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DTSU666-H 250a 50 mA EXPO...

DTSU666-H 250a 50 mA EXPORT LIMITATION

Created: Jul 19, 2021 20:39:13Latest reply: Aug 13, 2021 09:39:58 750 9 0 0 0
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Hello evryone,

i'm an installer, i used a Huawei sun2000-60KTL with a Smart sensor DTSU666-H 250 A 50 mA and a smartlogger3000A, all is normal except  when I activate the injection limitation, the variation of the inverter in relation to the consumption is slow and do not follow consumption perfectly. to identify the problem, i used a network analyzer at the input of the network to compare the value of the smart meter and that of the analyzer and I noticed that the consumption comes from the network even if the solar is sufficient, and the energy comes from the network (for example the consumption is 25KW, The solar gives 15KW and the network 10kw but when I deactivate the limitation export, i found that the solar gives 40KW)


there is a solution or a setting that allows rapid variation

and how to set limitation for DTSU666-H 250a 50 ma, should i use CHINT DTSU666 or DTSU666-

DTSU666-H 250a 50 maExport limitationSmartlogger3000SUN2000-60SUN2000-60KTL-M0

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BetterMing
Created Jul 20, 2021 01:36:30

Hello, dear.


When you enable limiting output, the inverter output is limited and cannot output enough power to supply the load, so a portion of the power needs to come from the grid. 


You can set your power plant to zero power grid connection so that your plant will produce power in relation to your consumption. The power station will only draw power from the grid when it cannot produce power to supply the load. And the power you produce will not be delivered to the grid.

You can refer to this post for the related equipment parameter setting process.

https://forum.huawei.com/enterprise/en/export-limitation-configuration-on-smartlogger3000a/thread/605842-100027


You can use the DTSU666-H, which is no problem.

Thanks!

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ariase88
ariase88 Admin Created Jul 19, 2021 20:40:59

Thanks for contacting the Huawei community!

We are checking your question and will provide an answer to you shortly...
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BetterMing
BetterMing Created Jul 20, 2021 01:36:30

Hello, dear.


When you enable limiting output, the inverter output is limited and cannot output enough power to supply the load, so a portion of the power needs to come from the grid. 


You can set your power plant to zero power grid connection so that your plant will produce power in relation to your consumption. The power station will only draw power from the grid when it cannot produce power to supply the load. And the power you produce will not be delivered to the grid.

You can refer to this post for the related equipment parameter setting process.

https://forum.huawei.com/enterprise/en/export-limitation-configuration-on-smartlogger3000a/thread/605842-100027


You can use the DTSU666-H, which is no problem.

Thanks!

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4#
zak29
zak29 Created Jul 20, 2021 10:19:16

Hi,

But the production of the inverter does not follow the consumption

consumption and production


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BetterMing
BetterMing Created Jul 31, 2021 08:13:11 (0) (0)
Is your inverter output and input normal? What I mean is that if the input is small, the output can only reach the output stage shown in the graph at maximum. If not, you can contact the PV center. Check for you where the problem is.
Email: eu_inverter_support@huawei.com  
Tang_li
Tang_li Created Aug 5, 2021 01:09:34 (0) (0)
Check whether the power control settings on the SmartLogger are correct,
Check whether the cable connection and CT direction of the meter are correct. The arrow points towards the load and inverter.  
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5#
zak29
zak29 Created Aug 12, 2021 11:21:15

PHASE IMBALANCE CAN CAUSE SUCH A PROBLEM ?
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Tang_li
Tang_li Created Aug 13, 2021 09:23:16 (0) (0)
Check whether the power control settings on the SmartLogger are correct,  
Tang_li
Tang_li Created Aug 13, 2021 09:24:16 (0) (0)
Check the method of total power control.  
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6#
Tang_li
Tang_li Admin Created Aug 13, 2021 09:39:58

Ensure that all cables are correctly connected.

this  SmartLogger3000 Commissioning Video can help you
https://support.huawei.com/enterprise/en/doc/EDOC1100143563?section=o007

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