Gdpack 40.5kVMV-LV Prefabricated Substation Steel Housing Primary Voltage: up to 40.5kVPower Rating: up to 3500 kVA
Technical Data Sheet
DefinitionGDpack is a type tested MV/LV prefabricated substation comprising of an enclosure containing Medium Voltage switchgear, Distribution transformers, Low Voltage switchboards, connections and auxiliary equipment to transform energy from medium to low voltage systems .
Features•Type tested per latest GB17467-2010•Internal Arc fault Type AB tested at 20 kA, 1second•High level of safety for equipment and personnel•All equipment inside GDpack are type tested•Engineered footprint meeting required clearance standards•Optional oil collection pit underneath the transformer
•Steel housing•Can be delivered with transformer installed•Engineered for smooth air flow and natural cooling•Locking system for all doors to prevent un-authorized entry of personnel•Stainless steel hinges for corrosion resistance•No access to live parts
Layout
Equipment DescriptionTransformer GDpack is designed and manufactured to accept oil or dry
transformers.
Medium Voltage GDpack can be provided with different options of Medium Voltage 40.5kV Switchgear from our SF6 insulated compact secondary switchgear portfolio.
Low Voltage The LV compartment could accommodate an LV panel with ACB or MCCB’s and various number and ratings of outgoing feeders depending on transformer size and customer needs. Special low voltage equipment is available upon request.
Primary Voltage: 40.5kVPower Rating: Up to 3500 kVA GDpack
Standard Models
Model Number Max. KVA
kV Maximum Number of MV Switchgear panels
MV Switchgear Insulation Type
GDpack 20NS 2000 12, 24, 36 & 40.5
Up to 4
Gas
GDpack 35NS 3500 12, 24, 36 & 40.5
Up to 4
Gas
Additional equipment• Devices for metering and control circuit • SCADA ready for easy connection to any SCADA System through standard
communication protocols.• Power Factor Correction Panel• Remote Terminal Unit (RTU) to monitor the CSS and store data for operation,
maintenance and fault analysis. Local and remote monitoring operations available.
Installation
• Factory delivers a factory tested solution to the installation site, and provides all necessary lifting device for moving the substation.
• No complicated civil engineering job is needed in advance or during the installation.• Only a pit has to be excavated and the substation has to be placed into this installation
pit.• When the substation is in its place, than the commissioning can be started after the
incoming and outgoing cables had been connected.• For detailed information please see our installation manual.
Primary Voltage: 40.5kVPower Rating: Up to 3500 kVA GDpack
Technical Data Sheet Number: DS.CSS.S.M_03
All information subject to change without notification
Technical Data
Description UniPack Compact Secondary Substation – Mercury layout
Max KVA 2000 3500
Type of layout Mercury 20NS Mercury 35NS
Rated voltage (kV) 12/24/36/40.5 kV
Short circuit withstand current of internal earthing network
6kA/1s, upon request 20kA/1s
Substation dimension (with Gas insulated MV swgr. -LxWxH) in mm.
3450x2450x2750 4400x2450x3050
Weight of substation excluding transformer (approx.) in kg.
2700 3200
Transformer compartment dimension (LxWxH) in mm 2400x1800x2400 2850x2400x2700
Maximum transformer load losses/ No load losses in watts
14300/2500 30000/4000
Transformer compartment IP protection degree (min/max)
IP 23D / IP 33D
MV/LV IP compartment protection (min/max) IP 23 / IP 54
CSS Enclosure Thermal class (min/max) 20K / 10K
Maximum dimension of MV compartment 4-way SafeRing / SafePlus 40.5kV
Maximum dimension of LV compartment 10 pcs of 630A MCCB 10 pcs of 630A MCCB
MV cabling
The connecting can be AL or CU acoording to customer request. If not specified then the cross section is selected to fulfill the
short circuit requirement of the arrangement.
MV terminations
The connecting cables can terminated with premolded/cold shrink/heat shrink cable terminations according to customer’s
requestLV connection to transformer Cable or busbar according to the rated power of the transformer
Rated current of LV panel, A 2000 3200
Rated short circuit withstand capacity of LV Busbar system, kA/1s
50 kA/1s 50 kA/1s
Primary Voltage: Up to 40.5kVPower Rating: Up to 3500 kVA GDpack
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