Forums
New posts
Search forums
What's new
New posts
New media
New media comments
Latest activity
Media
New media
New comments
Search media
Members
Current visitors
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Green Renewable Energy Forum
Solar PV Forum
Solar immersion optimiser fitted
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support Talk Electrician Forum:
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="ProDave" data-source="post: 536249" data-attributes="member: 6969"><p>Solar dump controllers normally operate by burst firing the immersion, so it's 3kW then 0kW then 3kW etc over a time period typically between 1/2 and 1 second. </p><p></p><p>What is actually happening is with the immersion on, you are probably importing power, and when the immersion is off exporting power. This is a neat little trick making use of the way electricity meters work that they don't clock up any usage until one "unit" of energy has passed, typically 1 watt hour. So as long as you keep importing them exporting rapidly and the total each way averages at 0 and at no time does it clock up 1 watt hour in either direction, you do not get metered for anything.</p><p></p><p>I wonder if this rapid import / export is upsetting the inverters sensing? put simply it cannot cope.</p><p></p><p>Ask the inverter manufacturer if it is compatible with a burst firing solar dump controller?</p></blockquote><p></p>
[QUOTE="ProDave, post: 536249, member: 6969"] Solar dump controllers normally operate by burst firing the immersion, so it's 3kW then 0kW then 3kW etc over a time period typically between 1/2 and 1 second. What is actually happening is with the immersion on, you are probably importing power, and when the immersion is off exporting power. This is a neat little trick making use of the way electricity meters work that they don't clock up any usage until one "unit" of energy has passed, typically 1 watt hour. So as long as you keep importing them exporting rapidly and the total each way averages at 0 and at no time does it clock up 1 watt hour in either direction, you do not get metered for anything. I wonder if this rapid import / export is upsetting the inverters sensing? put simply it cannot cope. Ask the inverter manufacturer if it is compatible with a burst firing solar dump controller? [/QUOTE]
Insert quotes…
Verification
Post reply
Green Renewable Energy Forum
Solar PV Forum
Solar immersion optimiser fitted
Top