mobile substation guide - medelec switchgear · 11/6/2016 · mobile substations by their nature...
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Certificate Number FM35831
MOBILESUBSTATIONGUIDE
Mobile substations by their nature offer the flexibility and the opportunity to ensure a reliable energy supply. Mounted on a trailer, their compact and mobile design allows for the substation to be easily transported and provides a quick solution of fast integration to the system. The end product offers a complete substation assembly and is ready to connect, “plug and play.”
The module contains all of the necessary equipment required for a complete substation: a power transformer bay fitted with a power transformer, GIS or hybrid GIS switchgear, AIS switchgear, protection and control equipment, as well as AC and DC auxiliary supplies.
The trailer’s external dimensions are sized to comply with road and sea transportation regulations. Its base-frame is designed to ensure the protection of the switchgear from structural constraints despite transportation on rough road surfaces.
WHY THE NEED FOR MOBILE SUBSTATION?
The main applications of mobile substations are:
For emergency scenarios
• In the event of natural disasters, where energy supply is vital
• During maintenance procedures andemergency repairs
• In the event of substation equipment failure
As temporary solutions
• For loads which may be seasonal • For large events where power demand by the
local substation is too high such as exhibitions• For when a fixed substation construction takes
a long time, and immediate supply is required
Medelec Switchgear Ltd
Mobile Substation Guide
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• Maximum operator safety • Easy interface• Minimum site work • Maximum mobility for transportation
and relocation
• Resistant to harsh weather conditions • Limited footprint required• Fast alternative reliable power supply • Cost effective
THE BENEFITS INCLUDE:
LIMITEDFOOTPRINTSAFE
FAST
RELIABLE
CUSTOMER BENEFIT
Medelec Switchgear Ltd
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RELIABLE ENERGY SUPPLY WHEREVERAND WHENEVER NECESSARY
Power Transformer
Power Up to 10MVA
Type Oil Immersed
Voltage Ratio 66/11kV 30/11kV
Cooling ONAN
Vector Group Dyn11
Short Circuit Impedance 8%
Voltage Regulation NLTC/OLTC
Switchgear Hybrid GIS/AIS type
Rated Voltage 72.5kV 36kV 12kV
Type Hybrid GIS, Combined Disconnector, Earth Switch and Circuit Breaker, Outdoor
Hybrid GIS, Dead Tank Circuit Breaker,
Outdoor
Air Insulated Switchgear, Indoor
Manufacturer ABB, PASS M00 Schneider Electric, VOX Medelec, MSGair
Rated ImpulseWithstand Voltage
325kV 170kV 75kV
Rated Normal Current up to 1250A
Rated Breaking Capacity up to 31.5kA
Rated Frequency 50Hz
Surge Arresters Metal Oxide Arrestor, (ZnO), Polymeric Housing suitable foroutdoor application, Discharge current, 10kA
Instrument Transformers Voltage transformers and Current transformers forprotection and measurement circuits.
Protection and Control Cubicle Differential/Overcurrent/Earth Fault, Integration toSCADA system can be provided
Automatic Voltage Regulator MR, Provided for 10MVA
Auxiliary Circuit
Auxiliary Transformer 50kVA, 11/0.4kV
Auxiliary Transformer Protection Lucy, MK5, SFS1E, Fuse Switch
DC System 110Vdc, 20A, 55AH
CHARACTERISTICS OF MOBILE SUBSTATIONS
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Other Components AC/DC Distribution, Air Conditioning System, Fire Detection System.
Factory Tests The Complete Mobile Substation is Pre-tested before Delivery Including Functions of all Equipment and Protection system.
Dimensions
Trailer (L x W x H) 20 x 3 x 4.6 (m)
Container for Indoor Equipment 4.6 x 3 x 3 (m)
The above ratings and dimensions are typical, other systems can be designed upon customer needs and requests.
Medelec Switchgear Ltd
Mobile Substation Guide
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HEAD OFFICE & FACTORYBLB033, Bulebel Industrial Estate, Zejtun ZTN 3000
P.O. Box 20, Paola PLA 1001, Malta.T. (+356) 21693750 - F. (+356) 21693754 - E. info@medelec.com.mt
TRIPOLI OFFICEMadaris El Funun W Assanaqa
Building 82, Flat 9, 24th December Street, P.O. Box 82118, Tripoli, Libya.T. & F. (+218) 21 4444050
www.medelec-switchgear.com BD
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