What is a ground loop isolator?
Ground loop isolators are used to break the DC circuit path for the audio shield ground circuit. It removes ground loops from the system, which are unwanted.
What does 24vac 50va equal to in amps?
In 50 VA the V stands for volts and the A is for amps.
Hence the formula you are looking for is 50/240 = Amps.
Will a 208 volt rated appliance work on a 240 volt feed?
No, there is over a 15% difference in voltage supplies. This means that the current supplied to the 208 volt equipment will also be 15% higher. Take a 4000 watt range. I = W/E 4000/240 = 16.6 amps. 4000/208 = 19.2 amps. A 240 volt appliance will run on 208 volts but as you can see from above equation the range elements will not get as hot at the lower voltage.
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To get a the answer you have to reckon with the resistance of the appliance. A 4000 watt appliance running on 208 volts takes 19.2 amps, so from Ohm's Law R = E/I, its resistance must be 208/19.2 = 10.83 ohms.
Again using Ohm's Law I = E/R, the current that resistance takes at 240 volts must be 240/10.83 = 22.16 amps. So the power drawn will be 22.16 x 240 = 5,318 watts.
If it is a cooking ring or a heater, that power may cause the temperature to rise so much that its element could glow dangerously white hot and, at best, it may then melt or burn away with lots of smoke and heat. If it was some other appliance it may well overheat so much that it simply catches on fire. So the real risk here is that, if left unattended, the higher voltage could cause a house fire.
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As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.
Before you do any work yourself,
on electrical circuits, equipment or appliances,
always use a test meter to ensure the circuit is, in fact, de-energized.
IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB
SAFELY AND COMPETENTLY
REFER THIS WORK TO QUALIFIED PROFESSIONALS.
What does L1 L2 and N mean in electrical terms?
L1 and L2 stand for "Line 1 and Line 2". These are the two incoming hot legs of a single phase, 220V electrical supply as is typical for residences.
The N stands for the neutral or grounded conductor. This is the white wire in a residential system.
Since L in electricity stands for inductance, L1 and L2 could also possibly be inductor 1 and inductor 2. And the N in electricity means Number of Turns (of the copper wire into a coil). Therefore, it could be about residential wiring or inductors.
Why does one end of the battery have a negative symbol on it?
because batteries works on the principle of electron charge and an electron can have either a more positive or negative charge but the electron wants to have an equal amount of pos. and neg. charge so when batteries are simply they pull the positive charge to one side and negative to the other side and when they come together with a conductor(wire) it creates a current which does the "work" for you. The voltage of the battery pretty much lets you know how strongly the battery wants to create equality between each side thus more current.
How much voltage does it take to injure someone?
That is difficult to answer because there is no fixed answer. As an experiment put both terminals of a 9V battery on you tongue. It will not hurt you but you will surely feel it. Now put your thumb across the terminals of that same battery. Two things should now be obvious to you: 1) that even low voltages can "hurt" you under the right conditions, and 2) voltage is not the only factor that determines how harmful.
Which is the positive wire between solid black and black with white stripe?
White is neutral in home wiring. Red is sometimes used in 3-way switches and dimmer applications, so it is likely red is hot in your application if it pertains to home wiring. The term positive would just apply to DC wiring since AC goes positive and negative. For example your car battery has Red as Positive and Black as Negative.
How can you supply 220v machine to 208v supply?
Most 220 volt equipment will work on 208 volt supply. If the machine has a resistive load then the watts output will be lower than if supplied from a 220 volt source. If it is a motor load you will find that the equipment may run a bit slower but most motors will take the lower voltage. If the machine is a plug in device, install the appropriate receptacle to match the pin configuration and plug it in. If it is a hard wire installation this should be done by a qualified person.
There are many types of electric testers in use. One kind is a two contacts tester where there will be two connecting leads and one or more neon lamps to indicated the presence and approximate magnitude of test voltage. Here one contact is placed on the wire to be tested and the other lead is placed on the reference level like ground or other circuit parts.
Another kind is a one contact tester which usually is in the form of a screw driver. The end portion is placed in contact with the wire to be tested and the back of the tester is touched by a body part. A neon lamp inside the transparent tester body will glow if the wire is live. The lamp needs only very little electric current to glow that, it uses the capacitance and resistance of the human body to complete the circuit by making a current flow to the ground.
How many ground rods are needed for a 100 amp service?
If you're asking this, you shouldn't be installing an electrical service. --- This type of question usually means you aren't ready to do this yourself. Study some electrical material and the National Electrical Code and work this answer out for yourself, or call a professional electrician. If I were to give you an answer, you might attempt to do something you shouldn't be doing, and that may cost someone a shock, a home fire, or their life.
i dont know maybe your lightbulb is messed up. There could be many possibilities depending on the situation. If a high wattage unit comes on (like an air conditioner), there could be a drain on the system that causes a light to dim. Sometimes during a storm, there could be a problem at the power substation including a power surge or break in the system, that could cause lights dimming. If too many strands of lights in a series are connected, you run the risk of overloading that circuit, which could cause dimmed and blown lights, and potentially dangerous situations.
