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Q: Why do some electrical machine uses high voltage?
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Related questions

Why are there sometimes balls on high voltage electrical wires?

The balls on some power lines are required so that airplane pilots will be able to avoid flying into the lines.


What are the is electrical relays and its principals and operation?

An electrical relay uses a low voltage, low current signal to control an electromagnet. When current passes through the electromagnet, it attracts the spring loaded arm with contactors, which will touch some stationary contactors, closing a circuit on a higher voltage/high current circuit. An example of this is when your thermostat 'tells' the air conditioner to turn on. The voltage & current from the thermostat are low, while the voltage & current necessary to run the air conditioner's compressor are high..


How does the low-voltage circuit controls the power to the high-voltage circuit?

Through a relay or some other kind of high voltage switching device.


Why is a high voltage test conducted on wiring?

High voltage tests are done usually at the request of electrical engineers. When conductors are pulled into a conduit system, it is supposed to be done very carefully. In some instances this can not be done with out subjecting the conductors to mechanical stress. A high voltage test is applied to these conductors to make sure that the insulation factor of the wire has not been compromised. If the conductors do not pass the test, they have to be removed and new wire reinstalled.


What are the difference between high voltage and low voltage?

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.


What is the first voltage source in the world?

Some believe that the first voltage source in the world was the Baghdad battery. In some temples, potery has been found that contains the components to create an electrical charge in order to produce voltage.


What electrical characteristic does a digital multimeter measure?

A: Depends on the meter it measure ohms, voltage, current. some may test for transistor beta health of battery and then some


What are some example of electrical equipment use in housekeeping?

vaccum cleaner, scrubbing machine


What is DYN11 of a transformer?

It's a description of the some of the electrical properties of the transformer. This is a Delta connected highside (the D), wye connected lowside (Y) that is grounded (N) and there is a 330 degree phase shift between the highside and the lowside (the low voltage is leading the high voltage by 30 degrees).


What is a grounded electrical circuit?

we use grounded electrical circuit to prevent high voltage from any type of electrical source. with the help of grounded electrical circuit we by pass the high voltage to the ground. in common language we call it earthing.


A sentence with voltage?

The amount of voltage that is contained in the electricity lines above the train could kill some one if they were even several metres away.


What are some cautions to electrical energy?

It's dangerous at high voltages.