Epcos has extended its range of EMC filters for frequency converters with new sine-wave filters designed to reduce the proportion of high clock frequencies at the output of converters. This allows interference-free operation of variable speed drives with long motor cables. Sine-wave filters of the B84143V*R227 series are designed for continuous currents of 4 to 320 A at rated voltages of between 520 and 690 V. The permissible clock frequency of the converters is between 1,8 and 16 kHz, depending on the type.
Motors are often connected to converters over distances of more than 100 metres. The parasitic capacitances of such long cables result in reactive power. Motor noises and increased eddy current losses are also produced. Epcos’ sine-wave filters significantly reduce these negative effects. Moreover, they can reduce filtering requirements at the input of the converters, so that less expensive types can be used there.
Read more...Ensuring safety with earth leakage protection NewElec Pretoria
Circuit & System Protection
Earth leakage protection helps mitigate the risks of electric shocks, fires, and equipment damage by swiftly identifying faults and disconnecting the power supply, thus safeguarding both human lives and machinery.
Read more...Suppressing EMI with filters Vepac Electronics
Circuit & System Protection
EMI/RFI filters play an important role in reducing the high-frequency noise that is generated by various electrical and electronic devices.
Read more...Patch attenuates like a shielding cabinet Würth Elektronik eiSos
Circuit & System Protection
Würth Elektronik has launched its hybrid WE-EMIP EMI absorber sheet, a convenient solution for reducing electromagnetic interference by up to 40 dB.
Read more...Clearing the Static: Ionisation equipment Actum Electronics
Circuit & System Protection
Electrostatic discharge (ESD) ionisation equipment is designed to neutralise static charges that accumulate on surfaces in environments where ESD-sensitive components or materials are handled. These ...
Read more...SMD choke for currents up to 48 A Electrocomp
Passive Components
Designed for rated currents from 36 to 48 A, these surface-mountable components from TDK cover a range of inductance values from 2,3 to 8,5 µH.
Read more...Advanced electrolytic hybrid capacitor Electrocomp
Passive Components
Online Teaser: The capacitor series from Panasonic achieves a maximum ripple current of 3,3 to 4,6 A, which is approximately 50% higher than comparable case sizes.
Read more...Motor and feeder protection for LV and MV environments NewElec Pretoria
Circuit & System Protection
This relay from NewElec is a micro-controller-based precision instrument with ANSI protection elements, advanced control features, and switchgear controller logic integrating motor and feeder control functions.
printer friendly version