Electrical Engineering

The program of PSO in Matlab to obtain optimal position for SVC voltage stability will need written in the standard format beginning with the stability grid.

If the resistance is large enough, then there might not be enough voltage difference to allow much current. Since, Voltage = Current * Resistance, if resistance goes really large, and your voltage doesn't change, your current must decrease. An open circuit is where you do not have any current flowing, so whether no current verses very little current is the same is up to you.

When some substances are subjected to mechanical stress this produces an electrical charge in them. If one of these same substances is subjected to an electrical charge it will undergo the same mechanical change in reverse. For more information please consider reading the wikipedia article about piezoelectricity.

what do you mean repair hv winding whats wrong with it

The light is getting dim because the choke is using the energy the lamp should be using. The purpose of the choke is to remove transients; if it is using power at 50 or 60Hz, this is not desirable.

My guess is this lamp is using a new energy efficient (not incandescent) light bulb? If this is the case, don't.

If this is a choke you added to the lamp, then perhaps it's the wrong type choke (too large inductance).

If you added this, it could be that you inadvertently inserted resistance in the lamp wire. Check to make sure nothing is getting hot around your new wiring. A bad solder point could cause this to some degree.

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No, because household electrical systems are only comprised of a single phase.

An ammeter is a measuring instrument used to measure the electric current in a circuit. Electric currents are measured in amperes (A), hence the name

any stabilizer has input and out put terminals . if the question is connecting two stabilizers for one single source ac input then they can connect in .

but the question is connecting their out puts in parallel is job of skilled electrician because

one has to check up lot many things .so not to dare to connect out put in parallel unless

one knows the skill and knowledge of electrician at least.

Voltage leads current or, more specifically current lags voltage, in an inductive circuit. This is because an inductor resists a change in current.

it is used in conveyors belts.

An open circuit has no current ( 0 amperes ).

if you read all three phases with a clamp on amp meter, they should be just about the same. So, yes, it's fine to add the three together and divide by 3 to get the exact average, but really, they should be so close to the same that it doesn't matter. Then you must take that number and multiply by 1.732 to get the real amp draw.

In the US, it is mainly 120-240 volts. Most appliances run on 120, with 240 being used for ranges, water heaters, clothes dryers, and large air conditioners. In Europe, much of the power is 240 volts.

If you mean current sensing using an AVR microprocessor then that entirely depends on the circuit design. A good design would detect the failiure and shut down the current, a bad design would allow the current to flow unchecked and potentially destroy the circuit.

There are schematics to show you how to build one. You can also purchase a converter too. Most involve using a extra motor for the converter. Just search on the internet for the above description to find schematics. Also see the related link below. It may be all you need.

No! and you might have a nasty fire with sulphuric acid spilling everwhere.

A battery pack is always DC and it must always be charged with DC. It must also have a device for limiting the charging current, and good chargers also cut the charging current off when the right voltage is reached.

rms value is measured using voltmeter with the use of heat sensing elements.

Two scenarios are that the motor could be a three phase motor. These three phase motors are manufactured in smaller sizes. The other scenario is that the motor is a 208/220 volt single phase motor. It will operate on 208 volts by taking two legs of the three phase supply for its operation.

I think you mean 'insulation resistance'. This is exactly what it says it is, it is the resistance between opposite sides of an insulator or dielectric. It is in the order of megohms and, in the case of a cable, is inversely proportional to its length -i.e. the longer the cable, the lower its insulation resistance.

Before the object on the positive and after on negetive

1 horsepower = 746 watts, 1 watt = 1 volt x 1 amp => 20 Horsepower = 14,920 watts => 14,920 watts / 220 volts = 67.82 amps

Vizhinjam, Kerala

Usually associated with switching power supply when dormant to active the input impedance can change dramatically until-operating normally