mobile substation - trademalta...components –11kv switchgear manufacturer: medelec rated voltage:...
TRANSCRIPT
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Mobile Substation
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Mobile Substation
Main Features
Mobile & complete substation assembly on trailer
Easy Transportation
Ready for grid connection
Provides reliable energy supply
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Mobile Substation
Applications
Emergency Scenarios
Maintenance procedures and repairs
Equipment failure in substations
Natural disasters
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Mobile Substation
Applications
Temporary Solutions
For seasonal loads
Large events with high electricity demand
Temporary supply for long time projects
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Mobile Substation
BenefitsMaximum operator safety
Easy Interface
Minimum site work
Maximum mobility for transportation
Resistant to harsh weather conditions
Limited footprint required
Fast alternative reliable power supply
Cost effective
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Typical Substation & Ratings
SLD, 66/11kV, 5MVA, 10MVA
VT SA CB, DS, ES 66kV T 11kV
11kV Circuits
FS
AT
LV Circuits
Mobile Substation
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Components 66kV (1)
Combined CB, Disconnector & Earth Switch
Manufacturer: ABB
Rated Voltage: 72.5kV
Rated Current: 1250A
Rated Short Time Withstand
Current: 31.5kA, 3s
Mobile Substation
PASS M00
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Components 66kV (2)
Power Transformer on Trailer
66/11kV
30/11kV
5MVA, 10MVA
Manufacturer ABB or equivalent
Type Oil Immersed
Vector Group DYN11
Cooling ONAN
5MVA 10MVA
Short Circuit Impedance
7% 8%
No Load Loss N/A 14kW
Load Loss N/A 70kW
Tap Changer NLTC OLTC
Mobile Substation
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Components - 30kV
Circuit Breaker
VOX – Dead Tank outdoor CB GIS
Manufacturer: Schneider Electric
Rated Voltage: 36kV
Rated Current: 1250A
Rated Short Time Withstand Current: 31.5kA, 3s
Mobile Substation
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Components – 11kV
Switchgear Manufacturer: MedelecRated Voltage: 12kV
Rated Current: 630A
Rated Short Time Withstand Current: 25kA, 3s
No of Circuits:
1 Inc + 2 Outgoing (5MVA)
1 Inc + 3 Outgoing (10MVA)
MSGairSwitchgear
Mobile Substation
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Components
Power Transformer Protection & Control
Freestanding Cubicle
600x600
Manufacturer: Medelec
Protection: Main Transformer Differential protection
Protection: Backup Multifunction Bay, Overcurrent & Earth Fault
Automatic Voltage Regulation
Mobile Substation
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Components
Surge Arrestors
PBA3-78,
PBA2-39
Manufacturer Tyco or equivalent
66kV 30kV
Rated Voltage Ur 78kV 39kV
Continuous Operating Voltage
62.4kV 31.2kV
Nominal Discharge Current
10kA
Short time withstand Current
65kA
Mobile Substation
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Components
Auxiliary Circuit,
TransformerManufacturer Matelec or
equivalent
Type Oil Immersed
Voltage ratio 11/0.4kV
Cooling ONAN
Power Rating 50kVA
Short Circuit Impedance
4%
No Load Loss 140W
Load Loss 1000W
Tap Changer NLTC
Mobile Substation
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Components
Auxiliary Circuit Protection
Fuse Switch Manufacturer: Lucy Electric
Type: Scimitar MK5 SFS1E
Rated Voltage: 12kV
Rated Current: 200A
Breaking Capacity: 20kA
Fuse Rating: 6.3A
Mobile Substation
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Components
Auxiliary Circuit
DC SystemManufacturer: Emerson or equivalent
Input Voltage: 230Vac
Type: Constant Voltage
Nominal System Voltage: 110Vdc
Nominal Charging Current: 20A
Battery Capacity: 55AH
Mobile Substation
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Prefabricated HousingLocally manufactured
Steel frame with sandwich panels complete with
2 doors and 6 removable panels
Dimensions:
L = 4600 mm
W = 3000 mm
H = 3000 mm
Mobile Substation
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Trailer CharacteristicsDimensions
Length = 20m
Width = 3m
Weight = 12 Tonnes
Max total weight (with load) = 55 tonnes
Mobile Substation
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THANK YOU!
Mobile Substation