All Questions
Tagged with earth power-supply
13 questions
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2
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Is it necessary to connect the (-) terminal to earth when connecting two bench top power supplies in series to achieve a bipolar supply?
I have noticed when researching online that it is always mentioned to connect the (-) terminal to earth when connecting two power supplies in series to create a bipolar supply. Is there any issue with ...
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0
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238
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Connecting GND on secondary side to protective ground
We have a battery powered equipment which mainly consists of a temperature sensor connected to a microcontroller via a filter. In addition to battery power we have now added the possibility to use a ...
1
vote
1
answer
534
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Isolation transformer = floating ac inverter [closed]
Its said that, in AC power system at power station neutral and ground connected together because of this reason we get electrical shock, as neutral and standing ground are same.
Assume, if I power a ...
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1
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1k
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AC to DC power supply - earth ground capacitance on DC output
I have a mains to 60v DV power supply that I’m using for a project. Needless to say it managed to give me a bit of a shock. This surprised me as it’s supposed to be floating.
With no load the power ...
- 103
17
votes
8
answers
6k
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What is the right way to float a home lab?
I just got myself some new toys for my lab at home like 30V DC power supply, KKmoon signal generator and a Rigol DS1052E. I want to float everything, because I don't want to spend any money on stuff ...
- 173
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810
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Converting an ATX power supply to bench power supply.
I'm planning to convert an ATX power supply to a bench powersupply. It came to my knowledge that the DC ground is actually connected to earth. As I understand, this might become a major issue if I ...
1
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1k
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Potential difference between DC floating power supply and earth ground
I have a question about a simple DC floating power supply: it is as simple as possible, secondary coil -> bridge rectifier -> filter cap, as shown on the figure below.
If I connect the input of the ...
- 53
2
votes
2
answers
373
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Clamping the output ground very close to earth ground
I've noticed that the output ground of most power supply are not quite the same as earth ground. The DC is nearly negligible, but there is usually an AC component between output ground and earth ...
- 187
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3
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715
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Earth Grounding an HV Power Supply
I'm using a Matsusada HV Power supply up to 20 kV. The manual mentioned that the ground terminal of the chassis should be connected to earth. And I had a few questions
What are the best, or at least ...
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1
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3
answers
2k
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Wire the green ac earth wire in wooden chassis?
My own power supply is just about finished. Since i live in Europe the voltage here is 230v, from that it goes into my step down transformer that steps down the voltage to around 20 V AC and then into ...
- 483
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4
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694
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In any electrical equipment having single ph 230 v ac supply ,if neutral and earth wire exchanged then what will be the consequence
I am handling the supply in a locomotive coach and have noticed that the neutral and earth wires have been accidentally flipped,inside the appliance(hot case) is there a problem from the safety point ...
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2
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458
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Can I use a double insulated power supply with a metal framed sculpture with LEDs
I have built a tree shaped wire framed sculpture with LED lighting. The LEDs each have a positive supply to the anode via an insulated wire and resistor, and the cathodes are connected directly to the ...
- 11
3
votes
1
answer
1k
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Oscilloscope ground clips sparks while connecting to power supply
Oscilloscope ground clips sparks while connecting to power supply ground. I do understand The clip is connected to earth ground. But why does it not spark when I am powering a circuit of the supply?
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