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    EATON AMA

    Scheduled Pinned Locked Moved IT Discussion
    eatonama
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    • art_of_shredA
      art_of_shred @dafyre
      last edited by

      @dafyre said:

      @windso said:

      1. Add all your IT load wattages together. Done 😉

      Wattage of the Power Supplies, right?

      1. For 120V loads, take your server currents and multiply them all by 120V. If you have three phases, the process is the same: take all the currents, add together, multiply by 120V. Done!

      What do you mean by server currents?

      Current is amps. My question about the wattage is do you go by the labeled wattage of the power supply, or do you need to calculate the actual operating load?

      JColeKenJ 1 Reply Last reply Reply Quote 1
      • scottalanmillerS
        scottalanmiller
        last edited by

        Server Current is the force of the flowing servers in the computational stream.

        art_of_shredA dafyreD 2 Replies Last reply Reply Quote 0
        • windsoW
          windso Vendor @dafyre
          last edited by

          @dafyre , good point, I edit the wording. See above. Really I mean current on each phase. Poorly worded. Sorry!

          1 Reply Last reply Reply Quote 1
          • art_of_shredA
            art_of_shred @scottalanmiller
            last edited by

            @scottalanmiller said:

            Server Current is the force of the flowing servers in the computational stream.

            Don't try to answer electrical questions with IT answers. lol

            1 Reply Last reply Reply Quote 3
            • dafyreD
              dafyre @scottalanmiller
              last edited by

              @scottalanmiller ❓ 💥 ❓ -- Mind = Blown

              1 Reply Last reply Reply Quote 2
              • JColeKenJ
                JColeKen Vendor @dafyre
                last edited by

                @dafyre Cha-ching!

                1 Reply Last reply Reply Quote 0
                • JColeKenJ
                  JColeKen Vendor @art_of_shred
                  last edited by

                  @art_of_shred Actual operating load is the most practical.

                  coliverC art_of_shredA 2 Replies Last reply Reply Quote 0
                  • coliverC
                    coliver @JColeKen
                    last edited by

                    @JColeKen said:

                    @art_of_shred Actual operating load is the most practical.

                    How would you measure this in an environment without power monitoring? Or is it basically a guess at that point?

                    art_of_shredA 1 Reply Last reply Reply Quote 0
                    • art_of_shredA
                      art_of_shred @JColeKen
                      last edited by

                      @JColeKen said:

                      @art_of_shred Actual operating load is the most practical.

                      Is there a simple percentage to use there as a ballpark figure?

                      JColeKenJ 1 Reply Last reply Reply Quote 0
                      • art_of_shredA
                        art_of_shred @coliver
                        last edited by

                        @coliver said:

                        @JColeKen said:

                        @art_of_shred Actual operating load is the most practical.

                        How would you measure this in an environment without power monitoring? Or is it basically a guess at that point?

                        An ammeter works great if you have one and want real numbers.

                        scottalanmillerS windsoW 2 Replies Last reply Reply Quote 1
                        • JColeKenJ
                          JColeKen Vendor @art_of_shred
                          last edited by

                          @art_of_shred 70-80% is a safe bet. Sometimes it is lower, but that is typically what I default to when sizing.

                          1 Reply Last reply Reply Quote 2
                          • scottalanmillerS
                            scottalanmiller @art_of_shred
                            last edited by

                            @art_of_shred said:

                            @coliver said:

                            @JColeKen said:

                            @art_of_shred Actual operating load is the most practical.

                            How would you measure this in an environment without power monitoring? Or is it basically a guess at that point?

                            An ammeter works great if you have one and want real numbers.

                            Even in the afternoon or do you have to switch to a PMmeter?

                            JColeKenJ art_of_shredA 2 Replies Last reply Reply Quote 1
                            • windsoW
                              windso Vendor @art_of_shred
                              last edited by windso

                              @art_of_shred @coliver

                              Yes! These can be somewhat inexpensive. We usually see IT equipment running at 60% or less of nameplate rating. The challenge we have when sizing a UPS or PDU, and you will have too, is that generic rules always bite you at some point. If you are the exception, you risk taking down everything.

                              Keep in mind that sizing a UPS or PDU at less than 80% or 100% utilization is a good thing. UPSs and PDUs are like the breakers feeding your Christmas tree lights - Once you add too much, the lights go off!

                              art_of_shredA 1 Reply Last reply Reply Quote 3
                              • JColeKenJ
                                JColeKen Vendor @scottalanmiller
                                last edited by

                                @scottalanmiller Lolz

                                1 Reply Last reply Reply Quote 1
                                • art_of_shredA
                                  art_of_shred @scottalanmiller
                                  last edited by

                                  @scottalanmiller said:

                                  @art_of_shred said:

                                  @coliver said:

                                  @JColeKen said:

                                  @art_of_shred Actual operating load is the most practical.

                                  How would you measure this in an environment without power monitoring? Or is it basically a guess at that point?

                                  An ammeter works great if you have one and want real numbers.

                                  Even in the afternoon or do you have to switch to a PMmeter?

                                  Once again sporting your prowess in all things electrical. I defer to your expertise...

                                  1 Reply Last reply Reply Quote 1
                                  • NicN
                                    Nic
                                    last edited by

                                    Couple of ones that might be more home oriented than business:

                                    1. Do you have any plans to get into the home battery market, like Tesla? (or are you already) These are the backup batteries that you can charge from solar and then power your home from (or use as a backup for if the power is out).
                                    2. What would you recommend in the prosumer market for IT pros or technically minded folks to use at home?
                                    windsoW 1 Reply Last reply Reply Quote 4
                                    • art_of_shredA
                                      art_of_shred @windso
                                      last edited by

                                      @windso said:

                                      @art_of_shred @coliver

                                      Yes! These can be somewhat inexpensive. We usually see loads running at 60% or less of nameplate rating. The challenge we have, and you will have too, is that generic rules always bite you at some point. If you are the exception, you risk taking down everything.

                                      Keep in mind that sizing a circuit at less than 80% or 100% is a good thing. You never want to completely oversize, but UPSs and PDUs are like the breakers feeding your Christmas tree lights - Once you add too much, the lights go off!

                                      Just to clarify, I thought that was worded a little confusingly. You never want your load to equal or surpass your protection. Ideally, your expected amp load should only be about 80% of your protection's full capacity. Otherwise, you can exceed its ability to protect and either diminish its performance or nullify the protection altogether.

                                      windsoW 1 Reply Last reply Reply Quote 2
                                      • art_of_shredA
                                        art_of_shred
                                        last edited by

                                        That didn't sound good when I read it, so keep your mind out of the gutter.

                                        scottalanmillerS 1 Reply Last reply Reply Quote 0
                                        • scottalanmillerS
                                          scottalanmiller @art_of_shred
                                          last edited by

                                          @art_of_shred said:

                                          That didn't sound good when I read it, so keep your mind out of the gutter.

                                          Too late.

                                          1 Reply Last reply Reply Quote 0
                                          • dafyreD
                                            dafyre
                                            last edited by

                                            Are any of your PDUs capable of being remotely managed? So we can power stuff on / off remotely?

                                            mdecampM 1 Reply Last reply Reply Quote 2
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