Over current protection for charge controllers [RE-wrenches]

[Ezra Auerbach, DragonSun Consulting]

I've always done my own systems with a multi-pole disconnect so that
when a single lever (switch) was thrown all DC input/output circuits are
disconnected from each other.  To my mind the choice between sending
"disconnected" PV array to either the batteries or inverter in no
disconnect at all.  My personal favourite was a modified 250 amp Siemens
three pole switch with optional fuse kit, probably no longer made.

Regards,

Ezra

Ezra Auerbach
DragonSun Consulting
Morewater Road
Lasqueti Island, B.C. V0R 2J0
 
ezra at lasqueti.net
250 333 8650 voice
250 333 8670 fax 


-----Original Message-----
From: Jay Peltz, Peltz Power [mailto:jay at asis.com] 
Sent: Saturday, May 10, 2003 8:20 AM
To: RE-wrenches at topica.com
Subject: Re: Over current protection for charge controllers
[RE-wrenches]


Hi Gary,

I never worried about the overcurrent protection as if you short the
wires, it'll trip the breaker.

What I never liked was that if you shut off the main, then the inverter
sees ( for a moment) open circuit voltage and you cannot shut off the
power to both sides of the controller with a breaker anyway.  Just crazy
to me.

I've installed lots of DC disconnects with 4 small breakers, yep gets
pretty crowded.

much peace,

jay

Peltz Power

- - - -
To send a message: RE-wrenches at topica.com

Archive of previous messages: http://www.topica.com/lists/RE-wrenches/

List rules & etiquette: http://www.mrsharkey.com/wrenches/etiquete.htm

Check out participant bios: www.mrsharkey.com/wrenches/index.html

Hosted by Home Power magazine

Moderator: michael.welch at homepower.com

- - - -
To send a message: RE-wrenches at topica.com

Archive of previous messages: http://www.topica.com/lists/RE-wrenches/

List rules & etiquette: http://www.mrsharkey.com/wrenches/etiquete.htm

Check out participant bios: www.mrsharkey.com/wrenches/index.html

Hosted by Home Power magazine

Moderator: michael.welch at homepower.com
==^================================================================
This email was sent to: michael_welch at sbcglobal.net

EASY UNSUBSCRIBE click here: http://topica.com/u/?bz8Qcs.bz9JC9.bWljaGFl
Or send an email to: RE-wrenches-unsubscribe at topica.com

TOPICA - Start your own email discussion group. FREE!
http://www.topica.com/partner/tag02/create/index2.html
==^================================================================