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D21 / BBC |
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CERN
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SY
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SY-EPC
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| D21 | BBC |
| Power In | 3 ~ 400V/600A |
| Power Out | 1500A/200V |
| Converter Type | Diodes 12P |
| Control type | From power converter associated |
Operation Responsibles
| 1st Intervention |  Piquet SY-EPC Experimental Areas(163668)
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| Responsibles: |
Yves GAILLARD
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Xavier GENILLON
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Power 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.
North Area power converter with Diode architecture
Power 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 |
Power Part simplified Architecture / Topology .pdf
Control & 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.
Machine Installation
Number of D21 power converters installed in North area:
- 889 (BA80): 14
- 890 (BA81): 27
- 891 (BA82): 01
Production Contract & Contract History
- Manufacturer: BBC
- Production year: 1976