Phase-shifting transformers
Phase-shifting transformers control power flows in transmission networks. The flow changes by shifting the phase angle, which is adjusted by the OLTC in buck/boost modes.
- Purpose
- controlling power flows by changing the phase angle
- Regulation
- OLTC, buck/boost modes
- Design
- excitation and series transformers in one or two tanks
Price, availability and lead time on request. We help with analogue selection, customs clearance and delivery.
Description
The design consists of an excitation transformer and a series transformer. Both transformers are placed in one tank or in two tanks. The OLTC changes the phase angle up or down (buck/boost), which redistributes the load between parallel lines.
Technical specifications
| Purpose | controlling power flows by changing the phase angle |
|---|---|
| Regulation | OLTC, buck/boost modes |
| Design | excitation and series transformers in one or two tanks |
Replacement for
no direct analogue (phase-shifting transformers were not series-produced); closest are ЛТДН, ЛТМН (line regulating), ВРТДНУ (voltage-booster)
selected by purpose and main parameters, please confirm with our manager
Request a price and lead time
Phase-shifting transformers. 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 23 |
| 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
How does a phase-shifting transformer control power flow?
It changes the phase angle of the voltage, and power is redistributed between lines.
What device adjusts the angle?
The OLTC, in buck/boost modes.
What is the design of the transformer?
An excitation transformer and a series transformer, placed in one tank or in two tanks.
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