TRANSFORMERS & ELECTRICAL COMPONENTS
APPLICATION / 01
Wind-generation connections
The wind application describes stepping generator voltage up for grid connection. Provide the actual generator output and project grid requirements.
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Product illustration. Actual configuration varies by specification.
Open product image ↗Prefabricated Substations
YB33 · Solar & wind power substation
Box-type step-up substation for wind and photovoltaic generation projects.
- Application
- PV / wind generation
- Assembly
- Box-type substation
Price on enquiry · Configuration, quantity & destination
Supply scope, manufacturer information, applicable documents and warranty arrangements are confirmed in the quotation and order.
APPLICATION & DUTY
Where YB33 fits
YB33 is a box-type substation family for wind and photovoltaic generation connections. It brings transformer and switching equipment into a coordinated assembly. The generator or inverter output, grid connection voltage and protection scheme define the required step-up configuration.
APPLICATION / 02
Photovoltaic generation
For PV projects, select the transformer ratio and distribution arrangement from the inverter output and collection-network design.
PRODUCT ENGINEERING
Construction & operating functions
DETAIL / 01
Integrated HV, transformer and LV sections
The design combines high-voltage equipment, transformer and low-voltage equipment. This supports a project-specific equipment schedule and coordinated layout.
DETAIL / 02
HV switch-fuse protection
Load-switch and fuse-combination protection is described, with fuse-striker operation and three-phase tripping arrangements. The selected fuse and switch duties must match the project.
DETAIL / 03
Operating mechanism options
Vacuum and other switch arrangements are discussed, with electric operation available as a configuration requirement. Include local/remote control and protection interfaces in the specification.
DETAIL / 04
Transformer construction alternatives
Oil-immersed and dry-type transformer constructions are described as alternatives. The chosen construction affects the enclosure, cooling and installation arrangement.
DETAIL / 05
Low-voltage switching
The LV main switch is selected with the generator/inverter-side duty and protection scheme. The selected device and ratings belong in the single-line diagram.
DEFINE THE SELECTED ASSEMBLY
Configuration & installation interfaces
Match the installation drawing, cable routes, clearances and electrical duty for the selected equipment.
Illustrative working scene- Generation data
- Provide inverter/generator voltage, total capacity and grid connection voltage.
- Protection and control
- Specify HV/LV protective functions, control supply, remote signals and any monitoring interfaces.
- Installation
- State outdoor exposure, corrosion requirements, transformer construction and delivery restrictions.
Installation & connection checklist
- Provide the generation-collection single-line diagram.
- Identify transformer and switchgear terminal arrangements.
- Coordinate foundation, ventilation and maintenance/removal access.
- Agree the complete equipment list and grid-related documentation scope.
Drawings & configuration documents
Send your selected rating and installation requirements to request the matching dimensional drawing, connection details and technical schedule.
DOCUMENTS · DELIVERY · SUPPORT
Technical coordination & after-sales enquiries
Confirm the order documents
Agree the selected specifications, applicable drawings, inspection records and identification requirements in the quotation and order.
Coordinate delivery
Include quantity, destination, packing requirements and preferred trade terms. Confirm transport scope and the requested delivery schedule with the quotation.
Request technical support
For an existing unit, provide its model, nameplate or order reference and a description of the issue. Include relevant photos or records already available. Warranty and service scope follow the agreed order terms.
Contact about this model ↗START WITH WHAT YOU HAVE
Prepare a quotation for this equipment.
Choose your enquiry type. Start with the information you have.
Price on enquiry
Quotations are prepared for the selected configuration, quantity and destination. Currency, validity, delivery terms, freight and any applicable duties or taxes are specified in the quotation.
Project procurement
New installations & project tenders
Discuss a project ↗What to prepare
Send the single-line diagram, transformer duty, feeder schedule and site plan.
Distributor procurement
Model lists & repeat orders
Discuss supply requirements ↗What to prepare
Identify recurring electrical schemes, destination conditions and the required equipment scope.
Panel & equipment builders
Equipment integration & matching
Discuss an assembly ↗What to prepare
Provide civil, cable, ventilation and control interfaces for the complete substation arrangement.
Repair & replacement
Identify an existing unit or part
Identify a replacement ↗What to prepare
Send the existing layout, nameplates and available access; identify which sections will be retained.
Illustrative enquiry scenarios.
Selection checklist for YB33
- Single-line diagram and incoming network arrangement
- Transformer rating, outgoing feeder schedule and metering scheme
- Site dimensions, cable entry, access, ventilation and drainage
- Protection, control supply, communication and delivery scope
- Provide the generation-collection single-line diagram.
- Identify transformer and switchgear terminal arrangements.
- Coordinate foundation, ventilation and maintenance/removal access.
- Agree the complete equipment list and grid-related documentation scope.
From enquiry to an agreed supply
- Share the requirementModel, duty, quantity and destination.
- Review the configurationResolve ratings, interfaces and site conditions.
- Agree the technical scheduleScope, drawings, tests, price and delivery terms.
- Confirm delivery documentsAgree packing, identification and the applicable inspection records.
Testing, warranty terms and after-sales scope are to be agreed in the quotation and order documents for the selected configuration.
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Mingkong High & Low Voltage Switchgear Selection Guide · Updated 24 October 2026 · Chinese / English
For a quotation, include your required model, rating, quantity and operating conditions.