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Ampacity Tables

Posted by Administrator on 5/31/2015 to Techniques and How to...
I end up looking up this table so often I decided to post it on my blog

What is the Start Isolation feature of an ACR for?

Posted by Peter Kennedy on 4/3/2015 to Techniques and How to...
The start isolation feature of Blue Sea Systems ACR's is even incorporated into the name of the device. It is an optional feature with a very specific application......

How do you size a battery charger for a sailboat

Posted by Peter Kennedy on 4/3/2015 to Techniques and How to...
What are the factors that go in to deciding how big a battery charger to install on a sailboat?

Isolation Transformer or Galvanic Isolator - which is preferable?

Posted by Peter Kennedy on 10/24/2014 to Techniques and How to...
A discussion on the relative merits of transformers and galvanic isolators

Battery layout for twin engine boats

Posted by Peter Kennedy on 10/16/2014 to Techniques and How to...
Battery layout for twin engine boats
There are many ways to do a battery layout for multi-engine boats, here is one simple layout using remote switches.

What does an alternator regulator do and how does it work?

Posted by Peter Kennedy on 5/1/2014 to Techniques and How to...
What does an alternator regulator do and how does it work? An alternator regulator supplies current to the rotating part of the alternator. The rotating part is called the rotor, and when current is applied to it it becomes an electromagnet. Its rotation generates an alternating current in the fixed windings of the alternator, called the stator. The regulator acts as a control mechanism for this process

Help - my batteries are getting HOT!

Posted by Peter Kennedy on 1/24/2014 to Techniques and How to...
Help!  My Batteries are getting hot!  What should I do?

Uses for terminal strips

Posted by Peter Kennedy on 12/27/2013 to Techniques and How to...

Terminal strips seem such a lowly part of the electrical system that they hardly get a mention normally, but there are a lot of useful things you can do with a terminal strip, here are a few suggestions......


Choosing the right PowerPost for the job

Posted by Peter Kennedy on 12/19/2013 to Techniques and How to...
PowerPostPowerPosts were the first products made by Blue Sea Systems. Now they make a bewildering collection. How do you select which one to use?

What is the alternator field disconnect terminal on a battery switch for?

Posted by Administrator on 12/12/2013 to Techniques and How to...
AFD Terminals Many battery switches come with a pair of small terminals labelled "Alternator Field Disconnect" or AFD. Of all my years working on marine electrical systems I have never once seen these terminals hooked up correctly. What are they for and how should they be wired.........