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12kw Deye 3P inverter

Featured Replies

Good day

Our original plan was 1 x 8kw Deye inverter. The office has a few 3 phase pumps (borehole and pressure pumps) so the plan was to convert them to single phase

Problem is the office is already close to 8kw load without the pumps on.

So we are looking at getting 1 x 12kw 3P Deye, with that we would not need to change the pumps to single phase.

My question is what would the max amps be per phase on the 3phase inverter? I see the manual says 18A so i presume it is 18A per phase which equals to 13kw which the inverter can handle.

I spoke to a technician from Magneto which states that the hybrid inverter can regulate the load between the 3 phases (1 phase can pull more than 18A) 

Does anybody have an answer on this? Can i pull let say 30A on the 1 phase and then lower Amps on the other)

Otherwise the 12kw would not work as the pumps would pull more than 18A.

Thanks in advance.

Regards

38 minutes ago, Scabanshi said:

Good day

Our original plan was 1 x 8kw Deye inverter. The office has a few 3 phase pumps (borehole and pressure pumps) so the plan was to convert them to single phase

Problem is the office is already close to 8kw load without the pumps on.

So we are looking at getting 1 x 12kw 3P Deye, with that we would not need to change the pumps to single phase.

My question is what would the max amps be per phase on the 3phase inverter? I see the manual says 18A so i presume it is 18A per phase which equals to 13kw which the inverter can handle.

I spoke to a technician from Magneto which states that the hybrid inverter can regulate the load between the 3 phases (1 phase can pull more than 18A) 

Does anybody have an answer on this? Can i pull let say 30A on the 1 phase and then lower Amps on the other)

Otherwise the 12kw would not work as the pumps would pull more than 18A.

Thanks in advance.

Regards

Good day, 

Trust this email finds you well. 

What size are the 3-P pumps which you want to run with the inverter?

If the load of the pumps and the office will be less than 12 KW it would still be advisable to put in more than your recommended load.

We would recommend using 2 x 12kw inverters or 3 x 8Kw inverters if you do not want to change the 3-P pumps to single-phase.

If you do change to single-phase pumps then we would recommend using 2 x 8 Kw inverters because your office is already at a constant load of close to 8Kw.

Hope to hear from you soon.

Regards

Magneto Technical Support

  • Author

Hi Magneto,

thanks for getting back to me, the pressure pump is 7.1A (1.7kw)

the diesel pump is 5.1A (1.2kw)

and the borehole pump I am not sure but should be about 4.5A (1.1kw)

as you will see in the attachment, the office doesn't pull constant high load. it is only when the one geyser is switched on and then someone makes coffee.

there are 3 small kitchens meaning 3 kettles and fridges. 

the geyser is also on a smart breaker that is programmed to come on certain times of the day, and would also be integrated into home assistant to be controlled with too little PV or loadshedding kicking in.

so, my plan is to regulate the load. this is when teamwork comes in and everybody should work together.

I am going to install smart lights that works with home assistant, so they will be alerted when it is loadshedding to not use as much power as normal.

then I would also like to implement lights that home assistant switches on when the load reaches let's say 9kw. so, then they know they should not switch on equipment. (This will be when someone throws in diesel for example.)

so, I would like them to keep the load at a minimum.

I do understand that you should not over work the inverter, but I'm sure with this "ruling system" we should stay under 10kw (if it spikes higher it should just be for a min or 2)

the main concern is that I will not be able to do load balancing to the T, as all the 3 phase items will pull from all 3 phases and then there is the single-phase items that will be split. so is it possible for the inverter to handle different load on different phases.

2023-07-10 (8).png

2023-07-10 (9).png

2023-07-10 (10).png

My understanding on the 3-Phase 12kw Sunsynk is:

1. Total Load cannot exceed 12kw when offgrid

2, Maximum load on a phase is 6kw, the max total load of 12kw still applies so the remaining 6kw cannot be exceeded by the other 2 phases.

3. Max continuous pass thru current is according to the datasheet is 50A, I assume that this is per phase, which would mean a max of 11.5kw per phase when the inverter is on grid. Should probably confirm this. 

  • Author

Good morning @Sc00bs

sorry for the late reply, thank you for your input. 

we are monitoring the site as is now to see how we can improve. 

the site is well under 8000w load at the moment.

the pumps aren't connected yet, but I'm sure we can monitor it and use power efficiently.

 

I finally installed home assistant and started working on it yesterday thanks to your videos!

i watched the video where you connected the geyser through Tuya app, my geysers are on the CBI app so I'm sure i should reload them onto Tuya app and then i can pull them in into HA.

so yesterday i only loaded my smart lights, as i explained in this post i would like to use them for when we are pulling more than a certain amount of power to warn us about potentially pulling max load.

I am struggling with the automation part. i am sure i did it correctly but it's not switching on the light when x amount of power is being pulled. 

would you mind looking at the code? so, I first did it myself through the normal interface and settings as you showed, i just changed the values (not working)

then I used ChatGPT to write the code but still it's not triggering.

when I press run the light doesn't switch off. I am sure there is something I'm missing.

this is ChatGPT code,

alias: Turn on/off kitchen light based on solar power
description: ""
trigger:
  - platform: numeric_state
    entity_id: sensor.solarman_total_load_power
    above: 3500
    id: solarman total power
action:
  - choose:
      - conditions:
          - condition: numeric_state
            entity_id: sensor.solarman_total_load_power
            above: 3500
        sequence:
          - service: switch.turn_on
            entity_id: switch.kitchen_1_light
      - conditions:
          - condition: numeric_state
            entity_id: sensor.solarman_total_load_power
            below: 2500
        sequence:
          - service: switch.turn_off
            entity_id: switch.kitchen_1_light
 

(values are lower now just for testing purposes)

If you have time, would you mind helping out please.

