Description
ABB 3BHL000734P0003
1. Basic Information
ABB 3BHL000734P0003 is an original high-power di/dt air-core current-limiting reactor, specially designed for ABB ACS880 and ACS6000 series high-power industrial frequency converters. Adopting dry-type hollow air-core structure, it completely eliminates magnetic saturation defects. It is mainly used to suppress PWM high-frequency current and voltage mutation rate, filter high-frequency harmonic spikes, buffer long-line reflection overvoltage, and protect inverter power modules and motor insulation. Featuring low loss, linear performance, vibration resistance and long service life, it is widely used in heavy-duty frequency conversion scenarios such as metallurgy, mining and marine power systems.
2. Technical Specifications
2.1 Basic Parameters
- Model: 3BHL000734P0003
- Type: Dry-type Hollow Air-core di/dt Reactor
- Applicable Equipment: ABB ACS880/ACS6000 High-power Inverter
- Nominal Inductance: 4.3μH
- Rated Current: 806A
- Cooling Method: Natural air convection cooling
- Protection Class: IP20
2.2 Electrical Performance
- Linear Characteristic: Zero magnetic saturation, full-range linear inductance
- di/dt Suppression: Effectively suppress high-frequency pulse surge and current mutation
- High-frequency Adaptability: Low high-frequency loss, stable for PWM switching working conditions
- Insulation Performance: High-grade industrial insulation, anti-corona and anti-breakdown
- Operating Loss: Ultra-low dielectric loss, low temperature rise under full load
2.3 Structural Features
- Core Structure: Hollow air-core without iron core hysteresis loss
- Winding Material: High-purity oxygen-free copper wire
- Process: Vacuum impregnation insulation packaging
- Shock Resistance: Reinforced anti-vibration structure, no loose winding
2.4 Environmental Parameters
- Operating Temperature: -25℃～+70℃
- Storage Temperature: -40℃～+85℃
- Humidity: 5%～95%RH (Non-condensing)
- Industrial Performance: Anti-vibration, EMC anti-interference, anti-aging
3. Main Features
- Zero Magnetic Saturation Linear Performance: Air-core structure ensures stable inductance parameters under all load conditions without waveform distortion.
- Powerful di/dt Suppression: Effectively buffer instantaneous current and voltage spikes caused by high-frequency switching to protect IGBT modules.
- Long-line Motor Insulation Protection: Suppress cable reflection overvoltage and corona discharge, extending motor insulation service life.
- Ultra-low Loss & Low Temperature Rise: No iron core loss, ensuring stable long-term full-load operation without thermal attenuation.
- High-frequency Harmonic Filtering: Optimize output current waveform, reduce motor vibration, noise and harmonic heat loss.
- Harsh Environment Durability: Vacuum impregnation process realizes moisture-proof, dust-proof and anti-corona performance for heavy industrial scenarios.
- Original System Matching: Perfect size and parameter compatibility with ABB high-power inverters for direct replacement.
- Maintenance-free Operation: Natural cooling without wearing parts, reducing daily maintenance workload.
4. Working Principle
- High-frequency Pulse Generation: The inverter generates high-speed PWM switching pulses, accompanied by sharp current and voltage mutations.
- Current Mutation Suppression: The series reactor uses inductance characteristics to slow down current change rate and suppress di/dt impact.
- High-frequency Noise Filtering: Absorb and attenuate high-frequency harmonic clutter to optimize output waveform quality.
- Long-line Overvoltage Suppression: Match line impedance to weaken reflected surge voltage and protect motor insulation.
- Unsaturated Stable Operation: Air-core structure maintains stable parameters under impulse current without performance deviation.
- Natural Heat Dissipation: Continuous low-temperature operation ensures long-term stable protection of the frequency conversion system.
5. Typical Applications
5.1 ABB High-power Frequency Conversion System
Serves as the core output-side di/dt protection component for ACS880 and ACS6000 inverters to protect power modules and drive motors.
5.2 Long-distance Motor Drive Scenarios
Solve overvoltage and corona problems caused by long cable transmission, avoiding motor insulation breakdown failure.
5.3 Mining & Heavy Industry Equipment
Adapt to heavy-load impact working conditions of hoists and rolling mills to stabilize frequency conversion output and protect transmission equipment.
5.4 Marine & Offshore Power System
Reliable anti-vibration and anti-interference performance ensures stable operation of shipboard frequency conversion equipment.
5.5 Old Equipment Maintenance & Upgrade
Replace aging invalid reactors, restore system filtering and shock resistance without cabinet modification and parameter debugging.
