list of psu's that will run on 277 - page 2.

jstew

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Activity: 469

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im curious as to what u guys are using for outlets on 277 , ive been using 110/120v plugs for my 240 since they are cheap and i dont have to replace my cords

for the 277 lines i came across a 10 pack of 20 amp 250v outlets for 1$ so i grabbed them to try think ill have any issues with them? they are 6-20p's

jstew

sr. member

Activity: 469

Merit: 500

Quote from: BLOCK_C on October 12, 2015, 07:01:48 PM

Energy from the wall can vary up to 10%, if there's a spike aren't you going to risk your PSUS's going nova?

im having the power company adjust the voltage at the pole on the transformers so its slightly below 277 just incase of spikes , my 240v dry transformersare actually adjusted to output 256v at the outlets and all those have been just fine for the last 9 months

BLOCK_C

newbie

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Energy from the wall can vary up to 10%, if there's a spike aren't you going to risk your PSUS's going nova?

jstew

sr. member

Activity: 469

Merit: 500

Quote from: flikflak on October 11, 2015, 10:08:12 PM

I've sold my S4, but I think the boards are internally wired with the normal 6pin PCIe (GPU) plug. So changing the internal psu can also be an option to go for 277V.

yeah one of the s4's i just picked up has the pci-e conectors and a burnt psu , ill be running that unit on an ibm 2880w psu on 277

iirc the early s4's use lugs for getting power to the boards and after a certian batch the went to pci-e connectors , either way though u could wire up a psus for them to run them on 277

flikflak

sr. member

Activity: 408

Merit: 259

I've sold my S4, but I think the boards are internally wired with the normal 6pin PCIe (GPU) plug. So changing the internal psu can also be an option to go for 277V.

jstew

sr. member

Activity: 469

Merit: 500

Quote from: sloopy on October 11, 2015, 10:03:33 PM

Quote from: jstew on October 11, 2015, 08:25:27 PM

Quote from: sloopy on October 11, 2015, 02:57:26 PM

Quote from: jstew on October 11, 2015, 02:17:35 PM

was wondering who knows what psus will operate on 277 , since i am adding a good amount of 480/277 power

as far as i know right now
dps 2000
dps 850/1000w 110/220-277v
ibm 2880
dell 750
dl580 900/1300w 110/220-277v

what else can we add to the list of known to work on 277

known not to work on 277 ( what else can we add to the list that wont work on 277 )

sp10
sp3x
s2
s4

jstew, please forgive my inexperience with the term 277.
You mention 480/277. Is this three phase power or do you mean you are using a single phase of the three phase and it measures 277? I enjoy learning about anything electrical, and would appreciate understanding a bit more here.

Personally, I use split phase 240, which is simply two 120 which are "off phase" from each other. This is how most homes are wired in the US. I am familiar with three phase 480, but each leg would be carrying a load, unless we get into talking Delta or Wye it should be fairly consistent at 240, and of course we can have a hot leg situation. Maybe that is what you mean? You have a stinger reading 277?

its 3phase 480 one phase to ground is 277 , im actually still learning this myself so i may not give the best explanations

I'm with you now, I just didn't remember it being called 277, or measuring that value, but I understand. It is my terminology mistake I'm sure, but I am with you on what you have.
If I may ask, do you have this ran to your home?

no this is not being run in my home. i have a small farm at home and a farm in an agricultural location with a massive amount of power, spring/summer and part of fall we routinely pull 180,000kwh 24/7 , and spikes up over 300,000kwh , i have more power then i will ever use at this location

i dont belive u can get 480v power at most residential locations

jstew

sr. member

Activity: 469

Merit: 500

Quote from: flikflak on October 11, 2015, 09:47:50 PM

Well, I've read myself into HP's common slot server psu's a bit, because those were the first I bought and you can get them for low on ebay. The wiring for a startup is clean an easy, there are only 2 pins to connect and even a platinum grade with a 94% efficiency is around $20-$30. I'm using 230V with 4x460W and one 1200W psu's. Used psu's above 750W and 94% efficiency are quite rare.

