++ ATOT official NEF thread part IV ++

[bigboxes]

moo

 

[bigboxes]

moo

 

[Red Squirrel]

Finally got off my butt and finished the plug install for my freezer. Pulled the wire before my last set of night shifts, so just had to finish terminating. That turned into a bit of a project as I didn't want to dedicate a circuit for just one plug so took the time to add an utility plug in the laundry room on other side of same wall and also move the central vac plug to that circuit, which more or less just turns it into another utility plug. I could use plugs in there anyway so it works out. Never have anywhere near by to plug stuff in like the shop vac.

 

[Red Squirrel]

Black cat keeps going on my head rest then has trouble coming down. Turns out long hair is very slippery when using my head as a place to jump from. Thankfully he was nice enough to not use his claws lol.

 

[Ajay]

NEF

 

[Ajay]

NEF

 

[sdifox]

Curry beef brisket on rice nef

 

[Ajay]

NEF

 

[Red Squirrel]

I keep thinking there is a radio on somewhere, since I hear a slight mumble of what it would sound like if people were talking on a radio that is in another room, but it's my cat snoring lol.

 

[Ajay]

NEF

 

[sdifox]

Waiting for takeout nef

 

[Red Squirrel]

Found 4 old gel cells to make a crude 48v bank. These batteries are dead/semi dead ones that I just never recycled. They still hold enough charge to test my rectifier shelf.

I'm actually starting to think I can probably script my alarms through telnet instead of the relay outputs. Just need to do a get system info and grep the info. Get voltage, current, and alarms all in one screen. Can probably use a python script to do it.

Been tweaking alarm thresholds, but I'll probably play with this more once it's live.


Running off the batteries now and watching the voltage go down. No load though.

Trying 10.1.9.88...
Connected to 10.1.9.88.
Escape character is '^]'.

Please Log in

Username:Admin
Password:****

BC2000-A01> get system info
Location: BC2000-A01 :: State: System Alarm
----------------------------------------------------------------------
System:
  Voltage = 49.45V
  Current = 0A
  Type = 48 Volt
  Battery Current = 0A
Runtime: 0 days 0:48:59 ::  Cumulative Runtime: 437 days 21:29:30
Alarms:
 1 Major Alarm
 2 AC Fail Alarm
 3 Battery on Discharge Alarm
 4 Multiple Rectifier Fail Alarm

REQUEST_OK

BC2000-A01> get system info
Location: BC2000-A01 :: State: System Alarm
----------------------------------------------------------------------
System:
  Voltage = 49.11V
  Current = 0A
  Type = 48 Volt
  Battery Current = 0A
Runtime: 0 days 0:49:35 ::  Cumulative Runtime: 437 days 21:30:07
Alarms:
 1 Major Alarm
 2 AC Fail Alarm
 3 Battery on Discharge Alarm
 4 Multiple Rectifier Fail Alarm

REQUEST_OK

BC2000-A01> get system info
Location: BC2000-A01 :: State: System Alarm
----------------------------------------------------------------------
System:
  Voltage = 49.00V
  Current = 0A
  Type = 48 Volt
  Battery Current = 0A
Runtime: 0 days 0:49:55 ::  Cumulative Runtime: 437 days 21:30:27
Alarms:
 1 Major Alarm
 2 AC Fail Alarm
 3 Battery on Discharge Alarm
 4 Multiple Rectifier Fail Alarm

REQUEST_OK

BC2000-A01> get system info
Location: BC2000-A01 :: State: System Alarm
----------------------------------------------------------------------
System:
  Voltage = 48.91V
  Current = 0A
  Type = 48 Volt
  Battery Current = 0A
Runtime: 0 days 0:50:14 ::  Cumulative Runtime: 437 days 21:30:46
Alarms:
 1 Major Alarm
 2 AC Fail Alarm
 3 Battery on Discharge Alarm
 4 Multiple Rectifier Fail Alarm

REQUEST_OK

BC2000-A01> get system info
Location: BC2000-A01 :: State: System Alarm
----------------------------------------------------------------------
System:
  Voltage = 48.88V
  Current = 0A
  Type = 48 Volt
  Battery Current = 0A
Runtime: 0 days 0:50:23 ::  Cumulative Runtime: 437 days 21:30:55
Alarms:
 1 Major Alarm
 2 AC Fail Alarm
 3 Battery on Discharge Alarm
 4 Multiple Rectifier Fail Alarm

