Rectifiers & D.C. Power Supply Systems

Additional supply to group of aluminium electrolyzers

Application

Used for testing of new electrolyzers, development of technology.

Main specifications

Parameter name Value
Primary voltage, kV 6 ÷ 35
Replenishing current, kA 6,3 ÷ 200
Current of one rectifier, kA 6,3 ÷ 75
Number of rectifiers 1 ÷ 6
Additional supply voltage, V 25 ÷ 150
Type of rectifier  thyristor
Rectification circuit diagram– bridge;  
– two opposed star groups with interphase transformers  
Pulse number of one rectifier6, 12
Total pulse number12 ÷ 48
Cooling of power semiconductors – non – freezing liquid – water;
– non – freezing liquid – air 
Design– indoors;  
– outdoors  
Ambient air temperature, °Cfrom -45 to +45

Delivery set:

  • switchgear installation    6 ÷ 35 kV      – indoors;  
                                                                        – containerized;
  • rectifier sets, pcs              2 ÷ 6;
  • current meter, kA              up to 300;
  • automated current control system;
  • d.c. buses assembly;
  • filter compensating device;
  • design;
  • delivery of equipment;
  • contract supervision, erection works;
  • start – up and adjustment works;
  • commissioning. 


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