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In qelectrotech how can I draw a busbar?

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  • \$\begingroup\$ Your first sentence seems unrelated to the question. \$\endgroup\$
    – Blup1980
    Commented Dec 30, 2012 at 11:00
  • \$\begingroup\$ In electronics the buses length is equal wires. but in power buses are a little longer than wires I think. \$\endgroup\$ Commented Dec 30, 2012 at 14:46
  • \$\begingroup\$ I am an eletronics engineer but I can't see what you are talking about. "Bus length is equal wire" equal in what ? Impedance ? Physical length ? Electrical length ? \$\endgroup\$
    – Blup1980
    Commented Dec 30, 2012 at 18:53
  • \$\begingroup\$ What does electrical length mean? Or impedance is not same in meaning as length I think; I meant length in appearance in diagram. You know that bus in power, is a bar for example copper bar for make connection to other lines. it is a little like a wire. without any rectangle or circle. Anyway I think I should make it myself or import this component to qelectrotech. \$\endgroup\$ Commented Dec 31, 2012 at 18:55
  • \$\begingroup\$ @Blup1980: Thanks. I red it again and red more about busbars. You are right. I edited my question. \$\endgroup\$ Commented Jan 1, 2013 at 7:22

2 Answers 2

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Finally I found how to draw a bus. One way is to make a bus element and then use it.

Making an element is very easy. first select the "new element button and choose the required options. Select the new element button

You can change the size of background from edit menu "size and hotspot"

Now should draw a rectangle and put several terminals on it. to change the orientation of the terminals just select it and from information at left change the orientation. Also add a textfild to beside your element for naming. You can put "bus_" for the default.

drawing element

After select the save button you can use the element "bus".

You can also save your element to a file from file menu.

To use your element select it from elements panel and drag it to the drawing area.

usage of bus

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Alternative approach a busbar element:

enter image description here

It's a black rectangle with a centre pin to attach wires, and two side contacts to stack them side by side.

When you compose them, you get this (all signals are connected):

enter image description here

The symbol is set as terminal, so that the three terminals share the same signal.

Code:

<definition hotspot_y="15" hotspot_x="34" orientation="dyyy" version="0.60" width="70" link_type="terminal" type="element" height="20">
    <uuid uuid="{d35ce3f4-2a25-4e52-9dcf-8d2d2adc872f}"/>
    <names>
        <name lang="it">Busbar</name>
    </names>
    <informations></informations>
    <description>
        <rect width="60" y="-13" style="line-style:normal;line-weight:normal;filling:black;color:black" antialias="false" x="-30" height="6"/>
        <rect width="0" y="-10" style="line-style:normal;line-weight:normal;filling:none;color:black" antialias="false" x="15" height="5"/>
        <input size="9" text="_" y="-25" tagg="label" rotate="true" x="10"/>
        <line x1="0" y1="-4" x2="0" end1="none" end2="none" length1="1.5" style="line-style:normal;line-weight:normal;filling:none;color:black" antialias="false" length2="1.5" y2="-8"/>
        <terminal orientation="w" y="-10" x="-30"/>
        <terminal orientation="e" y="-10" x="30"/>
        <terminal orientation="s" y="0" x="0"/>
    </description>
</definition>

If you paste it to a text file and save it as busbar.elmt you should get a working component.

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