Industrial Electricity and Electronics

An ELSP is a current limiting fuse used in series with the primary fuse of a transformer.

Have you made sure that there is nothing on the card already? Some companies add demo videos and random pictures that take up a lot of space. If there is any delete them and that should clear up the space.

If that doesn't work or there is none, make sure that it is the recommended brand by the make, companies also block some brands that they think are of bad quality from working.

Ive used it in the past and then erased everything...ugh..aggravation.

You will need to determine the power per phase, and add them up to give the total power of the three-phase load. To do this, you will need to multiply the phase-voltage by the phase current by the power factor -for each phase.

Paper Insulated Lead Sheathed Cable.

Used for medium voltage levels.

Schering bridge

To answer this question the voltage and amperage of the unit must be stated. Once this is given the generator size can be calculated.

A zigzag transformer is used in connection with 3 phase and is made up of 6 coils connected in a "Y" manner. Each leg of the "Y" is made up of a coil on a different phase leg of the transformer. The neutral formed by the zigzag connection is very stable. Therefore, this type of transformer, or in some cases an auto transformer, lends itself very well for establishing a neutral for an ungrounded 3 phase system. Many times this type of transformer or auto transformer, lends itself very well for establishing a neutral for an ungrounded 3 phase system. Many times this type of transformer or auto transformer will carry a fairly large rating, yet physically be relatively small. This particularly applies in connection with grounding applications. The reason for this small size in relation to the nameplate KVA rating is due to the fact that many types of grounding auto transformers are rated for 2 seconds. This is based on the time to operate an overcurrent protection device such as a breaker. Zigzag transformers used to be employed to enable size reductions in drive motor systems due to the stable wave form they present. Other means are now more common, such as 6 phase star.

There are no insides of a star delta starter. The components consist of two three phase contactors joined on a common back plate with a mechanical interlock between them so as to prevent both contactors being able to pull in at the same time.

<<>>

There are two ways of wiring three phase electric, one is star and one is delta. You have to know which type to use because Delta will give you three time the power of the same power source connected in a star formation. So you could burn the coils on the motor out.

Also as well as the pattern (star or delta) there is the sequence and if this is wrong then the motor will go backwards.

You would really need to get someone qualified to look at it. Its not something that instructions can be given for over the internet unless you can say the make and model of both the generator and motor, then someone might be able to help you.

See related links

The definition of the ampere is : 'that constant current that, if maintained in two straight parallel conductors of infinite length and negligible cross-sectional area and placed one metre apart in a vacuum, would produce between them a force equal to 2 pi x 10^-7 newtons per unit length'.

nothing i would want to pay.

A breaker is based on the amount of current that the motor draws. This amperage should be taken off of the motors nameplate. In motors of a specific horsepower the amperage is proportional to the voltage the motor uses. Without the motors voltage this question can not be answered.

Press down on the access button and it should say please enter your password then make up a password and repeat it when it says to. If that doesn't work undo the back and press the reset button

The disadvantages are that the change in water flow will effect the fish and making space to put the hydro facility can cause the deaths of plants and animals aswell as destruction of habitat. Hydroelectiric facilities do not produce much electricity compared to other renewable sources.

The main use of electricity in transportation is traction. The use of motors to drive trains, trams and trolley buses. Transmission system vary depending on their use, vintage and country. Direct current (600 -3000V DC) overhead current collection used on tramways and railways. Conductor rail (600-750V DC) are used mainly on rapid transit and underground (subway) rail systems. Except in the United Kingdom where it is used on some main rail lines in southern England. High voltage alternating current (11-25kV AC) overhead transmission. 11kV 60Hz used in the US; 15kV 16 and two-thirds Hz used in Germany, Austria, Switzerland and the Scandinavian countries; 25kV (50 or 60Hz depending on the country) developed in France after WWII and used extensively throughout the world in countries as diverse as China (50Hz), the US (60Hz), UK (50Hz) and India.

Full question is:

What is true of semiconductors

A have a larger band hap than insulators

B Doping a semiconductor makes it less conductive

C Electrons conduct well if they are in a filled valence band

D Conduction band is higher in energy than the valence band

E Holes refer to empty atomic sites in a solid crystal

Semiconductors do not conduct current as well as conductors.

Mathematically, just divide 480 by the square root of three.

Electrically, 480V refers to the line-to-line value of a three phase system. For example, measure the voltage across A-phase and B-phase and you'll get 480V. 277V is the line-to-neutral value. Measure the voltage across A-phase and the neutral conductor and you should get 277V.

A three phase four wire system, the neutral is included in the wire count. It is the fourth wire so no extra neutral needs to be counted.

In North America a 3/0 copper conductor with an insulation factor of 75 or 90 degrees C is rated at 200 and 225 amps respectively. The electrical code states that a 53 mm or 2" diameter conduit can have up to five 3/0 conductors pulled into it.

there should be a diagram on the side of the relay with the pin numbers and some symbols. the pins that are on the coil or control side can be wired power and ground. this generally goes through a switch. the load side has a small gate looking symbol these can be wired power and ground either way and this is the side that you connect to whatever you are powering on. make sure to use a fuse on this circuit on the power lead.

The worst way to generate electricity are fossil fuels and nuclear energy because they produce air pollution, are finite and nuclear energy produce radioactive waste when damaged which is very difficult to recover. Most countries stop using nuclear energy since March 2011 except China.

If you are using 14AWG wire in your circuit, you will fuse with a 15 amp breaker as 14AWG maximum amperage is 15 amps to 100 ft of wire. If the wire run is longer than 100ft, then you would fuse for 10 amps max.

If you are using 12AWG then it can carry 20 amps, etc. Longer than 100ft you would fuse for 15amps. note: 14AWG is called 14/2 and 12Awg is called 12/2 commonly.

Electricity is transferred with high voltage and low current to reduce transmission loss ( I2R , where R= resistance of wire).

As high voltage is present in transmission lines, Danger-high voltage is written.

You have to reduce the voltage by a factor 50/60 to avoid saturation in the active iron of the motor. Accordingly the available max load of the motor is reduced by (50/60)^2. Nevertheless the actual load of the motor is defind by the requirements of the driven machine (pump, elevator, etc). The nominal speed of the motor is reducet too.

Only if you want very dim orange light instead of white light, as the 240 volt bulb will operate at only one quarter its power rating when operated at 120 volts. But its life will be greatly increased.

Inventor(s): Lin; Tak-Huei (Taipei, TW) http://www.patents.com/Tube-light/US5113329/en-US/