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Home > Videos > Panel Data Entry Options in EasyPower
Panel Data Entry Options in EasyPower

This EasyPower webinar is taught by Jim Chastain, an EasyPower Engineer. He gives an introduction to the panel data entry options in EasyPower, including highlighting four different methods for doing date entry. He also gives suggestions to improve productivity and how to handle low voltage panels.

See the full transcript of the webinar below.

 
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Full Transcript of the Video

Jim Chastain: Good morning, Jim Chastain with EasyPower. Today's episode in the refresher series is Panel Data Options and how to improve productivity as you're working with panels. Very often, the features are overlooked, but there are several built in the easy power tool suites which can make life easier for those of us who design, build and document projects with panels, whether there's a lot or a few, and so we're going to cover those today. The discussion of how the features can be utilized to extract certain information that may be important or useful. And our arc flash studies is also gonna be touched on in custom schedules because as you work with certain clients or customers they may have a requirement that doesn't fit the standard template for displays of schedules. So, we're going to touch on that as well.

The four basic data entry (00:01:00) methods to add component or circuit data to panels themselves. So, there's direct entry, which I assume most users are exposed to or experienced with. There's panel library load, which requires customizing your standard library file, copy and paste, and then sub system templates. We're gonna go through examples with all four, then we're gonna show how to add outboard panels, both multi-phase and single phase. And how to set those up on a one line and talk a little about the tradeoffs involved. There may be multiple reasons for wanting to do this, not the least of which is being able to carry arc flash instant energy calculations down to the individual panel load, or if we want to coordinate against a large load that may be coming through a panel.

(00:02:00) Both of which are easier if you add a sub panel or outboard daughter loads to an existing panel. So, we're gonna touch on that as well. At this point, we're going to be taking questions on the chat line. The audio is muted so if we don't get to you during the presentation, by all means send us an email with your question and we'll have it followed up. So the first example is essentially a standalone panel, that's set up under utility supply. And everything is at 480 volts, we're coming down to a standard 1 MVA transformer. And we have a single panel right now coming from this bus. Real briefly, we're gonna look at the contents of this panel.

And as you've been exposed to, you can enter data in the (00:03:00) specifications tab, but most of it's for information only. Under incoming we've detailed what cable comes down to this panel. What the main breaker, the fact that it has a main breaker, and what the device settings are, and then when we get to description, you'll see we have, on the left side at least, several different loads and all the protective devices are specked out. The cable lengths were all set at 99 feet because I used auto design. When we get to the right side, we see that we have basically an empty panel and plenty of room for adding loads later on. A couple notes on the display that we're looking at: as you look at the basic panel schedule, or the basic panel data file, there are hosts of additional columns, that can be utilized in (00:04:00) various ways for various purposes.

And you can reduce those to the number that you're displaying, in this case you go to configure, assign a name specifically to the display that you want, and then you just check the columns that you want to remain in the display for your purposes, you save it, and you're off and running. So long, as long as I'm in the gym spreadsheet view, I always have the same column display when I open up a panel. Likewise, you'll notice here, very seldom do we talk about library schedules, but these are spreadsheets that have been set up in the device library, and in my case, I've set up four custom schedules. One for 210 volt AC loads, one for hospitals, one for industrial projects and marinas, and then another one that I just play (00:05:00) with.

So, for right now we're gonna leave it on industrial. And we're gonna save it. And all that does is link that connection to this panel. That pretty much resembles or overviews what can be done for direct data entry. Where we select one of three loads, standard linear load, standard motor or sub panel, and as we select any of those we start to enter the data in terms of how many phases it is and how many volt amps it draws on each particular phase. We'll get into more of that later. Now, as far as creating new panels, what I wanna do is create three daughter panels to this one and we're gonna come at it from three different directions. First of all, I wanna enter a outboarded motor.

