Fuses Surge Arrestors Transformer Banks Accessories
Steel Poles Hot Dip Galvanized Type A (Normal Type) Type B (Tr. Bank) Type C (Road Crossing) Type D (H-Pole) T - Poles Type
Steel Pole Type A & B
Steel Poles Type C & D
T - Pole
FABRECATION DETAIL
TRANSFORMER BANK
STEEL CROSS ARM
HOT DIP GALVANIZED STEEL CROSS ARM BOX SECTION TYPE
PIN TYPE INSULATOR The insulation system for the transmission line shall be of aero-form type antipollution insulators and shall have values in excess of the leakage distance, 50 Hz wet, and Critical Impulse flashover specified in insulators specifications.
PIN TYPE INSULATORS
STEEL PIN
ACSR CONDUCTORS Conductors are selected to be ACSR DOG type(118.5 mm2) ( BS 215 part 2 code word ), with span (75 m), wind velocity (120 km/h) for the main 3 – Phase Line Conductor is Selected to be ACSR RABBIT type for the 4th wire to be used as a Ground (61.7 mm2) ( BS 215 part 2 code word )
Conductor specifications Type
ACSR
Code Word
DOG
Nominal Cross Section ,mm2
118.5
Nominal aluminium area, mm2
105
Nominal steel area, mm2
13.5
Number of aluminium wires
6
Number of steel wires
7
Diameter of aluminium wires , mm
4.72
Diameter of steel wires, mm
1.57
Overall Diameter, mm
14.15
Weight of Conductor , kg/km
394
Ultimate tensile strength , kN
32.7
Modules of elasticity , N/ mm2 Coefficient of thermal expansion ,per oC
75511 0.0000198
Wind pressure on conductor, N/ m2
775
Maximum conductor temperature , oC
75
Span , m
100
STAY GUYS Guys are installed to balance line tensions and are therefore appropriate where lines begin, end, or where lines change direction. Most installations utilize down guys, wherein the guy wire is led away from the pole at a 45 degree angle down to an anchor. Head guys will be provided at heavily loaded corners to reduce tension in a corner span and strain on the corner pole. Dead-end guys will be provided in long straight lines
CUTOUT FUSE & SWITCH Medium-voltage fuses and cutouts shall comply with NEMA SG 2 and shall be of the open type construction rated 15 kV and of the ultra-heavy duty type
CUTOUT FUSE
FUSE LINK & KNIF SWITCH
Lightning Performance and Grounding All transmission structures will be individually grounded through a dedicated earth driven grounding system composed of ground rods and / or buried counterpoise. The maximum acceptable resistance measurement of this grounding system is 25 Ohms. These resistance requirements are to assure acceptable lightning performance on the line as well as provide for the safe grounding of the line by construction and maintenance forces. To assure acceptable lightning performance, a limited application of transmission lines arresters will be utilized.
SURG ARRESTERS
ACCESSORIES & TOOLS TOP TIE HIGH VOLTAGE SPECIAL TOOLS
SPECIAL TOOLS
ACSR CONDUCTOR W/ARMOR ROD
TOP TIE
ACCESSORIES
HARD WARE MATERIALS