Three-phase AC-filter capacitors are easy to install, says TDK
Two series of Epcos power capacitors for AC filtering in three-phase delta connection applications have been released by TDK.
The B32375 series is designed for the low to medium power range and covers a capacitance spectrum from three x 5 microF to three x 50 microF with rated voltages from 250 to 600V RMS. The can diameters are 50 or 63.5mm and heights vary between 128 and 275mm depending on capacity and voltage. The capacitors have faston terminals for easy installation.
The B32376 series is designed for high power with a capacitance range from three x 10 microF to three x 400 microF with rated voltages from 250 to 1000V RMS. The can diameters for the B32376 capacitors are 116 or 136mm with heights ranging between 200 and 275mm. The capacitors have screw terminal M10 for safety installation and are also available in versions with a vibration resistance of 20g.
Both series of capacitors have improved safety, compared with predecessors. They are certified in accordance with IEC-61071, which eliminates the need for soldering. This results in a long service life of up to 100,000 hours at a continuous hot-spot operating temperature of 85 degrees C and 200,000 hours at 70 degrees C, says TDK.
The main areas of application are input and output filters of high-performance converters, for example in traction applications or in the field of renewable energy.
TDK specialises in electronic products for the smart society and is based in Tokyo, Japan. TDK was established in 1935 to commercialise ferrite, a key material in electronic and magnetic products. Today, TDK’s portfolio features passive components such as ceramic, aluminium electrolytic and film capacitors, as well as magnetics, high-frequency, and piezo and protection devices. It also includes sensors and sensor systems such as temperature and pressure, magnetic, and MEMS sensors. In addition, TDK provides power supplies and energy devices, magnetic heads and more. It products are marketed under the brands TDK, Epcos, InvenSense, Micronas, Tronics and TDK-Lambda.
It products are used in automotive, industrial and consumer electronics, and information and communication technology. The company has a network of design and manufacturing locations and sales offices in Asia, Europe, and in North and South America.