(00:06:00) Second, I want to, from my subsystem tab, I come up to insert, sub system, I have saved a copy of this existing panel as a template and so now as I call it up, I can now put this into my, any one line diagram I want, and it'll have the same contents as when we start with, and then finally I'm gonna put a third panel and we're gonna start with just a blank slate to do it from scratch. Now since each of these is outboarded from the other panel, the existing panel, we're gonna take a cable and connect them in to each one.

And the third, now I'm not gonna worry about the cabling (00:07:00) today so I'm just gonna cut and paste, copy and paste, from an existing cable schedule. So I'm gonna copy the value on this cable, data, paste it in here. Paste it in here. And paste it in here. Assuming that all three cables are the same. And I'm gonna go back to my options, and then from my cable data, I'm gonna take it off of my one line diagram, so while I have the name of the cable, I don't have necessarily the data for that cable displayed. So it cleans things up. Okay, first of all we wanna go in and characterize the motor, so we want the motor to be a significant load, 10 horse power is fine, we click to calculate full load current.

We click on calculate to get the X over R value, (00:08:00) noting that the tool has decided that it's less than 50 horsepower, and it's looking up the X over R from an ANSI look up table, and we can plot thermal emit curve if we so desire. So that's pretty much specified, everything's sort of required to add this as an outboard load to my panel. Okay, again the existing one, we've got two ways to work, I can take a copy of what's here, on the left side, and just copy and paste, so as I left click and drag, I copy all of that, control C, and now I go to the other panel. We're not gonna worry about this for now. Open up this side, and under the description let's put in 10.

(00:09:00) And we're gonna control V, and now we've dumped everything that was on the first panel into this panel on the left side so we're gonna save this. All right, let's go back and finish characterizing this one so it can be added to our, so we've got the cut and paste, or the copy and paste down, we look at the right side, there's still a lot of capabilities here. Let's go ahead and add a couple loads. First of all, let's add a three-phase motor. And let's make it 20 horse power. And as we do that you can see the tool divides up the load, the VA load or the amperage between phases. We're not gonna worry about demand factor.

I will go ahead and use auto design to size the protective device and the cable (00:10:00) conductor, so you can see that we've got a square D part number. And let's go ahead and set up a three-phase linear loads, let's say these are heaters in a remote building. So, let's say we've got 2200 VA per phase in each of the three phases. And so, as we finish with this we're ready to do a summary, so we calculate everything that's downstream. Tabulate it, so now we have a hundred-amp panel, looks like a maximum 122, 23. So as we do that, it says the breakers data is incomplete, so let's go back and check out the incoming breaker. We didn't tell it what cable we're connected to. So, let's go verify that.

(00:11:00) We're on C3. And we need a hundred-amp breaker. 225 oughta work. Short circuit looks good, phase trip, looks good. So, we should be able to close it down. Okay, finally we're at the blank panel that we just copy and pasted into. And here we want to use a fuse, we know it's coming from C4, we haven't really looked at the current that this is gonna draw yet, but let's assume it's gonna be somewhere up around 100 amps. Verify the fuse is in the library, which it is. Go to the description. And just go ahead and do a quick summary on it. We can see right now we're at 67 amps, 82 amps, so we got a little bit of head room. Let's go ahead and put a couple loads on the right side.

(00:12:00) And just make them single phase. So, these are all single-phase breakers. And we might as well size those while we're at it. And the third one. All right, so we're ready to tabulate this summary. And we're up to 75, think that sounds pretty good. Let's go ahead and close it, breakers all fine. So now we just need to bring these in to the mother panel and since they were all outboarded we're going to, the left-hand side is full.

So, the (00:13:00) right-hand side is where we want to add these. They're all three phase panels, and they're gonna be considered sub panels. The first one's on C2, because it's a motor it's not gonna show up as a panel, and because we don't have the details from that particular load, you can see everything is grayed out because we'll have to bring that in with the summary, as it summarizes downstream loads. Likewise, on the first panel, I didn't tell it's three-phase. This one's three-phase. Next one's gonna be a three-phase subpanel, except there's actually a panel here, on C3 and it looks like it's panel 1A.

