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Questions tagged [resistive-load]

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1 vote
3 answers
134 views

Switch ELECTRICALLY SAFE between 3 resistive loads (16 A each) on a 16 A line

How to switch 3 resistive consumers (heaters), each having a current consumption of nearly 16 A alternate & ELECTRICALLY SAFELY (German standards)? So that only one of them heats at a time and the ...
Lux's user avatar
  • 111
0 votes
1 answer
83 views

DC-DC buck converter inductor current

Draw a simple dc to dc buck converter fed with dc voltage of constant magnitude (= E). The converter supplies a resistive load (=R). Draw the shape of voltage waveform across the freewheeling diode. ...
Bhavya Puri's user avatar
0 votes
1 answer
114 views

How can I control the power through a resistive load [closed]

I have a project where I need to control the power through a resistive load. The project consists of controlling the temperature on the outlet of a pipe, the inlet will flow at a velocity of 2.2m/s ...
portonmg's user avatar
0 votes
1 answer
451 views

Difference Between PID Temperature Controller Operating Modes?

I am in the planning phase of an electric furnace project for metal casting. It's a hobby project for me. Most resources I've found online suggest to use a PID Temperature Controller in combination ...
Schmidty15's user avatar
0 votes
0 answers
48 views

Simulation of an AC-DC circuit

What causes the total harmonic distortions to increase while you increase the filter inductance of an AC-DC circuit with a resistive load and an output capacitor.
Prince Aduse-Poku Nketiah's user avatar
1 vote
1 answer
1k views

What happens if a ceramic power resistor is heated well past its rating?

What would likely happen if a ceramic power resistor was powered well over its power rating (for test/learning purposes and likely buried inside a bucket of sand)? By "well over", I mean 10 ...
user391339's user avatar
0 votes
1 answer
371 views

Control power through a resistive load from a DC source and achieve low current peaks

I want to control the power through a resistive load from a DC source and achieve low current peaks. The use case is 0-1000VDC and 0-15kW (not for the entire voltage range). All other parameters and ...
LukasL's user avatar
  • 128
-1 votes
3 answers
514 views

How do I calculate the real power curve of a PWM resistive load supplied by rectified AC?

When AC is put through a capacitor filtered full wave rectifier, the output voltage is ~1.414 x RMS input voltage for zero load, and nominally equivalent to the RMS voltage when connected to a pure ...
Mike's user avatar
  • 1
1 vote
0 answers
25 views

Multipole Network Power Calculation

How do we calculate the DC power consumption of a multipole resistive network, if we know the currents of all the poles (pins) and all the voltages between the poles? Let's say for example, that we ...
Cerike's user avatar
  • 561
3 votes
1 answer
347 views

Which relay will last the longest?

I'd like to control a 20 amp, 240 volt AC resistive load with a heavy duty contactor. The contactor I have is a Siemens 3TX7130-0DB03 rated for 30 amps, and DPDT. I was originally going to switch ...
Billy left SE for Codidact's user avatar
2 votes
1 answer
133 views

Measuring Current, Resistance and power capacity of an Incandescent bulb [closed]

We are making a cheap 1000w load bank, using 10 incandescent bulbs of 100 watts each, connected parallel to vary the load. On a 230V AC 50Hz Home Supply. I am able to measure the current, but when I ...
crank2giri's user avatar
0 votes
2 answers
228 views

60VAC resistive load (heater) on 220VAC?

I need to run a ceramic fiber heater (Watlow part number vc401a06a, datasheet) at 220VAC. This particular part is rated at 60VAC, for 220W. Can I safely use this on 220VAC, if I'll be controlling it ...
Ben S.'s user avatar
  • 335
5 votes
4 answers
1k views

Is a protection diode needed for a resistive load?

In some applications a flyback diode is added parallel to the load. Is that because the switching causes reverse voltage for inductive loads? What if we have a resistive load instead? Do we still need ...
user16307's user avatar
  • 12.2k