Thanks

4 minutes ago, Scabanshi said:

i watched the video where you connected the geyser through Tuya app, my geysers are on the CBI app so I'm sure i should reload them onto Tuya app and then i can pull them in into HA.

so yesterday i only loaded my smart lights, as i explained in this post i would like to use them for when we are pulling more than a certain amount of power to warn us about potentially pulling max load.

I am struggling with the automation part. i am sure i did it correctly but it's not switching on the light when x amount of power is being pulled. 

would you mind looking at the code? so, I first did it myself through the normal interface and settings as you showed, i just changed the values (not working)

then I used ChatGPT to write the code but still it's not triggering.

when I press run the light doesn't switch off. I am sure there is something I'm missing.

this is ChatGPT code,

alias: Turn on/off kitchen light based on solar power
description: ""
trigger:
  - platform: numeric_state
    entity_id: sensor.solarman_total_load_power
    above: 3500
    id: solarman total power
action:
  - choose:
      - conditions:
          - condition: numeric_state
            entity_id: sensor.solarman_total_load_power
            above: 3500
        sequence:
          - service: switch.turn_on
            entity_id: switch.kitchen_1_light
      - conditions:
          - condition: numeric_state
            entity_id:


            below: 2500
        sequence:
          - service: switch.turn_off
            entity_id: switch.kitchen_1_light

Hi @Scabanshi

I am no code guru, there are loads of people here who are way smarter than I am at coding, that is why I try to use ChatGPT 🙂 . 

I will however do my best to help you and I am sure that people will chime in if they have any better advise.

I don't think you need to switch the app to the Tuya app as I think the CBI app is basiocally the same thing and as long as you can link it by scanning the barcode it will all work. As far as I know it all uses the same backend, is just a different front end app for the OEM's.

I am using Bing Chat now for my queries as it is using the Version 4.0 AI model and appears to be a bit better. 

This is the prompt I used:

Can you help me write an automation for home assistant's yaml editor to switch on a light bulb switch.kitchen_1_light when the value of the sensor sensor.solarman_total_load_power goes above 3500 and then switch it off if it goes below that value for more than 30 seconds

and this is the result I received:

- alias: Turn on kitchen light based on sensor value
  trigger:
    platform: numeric_state
    entity_id: sensor.solarman_total_load_power
    above: 3500
  action:
    service: switch.turn_on
    entity_id: switch.kitchen_1_light

- alias: Turn off kitchen light based on sensor value
  trigger:
    platform: numeric_state
    entity_id: sensor.solarman_total_load_power
    below: 3500
    for:
      seconds: 30
  action:
    service: switch.turn_off
    entity_id: switch.kitchen_1_light
 

I hope that helps you, let me know. You can also edit in the visual editor if you want to change any of the values and does make things a bit easier to understand

 

 

  • Author

hi @Sc00bs thanks for the help!

i also thought it's not necessary to reload them on CBI, the only thing is I'm not sure how to get the details I need to integrate them, like you showed on the Tuya IOT via the CBI app on the phone. do you have any tips for me?

I will be trying the new code now and will update you.

thanks again.

  • Author

Hi @Sc00bs,

 

thanks again for your input! I am excited! it is working!

this is the code that is currently working,

alias: Turn on/off kitchen light based on solar power
description: Turn on/off kitchen light based on solar power
trigger:
  - platform: numeric_state
    entity_id: sensor.solarman_total_load_power
    above: 6000
    id: solarman total power
    for:
      hours: 0
      minutes: 0
      seconds: 0
  - platform: numeric_state
    entity_id: sensor.solarman_total_load_power
    above: -0.6
    id: solarman total power
    for:
      hours: 0
      minutes: 0
      seconds: 30
    below: 6000
action:
  - choose:
      - conditions:
          - condition: numeric_state
            entity_id: sensor.solarman_total_load_power
            above: 6000
        sequence:
          - service: switch.turn_on
            entity_id: switch.kitchen_1_light
      - conditions:
          - condition: numeric_state
            entity_id: sensor.solarman_total_load_power
            below: 6000
        sequence:
          - service: switch.turn_off
            entity_id: switch.kitchen_1_light
 

it switches on and off!

1 hour ago, Scabanshi said:

hi @Sc00bs thanks for the help!

i also thought it's not necessary to reload them on CBI, the only thing is I'm not sure how to get the details I need to integrate them, like you showed on the Tuya IOT via the CBI app on the phone. do you have any tips for me?

I will be trying the new code now and will update you.

thanks again.

You have to link the CBI app account on your phone to the developer account with Tuya IOT cloud. You have to scan the code in the Tuya IOT cloud somewhere with the CBI app on your phone (never did it with the CBI app so not 100% sure it can do it, would try it out before using a different app, please let us know if it works)

Once they are linked, you should be able to see all the Tuya devices that you have in the Tuya cloud and then get the keys for them from the Tuya IOT cloud.  

Once you know the keys you can add the devices into the LocalTuya integration as shown in the video. 

36 minutes ago, Scabanshi said:

Hi @Sc00bs,

 

thanks again for your input! I am excited! it is working!

this is the code that is currently working,

it switches on and off!

Glad to hear you got it working 🙂 

 

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