This FAQ has been written for NEAL (North East Africa and Levant) region. If you are looking for information for another region, please select the correct country from the top-left dropdown in the page and 'Navigate to Browse FAQs' in the Support menu.
Thanks to be informed that ,
there is no permissible THD limit for a circuit breaker. The THDi and THDv for networks are generally guided by IEEE 519-2014 and IEC 61000-4-7 standards.
2. Micrologic A trip units do not offer measurements or protections in case of harmonics. In case harmonic measurements and indicators were required, you will have to opt-to Micrologic H. Micrologic H is the only Micrologic trip unit with harmonics measurements capability.
3. Harmonics will generally cause nuisance tripping to all circuit breakers. Thus, when having a harmonics generator in your network, you are advised to use a choke or line reactor to remove/mitigate the harmonics. You can also use passive or active filters in some cases. "
there is no permissible THD limit for a circuit breaker. The THDi and THDv for networks are generally guided by IEEE 519-2014 and IEC 61000-4-7 standards.
2. Micrologic A trip units do not offer measurements or protections in case of harmonics. In case harmonic measurements and indicators were required, you will have to opt-to Micrologic H. Micrologic H is the only Micrologic trip unit with harmonics measurements capability.
3. Harmonics will generally cause nuisance tripping to all circuit breakers. Thus, when having a harmonics generator in your network, you are advised to use a choke or line reactor to remove/mitigate the harmonics. You can also use passive or active filters in some cases. "
Released for:Schneider Electric Egypt and North East Africa
