Description
ABB HIES308461R0012
1. Basic Information
ABB HIES308461R0012 is an original industrial forced water-cooled braking resistor, specially designed for ABB ACS1000 medium-voltage frequency converters. Adopting high-efficiency water circulation heat dissipation structure, it converts regenerative electric energy into heat consumption, stabilizes DC bus voltage, and eliminates overvoltage tripping faults during motor braking. Featuring compact structure, low temperature rise, stable resistance value and long service life, it is widely used in heavy-duty frequency conversion transmission scenarios such as metallurgy, mining and large-scale fan & water pump equipment.
2. Core Technical Specifications
2.1 Basic Parameters
- Model: HIES308461R0012
- Type: Forced Water-cooled Braking Resistor
- Compatible Device: ABB ACS1000 MV Frequency Converter
- Nominal Resistance: 2.5 Ω
- Rated Power: 15kW
- Cooling Method: Industrial circulating water forced cooling
- Interface Standard: 1/2″ NPT Water Pipe Port
- Weight: 0.78kg
- Dimension: 195×115×28mm
2.2 Electrical Parameters
- Withstand Voltage: 2500VAC (1min)
- Insulation Resistance: ≥100MΩ @500VDC
- Power Characteristics: Linear energy consumption, no thermal drift
- Impact Resistance: Tolerates instantaneous high regenerative current impact
2.3 Heat Dissipation Parameters
- Thermal Efficiency: ≥90% high heat exchange efficiency
- Cooling Medium: Industrial pure water / deionized water
- Working Feature: Constant temperature heat dissipation, low temperature rise
2.4 Environmental Parameters
- Operating Temperature: -20℃～+70℃
- Storage Temperature: -40℃～+85℃
- Humidity: 5%～95%RH (Non-condensing)
- Industrial Performance: Anti-aging, anti-impact, stable thermal performance
3. Main Features
- High Power Density Water Cooling: Far higher heat dissipation efficiency than air-cooled resistors, ensuring low-temperature operation under heavy load and frequent braking conditions.
- Precise Energy Consumption & Voltage Stabilization: Standard 2.5Ω resistance accurately consumes regenerative power and stabilizes DC bus voltage to eliminate overvoltage tripping.
- Heavy-duty Cycle Adaptability: Resists thermal fatigue and current impact, maintaining stable performance during long-term frequent start-stop and braking operation.
- Silent & Dust-free Operation: Fanless water-cooled structure realizes zero noise and no dust accumulation, reducing daily maintenance workload.
- Compact Integrated Design: Perfectly matches ACS1000 installation size for direct drop-in replacement without cabinet modification.
- High Safety Insulation: High-grade insulation packaging prevents leakage and short-circuit risks, ensuring high-voltage system safety.
- Low Temperature Drift Stability: Special alloy resistance core ensures minimal resistance fluctuation under variable temperature working conditions.
- Original System Compatibility: Fully adapted to ACS1000 control logic without parameter adjustment after replacement.
4. Working Principle
- Regenerative Power Generation: The motor generates reverse regenerative electric energy during deceleration and braking, causing DC bus voltage surge.
- Brake Circuit Turn-on: The frequency converter triggers the brake unit to conduct when the bus voltage exceeds the threshold.
- Electric Energy Consumption Conversion: The resistor converts excess regenerative electric energy into heat energy for dissipation.
- Forced Water Cooling Heat Dissipation: The circulating water takes away heat rapidly to avoid overheating and thermal attenuation of the resistor.
- Bus Voltage Stabilization: Maintains the bus voltage within the safe range to prevent overvoltage faults and module breakdown.
- Circular Stable Operation: Continuously performs energy consumption and heat dissipation during frequent dynamic working conditions to ensure system stability.
5. Typical Applications
5.1 ABB ACS1000 MV Frequency Conversion System
Serves as the standard braking energy consumption component for ACS1000 series medium-voltage converters, solving overvoltage faults caused by regenerative feedback during equipment deceleration.
5.2 Mine & Heavy-duty Lifting Equipment
Adapts to gravity feedback working conditions of hoists and winding machines, consuming regenerative energy stably to ensure safe braking of heavy loads.
5.3 Metallurgical Rolling Line Transmission System
Meets frequent speed regulation and continuous braking process requirements of rolling mill equipment to ensure stable operation of production processes.
5.4 Large Fan & Water Pump Frequency Conversion System
Suppresses instantaneous voltage surge caused by load mutation, protects converter power modules, and extends equipment service life.
5.5 Old Equipment Maintenance & Replacement
Replaces aging water-cooled resistors with heat attenuation and resistance drift, restoring the original braking and voltage stabilizing performance of the frequency conversion system.
