welcome to htls conductor - :: ohm tekmin...
TRANSCRIPT
Welcome to HTLS ConductorWelcome to HTLS Conductor
1. Capacity Upgrading
2. HTLS Conductor
3. Experience
4. Summary
* HTLS Conductor: High Temperature Low Sag Conductor
Increase in demand for electricity is a big issue of the dayin many countries.
Very high cost to install new power lines
Too difficult to acquire tower sitesand right-of-way
Not enough time to built new lines
Popular feeling against construction ofhigh voltage overhead linesin urban and suburban areas
Very high cost to install new power lines
Too difficult to acquire tower sitesand right-of-way
Not enough time to built new lines
Popular feeling against construction ofhigh voltage overhead linesin urban and suburban areas
Re-conductoring of existing lineswith
High Temperature& Low Sag Conductor
Re-conductoring of existing lineswith
High Temperature& Low Sag Conductor
However, Solution
Background1. Capacity Upgrading1. Capacity Upgrading
Optimized HTLSC2. HTLS Conductor2. HTLS Conductor
Sag
CurrentCapacity Reliability
Installation
Economics
OptimizedHTLS Conductor
High current capacity
Low sag-tension property
Easy and rapid installationCompatible toexisting installation method
Long term reliability
Conductor costLabor costLow line loss
The cutting edge technologies of capacity upgrading apply to various types of conductor.
Developmental Trend
GAPConductor
Ampacity
1910 1960 1980 20001990
ACSRAAAC
Year1880
Copperx 1.0
x 1.5
x 2.0
GAPConductor
STACIRACSS
4
2. HTLS Conductor2. HTLS Conductor
Increase G.clearanceunder same capacity
Upratingwith equivalent sag
Upratingfor long span
Upratingwith increased sag
Application
x 1.0
x 2.0
x 1.5
x 1.55
x 1.0
Max.currentRatioConductorCore
90 oCAlCFCCACFR
210 oCSTAlINVARSTACIR
150 oCHi-TAlSteelHi-TACSR
150 oCTAlSteelTACSR
90 oCAlSteelACSR
Max.operating
temp.
MaterialConductor
1
2
3
4
5
Key materials
TACSR2
Hi-TACSR3
1ACFR5 * A key to abbreviations:
TAl: Thermal Resistant Aluminum-AlloyHi-TAl: High-tensile Strength Thermal Resistant Aluminum-Alloy STAl: Super Thermal Resistant Aluminum-AlloyINVAR: a kind of Ni-Fe AlloyCFCC: Carbon Fiber Composite Cable
STACIR Conductor2. HTLS Conductor2. HTLS Conductor
High Strength AWAluminum-clad Invar
High Strength AWAluminum-clad Invar
STALSuper Thermal Resistant
Al-Alloy Conductor
STALSuper Thermal Resistant
Al-Alloy Conductor
Ampacity Upgrading : x 2 ACSR
No limitation for application area: Heavy wind & snow, galloping area
Equivalent Sag-Tension Propertiesto conventional ACSR
No Modification & Reinforcementon Existing Tower
Easy Installation with Same Method& Equipment as ACSR’s
Reduced Design Time and Cost
High Reliability with Strong Track Record
* Invar is a 36%Ni-Fe Alloy
STAL Conductor
Comparison with other conductors
STAL wire containing Zr element has improved annealing resistance properties without loss of strength at high operating temperature.
Annealing Characteristics for Al Wire
0 100 200 300 400 50050
60
70
80
90
100
110
Res
idua
l stre
ngth
, %
Aging temperature, oCX1hr
HAL STAL
16.2~17.9
STAL
2.7
60
22.9~25.7
16.2~17.9
Hi-TALHAL
2.7
55
2.7
61
16.2~17.9
TAL
2.7
60
Tensile Strength(kgf/mm2)
Density(g/cm3)
Conductivity(%IACS)
STACIR
15090
Hi-TACSR(River-crossing)ACSR
150
Allo
wab
leTe
mp.
