Hi all,
Is there any CSA or ANSI rule that tells a breaker should have 52/a & 52/b contacts ?
I know that mccb up to 400A doesn't have the 52/a & 52/b contacts.
But I am talking about 5000A, 600V breaker. Is there any ANSI or CSA code that says this breaker should have 52/a and 52/b contacts...
Hi Sonic,
Thank you very much for the information. As well, I tried to refer the CSA but couldn't figure it out which is the rule no. could you let me know the rule no. that tells about this underground system.
Thank you very much
HI all,
I am laying 34.5kV cable underground and with proper barrier, I am keeping control cable and fibre optic cable in the same trech.
Now when I cross road or river, can I go with the same standard with that I have for normal trench or there is standard for trench when you cross road or...
Dear all,
I have capacitor bank connected after distribution transformer for the compensation of reactive powers. The capacitor bank is composed of multiple capacitor unit and is connected Y ground. what type of protection needed for this capacitor banks ?
I have designed with following two...
HI DPC,
Little bit confusion.
"making capacity by putting multiple contacts in parallel."
"Breaking capacity can be increased by putting multiple contacts in series"
Why for breaking capacity, contacts should be in seris.
As per my understanding,while breaking also you are breaking...
Hi all,
MOst of the aux. relay manufacturer doesn't mentioned make and break capacity of aux. relay contact.
They mention 125VDC, 10A
Is this 10A is make capacity or break capacity or continuous current carrying capacity.
I am looking for a relay with 125VDC, 3A make capacity.
Help for...
