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Explain very large transformers are sometimes designed not to have optimum regulation properties in order for the associated circuit breakers to be within reasonable size?
I'm not sure this is true. "Regulation" has to do with how the transformer's terminal voltage behaves under different loading scenarios - under heavy load, the voltage is typically dragged down some; if the transformer regulation is "good", it will not be impacted too much. Furthermore, to offset this, many transmission to distribution Transformers have load tap changers which effectively add or remove windings from the secondary side (typically), allowing manual or automatic regulation as load increases and decreases. Transmission level transformers often do not use LTC, and thus regulation is more limited (these are also usually much larger transformers). The terminal voltage could fluctuate then to +/- ~5% of nominal.
Circuit breakers, therefore, must be sized for the maximum voltage expected (what I have seen spec'd is 105% nominal), and maximum fault current expected. I don't think you can under size the circuit breaker to operate on a lower voltage simply because under heavy loading voltage might be lower than ideal.
What else can I help you with?
Advantages of surge current protection by using super conductors?
A super conductor conducts electricity using electronic and magnetic properties without resistance below a certain temperature. The advantages of these are the larger transformers used to meet increased demand without breaker upgrades and to maintain voltage regulation at new power levels.
Why is voltage regulation important in transformer?
Voltage regulation is important in transformers because it ensures a consistent and stable output voltage despite fluctuations in the input voltage. This is crucial for maintaining the proper functioning of electrical equipment and preventing damage due to overvoltage or undervoltage. In simpler terms, voltage regulation keeps things running smoothly and prevents them from going haywire.
What do you understand by regulation in a transformer?
Regulation of transformer means percentage reduction of transformer secondary voltage due to transformer loading as compared to its no load voltage.Another AnswerA transformer's voltage regulation is defined as 'the change in its secondary voltage, from no-load to full-load, at a specified power factor, expressed as a percentage of its full-load voltage, with the primary supply voltage held constant'.
What is sumpners test?
Type your answer here... This test provides data for determining the regulation, efficiency and heating under load conditions and is employed only when two similar transformersare available. One transformer is loaded on the other and both are connected to the supply. The power taken from the supply is necessary for supplying the losses of both transformers and the negligibly small loss in the control circuit. The primaries of the two transformers are connected in parallel across the same a.c supply. With the switch open, the wattmeter reads the core loss for the two transformers. The secondaries are so connected that their potentials are in opposition to each other.
What do you mean by percentage regulation in rectifiers?
A: Rectifier do not provide any regulation they merely rectify the AC. The percent regulation if any is a function of the capacitor filters and the load impressed on them
Why are large transformers designed not to have optimum regulation in order for circuit breakers to be within reasonable size?
Transformer voltage regulation and size of the circuit breakers have no direct relation
What is zero voltage regulation in transformers and what it means?
'Zero voltage regulation' indicates that there is no difference between its 'no-load voltage' and its 'full-load voltage' -this is only the case for an 'ideal' transformer.
Which term is associated with regulation?
Regulation of what? Temperature? Transcription? Respiration? More information please and I will try to answer.Johnscuba diving
Which of the brain structures is most closely associated with the regulation of emotion?
The amygdala is the brain structure most closely associated with the regulation of emotion. It plays a key role in processing emotions such as fear and pleasure, as well as in forming emotional memories.
Which of these is most closely associated with the regulation of railroad freight rates?
Interstate Commerce Commission
Advantages of surge current protection by using super conductors?
A super conductor conducts electricity using electronic and magnetic properties without resistance below a certain temperature. The advantages of these are the larger transformers used to meet increased demand without breaker upgrades and to maintain voltage regulation at new power levels.
Where do action potentials associated with heartbeat regulation originate?
Action potentials associated with heartbeat regulation originate in the sinoatrial (SA) node, often referred to as the heart's natural pacemaker. The SA node generates electrical impulses that spread through the heart, coordinating the contraction of the atria and the ventricles. This rhythmic action potential initiation in the SA node is crucial for maintaining a regular heartbeat.
What is the emergent properties of the biosphere?
Emergent properties of the biosphere include self-regulation, adaptation, and interconnectedness. These properties arise from the complex interactions among ecosystems, species, and environmental factors, resulting in a dynamic and resilient system that supports life on Earth.
Which is associated with gene regulation in prokaryotic cells a DNA pairing b repressor proteins c RNA intereference d transcription factor?
Transcription factor is associated with gene regulation in prokaryotic cells. It is a type of protein that binds to specific DNA sequences and regulates the transcription of genes by promoting or inhibiting RNA polymerase activity.
What is the regulation provides information on the Army's Risk Management Process?
The regulation that provides information on the Army's Risk Management Process is Army Regulation (AR) 385-10. This regulation outlines the framework for identifying, assessing, and managing risks associated with Army operations and activities. It emphasizes the importance of integrating risk management into planning and decision-making to enhance safety and mission success.
What is the significance of transformer magnetizing inductance in the operation and performance of electrical transformers?
The transformer magnetizing inductance plays a crucial role in the operation and performance of electrical transformers. It helps establish the magnetic field necessary for transferring energy between the primary and secondary coils. This inductance affects the transformer's efficiency, voltage regulation, and overall performance.
How many properties that are not shown by it separated tissues and organs?
There are many potential properties that are not solely defined by individual tissues and organs, such as systemic regulation, feedback mechanisms, and emergent properties at the organismal level. These properties emerge from the interactions between different tissues and organs, along with environmental factors, and contribute to the functioning of the organism as a whole.