(oC
)
ApplicableConductor
Continuous
Emergency 240180120 180
TACSR
x 2.0x 1.5x 1.0Ampacity x 1.5
210
2. HTLS Conductor2. HTLS Conductor
* HAL : Hard-drawn ALuminum wire* TAL : Thermal-resistant ALuminum-alloy wire* Hi-TAL: HIgh-tensile strength Thermal-resistant ALuminum-alloy Wire * STAl : Super Thermal-resistant ALuminum-alloy Wire
INVAR Core
-100 0 100 200 300 4000
10
20
30
40
Dim
ensi
on C
hang
e,
m
Temperature, oC
x1/3
• Invar is a 36%Ni-Iron Alloy• Low thermal expansion coefficient
at high operating temperatureEquivalent Sag and Lower Tension
at High Operating Temperaturex2 CapacityUpgrading
-
400
800
1,200
1,600
2,000
0 50 100 150 200 250 300Cable Temperature - deg C
Cab
le S
ag -
mm
ACSR 795kCM ‘Drake’
STACIR 795kCM ‘Drake’
-
1,000
2,000
3,000
4,000
0 50 100 150 200 250 300Cable Temperature - deg C
Cab
le T
ensi
on -
kg
Tension vs Temperature *
Sag vs Temperature *
ACSR 795kCM ‘Drake’
STACIR 795kCM ‘Drake’
Thermal Expansion
Galvanize
d Steel wire
: 11.5x10-6 /
* Sag and Tension vs. Temperature Testwas performed at Kinectrics International Inc., Canada.
Al-clad Invar has low thermal expansion coefficient value (1/3 to steel wire) at high operating temperature (210oC).
Al-clad Invar Wire : 3.7x10-6/
Knee point temperature
2. HTLS Conductor2. HTLS Conductor
Appropriate design is needed to accommodate tohigh temperature and high-tensile strength.
Compression Type Dead-end Clamp
Fittings & Accessory
* Conductor dimension : 410mm2
RemarkType of Fittings
Armor grip or wedge typeare not recommendable.Compression type
with larger volume
Dead-end clampwith Jumper terminal
Description
Armor grip type isnot recommendable.
the same asthose used for ACSR
Suspension clamp
Joint sleeve
Bundle spacer
Vibration damper
insulatorACSR
STACIR
Length (L)
590
675
Diameter (D)
48
52
(Unit: mm)
2. HTLS Conductor2. HTLS Conductor
The Installation Methods for STACIR areexactly the same as those used for ACSR (Stringing, Sagging & Clamping) .
Installation2. HTLS Conductor2. HTLS Conductor
Enough time for shut down
1. Determine shut-off periodnot considering electric load
( One HTLS circuit has double ampacity)
2. One HTLS circuit : Increasing capacityOther circuit : Shut down
3. Start replacement work
Enough time for shut down
1. Determine shut-off periodnot considering electric load
( One HTLS circuit has double ampacity)
2. One HTLS circuit : Increasing capacityOther circuit : Shut down
3. Start replacement work
Not enough time for outageNeeded Rapid installation Work
1. Determine outage periodconsidering electric load (ex. straight holidays)
2. One circuit : Shut downOther circuit : Operation
3. Installation Work should be finished quickly
Not enough time for outageNeeded Rapid installation Work
1. Determine outage periodconsidering electric load (ex. straight holidays)
2. One circuit : Shut downOther circuit : Operation
3. Installation Work should be finished quickly
Fist Circuit ReplacementFist Circuit Replacement Second Circuit ReplacementSecond Circuit Replacement
STACIR can reduce outage time in Semi live line installationbecause of high efficiency on installation work.
