Forum Posts

• October 4, 2019 9:28 PM PDT

  in the topic instantaneous overcurrent relay in the forum Electrical Engineering

  Hi, I have a question, what is the purpose of instantaneous overcurrent relay functionality, can it help to decrease the incidents.
• June 13, 2019 2:01 PM PDT

  in the topic MCB breaker in the forum Electrical Engineering

  thank you
• June 13, 2019 1:07 PM PDT

  in the topic MCB breaker in the forum Electrical Engineering

  Hi everyone, does anybody have an experience to derate a MCB breaker to 80%, when selecting a breaker size?   This post was edited by Pedro Mario at June 13, 2019 1:07 PM PDT
• May 15, 2019 10:45 PM PDT

  in the topic Current transformer in the forum Electrical Engineering

  having a current transformer 500:5, 5P5, 30VA for a motor with a full current of 700A. The short circuit current is estimated around 25kA. If the there is a fault, will the Current transformers will go to saturation?
• April 23, 2019 11:34 AM PDT

  in the topic Copper Transformer Vs Alminum Transformer in the forum Electrical Engineering

  I am looking for difference between the Copper Transformer vs Aluminum Transformer. Normally transformer winding is copper which called copper losses. If the transformer is Aluminum what can be the losses, Aluminum Loss. Can somebody give some information regarding difference and price cost which one could be cheaper?