Search

Premium Membership

Save 15% on Pro Premium Plan with discount code: UX778 (expires on October 31st). Study specialized LV/MV/HV technical articles and papers.

Current transformers – how to specify them - Schneider Electric
Current transformers – how to specify them – Schneider Electric

Protection, control and monitoring

Electrical power management requires implementation of data processing units able to monitor networks or equipment and, as applicable, to initiate the appropriate actions…

Data sent by current transformers are processed by protection, control and monitoring units that send signals to operate switchgear and/or information to a supervisory unit or to a central control room.

The protection plan must specify the operating or non-operating conditions for all the protections during a fault and during normal operation (transients). It must indicate the protection settings.

However, the plan rarely indicates the characteristics of the protection input circuit and other data necessary to specify the current transformers (CT). This is because it is often very hard for the designer to collect all the necessary data.

The consequences on industrial start-up can be serious: unsuitability, overrating, non-standard specifications and high costs, addition of matching CTs, last minute CT changes, postponement of delivery, commissioning, production times, etc.

More serious still, incorrect definition can lead to malfunctions in the protection channel causing destruction of equipment or, worse still, danger for the operator.

AUTHOR: Schneider Electric expert | Paola FONTI

Title:Current transformers – how to specify them by Schneider Electric
Format:PDF
Size:0.4MB
Pages:36
Download:Right here | Video Courses | Membership | Download Updates
Current transformers – how to specify them
Current transformers – how to specify them

Premium Membership

Get access to premium HV/MV/LV technical articles, advanced electrical engineering guides, papers, and much more! It will help you to shape up your technical skills in your everyday life as an electrical engineer.
More Information

Leave a Comment

Tell us what you're thinking... we care about your opinion! Please keep in mind that comments are moderated and rel="nofollow" is in use. So, please do not use a spammy keyword or a domain as your name, or it will be deleted. Let's have a professional and meaningful conversation instead. Thanks for dropping by!

forty two  ⁄  six  =  

Learn to Design Power Systems

Learn to design LV/MV/HV power systems through professional video courses. Lifetime access. Apply a 15% discount code EAB77 and enjoy learning!

Subscribe to Newsletter

Subscribe to our Weekly Digest newsletter and receive free updates on new technical articles, video courses and electrical guides.