Editor’s choice
FAST CHARGING STATION ROLL OUT IS CRITICAL TO E-MOBILITY EXPANSION
with emission limit standards. To suppress conducted interference, these filters are suited to a frequency range of between 150 kHz and 30 MHz. They also prevent other devices in the environment from being negatively affected. All standard filters are designed to be compatible with the IEC60939-3 standard and other international standards, which makes them suitable for use in any system. For example, the FN2220 series of standard DC filters for EV charging has a current rating of 150 A to 600 A with a capacitance of 990nF. This makes the filters ideally suited for use in IEC/EN 61851-1 EV conductive charging systems and UL 2202 EV charging systems equipment. Schaffner’s FN2220 filter has been designed to ensure a safe charging experience up to 1,000 VDC, with the smallest version achieving up to 75 kW. A major benefit here is that, because the top end of the scale is marked at 600 A and 1,000 V, fast charging with 600 kW can be achieved with just one EMC filter. Because the FN2220 family meets the requirements of both central EV-charging standards, filters do not need to be reviewed for compliance when designing a charging
Instrumentation Monthly August 2023
station and can be integrated instantly, saving time and cutting costs.
As well as compliance with EMC requirements and standards, EV charging stations must provide galvanic separation between the input and output side so that they operate safely. This job is typically done by medium-frequency transformers. Compared to conventional main grid transformers, these medium-frequency devices can be much smaller in design while delivering the same performance. Their small footprint also means they can be used in EV charging stations where space tends to be at a premium. As a global market leader in electromagnetic solutions that deliver efficient and reliable operation of electronic systems, Schaffner offers the world's widest selection of EMC/EMI filters. The company’s standard or customer-specific solutions have been developed to ensure designers of EV charging stations meet international compliance standards while improving the immunity and safety of equipment. Around the world today, new generations of high-power EV charging stations are being developed that incorporate Schaffner products.
For example, for the world’s biggest manufacturer of fast charging stations Schaffner supplies DC filters for high-power output to vehicles. The company has been so convinced by the outstanding performance of these DC filters - as well as the excellent customer support provided - that it is looking to equip its next generation of high-power charging stations with the same products.
Schaffner
www.schaffner.com
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