Elprom Heavy Industries (VOLTAP)
Sofia manufacturer whose VOLTAP brand (official voltap.com) publishes vacuum, oil and SF6-insulated on-load tap changers sold to transformer OEMs. Listed here for the tap-changer line; Elprom also builds finished transformers.
Product categories
Tap changers (OLTC / DETC)
Related components
Company record
| Company | Elprom Heavy Industries (VOLTAP) |
|---|---|
| Role | MANUFACTURER |
| Location | Sofia, Sofia City, Bulgaria |
| Accessory categories | Tap changers (OLTC / DETC) |
| Technology subtypes | Vacuum-type, Oil-type |
| Voltage class & evidence | 245 kV (VOLTAP / RSV series in-tank OLTC) |
| Rated through-current | 1,200 A |
| Mounting configuration | In-tank |
| Technical standards | IEC 60214-1 |
| Primary evidence citation | Elprom Heavy Industries official technical catalogue |
| Source tier | TIER A |
| Provenance | — |
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