Charikar and Doshi 220/20 kV Substations - Afghan
Charikar and Doshi 220/20 kV Substations - Afghan
Charikar and Doshi 220/20 kV Substations - Afghan
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<strong>Charikar</strong> <strong>and</strong> <strong>Doshi</strong><strong>2<strong>20</strong></strong>/<strong>20</strong> <strong>kV</strong> <strong>Substations</strong>Michael A BreckonJuly <strong>20</strong>05
Location of <strong>Doshi</strong> <strong>and</strong> <strong>Charikar</strong>
DSH
Background - <strong>Doshi</strong> Substation• <strong>Doshi</strong> is a <strong>2<strong>20</strong></strong>/<strong>20</strong> <strong>kV</strong> Substation for distributing power at <strong>20</strong> <strong>kV</strong>. Will be supplied by the PUL to CHM <strong>2<strong>20</strong></strong> <strong>kV</strong> dble cct Tx line Will provide <strong>20</strong> <strong>kV</strong> to households within approximately 60 km radius of<strong>Doshi</strong> Will have a single 5 MVA <strong>2<strong>20</strong></strong>/<strong>20</strong> <strong>kV</strong> transformer installed• 5 MVA <strong>2<strong>20</strong></strong>/<strong>20</strong> <strong>kV</strong> Transformer will enable: 8,300 households to be supplied at 600 VA per household peak dem<strong>and</strong>(ADMD) 5,000 households to be supplied at 1,000 VA per household peak dem<strong>and</strong> These figures exclude possible industrial, commercial <strong>and</strong> agriculturalload
<strong>Doshi</strong> Single Line Diagram
<strong>Doshi</strong> Substation – Key Features• Outdoor <strong>2<strong>20</strong></strong> <strong>kV</strong> double bus, conventional technology, lowcost with good reliability <strong>and</strong> serviceability• Single <strong>2<strong>20</strong></strong>/<strong>20</strong> <strong>kV</strong> 5 MVA transformer with space allowed forup to 2 x 16 MVA transformers to be added at a later date• Indoor <strong>20</strong> <strong>kV</strong> metalclad bus <strong>and</strong> switchgear, to be located in aswitchgear room adjacent to the control room• Control room includes heating <strong>and</strong> cooling, lighting, water <strong>and</strong>sanitary supply• Full SCADA <strong>and</strong> remote CSCS control allowed for, withnetwork communication via OPGW• Technical specifications, schedules of quantities, technicalschedules <strong>and</strong> budget cost have been prepared
<strong>Doshi</strong> Substation – Estimated CostItemCost USD million• <strong>2<strong>20</strong></strong> <strong>kV</strong> Switchgear 1.5• Power Transformer 0.3• <strong>20</strong> <strong>kV</strong> Switchgear 0.2• Civil Works 2.5• Installation 0.4Total 6.3
CHK
Background – <strong>Charikar</strong> Substation• <strong>Charikar</strong> is a <strong>2<strong>20</strong></strong>/<strong>20</strong> <strong>kV</strong> Substation for distributing power at <strong>20</strong> <strong>kV</strong>. Will be supplied by the PUL to CHM <strong>2<strong>20</strong></strong> <strong>kV</strong> dble cct Tx line Will provide <strong>20</strong> <strong>kV</strong> to households within approximately 60 km radius of<strong>Doshi</strong> Will have two 16 MVA <strong>2<strong>20</strong></strong>/<strong>20</strong> <strong>kV</strong> transformer installed• 2 x 16 MVA <strong>2<strong>20</strong></strong>/<strong>20</strong> <strong>kV</strong> Transformers will enable: 53,000 households to be supplied at 600 VA per household peakdem<strong>and</strong> (ADMD) 32,000 households to be supplied at 1,000 VA per household peakdem<strong>and</strong> These figures exclude possible industrial, commercial <strong>and</strong> agriculturalload
<strong>Charikar</strong> – Single Line Diagram
<strong>Charikar</strong> Substation – Key Features• Outdoor <strong>2<strong>20</strong></strong> <strong>kV</strong> double bus, conventional technology, lowcost with good reliability <strong>and</strong> serviceability• Two <strong>2<strong>20</strong></strong>/<strong>20</strong> <strong>kV</strong> 16 MVA transformers with a capacity to besubsequently up-rated as the load develops• N-1 Reliability - Failure of one transformer will not mean a loss ofsupply• Indoor <strong>20</strong> <strong>kV</strong> metalclad bus <strong>and</strong> switchgear, to be located in aswitchgear room adjacent to the control room; two incomers<strong>and</strong> two local service transformers <strong>20</strong>/0.4 <strong>kV</strong> (n-1 reliability)• Control room includes heating <strong>and</strong> cooling, lighting, water <strong>and</strong>sanitary supply• Full SCADA <strong>and</strong> remote CSCS control allowed for, withnetwork communication via OPGW• Technical specifications, schedules of quantities, technicalschedules <strong>and</strong> budget cost have been prepared
<strong>Charikar</strong> Substation – Estimated CostItemCost USD million• <strong>2<strong>20</strong></strong> <strong>kV</strong> Switchgear 1.5• Power Transformer 0.5• <strong>20</strong> <strong>kV</strong> Switchgear 0.4• Civil Works 2.5• Installation 0.4Total 6.8
Questions?michael.breckon@maunsell.com
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