Electrical Engineering

Measure the current and voltage on the secondary side.

Use the Watts = Amps x Volts formula. Most appliances will have the wattage on the nameplate. Nameplates that have the amperage on them will be the size of the breaker that should protect that device. There is an exception for motor loads, breaker size is 250% of full load amps. Divide the watts by the voltage and you will get the amperage of the device. This amperage will govern the size of the breaker to use. Breakers start at 15A, then 20A,30A,and 40A for most branch circuits in a house.

You can increase the speed of an Yamaha 48 volt golf cart by installing a larger motor or more powerful batteries. This will produce more power to the wheels and more speed.

Applications: They are used in low power amplifiers DLVA, microwave and RF power monitors, high-frequency triggers, ALC loops, zero bias detectors, ACP tunnel diode circuits, etc. Since they are more resistant to nuclear radiation, tunnel diodes are used in space applications like amplifiers for satellite communications.

The motor is not self starting because the magnetic field acting on the rotor is just pulling and pushing, not rotating.

Amn interesting comparison is to get a piece of string about 1 foot long, with a weight tied on the end. Hold the other end of the string in your hand, and move your hand up and down. The weight will not rotate. However, if you stert it rotating, by using your other hand, the weight will now rotate, even if you only move your hand up and down.This works in both directions. If you want to be really clever, you can use 2 bits of string, and have them going in opposite directions at the same time.

To make the rotor rotate, a capacitor is used. This makes the current in that part of the circuit, lead the voltage by up to 90 degrees. This means you now have 2 fields, and since one is pulling and pushing just before the other, it makes the rotor rotate. Once the motor is running, a centrifugal switch opens to open-circuit the capacitor circuit.

It is also possible to do the same thing with an inductor. In this case, 1 of the windings is much more inductive than the other: more turns of thinner wire. The motor is now started in a similar, but opposite, manner to the capacitor, but will run in reverse.

It depends on region. Techs in nyc make from 25-40/hr depending on experience and skills

Download this .pdf file for the procedure:

http://www.simpson260.com/downloads/tb9-6625-2354-35.pdf

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The term 'burden' is used to describe the secondary load applied to an instrument transformer; the reason for this is so that it is not confused with the 'load' supplied by the high-voltage circuit to which the transformer's primary is connected. A burden is either a measuring instruments (ammeter,voltmeter, wattmeter, etc.) or protective relay, depending on the function of the instrument transformer. 'V.A' is the symbol for 'volt ampere', which defines the 'power' rating of the instrument transformer.

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The generation voltage of vtps is a variation of many different principles.

yes there is

Well, yes. But it isn't much needed as DC is already DC.

Delta connection

The load size in watts is what determines the size of UPS needed. Add up all of the load wattages that you would like to have an uninterrupted power supply. Some UPS units are rated in VA output, for the purposes of this calculation VA is the same as watts. There are many UPS calculators on line if you need any help deciding what to connect to it. Remember the larger the UPS the more the cost is going to be. Read the discuss page for calculator.

The equation that you are looking for is Watts = Amps x Volts. Power is consumed at that rate over a time constant. You are billed by the electrical utility company by the kWh. 1000 watts are equal to 1 kW.

A feature on EXCEL that provides a series of dialogue boxes that help create or modify a chart.

Find the average of your readings. Divide 220 volts into it and you will have your answer.

A material that passes current easily is called a conductor. The best conductors are metals.

I=U/R so 30/2000=0.015 so 15 mA

It really depends on the incident that has caused the compensation to arise, but in most business cases, yes. Compensation is required, like a law.

There are many types of conectors avaliable. Some alum. and other conectors are ratted for both alum. and copper wire. It is easier and cost efective to stock only one type rather than two. Always use a conector ratted for the size and type of wire that you are using. Your suplier should be able to help you determine the proper conector. If not get a licensed electrician to help. Terry North

First thing you need to do is calculate the Voltage across the 8 ohm resistor. As it is in parallel with the 1 & 3 ohm resistors in series that would be the voltage across those two. P = E^2 / R thus P x R = E^2; 2 watt x 8 ohms = E^2 = 4V Quick check: I = E / R = 4 / 8 = 0.5 A P = E x I = 4 x 0.5 = 2 watts Now Rt = 1 ohm + 3 ohms = 4 ohms Caclulate current in the series circuit: I = E / R = 4V / 4 ohms = 1A Now calaculate the power in the 3 ohm resistor: P = I^2 x R = 1 x 3 = 3 Watts. (NOTE: I am using the ^2 to show exponents, in this case it means squared)

Hz = hertz ,which is a measure of frequency. It is equivalent to cycles per second. Your home power is 60 Hz if you live in USA.