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What are the advantages of automatic load sharing of transformers?
Wiki User
∙ 10y ago
advantages for automatic load sharing of transformer with protective analysis
Wiki User
∙ 10y ago
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Why ac the more prevaeant form of distribution?
High voltages are necessary for transmission/distribution of electrical energy because, for a given load, the higher the voltage, the lower the resulting load current -which means that voltage drops along the lines can be maintained realistically low (amongst other advantages). A.C. is, therefore, more prevalent because its voltage levels can be changed easily and very efficiently using transformers. Transformers will not work with d.c.
Explain how load sharing of generator affected?
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Can a Auto transformer have more load losses than its no load losses?
Power transformers have both no load and full load losses. The key is copper wiring, as copper varies with the square inches of the secondary and primary currents.
What is a load break elbow?
Designed for industrial facilities, these fully shielded and insulated plug-in terminations connect underground cables to transformers, switchgears and junctions with load-break bushings.
Differentiate step-up transformers from step-down transformers?
Step up transformers increase the voltage, while step down transformers reduce it. Higher voltages are better for electricity transmission/distribution, because, for any given load, the higher the voltage, the lower the resulting current. This means the supply conductors can have a lower cross-sectional area and the resulting saving in copper makes the installation cheaper. A lower load current also means lower line (energy) losses.
Advantages of amf panel?
Automatic engine start/stop Automatic load transfer Diagonise the mode of trouble shooting. by sreejath
How does load sharing in transformers happen?
For parallel operation of let's say two transformers, following limiting conditions must be met. 1- The turn ratios must be same. 2- The percentage impedance must match. 3- The X/R ratios must be same. The load sharing is done according to the kVA ratings and %Z of the transformers. The formula is as under: load taken by TF1 = ((kVA1/%Z1)/((kVA1/%Z1)+(kVA2/%Z2)))*total load Similarly, load taken by TF2 = ((kVA2/%Z2)/((kVA1/%Z1)+(kVA2/%Z2)))*total load An example will make the concept easier. For example we have to parallel a 1000kVA TF of 5%Z with another of 1200kVA having 5.5%Z to supplay a load of 800kVA. load taken by TF1= ((1000/5)/((1000/5)+(1200/5.5)))*800= 382.6kVA load taken by TF2= ((1200/5.5)/((1000/5)+(1200/5.5)))*800= 417.4kVA
An advantage of off-peak electricity?
For the electricity companies the advantages are : - Transformers dont damage (Transformers are most efficient at full load) - Constant use of electricity meaning that theres no need for storing electricity (even though its near impossible to store AC) For the customer the advantages are: - Cheaper Electricity at off peak times. (the reason its cheaper is to encourage people to use off peak more so that the transformers run at maximum efficiency - hence not damaging them)
What is paralleling of transaformers?
Paralleling transformers will increase the effective capacity available to the load. There are important requirements before transformers can be paralleled, so it's simply not the case of connecting any two transformers in parallel.
Why ac the more prevaeant form of distribution?
High voltages are necessary for transmission/distribution of electrical energy because, for a given load, the higher the voltage, the lower the resulting load current -which means that voltage drops along the lines can be maintained realistically low (amongst other advantages). A.C. is, therefore, more prevalent because its voltage levels can be changed easily and very efficiently using transformers. Transformers will not work with d.c.
What is the minimum load have to go for a new transformer?
All transformers have a power rating given in kVA which determine the maximum load that can be connected to that transformer.
What is mean of resistive load?
i think it is high value resistance as it is used in Transformers to get the output voltage.
Is transfomer output voltage designed to full load?
Transformers are designed to run at specific voltage levels, and they are designed to handle a maximum load (known as "full load"); this load is usually based on the amount of current that can be pushed through the transformer without overheating, so if 1/2 voltage is applied, full load would be 1/2 of normal. Some "complicated" transformers may have other limitations (dual voltage transformers may have two different full loads specified, and they may not be directly proportional relative to voltage).
Why alternating current is use for electrical system?
The transmission of electrical energy requires very high voltages (for a given load, the higher the supply voltage, the lower the load current). To increase/reduce these voltages, you need transformers. Transformers are AC machines; they do not work with DC.
What is the no load current of 1600 kva transformer?
No load current depends on the design of the transformer, and what voltage it is energized at. It will typically be below 1% of full load, and can be significantly below 1% for utility sized transformers.
Explain how load sharing of generator affected?
wala gne q kabalo
What is advantages-of-parallel operation of transformer?
It enables an existing transformer to be upgraded to meet an increase in load, without having to remove that transformer and replace it with a 'larger' (expressed in volt amperes) one. It provides an useful way of using up a stock of smaller transformers.
