Symmetra PX2 160kW the THDU <6% with none-linear load issue with IEC 519

[BillP]

Hi, team

We'd just offer to customer a Symmetra PX with 160kW frame.

The out put THDU of Symmetra < 2% for linear load but <6% with none linearload.

Customer feel concern due to another UPS (APC, Powerware ...) have THDU <5%. I know that 6% still ok but customer want to have some document to show that THDU <6% was acceptted.

I found that IEC 519 -1992 standard require THDU<5% limmited. But APC guy say THDU<8% still ok with IEC 62040 standard which special standard for UPS only.

I have IEC 519 but I don't have any document about IEC 62040 to show customer. Can you help ?

Regards
NGUYEN

[BillP]

Hi, team

We'd just offer to customer a Symmetra PX with 160kW frame.

The out put THDU of Symmetra < 2% for linear load but <6% with none linearload.

Customer feel concern due to another UPS (APC, Powerware ...) have THDU <5%. I know that 6% still ok but customer want to have some document to show that THDU <6% was acceptted.

I found that IEC 519 -1992 standard require THDU<5% limmited. But APC guy say THDU<8% still ok with IEC 62040 standard which special standard for UPS only.

I have IEC 519 but I don't have any document about IEC 62040 to show customer. Can you help ?

Regards
NGUYEN

[BillP]

Hi Nguyen,

I finally have the documents you requested. I will send them to you in a personal email.

Thank you.

[BillP · Accepted solution]

Hi trinhkhai79,

Pls help me, send to me the document about IEC 62040.
Thank you very much,

WM,E