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topPower Converter Characteristics

D21 cubicle
D21 BBC
Power In 3 ~ 400V/600A
Power Out 1500A/200V
Converter Type Diodes 12P
Control type From power converter associated

topOperation Responsibles

1st Intervention Piquet Area icon Piquet TE-EPC Experimental Areas(163668)
Responsibles: Yves GAILLARD Yves GAILLARD
Xavier GENILLON Xavier GENILLON

topPower Converter Architecture

The D21 is a voltage booster called a "Diode module". It is used in North experimental area to increase the output voltage of a R12, R21 or R22 power converter.

This Diode module is composed of one part:

The Power part contains the transformer, the Main Circuit Breaker, the diode bridges and auxiliary circuitry.

D21 power architecture

North Area power converter with Diode architecture

topPower Part

The transformer has one primary delta winding and the two transformer secondary windings are delta and star connection.

The secondaries each feeds a 3 phases diode bridge assembly A and B.

Power In 3 ~ 400V/600A
Power Out 1500A/200V
Cooling type Fans
Converter Weight Power module 1500 kg
Converter Size width: 1500mm 
depth: 1500mm
height: 2300mm

D21 power part

Power Part simplified Architecture / Topology .pdf

topControl & Regulation Part

The control of the external Diode Module is from the Power Converter. Control for turning ON of the MCB and required interlock signals in the diode Module are routed through SK114 cable. The Diode Module MCB is switched on 2-3 seconds after the Power Converter.

topMachine Installation

Number of D21 power converters installed in North area:

topProduction Contract & Contract History

  • Manufacturer: BBC
  • Production year: 1976