Model Coding Interpretation
The S-093S 3BHB030475R0009/0309 follows ABB’s naming convention for industrial power modules, with each segment defining product attributes, function types, and hardware versions:
- S-093S: Core model prefix of the power unit. “S” represents the power unit family of ABB medium-voltage inverters, and “093S” is a specific power class identifier (adapting to power units with a voltage class of 3.3kV and a rated output current of approximately 120A), distinguishing it from the “S-083S” (adapting to a voltage class of 6.6kV).
- 3BHB: General prefix for ABB industrial spare parts, representing the “power electronics and control modules” category, distinguishing it from process automation modules (3BSE) and low-voltage electrical modules (1SFL).
- 030475: Function code of the power unit. “030475” is the exclusive identification code for the S-093S series, corresponding to the IGBT chip model (ABB FS450R17KE3), heat dissipation structure design, and electrical parameter configuration to ensure perfect compatibility with the ACS 800-07 series inverters.
- R0009/R0309: Hardware version identifier. “R” denotes “hardware version.” “0009” is the V1.0 basic version (produced before 2018, using traditional aluminum heat sinks), while “0309” is the V3.0 upgraded version (produced after 2018, using composite material heat sinks + optimized air duct design, with heat dissipation efficiency increased by 15%). Their core electrical parameters are consistent, with differences only in the heat dissipation structure and some auxiliary components (e.g., temperature sensors). They can be replaced in the same type of inverter (requiring the inverter firmware version to be ≥V5.3).
2. Product Description (Core Functions of Both Modules Are Consistent; Version Differences Are Marked)
With the core design concept of “high power density + high reliability + strong overload capacity,” the S-093S 3BHB030475R0009/0309 modules become the “power core” of medium-voltage inverters through modular IGBT topology, efficient heat dissipation, and a complete protection mechanism. Their core functions and advantages are reflected in three aspects:
2.1 Three-Phase Inversion with High-Precision Speed Regulation, Adapting to High-Power Motor Needs
The modules adopt a “three-phase full-bridge IGBT inversion topology,” which can convert the inverter’s DC bus voltage (e.g., the DC bus voltage corresponding to a 3.3kV inverter is approximately 4.7kV) into three-phase AC power with adjustable voltage (0-3.3kV/6.6kV) and adjustable frequency (0-50Hz), realizing precise speed regulation of high-voltage motors:
- Power and Current Output Capacity:
- Adaptable voltage class: 3.3kV medium-voltage system (ACS 800-07-0120-7 inverter), rated output voltage 0-3.3kV (three-phase), rated output current 120A (rms), rated output power 660kW (3.3kV × 120A × √3 ≈ 660kW).
- Overload capacity: 1.1 times the rated current (132A) for continuous operation of 60 minutes, 1.5 times the rated current (180A) for short-term operation of 1 minute, and 1.8 times the rated current (216A) for instantaneous operation of 10 seconds. It can cope with impact working conditions such as motor starting and load fluctuation (e.g., the load current reaches 150A when a fan starts, lasting for 30 seconds).
- Frequency adjustment range: 0-100Hz (configurable through inverter parameters, adapting to different motor rated frequencies, such as 50Hz/60Hz), frequency adjustment accuracy ±0.01Hz, ensuring stable motor speed (e.g., the speed deviation of a 600rpm motor is ≤0.6rpm).
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