Electrical Engineering

no the subway cars use electricity to run

The various applications of multilevel inverters are

1. Motor Drives

2.Active Filters

3.Power conditioning

In Ice factories it is most preferred!!!

it demagnetizes severely when field polarities are reversed.

but when connected properly ,can be used for ample applications.

Hi, I want to fit new injectors to my eldorado 1976 and have now found some from a company who believe it or not have 50 of these at $35.00 each..anyway in answer to your question if you have the old ones (which should be green and not blue) get your ohm meter and measure across the two terminals this way it will give you the ohms...the full presure if you are interested should be between 36 and 39 psi...ThanksChas

Voltage can be measured using the difference between the potentiel between two ends of wire or by using a volt-meter.

You can easily measure volt by volt or multimeter but remember voltage always measure across the components but in parallel

If you connect each pole of one battery to the opposite pole of the other, you will have completed an electrical circuit, and electricity will flow. If you leave them attached like that, eventually you will drain both batteries. It's also possible that one or both batteries could explode due to the heat produced by this rapid flow of current. The above may take place when the voltage is low. but in case of relative high voltage the following phenomenon is likely: According to universally recognized, Ohm's law: i = v/r (where i = current, v = voltage, and r = resistance) When two poles are connected through a simple wire (assumed to of no resistance) the result of the above expression becomes infinite (anything divided by zero). That means infinite current flows which may cause explosion/big spark/fire with a loud report.

2

R

Westinghouse.

This depends on your service voltage and whether you have any step down transformers in the building. The only way to know is to check yourself. Use a voltmeter or multimeter, with one lead on L1 terminal and one lead on Neutral terminal. Set the meter to read AC volts, with a range of at least 300 volts (your reading should either be 277 or 120.) The safest way to do this is to deenergize the circuit, place your leads, and then re-energize the circuit without touching anything. You should be able to get a reading without touching anything at all.

3v... 1j=1v*1c

You will need a 3:1 ratio transformer. An output current of 20 amps and a secondary voltage of 47 volts, results in a transformer rated at 940 VA.

never heard of a ac amplifier

You might be able to but why you would want to is questionable. A capacitor could be used in air-con for two reasons. First to start the pump motor if it is a single-phase induction motor. Secondly, as a power-factor corrector. In both cases the two capacitors have probably been correctly selected and there is no point in using a different one.

A replacement capacitor should have the correct voltage rating and the correct VAR rating (or the right capacitance in microfarads).

Bench grinders need to be bolted down to keep them steady. Depending on the type of grinding desired, the small work plates in front of the wheels can be angled to grind at the direction needed.

In a transformer, you increase or decrease the voltage by changing the turns ratio between the primary or secondary windings. Increase the turns on primary, and secondary voltage goes down. Increase the turns on secondary, and secondary voltage goes up.

Note that this usually involves choosing a different transformer, as changing the turns ratio is not something that can be easily done in the field. Some transformers have multiple taps on one of the windings which can be used to change turns ratio.

IPS is instant power supply that is a backup system that start when main energy not available.

To answer this question the voltage that the oven operates on is needed.

To calculate the speed of an induction motor use the following formula, RPM = Hz x 60 x 2/motor # of poles. To answer the question, most of the motors must have 4 poles.

A transformer this size will usually come with a test report which will give this information. Depending on the configuration, it may give zero seqence and positive sequence impedances.

Yes of course. The electrical grid in Honduras has 1,133 km of lines of 230 kV, 919 km of 138 kV, with distribution at 13.8 kV and 35.5 kV.

of course you can

the sea

What is a power limited circuit