Baluncore's latest activity
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Baluncore replied to the thread Following up on the recent thread about Earth Resistance measurements.If the active current is not equal and opposite to the neutral current, then the RCD will trip. PE and N are linked in the distribution... -
Baluncore replied to the thread Digital phase converters for running 3-phase motors.https://en.wikipedia.org/wiki/Scott-T_transformer
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Baluncore replied to the thread Following up on the recent thread about Earth Resistance measurements.I guess in the UK you have a MEN system. That will have no PE from the supplier, only a neutral. Does the armoured supply cable contain...
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Baluncore replied to the thread Digital phase converters for running 3-phase motors.Yes.
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Baluncore replied to the thread Digital phase converters for running 3-phase motors.The phasor diagram does not change with voltage, the voltages are simply scaled. An autotransformer could be used to boost the input...
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Baluncore replied to the thread Digital phase converters for running 3-phase motors.Your diagram is correct, but the voltages are confusing because you do not indicate if a voltage is Vrms or Vpk, so it is hard to...
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Baluncore replied to the thread Digital phase converters for running 3-phase motors.This is one way to convert a single phase, active with neutral, into three-phase lines with 120° separation. The neutral becomes the...
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Baluncore replied to the thread Digital phase converters for running 3-phase motors.A 3PH supply is just three single phase lines relative to neutral, the phase differences are 120°. The phase voltage, is the voltage...
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Baluncore replied to the thread Digital phase converters for running 3-phase motors.That is the basis of the VFD solution. Alternately, by using a phase shift capacitor to drive the third phase, the circulating field...
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Baluncore replied to the thread Engineering task: How prevent metal balls from getting stuck when flowing down and out of a cylindrical container?.Two balls, with surface friction, can build a wedge across the exit tube. That is because the balls counter-rotate and can lock like a...
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Baluncore replied to the thread I Why are continuously emitting radio pulsars not detected?.A pulsar is a noise source that pulses in a noisier background. The detected signal from the brightest pulsar, fed in real time to an...
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Baluncore replied to the thread Making a compressor from a steam engine or Tesla Turbine.Efficient steam engines tend to be two stage compound engines. What type of steam engine do you have for the project? Are you able to...
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Baluncore replied to the thread I E field in a wire.1. In the first case, no current flows through air, so the E-field will be a dipole field, centred halfway along the axis between the...
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Baluncore replied to the thread I Time interval terminology.The astronomical term is "Synodic Day", because that Earth rotation is measured relative to the Sun, not (sidereal) the stars. The term...
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Baluncore replied to the thread I need a concave mirror with a focal length length of 150 feet?.Why circles? If the mirrors are rectangular, lay them out in a rectangular grid. You only need to place accurately calculated shim...
