ABB 3BHB002000R0001 is a high-voltage film snubber capacitor from the ABB 3BHB series. It features a rated capacitance of 2 μF and a rated DC withstand voltage of 3100 V. Matched with the power units of the UNITROL 6000 excitation control system, it is a dedicated snubber component for high-power power electronic equipment.

This capacitor suppresses peak voltage generated during the operation of switching devices and absorbs stray circuit energy to stabilize voltage waveforms of high-voltage inverter and rectifier circuits. It is applicable to high-power working conditions including excitation systems, medium and high-voltage drives, and flexible DC converter stations.

Constructed with metallized polypropylene film dielectric, it meets the requirements of long-term continuous industrial operation. Manufactured in Switzerland and Germany, it complies with the EU RoHS directive. Free from the risk of electrolyte leakage, it serves as the standard snubber component for high-voltage IGCT and thyristor power circuits.

Product Features

1. Core Electrical Parameters Rated capacitance: 2 μF; rated DC withstand voltage: 3100 V. Applicable to 50/60 Hz power frequency circuits and kHz-level high-frequency switching loops.
2. Dielectric Structure Dry metallized polypropylene film with self-healing protective construction.
3. Temperature Resistance Operating temperature range: -55°C ~ +105°C; storage temperature range: -60°C ~ +125°C.
4. Insulation Performance Insulation resistance ≥ 10¹⁰ Ω under 1000 V DC. Insulation class complies with standards for high-voltage power equipment.
5. Loss Characteristics Low equivalent loss at low frequencies and low heat generation under high-frequency operation, eliminating the need for separate dedicated heat dissipation structures.
6. Mechanical Dimensions Body height: 79.2 mm. Equipped with standard crimp-type terminals, suitable for installation inside water-cooled and air-cooled power cabinets.
7. Compliance Certifications Compliant with RoHS environmental standards and CE industrial equipment safety certification, meeting market access requirements for power projects worldwide.
8. Service Life Minimum continuous service life of 10 years under rated operating conditions. Service cycle will not be shortened within ±10% voltage fluctuation range.

Application Industries

1. Power Generation & Excitation Power snubber circuits of UNITROL 6000 static excitation cabinets for hydroelectric and thermal power generating units.
2. Metallurgical Industry Medium & high-voltage IGCT variable frequency drive systems for rolling mills and smelting furnaces.
3. Mining Equipment High-power frequency converters for mine hoists and high-voltage ventilation fans.
4. New Power Generation High-voltage snubber branches of wind power converters and centralized PV inverters.
5. Rail Transit Locomotive traction converters and high-voltage power units for metro vehicles.
6. Marine Power Systems Generating sets on offshore platforms and main propulsion variable frequency systems for vessels.
7. Flexible Power Transmission Grid SVG static var generators and modular multilevel converter equipment.

Matching Supporting Products

1. UNITROL 6000 Excitation Power Unit
2. ABB GUSP series gate power supply modules for IGCT drive boards
3. Power components of ACS6000 medium & high voltage frequency converters
4. 3BHB series high-voltage reactor 3BHB009181P0001
5. ABB fiber optic trigger control board GVC736BE101
6. Water-cooled power heat dissipation cabinets and high-voltage busbar connection assemblies
7. High-voltage insulation monitoring sensors and overvoltage protection relays