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Most likely this is referring to the initial inrush that occurs when a transformer is energized. The core of a transformer is designed for a specific magnetic field strength; When a transformer is switched into a circuit, it usually will not be switched at exactly a voltage peak. When the voltage is at its' peak, the induced magnetic field will be at zero. If the switching occurs at a voltage zero, the magnetic field strength will attempt to climb to double the designed value; since the transformer core is not generally oversized to this degree, it will saturate. This causes large inflows of current to the transformer, and shows up as even harmonics (mainly second harmonics) in the current waveform. This settles out within a few seconds (generally) to a small energizing current, usually less than 1% of the transformer's rated current.
What else can I help you with?
Does the transformer oil possess any medicinal property especially in relieving joint or rheumatic pain If so what is the solid scientific background?
Oils are frequently used in medicine but transformer oil is strictly meant only for transformers.
What is meant by rated voltage rated current and rated power of a transformer?
The ratings state the limits on voltage and current for operating the transformer at full load. The rated voltage times the rated current gives the rated VA of the transformer. Transormers are not usually rated directly for power because this depends on the power factor of the load applied.
What is center tap transformer?
Center tap transformer is the such kind of transformer that is made to a point half way along a winding of a transformer.
What is the application of pluse transformer?
why should we use pulse transformer rather than ordinary transformer
What is the function of radiator bank in transformer?
The function of the radiator ban in a transformer is to cool the transformer oil.
What are the components required for charging mobile using sound energy or noise?
transformer
What is use of metering core in transformer bushing?
It is the current transformer core meant for metering.
What is meant by boost transformer?
U doht
What is meant by low reluctance in transformer?
In a transformer, or on general, if a material is easily magnetized it has low reluctance.
Can I exchange a 12V 400MA transformer with a 12V 1.25 amp transformer without damaging the unit?
if used for charging-NO if used for supply voltage-yes
What is meant by the term ideal transformer?
ideal transformer is that which has no power losses.if any transformer transfer power to secondary without power loss then that call a ideal transformer
What is meant by capacitor charging problem?
storing of energy
Charger plugged in but not charging?
All what you need to do is to check your charging system if it is working properly. Second thing you can check your charger-socket and your charger head i mean the transformer.
What is meant by the term transform?
ideal transformer is that which has no power losses.if any transformer transfer power to secondary without power loss then that call a ideal transformer
What is The Connection in three phase transformer?
the connection here meant for the connection of windings in three core or limbs of a transformer. it might be delta or star connected.
What is meant by the phrase charging whatever the market bears?
cheeths come from heaven
What will happen if a new branded 132KV transformer is charged at the IR value of 150Megaohm between HT winding and Earth remaining IR values being found infinity?
Sir I am Imran khan in nepal my problem is 6000KVA Step down Transformer is not charging. Transformer Pri- 33000V /105A Sec- 6900V / 502Atransformer all test (open & short circuit ) good . but problem is HT(IR)= value this time IR value 50M ohmBefore 3days HT(IR) = value is 7000M ohm suddenly start Transformer result is Transformer not charging & HT(IR) value is down 50M ohm.
