Protective relays of the ac type are actuated by current and voltage supplied by current and voltage transformers. To protect electrical systems from overloading or to monitor large loads by means of a metering instrument, current transformer (CT) plays a very important role. It provides the necessary tools to measure the actual load current and reduce its values by means of a transformation ratio to a manageable value. Therefore, selections of accurate and reliable current transformers are very crucial.

I have selected SES range of PVC tape insulated metering and protection current transformers.It is designed and manufactured to cater for wide range of applications. Its quality has been proven and tested to IEC: 44-1 (1996), Asta Certified & CE Mark Certified to UL. The standard rated secondary current is 5A.


Product brochure of SES CT ring type series can be found on the link below:
http://www.success.com.my/admin/prd~file/4269ee928b0a7e518bf27476529ec81f.pdf