Finished Installation workin 1 month
Finished Installation workin 1 month
2circuit/ 2conductor,
30 r.kmInstallation of First Circuit in 1 month
Installation of First Circuit in 1 month
Installation2. HTLS Conductor2. HTLS Conductor
Capacity UpgradingCapacity Upgrading
BuildNew Line
BuildNew Line
Replacementby HTLSC
Replacementby HTLSC
Required
Required
Low priceRequiredRequiredRequired
Required
High Cost
Required
Grounding
Line Accessories
Conductor & Ground wire4.1 Conductor Furnishing4.2 Stringing4.3 Ground-wire Furnishing4.4 Ground-wire Stringing
Tower Foundation
Cost of right of way
Preliminary work
ConstructionCost
Not RequiredPartially Required
High priceRequired
Not RequiredNot Required
Not RequiredNo Cost
Not Required
HighLowkWh LossOperationCost
LowHighCost due to Differenceof Counstruction Period
OpportunityCost
6 Months(Short Period)18 MonthsBased on 30 route.kmBuild
Period
Small Cost(same as ACSR)Small-Maintenance
CostReplacement
By HTLSC
Construction
Maintenance
Operation(kWh Loss)
100%
53%
Material
47% Down
Constructionof New Line
Comparative Cost Analysis(Operation Period : 30 Years)
Economic Evaluation2. HTLS Conductor2. HTLS Conductor
PRELIMINARY
PRELIMINARY
KEPCO / Korea
Increasing demand for electricitydue to rapid growth of industryand factory automation
Demand for peak load rateby 9% every year
Very high cost to acquirenew tower site and right-of-way
Not enough timeto construct new power line
Increasing concerns about environmental preservationand popular enmityto overhead power lines
: Sinnamwon T/L (June 2000)(345kV, 2cct, 17km)
Unit: circuit km
345kV154kVTotal
High Capacity.Conductor
3831,3601,743
All lines were installedand run very well without any problems
Acquire certification of KEPCO
Customer Problems
Ampacity[A/cond.]
* Condition : Zone , Span 300mOperating Temp.:ACSR 90 , STACIR 210
ACSR480 x2B
Sag [m]
Tension[kgf]
918
10.21
4,140
Existing
STACIR410 x2B
1,707
9.79
4,140
LGC Proposal
Voltagegrade
KEPCO Experience
KEPCO / KoreaKorea Electric Power Corporation
KEPCO / KoreaKorea Electric Power Corporation
3. Experience3. Experience
Frequent “Black-out” in Kuala Lumpurhas been recurringHigh cost and difficulty to acquireright-of-way & erection / installationCould be completedwithin short period of time (2month)on full turnkey built
Technical & Commercial Proposal: June 2003Scope: Conductor & FittingsContract : 1st 47km (Dec. 2003)
2nd 294km (Jul. 2005)3rd 53km (Dec. 2006)
Installation for 1st Project :Jan. 30, 2004 ~ Feb. 29, 2004
TNB / MalaysiaTenaga Nasional Berhad
TNB / MalaysiaTenaga Nasional Berhad
: Port Klang P/S~Kapar S/S etc.(275kV, 2cct, 4km)
ACSR
400 (Zebra)
719Amp/cond.
STACIR410
1,584Amp/cond.
* Operating Temp.: ACSR 75STACIR 183
TNB / Malaysia3. Experience3. Experience
ENEL / ItalyENDESA / Spain
Rapid increase overloaded line
Need to exchange existing line for
Upgrading conductor
Technical & Commercial Proposal: December 2002
Delivery : April 2003
Installation Start : September 2003
Customer Problems Existing LG’s Proposal
ENEL / ItalyEnel Distribuzione SpA
ENEL / ItalyEnel Distribuzione SpA
: Model section (April 2003)(Cable Length, 51km)
STACIR
240
1,207Amp/cond.
* Condition : wind pressure 88kg/safety factor 2.0
Operating Temp.: ACSR 90STACIR 210
Rapid increase
in the demand for electric power
Technical & Commercial Proposal: November 2001
Delivery : September 2002
Installation : December 2002
Under Field Test : January 2003
ENDESA / SpainEmpresa Nacional de Electricidad S.A,
ENDESA / SpainEmpresa Nacional de Electricidad S.A,
: Field Trial Test (Nov. 2001)(110kV, 2cct, 3km)
Customer Problems
ACSR/AW477MCM(Hawk)
606Amp/cond.
Existing
STACIR240
1,207Amp/cond.