So you can get a lot of 500W 277V psu's with 94% efficiency and a good value/money ratio.
link

There are for sure some 80-90% efficiency psu's with >1000W for less than that.

thanks

sloopy

hero member

Activity: 700

Merit: 501

https://bitcointalk.org/index.php?topic=905210.msg

Quote from: jstew on October 11, 2015, 08:25:27 PM

Quote from: sloopy on October 11, 2015, 02:57:26 PM

Quote from: jstew on October 11, 2015, 02:17:35 PM

was wondering who knows what psus will operate on 277 , since i am adding a good amount of 480/277 power

as far as i know right now
dps 2000
dps 850/1000w 110/220-277v
ibm 2880
dell 750
dl580 900/1300w 110/220-277v

what else can we add to the list of known to work on 277

known not to work on 277 ( what else can we add to the list that wont work on 277 )

sp10
sp3x
s2
s4

jstew, please forgive my inexperience with the term 277.
You mention 480/277. Is this three phase power or do you mean you are using a single phase of the three phase and it measures 277? I enjoy learning about anything electrical, and would appreciate understanding a bit more here.

Personally, I use split phase 240, which is simply two 120 which are "off phase" from each other. This is how most homes are wired in the US. I am familiar with three phase 480, but each leg would be carrying a load, unless we get into talking Delta or Wye it should be fairly consistent at 240, and of course we can have a hot leg situation. Maybe that is what you mean? You have a stinger reading 277?

its 3phase 480 one phase to ground is 277 , im actually still learning this myself so i may not give the best explanations

I'm with you now, I just didn't remember it being called 277, or measuring that value, but I understand. It is my terminology mistake I'm sure, but I am with you on what you have.
If I may ask, do you have this ran to your home?

jstew

sr. member

Activity: 469

Merit: 500

Quote from: sidehack on October 11, 2015, 09:58:21 PM

I know there are two different models of PSU that go into the SP3X. Are both known to not work on 277? It's been a while but I was talking to a friend start of this year doing hosting of SP30 gear and he was shifting some to 277V if they had the right PSU. I could be misremembering and it's entirely possible I'm wrong.

i wasnt aware of the 3x having 2 different models of psu's i just had a friend who had tried to run them on 277 and he told me they wouldnt work , ill edit the first post to state the info u posted

sidehack

legendary

Activity: 3374

Merit: 1859

Curmudgeonly hardware guy

I know there are two different models of PSU that go into the SP3X. Are both known to not work on 277? It's been a while but I was talking to a friend start of this year doing hosting of SP30 gear and he was shifting some to 277V if they had the right PSU. I could be misremembering and it's entirely possible I'm wrong.

flikflak

sr. member

Activity: 408

Merit: 259

Well, I've read myself into HP's common slot server psu's a bit, because those were the first I bought and you can get them for low on ebay. The wiring for a startup is clean an easy, there are only 2 pins to connect and even a platinum grade with a 94% efficiency is around $20-$30. I'm using 230V with 4x460W and one 1200W psu's. Used psu's above 750W and 94% efficiency are quite rare.

So you can get a lot of 500W 277V psu's with 94% efficiency and a good value/money ratio.
link

There are for sure some 80-90% efficiency psu's with >1000W for less than that.

jstew

sr. member

Activity: 469

Merit: 500

Quote from: flikflak on October 11, 2015, 02:54:14 PM

HPs 200-277V

HP 1200W Common Slot 277VAC Hot Plug Power Supply Kit (717359-B21)
HP 750W Common Slot 277VAC Hot Plug Power Supply Kit (717364-B21)
HP 500W Common Slot 277VAC Hot Plug Power Supply Kit (717362-B21)

here are the quick specs see page 16 and ff.