REQUEST_OK

BC2000-A01> get system info
Location: BC2000-A01 :: State: System Alarm
----------------------------------------------------------------------
System:
  Voltage = 48.85V
  Current = 0A
  Type = 48 Volt
  Battery Current = 0A
Runtime: 0 days 0:50:30 ::  Cumulative Runtime: 437 days 21:31:02
Alarms:
 1 Major Alarm
 2 AC Fail Alarm
 3 Battery on Discharge Alarm
 4 Multiple Rectifier Fail Alarm

REQUEST_OK

BC2000-A01> get system info
Location: BC2000-A01 :: State: System Alarm
----------------------------------------------------------------------
System:
  Voltage = 48.60V
  Current = 0A
  Type = 48 Volt
  Battery Current = 0A
Runtime: 0 days 0:52:11 ::  Cumulative Runtime: 437 days 21:32:43
Alarms:
 1 Major Alarm
 2 AC Fail Alarm
 3 Battery on Discharge Alarm
 4 Multiple Rectifier Fail Alarm

REQUEST_OK
            get system info
BC2000-A01> 
Invalid Request
REQUEST_FAIL

BC2000-A01> get system info
Location: BC2000-A01 :: State: System Alarm
----------------------------------------------------------------------
System:
  Voltage = 48.46V
  Current = 0A
  Type = 48 Volt
  Battery Current = 0A
Runtime: 0 days 0:53:34 ::  Cumulative Runtime: 437 days 21:34:05
Alarms:
 1 Major Alarm
 2 AC Fail Alarm
 3 Battery on Discharge Alarm
 4 Multiple Rectifier Fail Alarm

REQUEST_OK

BC2000-A01>

Should have a LVD warning alarm at around 47.9 volts. At 46 it will actually disconnect the battery, killing all power to the system and any loads that would normally be attached. This is great as I don't have to worry about over discharging the batteries. I figured the way these worked is you just have a single output but there's actually a battery side and load side, so that gives you more flexibility.

It came with only one 100a breaker though so just ordered 2 more. 2 for the battery side (2 strings) and 1 for load side. There's also a 30a that I might use for a single inverter. Really as is, I'm practically ready to deploy this as if I hard wire everything I will still have circuit protection anyway. I don't need to do the bus bar right away, only once I add more inverters.

 

[Red Squirrel]

The web interface would be nice and all but won't really need it, so glad it has telnet as it would be a headache without it. Bonus that I found the doc for it too.

 

[Red Squirrel]

And there's the LVD alarm as voltage dropped past threshold.

BC2000-A01> get system info
Location: BC2000-A01 :: State: System Alarm
----------------------------------------------------------------------
System:
  Voltage = 47.94V
  Current = 0A
  Type = 48 Volt
  Battery Current = 0A
Runtime: 0 days 0:59:39 ::  Cumulative Runtime: 437 days 21:40:11
Alarms:
 1 Major Alarm
 2 AC Fail Alarm
 3 Battery on Discharge Alarm
 4 Multiple Rectifier Fail Alarm

REQUEST_OK

BC2000-A01> get system info
Location: BC2000-A01 :: State: System Alarm
----------------------------------------------------------------------
System:
  Voltage = 47.89V
  Current = 0A
  Type = 48 Volt
  Battery Current = 0A
Runtime: 0 days 1:00:22 ::  Cumulative Runtime: 437 days 21:40:54
Alarms:
 1 Major Alarm
 2 Minor Alarm
 3 AC Fail Alarm
 4 Battery on Discharge Alarm
 5 LVD  Warning Alarm
 6 Multiple Rectifier Fail Alarm

REQUEST_OK

BC2000-A01>

 

[bigboxes]

moo

 

[sdifox]

Nyaa

 

[bigboxes]

moo

 

[Red Squirrel]

I think that's enough messing with my rectifiers for today lol. I actually wanted to put some more work on the basement today and kind of got side tracked.

I think I have everything I want figured out though, such as low voltage disconnect and the alarm relay outputs and stuff.

 

[bigboxes]

moo

 

[Ajay]

The web interface would be nice and all but won't really need it, so glad it has telnet as it would be a headache without it. Bonus that I found the doc for it too.

Wow, I didn't even know that there were rectifier doctors! What kind of school do they go to study that?

 

[Ajay]

Meh. I started waking up at 4am this morning. By 5am, I'd had enough tossing and turning and got up. Sometimes it's really annoying to be human.

 

[sdifox]

Nyaa

 

[Ajay]

NEF

 

[Red Squirrel]

Wow, I didn't even know that there were rectifier doctors! What kind of school do they go to study that?

Depends, if they go to Electroboom university they can become FULL BRIDGE RECTIFIARS!

 

[sdifox]

Nyaa