TRANSFORMERS & ELECTRICAL COMPONENTS
APPLICATION / 01
Urban and rural distribution
For distribution-network installations where transformer capacity and downstream connections are coordinated with the local supply system.
MINGKONGmkelecsolution.com
Product illustration. Actual configuration varies by specification.
Open product image ↗Transformers
S11-M · Oil-immersed distribution transformer
Sealed oil-immersed distribution transformer with a corrugated tank arrangement described in the guide.
- Brand
- Mingkong
- Model
- S11-M
- Supply
- Factory supply
- Voltage class
- 10 kV
- Catalogue capacity
- 30–2,500 kVA
- LV rating
- 0.4 kV
- Vector groups
- Dyn11 / Yyn0
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 S11-M fits
S11-M is a sealed oil-immersed distribution transformer with a corrugated tank arrangement. It combines a laminated silicon-steel core with capacity-dependent winding construction. Electrical rating, connection group, tapping and installation conditions should be specified together for new equipment or replacement enquiries.
APPLICATION / 02
Industrial replacement
For existing plant transformers, compare the nameplate, physical envelope, terminal arrangement and required operating duty.
PRODUCT ENGINEERING
Construction & operating functions
DETAIL / 01
Corrugated sealed tank
The corrugated tank panels accommodate oil-volume changes in the sealed arrangement. Tank outline, cooling surfaces and fittings are selected for the specified rating.
DETAIL / 02
Laminated silicon-steel core
The core uses cold-rolled silicon-steel laminations with a secured core assembly. The selected model’s loss schedule defines the electrical performance to be supplied.
DETAIL / 03
Capacity-dependent LV winding
The description distinguishes a cylindrical low-voltage winding at smaller ratings and foil construction at larger ratings. Include the capacity and requested construction in the technical discussion.
DETAIL / 04
Winding connection and tapping
Dyn11 and Yyn0 configurations are covered by the family description. Specify the group and tapping range to match the supply arrangement and any existing equipment.
DEFINE THE SELECTED ASSEMBLY
Configuration & installation interfaces
Match the selected transformer to the room layout, terminal arrangement, cooling clearances and approved drawings.
Factory preparation photograph · reference assembly- Basic rating
- Provide kVA, HV/LV voltages, frequency and impedance.
- Normal environment
- The stated normal conditions include −25 to +40 °C and altitude up to 1,000 m. Identify any site condition requiring a different design.
- Accessories
- Define temperature indication, protection fittings, terminal type and documentation needs.
Installation & connection checklist
- Provide foundation dimensions and access for installation or replacement.
- Identify cable/busbar terminals and connection direction.
- State moisture, dust, salt or corrosion exposure at the site.
- Request the exact outline and terminal drawing for the selected capacity.
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 load schedule, HV/LV voltages, kVA and site conditions. Identify loss limits, vector group and required tests.
Distributor procurement
Model lists & repeat orders
Discuss supply requirements ↗What to prepare
List preferred kVA and voltage combinations, destination requirements, quantities and spare-parts or documentation needs.
Panel & equipment builders
Equipment integration & matching
Discuss an assembly ↗What to prepare
Provide the substation or equipment layout, terminal positions, cooling arrangement and monitoring interfaces.
Repair & replacement
Identify an existing unit or part
Identify a replacement ↗What to prepare
Send the nameplate, existing dimensions, cable or busbar interfaces and the reason for replacement.
Illustrative enquiry scenarios.
Selection checklist for S11-M
- Required kVA, HV/LV voltages, frequency and vector group
- Tapping arrangement, impedance and required loss limits
- Indoor/outdoor site, ambient temperature, altitude and ventilation
- Cable or busbar connections, installation dimensions, monitoring and test documents
- Provide foundation dimensions and access for installation or replacement.
- Identify cable/busbar terminals and connection direction.
- State moisture, dust, salt or corrosion exposure at the site.
- Request the exact outline and terminal drawing for the selected capacity.
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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Catalogue capacity: 30–1,600 kVA
View specifications ↗
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Mingkong Transformer Selection Guide · Updated 24 October 2026 · Chinese / English
For a quotation, include your required model, rating, quantity and operating conditions.
Plan your enquiry
Use these guides to prepare the information for equipment selection and quotation.