Full Analysis of ABB 3BHB010944R0001 Product

Full Name: IGBT/IGCT Module Auxiliary Supply Module (IGCT Power Unit Auxiliary Power Supply Driver Board)

Mated Main Power Device: 5SHY4045L0004 IGCT, which is the core gate power supply unit of the medium-voltage converter

1. Core parameters of 5SHY4045L0004 IGCT

Device type: Integrated Gate Commutating Thyristor IGCT (water-cooled package)

Peak reverse voltage during off-state: 4000V

Rated on-state current: 4500A RMS

Single-cycle surge withstand current: ≥ 60kA

Gate triggering condition: Gate trigger voltage 1.5–3V, gate trigger current 200–500mA

Turn-off time: ≤ 100μs

Insulation voltage: 5000V AC/1min

Thermal resistance (junction - substrate): 0.003℃/W

Operating junction temperature: -40℃ ~ +125℃

Matching native driver board model: 3BHB021400R0002 (gate driver board close to IGCT substrate)

2. 3BHB010944R0001 Auxiliary Power Supply Module (DT2500VA)

Full name: IGCT Module Auxiliary Supply Module, providing isolation power supply for 3BHB021400R0002 driver board

Input: 85–264V AC, 47–63Hz wide-range mains

Rated output: 24VDC / 10A, total power 250W

Built-in protection: Overvoltage, overload, short circuit, overheating lockout

Size: 160×110×50mm, net weight approximately 3kg

Origin: ABB Power Electronics Factory in Sweden

Function: High-voltage strong and weak current isolation, providing stable power supply for IGCT gate driver, temperature sampling, fault detection circuit, and isolating high-voltage interference in the main circuit

Power Unit Supply Chain of the Entire System

AC mains in the cabinet → 3BHB010944R0001 isolation voltage stabilizer 24V DC

24V DC output sent to the IGCT substrate driver board 3BHB021400R0002

The secondary transformation of the driver board outputs gate-on/off pulses to control the 5SHY4045L0004 high-power IGCT on and off

The driver board collects IGCT temperature, current, and short-circuit faults, and transmits the signals to the main control BCU board

Applicable Application Scenarios

ABB ACS6000 6kV/10kV medium-voltage high-power drive (rolling mills, mine hoisting, cement grinding mills)

ACS5000 water-cooled medium-voltage frequency converter

High-power wind power grid-connected converter, high-voltage SVG reactive power compensation device, ship propulsion converter