Electrical Engineering

The unit hertz means "cycles per second" and is a measure of the frequency of variation of anything which changes during a set period of time, including electric current and voltage. Saying that a generator of electricity runs at 50 hertz means that its current and voltage changes regularly at a rate of 50 times per second. Saying that a generator of electricity runs at 60 hertz means that its current and voltage changes regularly at a rate of 60 times per second. The Hertz value can be changed on the generator by increasing or decreasing the speed (RPM) of the prime mover. The generator has a feed back unit that monitors the frequency and automatically applies more power to the prime mover if the load increases and the generator RPM starts to slow down. The reverse happens if the load drops off and the generator starts to speed up, the power to the prime mover will be reduced. On a diesel generator it is the fuel flow that is increased and decreased to keep the frequency at a constant value. On a water turbine it is the water flow that is increased and decreased to keep the frequency at a constant value.

the formula is 1/RT = 1/R1 + 1/R2 +.... + 1/Rn

RT being total

R1 being resistance in first path

R2 being resistance in parallel path

A thick wire has its cross section area more than that of the thin one .Since the resistance of a material is inversely proportional to its resistance, resistance of thick wire is less compared to.[as cross section area increases the no electrons drifted increases].this applies only to OHMICdevices.

Typically yes because that is what makes sense. However, the subpanel could have the same size breaker as long as the panel were rated for that amperage and the wire sizes were appropriate.

Generac is a brand of generator, what they do will depend on the model you buy. Most models of Generac generators are set to switch on automatically in the case of the a black out but they also have commercial generators for use in business (particularly construction) and RV generators

A generator produces electrical energy by harnessing mechanical energy and using that to rotate coils in a magnetic field.

No.

If the motor runs backwards, swap any two phases to reverse the rotation, like this:

Old wiring:

phase A - brown wire - motor lead T1

phase B - yellow wire - motor lead T2

phase C - orange wire - motor lead T3

New wiring:

phase A - brown wire - motor lead T2

phase B - yellow wire - motor lead T1

phase C - orange wire - motor lead T3

Two methods, one uses a dial that is held in the center of the revolving shaft and is directly read off of the dial face. The second method uses a strobe light. The light is focused on the shaft and the dial on the strobe is turned until it looks like the shaft has come to a stand still. The RPM is read off of the meter face of the strobe light.

volts X amps

A generator uses the rotation of a coil of wire in a magnetic field to generate an electric current (also known as a dynamo), while a motor uses electricity flowing through a coil of wire placed at right angles to a magnetic field to produce rotation of the coil. Look up Fleming's left and right hand rules in a Physics textbook for further information.

That is called an electrical current.

the maximum short current that can be safely break by the circuit breaker.

The device that you are looking for is called a surge suppressor. It is a small device that can be mounted in one of the knock out holes in the distribution panel. They are a four wire device. It should be connected across a common tie double pole breaker. The two black leads from the suppressor connect to each of the terminals of the two pole breaker. The third white lead connects to the neutral bar of the distribution panel. The forth green wire connects to the ground buss, (not to be confused with the neutral bus). With the breaker turned on it continuously monitors the voltage of the distribution panel and automatically sends power spikes to ground.

Power Factor applies to all A.C.(alternating current) power supplies. It ma not be apparent when a purely resistive load is applied as this offers a PF of 1.0 but any other load type will have a power factor somewhere between 0.0 and 1.0.

Dampers are streamlined weights attached to transmission-line conductors, close to where the conductors are secured from insulators. As the name suggests, their purpose is to 'damp' any vibrations induced into the conductors by wind.

Werner Von Siemens

The choke works in conjunction with a starter . When you turn on the light , voltage is applied to the choke, and when the switch opens after a few seconds, it creates a high voltage across the contacts at each end of the tube. This starts the ionization of the gas , which glows. Once ionized, it continues producing light even when the voltage applied is only 120 VAC, the power line voltage.

A common sign of a short circuit is a blown fuse or a tripped breaker. Also visually seeing a burned wire and of course the smell of burned insulation all give an indication of a short circuit.

The load contactor is what the motor load is usually connected to. The auxiliary contacts are usually used in the stop start remote wiring to seal the mag in. Auxiliary contacts are also used to transmit the status of the contactor to a PLC.

ICDP Stands For Iron Clad Double Pole. It is also known as Main Switch. It contain two fuse. One is for phase wire and another is for neutral wire.

36v

this is wer the armature conductors ar being mounted,therefor it helps the flexibility of armature conductors.

An electrical wire will heat up, depending on how much current passes through it. The amount of heat produced (and power wasted) is proportional to the square of the current. Usually, the main worry is that the circuit may overheat.

Thus, it doesn't really matter how many machines or appliances you connect, but rather, how much total power they use.