BS EN 61881-2:2012

What is BS EN 61881-2 - Capacitors for power electronics used in rolling stock about?  

BS EN 61881-2 is the second part of a multi-series standard used for Railway applications that specifies the test methods and procedures for aluminum electrolytic capacitors. This helps in manufacturing good quality capacitors for power electronics used on rolling stock. 

BS EN 61881-2 applies to d.c. aluminum electrolytic capacitors (cell, module and bank) for power electronics intended to be used on rolling stock. 

BS EN 61881-2 specifies quality requirements and tests, safety requirements, and describes installation and operation information. 

Note: Example of the application for capacitors specified in this Standard; d.c. filtering, etc. 

Capacitors not covered by this Standard: 

• IEC 61881-1: Paper/plastic film capacitors 
• IEC 61881-3: Electric double-layer capacitors 

Note: Guidance for installation and operation is given in Clause 9 

Who is BS EN 61881-2 - Capacitors for power electronics used in rolling stock for? 

BS EN 61881-2 on Capacitors for power electronics used in rolling stock is useful for: 

• Manufacturer of railroad  
• Manufacturer of electronic capacitors 
• Manufacturer of electronic devices 
• Electronic engineer 

Why should you use BS EN 61881-2 - Capacitors for power electronics used in rolling stock?  

The capacitor provides a low impedance path for the higher frequency signals to travel, which is a shunt path to the ground.  

BS EN 61881-2 specifies the test and measuring method and procedures for Capacitors for power electronics. The test method is as follows: 

• Capacitance and tangent of loss angle (tanδ) are useful in measuring the capacitance of these electronics 
• Determines the leakage current in these capacitors  
• Insulation test helps in measuring the two terminations and non-metallic case  
• Sealing test determines the sealing capacity of these capacitors 
• Calculates the surge discharged in these electronic capacitors 
• Environmental test ensures the sustainability of these capacitors in different climatic conditions 
• Mechanical testing is useful in identifying the defects or failures in these capacitors 
• Endurance test helps in ensuring the durability of these capacitors 
• Passive flammability test helps in determining the flammability of electronic capacitors 

BS EN 61881-2 can be your best guide in operating and installing these Aluminum electrolytic capacitors with non-solid electrolytes. By applying BS EN 61881-2, you can keep your environment clean, safe, and healthy. This results in manufacturing good quality capacitors for power electronics used on rolling stock.