[RE-wrenches] Inverter Harmonic Distortion

[Exeltech]

Hello August,

The UL 1741 safety standard for grid-tied inverters, which incorporates numerous other standards by reference, limits the total allowable harmonic distortion of grid-tied inverters to a maximum of 5%.  This value is based on a complex formula and several external variables under various operating conditions, so a simple "5% or less" doesn't completely define the actual overall specification, but it's close enough for discussion purposes.


Dan


--- On Mon, 8/30/10, August Goers <august at luminalt.com> wrote:

> From: August Goers <august at luminalt.com>
> Subject: [RE-wrenches]  Inverter Harmonic Distortion
> To: "RE-wrenches" <re-wrenches at lists.re-wrenches.org>
> Date: Monday, August 30, 2010, 5:11 PM
> Hi Wrenches,
> 
> Is anyone familiar with inverter Total Harmonic Distortion
> (THD) specs? I see that SMA, Fronius, etc have THD listed
> on their spec sheets but I'm looking for a spec that details
> requirements for grid tied inverters.
> 
> Thanks in advance.
> 
> Best,
> 
> August
> 
> 
> August Goers
> 
> 
> Luminalt Energy Corporation
> 1320 Potrero Avenue
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