TRANSFORMERS & ELECTRICAL COMPONENTS
APPLICATION / 01
Building distribution
For electrical rooms and combined substations supplying building loads. Coordinate the transformer with the incoming switchgear and the low-voltage distribution arrangement.
MINGKONGmkelecsolution.com
Product illustration. Actual configuration varies by specification.
Open product image ↗Transformers
SC(B)10 · Dry-type power transformer
Cast-resin dry-type transformer with separate voltage-class variants for building and industrial distribution.
- Brand
- Mingkong
- Model
- SC(B)10
- Supply
- Factory supply
- Voltage classes
- 10 / 20 / 35 kV
- Construction
- Epoxy resin cast
- Configuration
- Capacity and voltage combination by table
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 SC(B)10 fits
SC(B)10 is a cast-resin dry-type transformer family covering several primary-voltage classes. It can be specified for building and industrial distribution, with the winding voltage combination and performance table selected for the actual network. The 10, 20 and 35 kV variants need separate technical selection.
APPLICATION / 02
Industrial power supply
For plant distribution requiring a dry-type transformer. State load characteristics, installation conditions and the primary/secondary voltage relationship.
PRODUCT ENGINEERING
Construction & operating functions
DETAIL / 01
Cast-resin winding insulation
The winding insulation uses an epoxy-resin casting process. Resin mixing and vacuum degassing prepare the mixture before casting, helping the insulation surround the winding and fill the spaces within the assembly.
DETAIL / 02
Reinforced winding construction
Reinforcing insulation materials are incorporated within the cast winding structure. The filled resin and reinforcement form a coordinated mechanical assembly around the winding; required short-circuit and insulation test documents should be specified for the selected design.
DETAIL / 03
Low-voltage winding selection
A foil-type low-voltage winding is an option identified in the series designation. Confirm the actual winding construction with the selected capacity, voltage combination and technical schedule.
DETAIL / 04
Silicon-steel core and cast windings
The construction combines a laminated silicon-steel core with resin-insulated windings. The high-voltage winding arrangement forms part of the design for the selected voltage class.
DETAIL / 05
Separate voltage-class data
The on-page text table covers the 10 kV class. Additional reference tables cover 20 and 35 kV variants. A loss value or capacity from one voltage class should be selected with its own voltage combination.
DETAIL / 06
Monitoring and cooling configuration
Temperature monitoring and fan-cooling arrangements can be specified during selection. Define the expected alarm/trip signals and the operating duty rather than assuming that every auxiliary device is included.
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- Voltage class first
- Specify HV and LV voltages before selecting capacity. The family includes different step-down arrangements, so the model prefix alone is incomplete.
- Impedance and losses
- The 10 kV table includes 4%, 6% and 8% impedance entries. Choose the relevant combination together with the loss requirements.
- Connection and tapping
- State vector group, tapping range, frequency and any requirement to operate with an existing transformer.
Installation & connection checklist
- Provide the installation envelope and cable/busbar connection direction.
- Confirm whether an enclosure is required and describe the room environment.
- Specify temperature-monitoring outputs and cooling-control interfaces.
- Request the dimensional and terminal drawing for the selected voltage/capacity combination.
RATING DATA
Technical parameters
30–2,500 kVACapacity entries in this table
22Listed rating configurations
4.0 / 6.0 / 8.0%Impedance options · see matching row
Compare the capacity and impedance together. You can start an enquiry from a specific row. On a small screen, scroll the table sideways.
| Capacity (kVA) | No-load current (%) | Load loss (W) | No-load loss (W) | Short-circuit impedance (%) | Enquiry |
|---|---|---|---|---|---|
| 30 | 2.00 | 710 | 190 | 4.0 | Request this rating ↗ |
| 50 | 2.00 | 1000 | 270 | 4.0 | Request this rating ↗ |
| 80 | 1.50 | 1380 | 370 | 4.0 | Request this rating ↗ |
| 100 | 1.50 | 1570 | 400 | 4.0 | Request this rating ↗ |
| 125 | 1.30 | 1850 | 470 | 4.0 | Request this rating ↗ |
| 160 | 1.30 | 2130 | 540 | 4.0 | Request this rating ↗ |
| 200 | 1.10 | 2530 | 620 | 4.0 | Request this rating ↗ |
| 250 | 1.10 | 2760 | 720 | 4.0 | Request this rating ↗ |
| 315 | 1.00 | 3470 | 880 | 4.0 | Request this rating ↗ |
| 400 | 1.00 | 3990 | 980 | 4.0 | Request this rating ↗ |
| 500 | 1.00 | 4880 | 1160 | 4.0 | Request this rating ↗ |
| 630 | 0.85 | 5880 | 1340 | 4.0 | Request this rating ↗ |
| 630 | 0.85 | 5960 | 1300 | 6.0 | Request this rating ↗ |
| 800 | 0.85 | 6960 | 1520 | 6.0 | Request this rating ↗ |
| 1000 | 0.85 | 8130 | 1770 | 6.0 | Request this rating ↗ |
| 1250 | 0.85 | 9690 | 2090 | 6.0 | Request this rating ↗ |
| 1600 | 0.85 | 11700 | 2450 | 6.0 | Request this rating ↗ |
| 2000 | 0.70 | 14440 | 3050 | 6.0 | Request this rating ↗ |
| 2500 | 0.70 | 17170 | 3600 | 6.0 | Request this rating ↗ |
| 1600 | 0.85 | 12900 | 2450 | 8.0 | Request this rating ↗ |
| 2000 | 0.70 | 15900 | 3050 | 8.0 | Request this rating ↗ |
| 2500 | 0.70 | 18890 | 3600 | 8.0 | Request this rating ↗ |
Checked against the original transformer catalogue, PDF page 9, printed pages 07/08. This table is the 10 kV series only; see the separate source tables for 20 kV and 35 kV. Select the impedance together with capacity. HV options: 10 / 6.3 / 6 kV; LV: 0.4 kV; vector group: Dyn11 or Yyn0.
Technical sheets & drawings
Catalogue reference data for the labelled configuration. The agreed technical schedule defines the supplied equipment.
10 kV and 20 kV tables · original PDF p.9 View reference
35 kV tables · original PDF p.9 View reference
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 SC(B)10
- 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 the installation envelope and cable/busbar connection direction.
- Confirm whether an enclosure is required and describe the room environment.
- Specify temperature-monitoring outputs and cooling-control interfaces.
- Request the dimensional and terminal drawing for the selected voltage/capacity combination.
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 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.