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What is the difference between a phase to ground connection and a grounded wye connection?
Wiki User
∙ 11y ago
A 'grounded-wye' connection describes a wye-connected supply, whose star-point (or common point) is grounded. This is essential in order to ensure stable phase voltages. I'm not sure what you mean by a 'grounded-phase' connection; if you mean a 'grounded-line' connection, then this is a short-circuit to ground from a line conductor.
Wiki User
∙ 11y ago
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Should there be voltage between ground and each hot of a three phase power system?
There are two types of connections in three phase systems. One is a delta connection where there is no connection to ground, so you should not get any voltage to ground. This is classed as a three phase three wire system. In this type of system any one of the phase wires could become grounded and no one be the wiser. Code requires that grounding lights be added to a delta system to visually show what the phase condition is in relationship to ground. The other type of system is a wye or star point connection. This is classed as a three phase four wire system. In this type of connection the coil ends are all joined together and grounded. You would have voltage between the phases and a lower voltage to ground. The voltage to ground would be the phase voltage divided by 1.73.Yes. If there is no voltage between a hot and a ground, either the hot isn't really a hot or the ground isn't really a ground.AnswerThere is always a potential difference between a line conductor and ground, regardless of whether it is a three-wire system or a four-wire system. This is due to the capacitance between line and ground.
How do you connect grounding of i and c?
Grounding of I and C? to ground something is to have a wire that goes to a grounded connection the bare wire in a normal wire set.
Will an arc fault breaker work without a ground?
Yes a GFCI will work without a ground wire. A GFCI looks for a current differential between current in on the "hot" wire and current return on the neutral wire. Since current is the same throughout the circuit, no difference, no trip. If the load grounds out or shorts out, the current then takes the path of least resistance through the ground and not the neutral. This creates a difference between the "hot" and return neutral current and the device trips the circuit open.
What is a cathode follower?
A vacuum-tube circuit in which the input signal is applied between the control grid and ground, and the load is connected between the cathode and ground. Also known as grounded-anode amplifier; grounded-plate amplifier. It has a VERY high input impedance, and a low output impedance. Both properties have useful applications.Its equivalent in solid state is the emitter follower.
What is the difference between first floor from ground floor?
Actually, there is not much difference, but a ground floor is usually the very bottom one and the first floor is usually the one above
What is difference between floating load and ground load?
In case of grounded load load is grounded and voltage is measured across it. while in case of floating load load is not grounded instead it is connected in feedback circuit.
Why is ground wire connected to hot water connection on water heater?
So the tank is grounded.
Where is the ground connection at other than the battery on a 97 buick lesabre?
I'm not sure exactly what your asking, but the entire chasis of the vehicle is considered 'grounded', because of the ground connection at the battery.
How do you check your ground connection on a motorcycle?
Check your connection at the battery and where it bolts to the frame. Make sure they do not have corrosion or paint stopping a metal to metal connection. If all is good, you are grounded.
Where is the ground wire on your starter to your Dodge truck I tried to tighten the starter and I accidentally touched the ratchet to the manifold and it sparked does that mean starter not grounded we?
Most starters are grounded through their mounting bolts and contact with the engine. Some starters have a braided ground cable between the starter and engine or frame. The arcing occurred because you shorted between an electrically "hot" connection and ground , i.e. the manifold.
What is the principle of virtual ground?
If no current flows between two points. ONE point is grounded then other point is said to be virtually grounded. THIS is called principle of virtual ground.
How do you tell if the ground wire is bad?
If the voltage between real ground and the ground wire is not 0.0000 Volt, then the wire is not grounded properly.
GFCI circuitry often checks for a difference in current between the ground and neutral?
A GFCI monitors the current in the ungrounded (hot) conductor and the grounded (neutral) conductor. If there is more than 6mA of current difference between the two the GFCI will open the circuit.
1991 capri does the radio need to be grounded separetly oR IS IT ALREADY GROUNDED through THE HARNESS OR ANTENNA?
It is not going to hurt to ground it with a secondary ground if you suspect it is not grounded. It is not grounded thru the antenna. Just run a ground wire from the radio chassis to any ground location.It is not going to hurt to ground it with a secondary ground if you suspect it is not grounded. It is not grounded thru the antenna. Just run a ground wire from the radio chassis to any ground location.
How are loads transmitted to the ground?
Loads are not really transmitted to ground. Yes, there is parasitic induction due to capacitive coupling, but the return path for the hot conductor(s) is(are) another hot conductor(s) or neutral. While neutral is grounded, it is essentially a single point connection and, by Kirchoff's current law, has little or no current through ground. It would seem that this is contradicted by the wye connection because, ultimately, neutral is grounded, making the ultimate return path to be ground. In fact, however, looking at the big picture, each leg in the wye connection is balanced, so it looks like a delta connection. Unless there is some fault, the net current on ground, as seen by the substation transformer, and by the earth ground between it and the service drop, is nominally zero.
What is the difference and how to differentiate between neutral and hot wires if both wires have the same color?
If the electrical box is grounded, check with a tester, the "hot" wire will have a voltage to the the grounded box the neutral wire will not. If the box is not grounded, with the breaker supplying the voltage turned off, use a tester on the resistance scale to check for continuity between the wires and a cold water pipe or some other grounded medium. The neutral will have continuity between the wire and a ground the "hot" wire will not.
Should there be voltage between ground and each hot of a three phase power system?
There are two types of connections in three phase systems. One is a delta connection where there is no connection to ground, so you should not get any voltage to ground. This is classed as a three phase three wire system. In this type of system any one of the phase wires could become grounded and no one be the wiser. Code requires that grounding lights be added to a delta system to visually show what the phase condition is in relationship to ground. The other type of system is a wye or star point connection. This is classed as a three phase four wire system. In this type of connection the coil ends are all joined together and grounded. You would have voltage between the phases and a lower voltage to ground. The voltage to ground would be the phase voltage divided by 1.73.Yes. If there is no voltage between a hot and a ground, either the hot isn't really a hot or the ground isn't really a ground.AnswerThere is always a potential difference between a line conductor and ground, regardless of whether it is a three-wire system or a four-wire system. This is due to the capacitance between line and ground.
