ABB 5STP2552L0014 3BHL000986P3017 4500V Press-Pack Phase Control Thyristor Stack

Manufacturer: ABB Hitachi Energy Semiconductors Switzerland

Dual Part Number: Thyristor Chip:5STP2552L0014 / Full Double-Sided Water Cooling Mount Assembly:3BHL000986P3017

Matching Power Components: 5SDD2545L0001 Freewheeling Diode, 5SHY3545L0010 IGCT + 3BHB013088R0001 GDU

Compatible Control Hardware: DS200SDCCG5AHD, IS215UCVEH2AF Mark VI Excitation Main CPU

Applicable System: Large Capacity GE EX2100 Static Excitation Cabinet, ABB ACS6000 Medium Voltage Drives, HVDC VSC Converter Valves

Type: 4500V 100mm StakPak Hermetic Press-Pack Phase Control Thyristor Complete Water-Cooled Stack Unit

Core Function: Three-phase full controlled AC-DC rectification, generator excitation voltage phase regulation, modular parallel power stack, inductive load overvoltage suppression, 24/7 heavy load power plant continuous operation

1. Product Overview

5STP2552L0014 is ABB 4500V 100mm diameter StakPak hermetic press-pack phase control thyristor, matched with dedicated double-sided water cooling mounting assembly 3BHL000986P3017 as a complete power stack. It forms three-phase full-controlled rectifier bridge arms when paired with matching freewheeling diodes, serving as the core voltage regulation device for large generator static excitation systems. The solder-free ceramic sealed press-pack structure delivers excellent thermal cycling fatigue resistance; the device fails in short-circuit mode to avoid generator loss-of-field runaway risks in thermal power and gas turbine power plants. Stable 2500A continuous rated current supported by double-sided forced water cooling, suitable for long-term full-load operation. Mainly deployed in 300MW~1000MW large unit GE EX2100 static excitation converters, also widely used in ABB ACS6000 medium voltage four-quadrant rolling mill & mine drives, wind farm grid-connected VSC converters and HVDC flexible transmission rectifier valves. ABB discontinued original new production, refurbished and surplus power stacks are mainstream spare parts for power plant maintenance and capacity retrofit.

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