From traditional fuses to eFuses, understanding the advantages, limitations, and use cases of each technology helps engineers ...
This paper discusses about the integrated overcurrent/overvoltage protection device that helps protect telecommunications equipments. With the advancement in ...
A. Except as permitted by Sec. 240.21(A) through (H), overcurrent devices must be placed at the point where the branch-circuit or feeder conductors receive their power. Taps and transformer secondary ...
All questions and answers are based on the 2017 NEC. Q. Per the NEC, overcurrent protection devices must be placed at what location in branch-circuit or feeder conductors? A. Except as permitted by ...
Schweitzer Engineering Laboratories has released the SEL-851 Feeder Protection Relay, which provides overcurrent, voltage and arc-flash protection for utility and industrial applications. This compact ...
For a PDF verion of this article, click here. Where resettable overcurrent protection is a requirement, PolySwitch polymeric positive temperature coefficient (PPTC) devices offer a highly effective ...
The new components include the PMPS150-1812; PMPS150E-1206; PMPS200-1812; PMPS200D-1210; PMPS260C-1812; and PMPS380E-1206. These surface mount device (SMD) PPTCs are designed for overcurrent ...
TYCO ELECTRONICS announced the introduction of a Metal Hybrid PPTC (MHP) technology useful for high-rate-discharge battery applications at ratings above 30VDC/30A such as cordless power tools, e-bikes ...
The objective of protective relays and protective schemes is to protect electrical equipment such as transformers, lines, cables, bus bars, etc. during abnormal system conditions. Hence, protective ...
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