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When a transformer secondary lead has been connected to a middle loop that is not an end connector what is it called?
Wiki User
∙ 13y ago
this is a simple ceter tap...however for Y and star systems it may be more complicated. creating different voltage with the same primary's
Wiki User
∙ 13y ago
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Disadvantages of y-y transformer?
Are you talking about this topic or are you asking about the movie with the cars called Transformers
Situations that produce stress are called stressors?
yes its called stressors :) ofcourse
What is a person who looks after machines called?
A mechanic
When two or more simple machines work together they are called?
When simple machines work together, that forms a compound machine.
What is a series of cells linked together called?
A battery
What is an Earthed voltage transformer?
An earthing transformer provides a neutral in a delta connected system.
What is winding transformer?
A winding is the name given each of the coils wound around the transformer's core. A basic transformer has two windings, termed the primary winding (connected to the supply) and the secondary winding (connected to the load).
How could you convert step up transformer into step down transformer?
Injecting power into the higher voltage winding of a transformer will make it act as a step down transformer; injecting power into the lower voltage winding will make it act as a step up transformer. A transformer can be used both ways.
What is the voltage that is provided by the transformer is called the?
Secondary voltage.
What is difference betweena step up transformer and step down transformer?
The difference between the two transformers is the coil ratios between the primary and secondary windings. A transformer that increases voltage from primary to secondary has more secondary winding turns than primary winding turns and is called a step-up transformer. Conversely, a transformer with fewer secondary windings does just the opposite and is called a step-down transformer.
Is the transformer's iron core called the primary?
No. the primary winding is called the primary; the secondary winding is called the secondary. These are both wrapped around the iron core of the transformer. The core helps magnetically link the primary and secondary, which causes the transformation of voltage and current from primary to secondary.
What happen if the secondary side of step down transformer supply a bigger voltage?
it would be called a step up transformer
What is the set up for a transformer that decreases the voltage on the out put side?
A basic, two-winding, transformer consists of two, separate, coils (called windings) wound around a laminated silicon-steel core. The winding connected to the supply (input) is called the primary winding, and the winding supplying the load is called the secondary winding. Alternating current flowing in the primary winding sets up an alternating magnetic field in the core which induces a voltage into the secondary winding. If there are fewer turns in the secondary winding, then the secondary voltage is lower than the primary voltage. If there are more turns in the secondary winding, then the secondary voltage is higher than the primary voltage.
Difference between step up and step down transformers?
Actually an isolation transformer may be physically the same as a Step up/Step Down transformer. The main difference is in the way they are used. Another difference is that in a normal transformer there will be capacitance between the 2 windings, between the windings and core, between the core and shell, etc. These capacitances bring in high frequency noise from outside, which will be transmitted in the secondary circuit. So [in an isolation transformer] wires are connected between each component, (not direct contact, but with insulation present). This permits a leakage current and eliminates unnecessary capacitance. I could make a start to answer this question. Isolation transformer: is a transformer with two separate windings, the primary and the secondary. There is an electrical isolation between the primary and the secondary. Nearly any type of transformer with two non-connected windings could be considered an "isolation" transformer, in that it electrically isolates the primary voltage from the secondary voltage. There are also transformers with one winding (called auto-transformers) and connections for input and output. If the input is low voltage and the output a higher, then you can say it is a STEP-UP transformer. If the input is high and the output is low, then you can say it is a STEP-DOWN. This type of transformer can not by used where safety is a large factor.
Why would a transformer designed to be connected to an emf of amplitude 170V be damaged if connected to a dc emf?
Transformers can't be connected In DC because they are not designed to be. When connected to an AC supply, current will flow through the primary winding. This current produces an alternating magnetic flux in the core. This flux links the primary winding to the secondary winding, inducing a voltage in the secondary winding. The induced current in the secondary winding, then causes a back emf to the primary winding, which limits the current drawin in the primary winding. At no load (when the secondary of the transformer is open circuited), this is called the magnetizing current. If the primary winding was connected to the DC supply, flux would be produced in the core just like the AC example, but this flux would saturate the core and no back emf would be generated by the secondary winding. This results in the only resistance seen by the DC supply being the transformer DC resistance, which is very low. Thus excessive current will flow in the primary, which will eventually damage the winding.
Star-star connection of transformer?
Star Star TransformerStar Star Transformer is formed in a 3 phase transformer by connecting one terminal of each phase of individual side, together. The common terminal is indicated by suffix 1 in the figure below. If terminal with suffix 1 in both primary and secondary are used as common terminal, voltages of primary and secondary are in same phase. That is why this connection is called zero degree connection or 0o - connection.If the terminals with suffix 1 is connected together in HV side as common point and the terminals with suffix 2 in LV side are connected together as common point, the voltages in primary and secondary will be in opposite phase. Hence, Star Star Transformer connection is called 180o - Connection, of three phase transformer.Vikram Meena
What is unit transformer?
UniT transformer are step up transformer which is connected to generating house & step up voltage from 11/15kV votlage to 220/400kV voltage level as requirement or line design parameter. It is just like transformer but connected to unit of the generating house that's why we called it unit transformers.
