Phone:
(701)814-6992
Physical address:
6296 Donnelly Plaza
Ratkeville, Bahamas.
PV Step-up Substation
The YBM photovoltaic step-up station connects inverter output to a collection network through a transformer and the specified switching and distribution equipment. Review the electrical interfaces and site layout before selecting the arrangement.
Photovoltaic step-up substation
YBM station and enclosure views
YBM enclosure details, open transformer and cabinet arrangements, and switchgear compartments.
Station product
YBM seriesYBM / PV STEP-UP
YBM Prefabricated PV Step-up Substation
The outdoor package brings a step-up transformer together with high-voltage switchgear and low-voltage equipment for a PV collection connection. Define the equipment schedule, access and cable routes for the selected project arrangement.
Station details
YBM PV step-up substation
Enclosure design from three sides
Long-face doors, end panels and corner details of the gray enclosure design. Specify door positions, ventilation and internal equipment for the station layout.
The YBM package brings high-voltage switching, a transformer and low-voltage equipment into the PV step-up scope. Define the voltage ratio, transformer capacity and protection scheme from the plant design.
Photo 1 of 3
Transformer and switchgear arrangements
Transformer and cabinet arrangement, with a separate switchgear interior.
Define the station package
- Inverter sideProvide AC output voltage, generation-block power and inverter count.
- Collection sideState collection voltage, feeder arrangement and protection boundary.
- Transformer and equipmentConfirm transformer capacity, cooling, switchgear and low-voltage equipment on the single-line diagram.
- Site and enclosureShare cable approaches, ventilation, access, lifting and foundation requirements on the layout drawing.
Station construction
Define the equipment and site boundary
Coordinate the transformer, switching equipment, cable paths and maintenance access with the plant layout.
YBM station package
PV step-up assembly
An open arrangement places the step-up transformer beside equipment cabinets. Specify switching, protection and cable interfaces for the plant design.
- Equipment grouping
- Coordinate the step-up transformer, high-voltage switchgear and low-voltage equipment against the single-line diagram. Confirm the protection, metering and control functions required for the project.
- Physical layout
- For enclosed and open assemblies, coordinate door positions, cooling, cable entries and service clearances on the general arrangement.
Specification process
Specify a PV step-up station for your plant
Use the inverter block data, collection scheme and site plan to define the electrical duty, package layout and enquiry scope.
From plant brief to station proposal
- 01
Set the electrical interfaces
Record inverter AC output, collection-side requirements and each circuit’s switching, protection and metering duty.
- 02
Define the transformer duty
Use the voltage ratio and block power to set the capacity basis, cooling and loss requirements for the project.
- 03
Coordinate equipment and site
Locate the transformer, high-voltage switchgear and low-voltage equipment; check cable entry, earthing, ventilation, access and foundation.
- 04
Agree drawings and supply scope
Confirm the single-line and general arrangement drawings, requested test records, and division of factory and site work.
Use the agreed circuit and supply boundary as the basis for reviewing the proposed station.
Layout comparison
Compare the enclosed station and exposed assembly
Compare compartment access, cooling, cable routing and maintenance clearances for enclosed and open assemblies.
| Review point | Enclosed station | Exposed transformer and cabinets |
|---|---|---|
| Equipment placement | Show the transformer position relative to the enclosure, and locate the high-voltage and low-voltage equipment on the general arrangement. | Locate the transformer beside the equipment cabinets and define the connections between them. |
| Service access | Check door positions, compartment access and working clearance against the enclosure arrangement. | Check access around the transformer and each cabinet, including the required maintenance space. |
| Cooling and exposure | Coordinate transformer heat rejection, ventilation openings and the specified enclosure protection. | Confirm cooling air paths and outdoor protection for the transformer and cabinets at the site. |
| Cable routing | Mark inverter-side and collection-side cable entries at their assigned compartments. | Show cable entry and interconnection routes between the transformer and adjacent cabinets. |
| Site interface | Confirm enclosure footprint, lifting points, foundation and earthing connection on the general arrangement. | Confirm the assembly footprint, supports, lifting access and earthing connections on the site layout. |
| Approval drawing | Review the compartment layout, door swing, ventilation and terminal positions for the quoted station. | Review the transformer and cabinet positions, clearances and interconnection schedule for the quoted package. |
Quotation information
Information for a PV station quotation
Bring the inverter block, collection network, transformer duty and site conditions into one project brief. Mark the values already fixed and the decisions still open.
Useful project files
Share the single-line diagram, inverter schedule, collection feeder list and site layout. Add the latest equipment and civil drawings when available.
Application context
PV station applications
Review the connection and site interfaces for utility PV blocks, commercial generation and projects that also include storage.
01 Utility generation block
AC outputPV inverter block
Package boundaryStep-up station
Project interfaceCollection feeder
Confirm each block on the project single-line diagram
Utility PV generation blocks
A plant may repeat station packages across its defined inverter blocks before the collection network.
Design considerations
Confirm inverter AC output, station quantity, protection coordination, collection feeder arrangement and maintenance spacing from the project drawings.
02 Commercial site connection
GenerationSolar inverters
Where requiredStation interface
ConnectionSite network
Connection and export limits come from the site scheme
Distributed commercial PV
Commercial solar generation may connect through an existing site distribution system. A step-up station is considered where the approved scheme calls for one.
Design considerations
Check the site voltage, export limit, metering, service access and the boundary between solar and facility electrical work.
03 Solar and storage project
SourcesPV + storage converters
Scheme-definedAC interface
Project boundaryOutgoing connection
Actual circuit and operating modes depend on the SLD
PV with a storage interface
Adding storage changes conversion, control and export interfaces. The station connection and any shared equipment layout are defined by the approved electrical scheme for each project.
Design considerations
Show PV and storage converter connections, operating modes, protection and metering on the single-line diagram before defining a shared supply package.
Specification questions
Questions before specifying a PV station
Answers to common questions about inverter connections, station ratings, equipment layout and supply scope.
Where does the station connect in a PV plant?
The step-up transformer connects the inverter AC system to the collection network through the specified switching and protection equipment. The plant single-line diagram defines the circuits and the station supply boundary.
Which inverter data defines the station interface?
Provide the inverter AC output voltage and frequency, power per block, inverter count and connection arrangement. Match the transformer voltage ratio to that AC system and the specified collection voltage.
Does the YBM name define every rating?
Confirm the voltage pair, capacity, switching and protection ratings in the equipment schedule and data sheets for the proposed station. The series name alone does not establish the full electrical configuration.
What defines the station layout?
The general arrangement sets transformer position, compartment access, cable entries and service clearances. Specify an enclosed station or open transformer and cabinet arrangement according to the plant layout.
Are protection, metering and site works included?
Identify each required device and assign responsibilities in the supply scope. Mark the boundaries for protection, metering, controls, foundation, lifting, cables, earthing and commissioning before comparing station offers.
Which documents help prepare a PV station quotation?
Share the plant single-line diagram, inverter and feeder schedules, site layout and environmental conditions. List the required equipment data sheets, general arrangement and test records, and mark any project values still open.