Distribution transformers with on-load tap changer (OLTC)
Distribution transformers with an on-load tap changer (OLTC). Used in networks with a high share of distributed generation and voltage fluctuations.
- Regulation
- compact OLTC that does not increase the transformer dimensions
- Function
- automatic maintenance of network voltage within permissible limits
- Technology
- same as for standard distribution transformers
Price, availability and lead time on request. We help with analogue selection, customs clearance and delivery.
Description
The compact OLTC is built in so that the transformer dimensions do not increase. The transformer automatically keeps the network voltage within permissible limits. The manufacturing technology is the same as for the manufacturer's standard distribution transformers. Such a unit is installed in sections where distributed generation noticeably changes the voltage level and off-circuit tap changing cannot keep up with the network.
Technical specifications
| Regulation | compact OLTC that does not increase the transformer dimensions |
|---|---|
| Function | automatic maintenance of network voltage within permissible limits |
| Technology | same as for standard distribution transformers |
Replacement for
ТМГ-250/10…ТМГ-2500/10 (with off-circuit tap changer); with OLTC: ТМН-…/35; there is no direct analog for a 10/0.4 kV distribution transformer with OLTC
selected by purpose and main parameters, please confirm with our manager
Request a price and lead time
Distribution transformers with on-load tap changer (OLTC). We reply within one business day.
Or email sales@usk.ua or call 044 339-50-20.
Customs codes
| UKTZED (Ukraine) | 8504 21 00 00 8504 22 10 00 8504 22 90 00 8504 23 00 00 |
|---|---|
| HS, 6 digits | 8504 2 |
| CN (EU) | 8504 21 00 8504 22 10 8504 22 90 8504 23 00 |
| HTSUS (USA) | 8504 21 00 20 8504 21 00 40 8504 21 00 60 8504 21 00 80 8504 22 00 40 8504 22 00 80 8504 23 00 41 8504 23 00 45 8504 23 00 80 |
| China customs tariff | 8504 21 00 00 8504 22 00 00 8504 23 11 00 8504 23 12 00 8504 23 13 00 8504 23 21 00 8504 23 29 00 |
Codes are for reference: the final code is determined at declaration for the specific model.
Questions and answers
Does the OLTC increase the transformer dimensions?
No, a compact OLTC is used, and the dimensions remain the same as for a standard distribution transformer.
What networks need a transformer with an OLTC?
Networks with a high share of distributed generation, where the voltage fluctuates noticeably.
How does voltage regulation work?
The OLTC automatically keeps the network voltage within permissible limits under load, without disconnecting consumers.
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