Description

ABB S-093H 3BHB009885R0004

1. Basic Information

ABB S-093H (Part No. 3BHB009885R0004) is a dedicated IGCT drive power supply module for ABB medium and high-voltage frequency converters, serving as the core supporting power supply and pulse drive unit for high-voltage frequency conversion power units. Designed for IGCT power devices, it integrates multi-channel isolated regulated power output, pulse signal drive, hardware fault detection and overload self-locking protection. It provides pure and stable multi-channel DC working power for IGCT gate poles, control boards and signal acquisition loops inside high-voltage frequency converters, and undertakes pulse drive control of high-power thyristors and IGCTs. It is a key module for stable start-stop, power conversion and device protection of high-voltage frequency conversion systems.

Adopting industrial wide-voltage adaptation, low-ripple voltage regulation circuit and full anti-interference isolation design, the module supports high-power short-time overload output and built-in fault log storage and real-time diagnosis. It adapts to AC 380V~690V industrial power grid conditions. Featuring high output accuracy, low ripple, strong load capacity, impact resistance and long-term operational stability, it is widely used in harsh working conditions such as mining, metallurgy, power and chemical industries for new high-voltage frequency conversion equipment matching, faulty replacement of old power drive modules and stability upgrading of frequency conversion systems.

2. Technical Specifications

2.1 Core Power Output Specifications

Output Configuration: Multi-channel isolated DC regulated output, including 24V DC main power supply and ±15V DC auxiliary power supply, fully covering power demand of IGCT devices and control loops
24V DC Output: Rated output current 93A, short-time maximum overload current 110A (duration ≤30s), meeting instantaneous impact load demand of high-power devices
±15V DC Output: Rated 5A output for each positive and negative channel, providing precise power supply for signal conditioning, operational amplifier and detection loops
Output Ripple: ≤100mVp-p (24V DC), ≤50mVp-p (±15V DC), low ripple eliminates signal interference and device false triggering
Voltage Regulation Accuracy: Ultra-low regulation error under no-load, full-load and overload conditions with no obvious voltage drift

2.2 Electrical Input Specifications

Input Voltage: Wide industrial grid adaptation, standard AC 380V~690V, no additional step-down transformer required
Frequency Adaptation: Compatible with 50Hz/60Hz universal industrial power frequency, matching global mainstream grid standards
Grid Tolerance: Resists instantaneous grid fluctuation, voltage dip and short-term impact with excellent grid adaptability
Electrical Isolation: Full input-output electrical isolation and strong/weak current separation to block grid clutter, surge and frequency conversion crosstalk

2.3 Drive & Control Specifications

Drive Function: Built-in dedicated IGCT/thyristor pulse drive circuit with accurate timing and sufficient drive power to ensure fast and reliable turn-on and turn-off of high-power switching devices
Signal Interface: Supports standard digital control signal input, directly connecting with PLC and frequency conversion main control systems for precise linkage control of pulse timing
Expansion Capability: Modular interface design supports external IO expansion and temperature monitoring units to expand system fault monitoring dimensions
Operation Timing: Adapts to high-voltage frequency conversion start-stop timing, with ordered voltage regulation on power-on and ordered discharge on power-off to protect power device safety

2.4 Diagnosis & Protection Specifications

Power-on Self-inspection: Automatically self-inspects power loops, drive chips, output channels and load status to quickly identify hardware faults
Real-time Diagnosis: Continuously monitors output over-current, over-voltage, under-voltage, short circuit, over-temperature and pulse abnormality
Fault Storage: Built-in fault diagnosis log automatically records pulse output status, operating temperature, voltage and current parameters for fault tracing and predictive maintenance
Multi-protection: Five-level hardware protection including over-voltage, under-voltage, over-current, short circuit and over-temperature. Instant self-locking shutdown under faults prevents IGCT burnout and frequency conversion module breakdown

