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A two pole breaker protects both L1 and L2 legs. An over current on either leg will trip the breaker.
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Single or Three phase Ac Circuit?
Both are possible. Single phase requires a neutral (or two phases, such as "Single-phase 240 V) to return the un-used voltage on the "down side" of the generating cycle. Three phases equal "each other out" on the up and down side. One phase generating positively while the other two are at various points of positive and negative on the sine wave to balance each other out.
Why cant take connection from phase line to neutral line?
A connection can be taken between phase lines, or between one phase and neutral. Both methods give a single-phase supply. Between phases the voltage is sqrt(3) times more than between one phase and neutral. In each case the load gives an unbalanced current on the 3-phase system but the idea is to average out the unbalances over a group of single-phase loads.
How to parallel the Dyn1 and Dyn11 Transformer?
you keep the hv & lv on the dyn11 tx straight in phasing. you then put a cross on any two phases on the hv side of the dyn1 tx, and do the same cross with the phases on the lv side of the tx. for instance lets say we cross a & c phases on the hv & lv sides of the dyn1 tx. now draw a diagram with the four tx, split them up, 2 x dyn1, 2 x dyn11. now on the diagram where you have dyn1 tx, change the the phase plates to read cba left to right, also change the lv side to match. leave the phase plates on the dyn11 tx alone to read abc left to right on both sides. now draw the cables going between them on the hv & lv sides. now if a phase always goes to a phase and b & c phases do the same it will all tie in. prove it to yourself and follow a phase threw all the tx's, do the same will b & c phases. I do it all the time at my job, works every time.
Difference between 3 pole and 3 phase?
Phases in AC refer to the number of sine waves of alternating current used to generate the average voltage. In 2 phase, two opposing sine waves are overlapped to give the average voltage delivered, eg 240V in household supplies. In 3 phase, three sine waves are overlapped to produce a more consistent average voltage.
You work with nitrogen pony bottles as a portable source for compressed gas When full the internal pressure is about 2200psi Is the nitrogen a gas or is it in a two phase gasliquid state at 300k?
Neither, the nitrogen is in it's super critical phase. if both T and P are greater than or equal to 126.2K or 33.54 ATM the two phases are indistinguishable.
Can you use a 2 pole breaker for a 120 volt single phase circuit?
A single phase circuit uses a 2 pole breaker if the circuit is 120/240 split phase and the load is connected 240. Both legs are hot, so both need to be protected. This is the normal US/Canada configuration.
How are phase 1 and phase 2 of logistic growth similar?
Phase 1 and phase 2 of logistic growth are similar because a population is increasing, moving toward its carrying capacity during both phases.
My electric water heater is reading 120 volts on each element is this correct for 240 system?
IT depends, You should read 120v on each element, but instead of reading from hot to ground on each element you need to check voltage across both elements and read 240v... so take your meter and put one lead on one hot and the other lead on the other hot of the element and you should read 240 if you dont your only getting one phase to your hotwater heater. What that means is your house has two different phases of 120v coming in, we call it A and B phase. on your panel you have breakers that are numbered on the left side 1,3,5,7.... and on the right 2,4,6,8... reason being breaker 1 and 2 are side by side left to right and are on the same phase and as you go down the panel it alternates phases 3,4 B phase. that why when you see a breaker that is a 2pole or a double breaker there ontop of one another like circuts 1,3 or 2,4 cause loads or appliances that require 240 volts it has to be 120v from both phases A,B to get 240v. Hope this helps! Will Rogers II
What is the different between the terms state and Phase?
You can have multiple phases in the same state. For example: If you pour oil and water together they form two phases (an oil phase and a water phase), but both of them are in the liquid state. Another example is sulfur. Sulfur heated to above its melting point and then cooled suddenly (by drizzling it into cold water, for example) forms a rubbery solid that slowly turns back into the usual yellow form. Both the rubbery material and the regular yellow crystalline sulfur are solids, and they're both sulfur, but they're different phases. Two things that are in different states, though, are always different phases.
What is the difference between the terms state and phase?
You can have multiple phases in the same state. For example: If you pour oil and water together they form two phases (an oil phase and a water phase), but both of them are in the liquid state. Another example is sulfur. Sulfur heated to above its melting point and then cooled suddenly (by drizzling it into cold water, for example) forms a rubbery solid that slowly turns back into the usual yellow form. Both the rubbery material and the regular yellow crystalline sulfur are solids, and they're both sulfur, but they're different phases. Two things that are in different states, though, are always different phases.
What are in PHASE?
Two different liquids (by example water and oil) can exist together in two liquid phases which both can be solutions with the same solute.
What do the section between line of phase diagram represent?
apex
Single or Three phase Ac Circuit?
Both are possible. Single phase requires a neutral (or two phases, such as "Single-phase 240 V) to return the un-used voltage on the "down side" of the generating cycle. Three phases equal "each other out" on the up and down side. One phase generating positively while the other two are at various points of positive and negative on the sine wave to balance each other out.
What is a balanced three phase system?
A balanced three phase system is where the currents into the loads placed on all three phases of the service are reasonably close to each other in amperage.Another opinionA 'balanced' three-phase system describes a three-phase load in which each phase current is identical in both magnitude and phase. If the phase currents are only 'reasonably close', then the load is not balanced.
What would cause 54 volts on both phases at the meter multiple homes affected?
You might only have one phase supplying the homes. Call your power supplier.
How do you reverse the direction of the induction motor?
three-phase motor: Swap the connections of any two phases to the motor.single-phase motor: Usually this can be achieved by reconnecting the starting capacitor from one motor winding to another.Another AnswerAs you have no access to the motor's phases, you must interchange any two of the three line conductors.
What is the action of an emulsifier?
An emulsifier has both a hydrophilic and hydrophobic part. It acts as a surfactant, with one part attracted to the oil phase and the other part attracted to the water phase, stabilizing the junction between the phases.
