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Results tagged with transformer
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user 193601
A transformer couples two or more AC signals through a magnetic field. Often used as galvanic isolation and to transform one AC voltage to another.
1
vote
Connecting two transformers in parallel
"Power flow divides inversely with the relative impedances on a common base"
RUS Design guide for substations - section 5.2.7 - Parallel Operation of Transformers
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0
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Short circuit calculation for KNAF transformer
If the transformer has three ratings like some of the larger transformers do (i.e. "40/50/60 MVA - ON/FA/OF") then you typically chose the mid-rating of 50MVA for any calculations using transformer capacity … @Andy aka these are the transformer types Joga78 is asking about. …
- 267
2
votes
Can any meter be PT connected?
We step down the high voltage using a potential transformer (PT) and similarly using a current transformer (CT) to reduce the amplitude of a current signal. … Yes, there is an input called “transformer input” which you connect the PT or CT to on the meter. …
- 267
0
votes
why does a step up transformer cause lower currents?
An alternating current in the coil on the primary side, induces a flow of magnetic flux circulating in the transformer core. … The magnetic flux is a changing magnetic field which flows in the transformer core.
There is a another conductor wrapped around the secondary side of the transformer core. …
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1
vote
Accepted
What to look for in an isolation transformer?
You are asking about an application specific device so you will most likely find a wide range of options for the isolation transformer. … Fault current in a transformer should always be avoided because amperage levels are usually much higher than then the continuous current ratings. …
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