(00:14:00) Three phases. Same difference, we can't determine what the load is until we do a summary, so let's put the other panel on C4. And then, make it three phases. Okay, so the one thing we haven't done, we've copy and pasted, we've entered directly, we're piping in sub panels, so one thing we haven't shown is our library schedule, and as we talked before, we had a library that we used for the industrial plants, and so as we've linked this up, we have the ability now to go out on that schedule and pull in preset loads.

So, let's set, (00:15:00) we want 100 amp A phase load, circuit set up under 100 amp B phase, and 100 amp C phase. Now the advantage here is I've already got these sized and the cables that we traditionally use are set up here for 55 feet. And it seems like I had a, let's go all the way back to the library load. Seems like I had a three phase, five horse power motor. So, let's use that. So now as we've entered each of these loads, we'll go to the library and see how these are set up shortly, but now as we're finished we can summarize the downstream loads and pull these in, so now we've got a 430-some amp panel.

(00:16:00) Obviously, we set this up for 225, so it's telling us we need to deal with this because we've got too much load on here based upon the breaker size that we set up. So, let's go in and verify this. We got a main breaker, 225 amp, let's jump up a little bit here. And deal with 400 amp panel. Calculate short circuit, we're not gonna change anything on the phase trip. See if it'll handle that. Okay, so at this point we've added loads, we've adjusted breakers, and we're ready to calculate our flash instant energy and make sure that everything is under control. Let's see if we've missed anything. Okay, so we've got our arc flash instant energy taken out of the bus level.

So now there's two things we wanted to do in addition (00:17:00) to this, was go back to our data base editor and outboard a couple lighting panels. We'd started out with 480 volts, we know that we need a step-down transformer to 240. So, we're gonna take this and part wire it into a sub panel socket here. And then set up a couple loads, downstream panels, and these will handle just the same, except now these'll be at 210. Now, as we do this, we're accurately, what I'd pick up there? We're accurately describing what the phase distribution is for these going out to sub panels.

What you'll see is we have a (00:18:00) 210 line to line voltage available, and going from line to ground, we get 120 volts out of it. It's not quite the same as a split phase system that we see in residential applications, but certainly we see this fairly frequently in industrial applications. All right, so in many of these, let's say we have just a fuse and this is from C7. And let's say we wanna set this up as a 50 amp or 60 amp panel. Let's see what we got. Verify short circuit. And we don't have a switch involved. Okay. So let's go up and set up five rows. Now the same kinda thing, as I may set up a library load for 210 volt systems.

So, I'm gonna (00:19:00) link that and then reopen it, and as I go in and bring in the loads here, we could have a 15 amp A, 15 amp B and a 15 amp C. Although I think this would only be a two-phase coming off a two phase to ground. So, let's take this one out. Each of these are two-phase, I mean single phase loads, but they're going across a 210 volt supply. All right, gotta get rid of this one. In fact I'm just gonna erase the whole row. All right, so this brings my summary for this panel up, looks like it's only 10 amps, 20 amps.

(00:20:00) Or two tenths of an amp, it's hardly anything. Let's go back and look. 15 VA is only up a tenth of an amp. All right, so that's the lighting panel. So, let's bring it back into this one. Same, exactly the same deal. We're gonna go ahead and set up with a fuse, it's gonna be on C6, which is upstream, we're gonna make this a fuse, aero flex, and it's gonna make it a 100 amp load, or 60 amp load. Or a 50 amp load. And then let's, besides putting our outboarded panel here, we'll also bring in, so this will be on a single circuit, it is on C7, it is this panel, and now let's bring in some heavier loads.

Let's say, single phase 2200 VA, (00:21:00) single phase 2200 VA, 2200. Summarize this, calculate it, right, now we got this thing up to 20-some odd amps. And we're good to go. All right, so what are we missing? Cables. Let's take a copy of this cable, and paste it here. I guess we also need to update our transformer. And clearly you wouldn't need as heavy a cabling as we used up in the 480 volt bus. But for purposes of speeding up the process we're using the same size cable that we used on the 480.

