>1000V rms AC
AnswerAccording to BS 7671:2008 Requirements for Electrical Installations, 'high voltage' is formally defined as that 'normally exceeding low voltage', where 'low voltage' is defined as "...(nominal voltages) exceeding extra-low voltage but not exceeding 1000 V a.c. (root mean square) or 1500 V d.c. between conductors, or 600 V a.c. (root mean square) or 900 V d.c. between conductors and earth".
A voltage transformer (known as a 'potential transformer' in North America) is classed as an instrument transformer. It is used to reduce the voltage across a high-voltage load to a value that can be read (usually remotely) by an ordinary a.c. voltmeter, while electrically isolating that voltmeter from the high-voltage system for the purpose of safety. It can also be used to supply an input to a protection relay.
the inductive load which is generally use in high voltage transmission line known as transformer. the transformer transform the high voltage to low voltage.
A transformer that reduces voltage is classed as a step down transformer.
Hi, The main difference is Fuel consumption. High current genertors always consumes much fuel because the load on the engine will be high. The high voltage low current generators doesn't need much fuel to run. You can understand this by comparing 1 kva and 5 kva single phase generators. For both generators voltage will be same (230v) But output current differs. So the fuel consumption also differs. But you get a high current source. Low voltage high current generators can be used for welding kind of stuffs which needs high current to do the job. If you have step down transformer then you can save the fuel.
Any device that uses the generator to supply its operating voltage is electrically classed as a generator load.
A voltage transformer (known as a 'potential transformer' in North America) is classed as an instrument transformer. It is used to reduce the voltage across a high-voltage load to a value that can be read (usually remotely) by an ordinary a.c. voltmeter, while electrically isolating that voltmeter from the high-voltage system for the purpose of safety. It can also be used to supply an input to a protection relay.
September
In the UK, anyone under the age of 18 is classed as a child.
Crawley, Sussex
Wales is a constituent country of the UK, so Wales can be classed as abroad from any country except the UK.
Yes 230 volts is classed as single phase but it is not the only single phase voltage. If you take any two legs from a three phase system, the voltage from these legs is also classed as single phase. The 230 volt single phase is the output of a transformer whose primary is one leg of a three phase primary high voltage system. The 230 volt secondary is center tapped to give 115 volts before the tap and 115 volts after the tap, hence the common voltage of 115/230 that is used in North America.
In the UK the mains voltage is 240 volts
Transformers are used to convert electricity from high voltage to low voltage and from low voltage to high voltage.
Medium voltage is over 1000 v, high voltage is over 45 kV.
No. Your laptop is all classed as low voltage equipment.
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