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YBM
YBM transformer substation
The YBM prefabricated transformer substation combines medium-voltage, transformer and low-voltage compartments in one packaged unit.
Need another rating or cabinet layout? Send your specification for model availability.
Product overview
About YBM
The YBM prefabricated transformer substation combines medium-voltage, transformer and low-voltage compartments in one packaged unit.
Send your electrical specification and installation details to discuss a YBM configuration for your project.
Engineering features
Application context
Outdoor or site-level power transformation and distribution, subject to the selected enclosure and system arrangement.
Referenced standards
Technical data
Specifications for YBM
Electrical and mechanical details supplied for this model.
Technical specifications for YBM
| High voltage compartment | item | unit | Parameter |
|---|---|---|---|
| Rated frequency | Hz | 50 /60 Hz | — |
| Rated Voltage | KV | 3.3KV, 6.0KV, 6.6KV | 10KV 11KV 13.8KV 15KV 20KV 22kv |
| Max service voltage | KV | 7.2 KV | 12KV, 24KV |
| Rated current | A | 400, 630, 1000, 1250,1600, 2000, 2150,... etc | — |
| Transfer current | A | 1200 -3150 A | — |
| 1MIN Power frequency withstand voltage, earth -phase | KV | 42/48, 85/95 | — |
| 1MIN Power frequency withstand voltage, phase/fracture | — | — | — |
| BIL | KV | 75/85, 170/185 | — |
| Rated short circuit breaking current | KA | 20, 31.5 | — |
| Transformer compartment | Rated voltage | KV | 3.3KV, 6.0KV, 6.6KV |
| Rated power capacity | KVA | 200 KVA Upto 2.5 MVA | — |
| Tapping range | % | ±2 X 2.5%, ±5% | — |
| Vector group | — | Yyn0, Dyn11 | — |
| Short-circuit Impedance | % | 4.0, 4.2, 4.5, 6, 8 | — |
| Low voltage compartment | rated voltage | V | 220, 380, 400, 415, 433, 440, 660, 690,800 |
| main circuit rated current | A | 50 -4000 | — |
| branch current | A | 5-800 | — |
| Enclosure | protection level | — | — |
| HV compartment | — | IP33, IP65.. | — |
| LV compartment | — | IP33 | — |
| Transformer compartment | — | IP23 | — |
| Noise level | dB | ≤ 50 | — |
Ordering guidance
Specify YBM for your project
These details help match the model and its configuration to your electrical installation.
- 01
Electrical duty
Voltage, current and system requirements.
- 02
Model selection
Compare dimensions and available specifications.
- 03
Installation
Confirm layout, mounting and connections.
- 04
Documents
Request drawings and relevant test records.
Include these inputs with the RFQ
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FAQ
YBM questions answered
What is YBM used for?+
The YBM prefabricated transformer substation combines medium-voltage, transformer and low-voltage compartments in one packaged unit.
How do I select YBM for my equipment?+
Check the incoming and outgoing system voltages, transformer capacity and connection arrangement, medium- and low-voltage equipment schedule. Use the product drawing and technical data to confirm the exact model.
What should I send for a YBM quotation?+
Send the required model, quantity and single-line diagram or equipment specification. Include any required test documents and destination market.
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