ABB 5SDD2545L0001 3BHL000986P3012 4500V Press-Pack Soft Recovery Diode Stack For Large Capacity GE EX2100 Excitation & MV VSC Converters

Manufacturer: ABB Hitachi Energy Semiconductors Switzerland

Dual Part Number: Diode Wafer:5SDD2545L0001 / Complete Water-Cooled Mount Assembly:3BHL000986P3012

Matching Power Device: 5SHY3545L0010 4500V Snubberless IGCT + 3BHB013088R0001 Fiber Optic GDU

Compatible System: Large Capacity GE EX2100 Static Excitation Cabinet, ABB ACS6000 MV Drives, HVDC VSC Converters

Type: 4500V 100mm StakPak Press-Pack Soft Fast Recovery Freewheeling Rectifier Diode Complete Double-Sided Water-Cooled Stack Assembly

Core Function: 4.5kV IGCT reverse inductive current absorption, three-phase high-power rectifier conversion, overvoltage spike suppression, modular parallel stack design, 24/7 continuous power plant heavy load operation

1. Product Overview

5SDD2545L0001 is ABB 4500V 100mm diameter StakPak soft fast recovery press-pack rectifier freewheeling diode, matched with upgraded dedicated water cooling mounting frame 3BHL000986P3012 as a full power stack unit. It is exclusively paired with 4500V snubberless IGCT 5SHY3545L0010 to form full high-power bridge arms for large capacity medium voltage converters. Hermetic ceramic press-pack housing eliminates internal solder layers for outstanding thermal cycling fatigue resistance; the device fails in short-circuit mode to prevent generator loss-of-field runaway hazards in large power plant excitation systems. Soft recovery characteristic drastically reduces switching reverse recovery losses, lowering cabinet heat generation under full-load continuous operation. Mainly deployed in large unit GE EX2100 static excitation converters for 300MW~1000MW gas/steam turbine generators, also widely used in ABB ACS6000 medium voltage rolling mill & mine four-quadrant drives, wind farm high-power grid-connected VSC converters and HVDC flexible transmission valves. Double-sided water cooling base supports stable 2500A rated continuous output. ABB discontinued original new production, refurbished and surplus stacks are mainstream spare parts for power plant maintenance and retrofit.