Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [split-phase]

28 questions
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11 answers

Why is North American residential power called single phase?

I am under the belief that North American residential power is a special case of two phase power adequately described by the term split phase. Clearly I am in the minority and want to be convinced otherwise but have not found any convincing…
9Harris
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Is 3-phase power in any way better than split-phase power in a residential setting?

My understanding is that in the US (and Canada?) residential units receive split-phase 120V/240V power meaning the voltage between two phases is 2x the line-to-neutral voltage. Here in Europe residential units receive 3-phase 230V/400V power meaning…
QuantumWiz
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Reducing volume for a split-phase 230VAC@60Hz sealed power supply providing 5VDC@50mA

I'm a hobbyist interested in re-designing and implementing a DC power supply providing a \$+5V_{DC}\pm 200mV\$ output with a current compliance of \$50mA\$ (I could live with \$30mA\$ successfully) from a \$230V_{AC}\$ @ 60Hz split-phase US mains…
jonk
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What happens when a grid tie inverter is out of sync?

Background: I have a growatt sph6000 tl bl-us which is a split-phase hybrid solar inverter. I purchased this with the assumption that my grid was split-phase, with the two lines offset by 180 degrees. But it turns out I actually have 2 legs of a 3…
DAB
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Run heater on two powerlines, where the second line is switched according to the main line

I got a water heater which is rated 6kW. The "heating element" consists of 3 heating elements that are connected in series for 1-phase usage. I would like to run two of those heating elements on one phase and the 3rd on a second phase to reduce the…
AndyZ
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2
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1 answer

interleaved vs multiphase buck

I understand the benefit for a interleaved buck as you can reduce the output ripple and components size, as shown by the TI reference design below: However when looking at the LT two phase controller they placed the switching mosfet in series…
KMN
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How can I properly convert two phase AC supply to three phase using capacitors?

I have an AC 3 phase delta connected submersible induction motor with specifications 440 V, 10.5 A, 5 HP, 2800 RPM which is already fitted with a 3 phase PF correcting capacitor in parallel. The capacitor specification is 415 V, 3 kVAR, 4.2 A,…
Samay L
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AC Voltage: Wild Reading: phase-neutral & neutral-ground (240V/120V)

I'm getting some unexpected readings when testing a circuit for my wall mounted AC&heat. I'm on standard USA 120V/240V split-phase/three-wire AC power; the specific circuit is 240V. here's a picture of my wiring terminal: United States Wiring When…
user106677
2
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1 answer

Modelling a "single-phase permanent split-capacitor motor" in LTspice

I'm planning to use an AC fan in an LTspice simulation. The AC fan is made up of a single-phase permanent split-capacitor (PSC) motor. Here is the actual fan: http://uk.rs-online.com/web/p/axial-fans/2781543/ And here is how I'm planning to model…
user16307
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What should be the phase difference in the two windings of a split-phase induction motor?

I'm having a little basic problem here. I'm trying to reconnect the coils of a 4 pole motor (concentric winding) to make a 2 pole motor. I've managed to make it work in 2 configurations so far (in two different voltages), but the one thing I never…
user2934303
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Designing split-phase grid-tie solar system

I'm in the process of designing and building a grid-tied solar power system, and had I'm having trouble finding a solar inverter that isn't MASSIVE (the smallest one I can find that meets my use cases and outputs split phase power is 6kw). The…
ErikaF.
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Replacing a 220V single phase motor with a 220V split phase motor

I am replacing the motor on a whole house fan. The old one was 1/3HP 220V single phase. The new one is 1/3HP 220V split phase. Will the low, high and common connections be the same or is there different wiring for the split phase motor?
Jeffrey Moss
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1 answer

Wiring for a westinghouse electrical motor?

I've got an electric split-phase motor (no capacitor) with a centrifugal switch. Specs Westinghouse electric motor manufactured in 76. RPM 1725/1140 1/2 HP 115V 60Hz Thermally protected L Type It seems to me that the terminals are bypassed as the…
Stécy
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Solid State Analog Phase Shifter

I have a single A/C source that I would like to phase shift into three different phrases, offset by 120 degrees, essentially resulting in something like below: I've seen out in the real world, folks doing this type of conversion by powering a…
Tom Hayden
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Can I use a shielded multiple conductor cable to carry current (0-100mA) from multiple current transformer clamps (CT) that sense AC current?

I need to run cables for 12 CTs (Split Core Current Transformers) that will be sensing current on multiple branches inside my outdoor electrical panel. In case it matters, it is a 240V split-phase 200A panel (typical USA residential). Each CT uses…
8bit Encryption
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