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Rectifier transformers and rectiformers

Rectifier transformers and rectiformers for rectified voltage over 2000 V DC and currents over 100 kA. Rating in a single tank is up to approximately 160 MVA, the main consumer being aluminum electrolysis.

Rectified voltage
over 2000 V DC
Current
over 100 kA
Schemes
double star (DSS), double bridge (DB) 6–60 pulses
Rating in one tank
approximately up to 160 MVA

Price, availability and lead time on request. We help with analogue selection, customs clearance and delivery.

Description

Regulating rectifier transformers feed diode and thyristor rectifiers, primarily at aluminum electrolysis plants. In a rectiformer the regulating and rectifying parts work as a pair, and the regulating unit may be built in or separate. Rectification schemes include double star (DSS) and double bridge (DB) with from 6 to 60 pulses.

Technical specifications

Rectified voltageover 2000 V DC
Currentover 100 kA
Schemesdouble star (DSS), double bridge (DB) 6–60 pulses
Rating in one tankapproximately up to 160 MVA
Regulationbuilt-in or separate regulating unit

Replacement for

ТДНП, ТМНП, ТДП, ТРДП (rectifier/converter 6–110 kV)

selected by purpose and main parameters, please confirm with our manager

Request a price and lead time

Rectifier transformers and rectiformers. We reply within one business day.

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Or email sales@usk.ua or call 044 339-50-20.

Customs codes

UKTZED (Ukraine)8504 23 00 00
HS, 6 digits8504 23
CN (EU)8504 23 00
HTSUS (USA)8504 23 00 80
China customs tariff8504 23 11 00

Codes are for reference: the final code is determined at declaration for the specific model.

Questions and answers

Which rectification schemes are supported?

Double star (DSS) and double bridge (DB), from 6 to 60 pulses.

What rating can be obtained in one tank?

Approximately up to 160 MVA at rectified voltage over 2000 V and current over 100 kA.

How is voltage regulation implemented?

The regulating unit is built into the transformer tank or made separate.

Similar equipment from other manufacturers

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