(00:22:00) All right, this could be a 75 KVA, we're gonna calculate it, impedance is 3%, calculate that, save it, see if we got enough to go on a short circuit, calculate our arc flash, so the only thing's out of control ah, this is a good question. So, I mentioned earlier, that these are not split phase circuits, these are single phase, and easy power when calculating arc flash deals with only balanced three phase systems. So, there is gonna be some error built into these single-phase calculations.

And a case in point is especially in lower voltage we could have artificially high instant energy calculations because of my tripling model being a little bit (00:23:00) skewed towards the medium voltages between 400 and 1000 and less accurate in less than 240 volt range. This is a function of our arc flash controls which allows us to change the maximum arcing time if we need to do so on any voltage spectrum. Well before I start doing that, the first thing I wanna look at is my arc flash spreadsheet. So, I'm looking at bus five and I'm trying to figure out why it's so high in energy, and I see PO 1 main, is the limiting factor for current, and currently it's got an arc flash of 2407 volts, well let's kinda look at this.

I've got, okay it's on a 240 side, so it's 210 volts, panel 1 main (00:24:00) is up here at 480, and we haven't specified that the size of the breaker going down to this transformer. So, I guess that's where the first place we wanna start because on the high side we're protecting instant energy here on the 480 volts, but we haven't done anything on the low side, so let's kinda go back and look at that. Again, we could do the same result for limiting the maximum time, if we look at bus five, we see that the arc flash trip time is 40 seconds. Well that's unrealistic in anybody's book. So certainly, we could limit it with a maximum time, but because we don't have a protective device suitably sized, I think it's premature to go in and change the time. So, let's go back into our database editor, save the changes we've done so far.

Let's look at the breaker now on C5, (00:25:00) sub panel C5 and figure out why it didn't get sized to the right, did we even add it in? All right so it's not under these. Okay, here's a motor, here's a load, and we don't have C5. All right, so let's fix that. So, we gotta set up sub panel, C5, and this is going to, where is this going? C5 is going down to, hmmm. Need to expand that out before I make a decision. So, panel three.

Ahh, so it gave me a choice of panel three (00:26:00) or panel four, let's go to panel three. So again, sub panel three, and we don't have multi case circuit breaker set up yet. So, let's go ahead and take the summary, bring the summary up. And let's go back in and set up the breaker on that circuit. And the place it wants us to set it up is under this data dialogue box. All right, so let's use square D multi case circuit breaker. My handy dandy E frame, EGB, should give us 125 amp, we need something much smaller than that, so let's set it up for 40 amps.

(00:27:00) Shouldn't change the summary, but let's go ahead and do it anyway. And save it. Now let's see what our short circuit energy is. Okay now the transformer's under control. Okay, if we look at the arc flash spreadsheet, now we're looking at bus five. Now the device that's tripping is still panel 1A. And its maximum trip time is, let's verify that we updated everything. It's maximum trip time is now 148 milliseconds. So there really is no time, there's no reason to limit the trip time on this breaker artificially. Okay, so what have we done so far?

(00:28:00) We've populated panels with copy and paste, with subsystems, with raw data, or bare entry, we've entered sub panels, we've conducted arc flash studies on single phase, all be it a little bit conservative, it's still within the perimeters of safety and I think we've done a pretty good job of covering the subject. So that's gonna conclude today's schedule. So, the last thing I guess I wanted to do was show my schedule, highlight the panel, right click, insert schedule. And then if we want to we can customize this, by going out and picking up a custom panel schedule.

(00:29:00) That's got arc flash data, room for arc flash data, so now as we put this into the one line, you can see we got interrupt current and these blanks are empty. What we're gonna do is go back, fault and store, the symmetrical current. You can see that we've got that now on our schedule, and then fault and store arc flash energy, and now we've got our arc flash boundary in inches, our PPE and instant energy. So again, success, we've saved the world, and we're ready to close out the session. Any questions, feel free to shoot me an email. Jim@easypower.com, and we hope to talk to you next time we have a refresher training. Have a good day.