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Questions tagged [arcing]

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Very loud sound without smell: electric arc?

Short version: Extremely loud sound a few seconds after power on (400 V AC, 3 phase) in high humidity, no smell: is it arcing? Is it possible that a component exploded without smell? Long version: ...
Sandro's user avatar
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0 votes
1 answer
146 views

How to fix arcing in the contactor in this circuit

I am building the switching circuit using contactor to switch 300A over the contacts. My circuit is below: When I run the circuit, the current is switching but I see arcing. See the scope below: ...
Duy Nguyen's user avatar
1 vote
2 answers
178 views

Potential problems with disconnecting resistive load from transformer

Lets say I have a setup where an AC transformer is outputting 50 Amps at 240 volts from the secondary for some other process and I add an additional purely resistive load that pulls 100 amps at 240 ...
realm god's user avatar
2 votes
2 answers
68 views

Non Fused AC Rated Disconnect Switche for DC System

I have 110VDC supplied by a controller to power a actuator/motor located in a hazardous C1D1 environment. I wish to install a disconnect downstream of the controller in the hazardous location so the ...
ThatGuyEE's user avatar
1 vote
1 answer
138 views

Isolated power supplies for high-voltage DC

I am currently designing a high-voltage system for electrospinning. I am looking for some advice to address arcing and how to isolate the high-voltage DC from the low-voltage DC. In my current setup I ...
Lambcd15's user avatar
2 votes
0 answers
40 views

When using a square wave inverter is arcing a problem when installing a switch

A perfect square wave switches immediately from a high positive voltage to a high negative voltage. Does this mean that a switch installed in a circuit powered by a square wave power inverter will ...
Larry Schlussler's user avatar
2 votes
0 answers
138 views

Hark There is an Arc

AC mains power is almost always transmitted at 50 or 60 Hz. Accepted reasoning is that lower frequencies make transformers larger and higher frequencies have greater transmission losses. ...
Autistic's user avatar
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