LG’s Proposal
3. Experience3. Experience
Increasing demand for
electricity due to rapid
growth of industry and
factory automation
Demand for peak load rate
High cost to acquire new
tower site and right-of-way
Not enough time to
construct new power line
• LILO of one circuit of 400kV DC, Dadri-Ballabhgarh New T/L of 30km• Invar Moose Conductor Package associated with high capacity
East- North Interconnector-II (Award No.C-41408-L175/NOA-I/1403)
Customer Problems
Ampacity[A/cond.]
* Condition : Span 400mOperating Temp.:ACSR 75 , STACIR/AW 210
ACSRMoose x 2B
614
Existing
STACIR/AWMoose x 2B
1,700
LSC Proposal
Power Grid / IndiaPower Grid / India
Power Grid / India
Technical Proposal: December 2002Scope: Conductor & FittingsContract: September 2004Q’ty of conductor: 396kmType Test: Successfully passed
(August 2005)Delivered: September 2005
3. Experience3. Experience
LILO of one circuit of 400kV D/CDadri-Ballabhgarh New Transmission Lineat New Delhi (Maharani-Bagh) Sub Station Type Test Certificate
Power Grid / India3. Experience3. Experience
Increasing demand and investmentof electricity for Beijing OlympicsHigh cost and difficulty to acquireright-of-way & erection / installationCould be completedwithin short period of time
ChinaChina• ’04: 1st BukSin-Bukan T/L (110kV, 2cct, 4.3km)• ’05: 2nd WuBei-Wu T/L (220kV, 2cct, 4.5km)• ’06: 3rd Babao-Shangchun T/L (220kV, 2cct, 55km)• ’07: 5 Packages for GZPSC, KSPSC, KEPC & NCIP (220kV, 349km)
NCIP, CPC, GZPSC, KSPSC & KEPC / China
2008 Beijing Olympics
Capacity upgradingby replacement ofthe existing ACSR
with Invar conductor
3. Experience3. Experience
PGCB / Bangladesh
: 230/132kV sub-station at Tongi & Hasnabadand 132/33kV sub-station at Kalyanpur
PGCB / Bangladesh (SIEMENS)Power Grid Company of Bangladesh
PGCB / Bangladesh (SIEMENS)Power Grid Company of Bangladesh
<Layout Plan & Sectional Elevation>
ACSR400mm2 Zebra
737A
STACIR400mm2 Zebra
1,645A
3. Experience3. Experience
QPPL / Philippines
: 230kV Mauban Plant-Tayabas Substation T/L (31km)- Under F/S and
QPPL / PhilippinesQuezon Power Philippines Co. Ltd. (IPP)
QPPL / PhilippinesQuezon Power Philippines Co. Ltd. (IPP)
3. Experience / Case Study3. Experience / Case Study
Capacity Upgradingby replacement
of the existing ACSR conductorwith STACIR 410mm2 !
A. Existing Power Plant Generation (Unit 1)1. Plant Capacity : 600MW2. Transmission Line:
a) Line Voltage: 230kVb) Line Length: 31 kmc) Structure Type:
Lattice Steel Towers, Double Circuite) Line Conductors:
2 x 795 kCM ACSR "Condor"
B. Power Plant Expansion (Unit 2)1. Plant Capacity : 600MW
Build New Transmission ?ROW anticipated problems
& insurgency situation in the areas.
Line Capacity > 1,200MW !
Mauban Plant
230kV Mauban -Tayabas T/L
Tension Tower
Tech. Proposal: April 2007Approved by DENR: May 2007Site Survey: June 2007Approved by TransCo: Sep. 2007Contract: January 2008Delivery: April 2008Reconductoring: May ~ June 2008
STACIR Conductor has more than double ampacity of conventional ACSR
STACIR Conductor has equivalent sag-tension properties to conventional ACSR
Conventional fittings and accessories for ACSR can be usedfor STACIR Conductor except compression fittings
Same installation method as conventional ACSR is applied for Invar Conductor
STACIR Conductor has high long-term reliability with strong track record
Double ampacity uprating with STACIR Conductoron the existing towers
Most power utilities do use STACIR Conductor for their uprating project !
4. Summary4. Summary
Thank You !Thank You !
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