2.5 Environmental & Physical Specifications

Operating Temperature: -20℃～+70℃ ultra-wide industrial temperature range, adapting to high-temperature closed operation of high-voltage frequency conversion cabinets
Storage Temperature: -40℃～+85℃, strong resistance to high and low temperature impact during storage and transportation
Humidity Range: 5%～95% (non-condensing), dust-proof, moisture-proof and anti-corrosion for long-term closed cabinet operation
EMC Performance: Compliant with high-voltage power equipment EMC standards, excellent resistance to frequency conversion radiation, grid interference and electromagnetic crosstalk
Structural Design: Compact modular structure with high integration and neat wiring, suitable for ABB high-voltage frequency conversion standard rack installation
Protection Technology: Industrial triple-proof PCB coating with anti-vibration, anti-aging and high-temperature resistance for long-term heavy-duty operation

3. Working Principle

Power-on Initialization & Voltage Stabilization: After connected to AC380V~690V industrial power grid, the module starts hardware self-inspection, verifies the integrity of input loops, voltage stabilization circuits and drive chips, initializes internal parameters, starts multi-channel regulated output in order, and enters normal operation after voltage stabilization.
High-voltage Isolation & Conversion: The built-in isolated step-down circuit converts industrial high-voltage AC into multi-channel pure DC voltage. After multi-stage filtering, voltage regulation and shaping, it eliminates grid ripple, surge and frequency conversion interference to output high-precision stable DC power.
Multi-channel Load Power Supply Output: The 24V DC high-current channel provides centralized power supply for frequency conversion main control boards, fans, relays and switch loops; the isolated ±15V DC channel provides high-precision reference power for sensors, signal sampling and operational conditioning loops to ensure zero-drift signal acquisition.
IGCT/Thyristor Pulse Drive: It receives digital control pulse signals from the upper frequency conversion main control, amplifies power, calibrates timing and isolates drive, then outputs precise gate trigger pulses to control the ordered turn-on and turn-off of IGCTs and high-power thyristors, realizing power conversion and speed regulation of high-voltage frequency conversion systems.
Real-time Monitoring & Fault Protection: It collects real-time data of output voltage, current, module temperature and pulse status. Once abnormalities such as over-current, over-voltage, short circuit and over-temperature are detected, it immediately triggers hardware self-locking protection, cuts off drive output and power supply loops, stores fault logs and uploads alarm signals to prevent power device breakdown and equipment shutdown.
Short-time Overload Fault-tolerant Operation: Supports 110A overload output for 30s during equipment start-up and load mutation, adapting to instantaneous impact load of frequency conversion equipment and ensuring stable start-stop operation.

4. Application Scenarios

4.1 ABB Medium & High Voltage Frequency Conversion System

As the core supporting power drive module for ABB high-voltage frequency converters, it is widely used in 6kV/10kV medium and high-voltage frequency conversion equipment. It provides stable power supply and precise pulse drive for IGCT power devices, main control boards and signal acquisition loops, ensuring stable speed regulation, voltage stabilization and power conversion of high-voltage frequency conversion systems.

4.2 Mining & Metallurgy High-power Transmission System

Suitable for high-voltage frequency conversion transmission equipment such as mine hoists, metallurgical rolling mills and large fan water pumps. Adapting to frequent start-stop, large load impact and severe working condition fluctuations in heavy industry, it eliminates equipment start-stop faults and device damage through strong overload capacity and multi-protection mechanisms.

4.3 Power & Chemical Continuous Production Equipment

Applied in high-voltage frequency conversion systems of power plant auxiliary equipment, chemical heavy-duty conveying equipment and petrochemical process fan water pumps. With low ripple, high stability and strong anti-interference performance, it ensures zero drift, no misoperation and no shutdown faults of frequency conversion equipment under continuous production conditions, supporting long-term stable operation of production lines.

4.4 High-power Power Electronic Conversion Equipment

Suitable for various high-power thyristor rectifiers, high-voltage power regulation equipment and industrial high-power frequency conversion conversion devices. It undertakes multi-channel isolated regulated power supply and power device pulse drive tasks, serving as the core supporting unit of industrial high-power power electronic equipment.

4.5 Renovation & Replacement of Old High-voltage Frequency Conversion Systems

Fully compatible to replace old ABB S-093H power drive modules, solving common problems of aging equipment such as unstable output, excessive ripple, distorted drive pulse, invalid overload protection and frequent faults. It upgrades the stability of high-voltage frequency conversion equipment at low cost without modifying system structure and programs.