EDIT: 480Vac in a WYE configuration and the line to neutral voltage is 277Vac

EDIT-2: Just saw your photo porn pix, so you need a bunch of those psu's... HP 633680-001 500W are 277V and on ebay @25 bucks each -for a platinum psu not bad at all. Specs of the older ones (2013)

all the psus i have for all the s3's neptunes, sp20s will already run on 277 , im just trying to gather a list so as i ad more hardware i can be on the lookout for other psus that work

right now i am using dry transformers to bring everything to 240 , the machines i have liek the s4's etc with built in psus will stay on the 240 , everything i have that i can move to 277 will be moved over to free up room on the 240

jstew

sr. member

Activity: 469

Merit: 500

Quote from: sloopy on October 11, 2015, 02:57:26 PM

Quote from: jstew on October 11, 2015, 02:17:35 PM

was wondering who knows what psus will operate on 277 , since i am adding a good amount of 480/277 power

as far as i know right now
dps 2000
dps 850/1000w 110/220-277v
ibm 2880
dell 750
dl580 900/1300w 110/220-277v

what else can we add to the list of known to work on 277

known not to work on 277 ( what else can we add to the list that wont work on 277 )

sp10
sp3x
s2
s4

jstew, please forgive my inexperience with the term 277.
You mention 480/277. Is this three phase power or do you mean you are using a single phase of the three phase and it measures 277? I enjoy learning about anything electrical, and would appreciate understanding a bit more here.

Personally, I use split phase 240, which is simply two 120 which are "off phase" from each other. This is how most homes are wired in the US. I am familiar with three phase 480, but each leg would be carrying a load, unless we get into talking Delta or Wye it should be fairly consistent at 240, and of course we can have a hot leg situation. Maybe that is what you mean? You have a stinger reading 277?

its 3phase 480 one phase to ground is 277 , im actually still learning this myself so i may not give the best explanations

sloopy

hero member

Activity: 700

Merit: 501

https://bitcointalk.org/index.php?topic=905210.msg

Quote from: jstew on October 11, 2015, 02:17:35 PM

was wondering who knows what psus will operate on 277 , since i am adding a good amount of 480/277 power

as far as i know right now
dps 2000
dps 850/1000w 110/220-277v
ibm 2880
dell 750
dl580 900/1300w 110/220-277v

what else can we add to the list of known to work on 277

known not to work on 277 ( what else can we add to the list that wont work on 277 )

sp10
sp3x
s2
s4

jstew, please forgive my inexperience with the term 277.
You mention 480/277. Is this three phase power or do you mean you are using a single phase of the three phase and it measures 277? I enjoy learning about anything electrical, and would appreciate understanding a bit more here.

Personally, I use split phase 240, which is simply two 120 which are "off phase" from each other. This is how most homes are wired in the US. I am familiar with three phase 480, but each leg would be carrying a load, unless we get into talking Delta or Wye it should be fairly consistent at 240, and of course we can have a hot leg situation. Maybe that is what you mean? You have a stinger reading 277?

flikflak

sr. member

Activity: 408

Merit: 259

HPs 200-277V

HP 1200W Common Slot 277VAC Hot Plug Power Supply Kit (717359-B21)
HP 750W Common Slot 277VAC Hot Plug Power Supply Kit (717364-B21)
HP 500W Common Slot 277VAC Hot Plug Power Supply Kit (717362-B21)

here are the quick specs see page 16 and ff.

EDIT: 480Vac in a WYE configuration and the line to neutral voltage is 277Vac

EDIT-2: Just saw your photo porn pix, so you need a bunch of those psu's... HP 633680-001 500W are 277V and on ebay @25 bucks each -for a platinum psu not bad at all. Specs of the older ones (2013)

jstew

sr. member

Activity: 469

Merit: 500

was wondering who knows what psus will operate on 277 , since i am adding a good amount of 480/277 power

as far as i know right now
dps 850/1000w 110/220-277v
ibm 2880
dell 750
dl580 900/1300w 110/220-277v
HP 1200W Common Slot 277VAC Hot Plug Power Supply Kit (717359-B21)
HP 750W Common Slot 277VAC Hot Plug Power Supply Kit (717364-B21)
HP 500W Common Slot 277VAC Hot Plug Power Supply Kit (717362-B21)

works but is unreliable
dps 2000bb

what else can we add to the list of known to work on 277

known not to work on 277 ( what else can we add to the list that wont work on 277 )

sp10
s2
s4

possibly works on 277

its come to my attention that the sp31 has/may have 2 different models of psus one of which works/ or may work on 277

Topic: list of psu's that will run on 277 - page 2. (Read 2793 times)