Questions tagged [busbar]
A metal bar used for carrying high currents. Consider using in conjunction with related tags such as "power", "power-electronics", etc.
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Calculation of the cross section of the busbar in the switchgear
To calculate the cross-sectional area of the copper busbar, it is necessary to calculate the permissible current of the busbar.
One of the correction coefficients that must be multiplied in this ...
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How are copper busbars connected to each other?
How are busbars connected to each other? A quick google image search makes it obvious that it is bolts.
https://i.ibb.co/8D05Sk5/power-dist-jpg.jpeg
The specifics of the bolts is what I am most ...
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Copper or Brass for G-Clamp busbar
I'm looking into a busbar for a test setup temporarily wire up G-Clamps.
The test setup will then perform electrical tests (for the cable) or high current and voltage. (100A for seconds)
Existing test ...
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THT power transistor clamp mounting
I have a question regarding mounting THT power transistors (TO220, TO247...). I am building a output full bridge for a welder and I thought about not using PCB at all for the power terminals (D,S). It'...
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Method of paralleling VFDs over DC bus bar
We have some VFD with considerable power output. There are some issues around stable operations. However we found out, that the layout is somehow special.
I added a single VFD, a simplified diagram ...
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Calculation of thermal equivalent short-time current
Regarding checking the thermal resistance of switchgear "Ith", To make the comparison, one can compare the permanent short-circuit current "Ik" calculated by the ETAP software and ...
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Galvanic corrosion between silver plated MCCB terminals and aluminium
We are planning to install a switchboard in one of our garages. The MCCB (moulded case circuit breaker) is used as a main incomer which has silver plated copper terminals. The aluminium busbars are ...
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Bus terminal for wire interconnetion
So I have multiple wires (~5) from 0.75mm² to 10mm². I want to connect them like with Wago, but they are bigger than Wago can hold, and I need to fix them in place on panel.
Example. So these have ...
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Can I connect aluminium conductor to copper bus bar?
This is a follow-up for the aluminum bar question here: Aluminum bus bars connection to PCB
My design now is based on copper - low resistance, assembly by soldering. For now, this is probably the best....
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Aluminum bus bars connection to PCB
I am going to use aluminum bus bars in a high-current PCB. What is the best technique to establish contact between the PCB and the bars?
I plan to make my own bars. The current is generally going to ...
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In a three-phase circuit, do all three phases connect to the same bus or are there three separate buses?
Below is a per-phase representation of a small power system from Power Systems Analysis (Grainger and Stevenson, p206).
I'm trying to imagine the three-phase version of this circuit diagram. Let's ...
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Is "nodal voltage" a bit of a misnomer? Is there really just one voltage at a node?
The admittance model (of power systems) only ever seems to associate one voltage with any given node or busbar (e.g., just V1 at node 1 in the figure below). Is there an implicit assumption here that ...
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A 200-mile-long neutral busbar doesn't sound real
In Chapter 1 of Power Systems Analysis (Grainger/Stevenson), the authors present a sequence of representations of the same power system (Fig 1.25 --> Fig 1.26 --> Fig 1.27). I am confused by the ...
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How to design DC bus bars for batteries?
What factors should we consider for designing bus bars for cell terminals? Suppose I have LFP battery pack made up of 9 cells in series each having maximum of 3C discharge rate and a nominal capacity ...
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Why would a current measurement shunt design use 4 sense pins?
I am interested in low resistance shunts (tens / hundreds of microohms range) used in high voltage / high current setting. Typically, those are busbar-mounted shunt resistors like this one:
The ...
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Why are inverter bus bars made overlapping?
A lot of literature on bus bar design suggests that bus bars should be made to overlap or have equal area such as this.
The reason they mention is the total stray inductance falls due to increase in ...
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Bus Bar voltage calculations for renewable integration to grid
I am confused on the problem bellow
I started off by use P=IV = V^2/Z --> V=sqrt(P*Z)
Assume at each bus bar the power from the PV is being given to the grid with +6KW from knowning that the PV ...
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Lithium ion battery pack busbar thermal calculation
I am designing busbars for lithium-ion battery pack which is 14-series, 9-parallel combination. We have taken busbars sizes as per the industry standard current density 3A/mm2. (Total current 48 A, ...
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Any tips for a new grad in power engineering in Australia?
I am close to graduating from EE at an Australian university. I've recently found a job in the electrical distribution field and I'm realising that I know close to nothing about the standards and ...
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Grounding Distribution Panel Earth Busbar using 'split' cable?
I'm pre-wiring a distribution panel for future installation into my retirement home in the Philippines. I've read that grounding the DP to an earth rod or equivalent should require a minimum 6AWG/...
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How do I recognize which type of bus bar these are? What are thecharacteristics of their circuit? They are so similar
I have a big problem with matching bus-bar names with their corresponding circuits.
For example, there are four circuits for 5 main types of bus bar, but I can't match the name with their ...
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Copper Busbar, DC Copper Busbar [duplicate]
How can I calculate the current carrying capacity of a DC copper bus bar with respect to temperature?
Bus bar specifications:
Copper Busbar
Width=40mm
Thickness=6mm
Ambient Temp5 (C)=4
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How can I calculate the current carrying capacity of a DC copper bus bar with respect to temperature?
How can I calculate the current carrying capacity of a DC copper bus bar with respect to temperature?
Bus bar specifications:
Width=40mm
Thickness=6mm
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Estimated voltage, amperage and phase count of this MASSIVE busbar system?
Any guesses as to the likely voltage, amperage, and phase count running on this massive 3-conductor copper busbar system?
Found in an old factory. Decommissioned long ago, so I can't just poke it ...
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Calculating Joint (Load in lbs or Kn) requirement for a compression lug on top of a bus bar
I have found myself in an interesting scenario that is actually more mechanical in nature but maybe you guys can point me in the right direction.
I am having a hard time finding any ISO, IEC, or ANSI ...
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Current carrying cable/busbar cooling ways in an aircraft
For an aircraft has an altitude 35000 feet, what'd it have to cool its cables/copper busbars up? High altitude means lower air density and it means lower oxygen, convection doesn't make sense and if I ...
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Parallel busbars: how to orient?
As part of my research, I'm doing calculations on a hypothetical high-current (4000 A) medium-voltage (5000 V) DC power transmission system using two parallel busbars. However, I need to decide how ...
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How to calculate temperature of busbar when current flowing through it is 600A for atleast 10mins?
I am new to the bus bar concept. Can anyone please guide me how to calculate the temperature of copper bus bar when current flowing through it is 600A for 10mins.
Should it be this way:
Power, P = ...
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What is the official name of this "shorting bar 5-position" header?
I have purchased this item locally in the past and basically its 5 wires aligned in parallel, and makes my circuitry much easier (eliminates the needs to manually connect 5 individual wires side-by-...
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Do you need to use different materials for a battery busbar?
I'm interested in building custom Lithium Ion battery packs out of reclaimed 18650 cells. I've seen several videos of people doing this and some of them use copper for the positive busbar and brass ...
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Mounting through hole package on busbar
Through-hole components are not designed to be busbar mounted. But I have the need to use "laminated" busbar because of some factors (among others):
High current
Small parasitic inductance
...