Consult a Master Electrician for more information.
How do electric bells use electromagnets?
When an electric bell is operated, a current pass through an electro-magnet intermittently. The plunger moves back and forth due to intermittent magnetic operation. The moving plunger or lever connected to it hits a metallic body intermittently to ring the bell. The movement of plunger itself cuts off and cuts in the electric circuit intermittently.
How many amps does a 230 volt motor draw?
This question is nonsensical, there is no answer.
230V AC describes a 230 volt potential (in form of alternating current), but does not imply a minimum, maximum or actual current (ampere).
In Western Europe, 230VAC or 240VAC domestic circuitry is typically fused with 13A, 16A or 20A, but other values are possible and common.
What would happen if you used a copper penny to replace a melted fuse?
Well, first off most cents are zinc now, but in any case using a coin to replace a fuse is a very bad idea. A fuse is designed to be the weak link in an electrical system. It's intended to fail before any other part of the system does, so that expensive things like stoves, TVs, and inside-the-wall wiring don't fail in the event of a serious electrical problem. And even more important, a failure of one of those items could cause a fire!
Bottom line, keep some spare fuses on hand, or if possible have a licensed electrician replace the fuses with circuit breakers. They're special switches that open up during a over current fault or overload so they protect the system just like a fuse, but they can simply be reset after the cause of the overload has been fixed.
What is the role of thermocouple?
Thermocouple is a heat sensing device.
It is made up of 2 dissimilar metals twisted/joined at one end called a junction and that is made Hot and the other end or tell end is cold (may be at 0 degree C). then a voltage is developed accross the two dissimilar metal, this principle is called SEEBECK EFFECT.
The voltage developed is directly propersional to the difference in temperature.
How do you fix your computer if there is no display when you turn it on?
There might be 3 reasons for this:
1. The fuse in the power plug has gone.
2. There might be a damaged part of the wire.
3. The PSU might have either died or not connected properly.
"Locked Rotor Current" also called LRA which stands for Locked Rotor Amps, is commonly found on electric motor nameplates. Locked Rotor essentially means the motor is not turning. The current or amps in this case have to do with the amount of electrical energy required to start the motor. At the instant the motor is switched on, it is not turning, and draws the maximum current. As the motor starts to turn, the current goes down. This required energy is much greater than the Full Load Amps or Running Amps, which is the current drawn when the motor is running at normal speed under full load. The current required to start the motor will depend on the type of motor as well as the specified design voltage required for the motor, typically the higher the voltage, the lower the required amperage or current.
The term also applies to equipment such as Air Conditioners which have an enclosed motor inside the compressor, as well as the condenser fan(s) etc.
Depending on the type of motor, LR current can be anywhere from 3 to 8 times the normal running current, also called RLA, or running load amps.
What are the fault-finding techniques to be used if the equipment fails to operate correctly?
1. Pin point the problem - what is not happening as expected.
2. Read the error messages, error codes if any from the equipment.
3. Refer the manual for troubleshooting points follow the steps provided.
4. Talk to the expert and explain the problem and inform the observed behavior of the equipment.
Would incorrect size terminals cause wires to burn out?
What causes wires to burn in terminal strips is the lack of tightness between the set screw and the conductor. A loose junction will start to arc. Minor at first but as the oxidisation from the heating and cooling continues the resistance of the joint becomes higher.
As the resistance becomes higher the more amperage is needed to flow through the joint to operate the load. The heating of the conductor will get high enough to melt the insulation from the conductor. Once the insulation is gone this becomes conducive for a short circuit to occur.
If the wire gets hot enough and the circuits breaker does not trip, the wire can completely burn off from the terminal strip and the circuit will open.
How do you identify if an English Electric HRC fuse CSA C22.2 No. 106 is type J?
Usually the type of fuse is encoded into the fuse number. For example a English Electric fuse C20J, the C represents that the fuse is a cartridge type, the 20 is the amperage of the fuse and the J represents the speed of the fuse. Also the J states that the fuse is a type J fuse.
How many watts can install in 1000 microfarad?
Zero watts can be installed in 1000 micro farads. Watts are the product of amperage times volts. Micro farads is a value used in talking about capacitance.
How many amps do 8 6 volt dc batteries put out?
The amperage drawn from batteries is governed by the connected load. The voltage of the batteries can be one of two voltages. in parallel the 8 batteries will give you a voltage of 6 volts. In series the 8 batteries will give you a voltage of 48 volts. The amp/hour capacity of the batteries will give you the amount of current the device can draw over a specific length of time. Equation to fine amperage is I = W/E, Amps = Watts/Volts. Watts = Amps x Volts.
This is a common phenamenon when the atmosphere air is dry (generally during winter). When you are sitting inside the car for some time, you generate a static charge and it gets released when you touch metalic handle of the car
What is the locked rotor current on a 3 ton air conditioner?
You need to first know the wattage of the motor and locked rotor current can be tested at a lab only