0
Why we get the 0 level in trans farmer when we use delta to star connection when you get the 220 volts at each terminals of star connection of transformer how we get 0 level or neutral equals to 0?
Wiki User
∙ 13y ago
A: In the USA there is D delta connection or Y connection. The Y center point may not be zero if there is circulating current due to mismatch of the phases
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
What is the difference between star delta and wye delta?
With a delta connection, picture a triangle. Each side of the triangle is a transformer or motor winding. Call the 3 corners of the triangle A, B, and C. There are only 3 wires except for a safety ground, which has no connection to, nor is any part of, the power transmission service lines.but for the star connection take our triangle above and use your wire cutters (literally) to cut the triangle apart at the corners. rearrange the three sides (transformer or motor windings) to form a Y. Where the three sides join in the centre, connect a fourth wire. Call this wire "neutral". Call the three ends A, B, and C. Connect the 3 supply service lines to A, B, and C.
What are performance characteristics of a transformer?
The properties of an 'ideal' transformer are (1) voltage ratio equals turns ration, (2) no losses.
When is an atom neutral When mass number equals number of protons equals number of electrons or when atomic number equals number of protons equals number of electrons?
An atom is neutral if the number of protons and the number of electrons it has are the same.
Is pure water pH equals 7 a basic?
Neutral
What property does a neutral atom have?
In a neutral atom, the number of electrons in the outer shells equals the number of protons in the nucleus.
What is bars in cod?
Your connection speed. More bars equals faster connection and less lag.
Why do you use a neutral wire in a circuit?
The power company uses a single transformer outside your home to reduce the voltage from the transmission line voltage down to the 240/120 volts that you can use when you plug in your appliances. The power company is trying to be responsible with their money when they put that transformer out there, so they use a transformer that can provide both 240 Volts and 120 Volts, at the same time. To do that, the output of the transformer is divided into two halves; one half provides 120 Volts, and the other half provides 120 Volts, with a "common" or "center tap" in the center of the 240 Volt transformer winding. It isn't a coincidence that your 240 volt plug that operates the electric range or electric dryer is twice the voltage of the 120 volt plug that operates your TV. By using half of the output from the transformer to provide your 120 Volt service, you are technically using the center tap/Common wire as one of the current carriers for the circuit. In theory, the common wire should be identical to the ground wire, but because real life isn't quite the same as the theoretic, it is necessary to treat them differently. In some VERY OLD neighborhoods there were no 240 volt transformers, and as such, no neutral/common wire.
When the number of protons in an atom equals the number of electrons the atom is this?
neutral
How do you calculation power in a transformer?
In an ideal xmfr, the power in equals power out and only the voltage and current changes.
What is the number of electrons in a neutral atom equals?
In a neutral atom the number of electrons is equal to the number of protons. The opposite charge between protons and electrons is what allows for a neutral atom.
What is the maximum neutral current for a three phase delta star system?
It is either a delta or a star, it can't be both. A delta system doesn't have a neutral so the question must be about a star system. A high neutral current happens for example when one line is disconnected, and the neutral current then equals the current in the other two lines, which is the same current as when two lines are disconnected leaving only one line.There might be ways of calculating how to make the neutral current larger by using unusual power factors, but the above is a useful working maximum that allows all four wires of a four-wire star system to be the same size.AnswerThe term, 'delta-star', refers to a three-phase transformer connection in which the primary windings are connected in delta while the secondary windings are connected in star (wye). This is the standard three-phase connection, in Europe, for distribution transformers. Single-phase loads are connected to the secondary between alternate lines and neutral, in order to try to and balance the resulting load and minimise any resulting neutral current. Obviously, however, without having any specifications supplied, it is quite impossible to answer this question.
In an atom the number of proton equals the number of neutrons?
In a neutral atom, the number of protons equals the number of electrons; it may or may not also equal the number of neutrons.
