If it's a split-phase system with centre-tapped transformer, then two ammeters are needed, one on each side.
it's not aloud in a combat zone they also will seize it in the military mail
Two ways to connect an ammeter, You can use a direct reading type, by connecting the ammeter in series with the load. You can use a current transformer type or CT. The current transformer looks like a wire wrapped donut with two terminals on its side with a hole through the middle. you pass the wire carrying the load through the center. Connect the direct reading meter to the two terminals. A CT type meter allows you to measure higher currents.
is 3 phase Meter electicity to for the measurement of elektricity 3 phase.
The question is incomplete, because there are no mention about CT & PT ratios. 600VA 5 can not be CT ratio.
If you mean 220 single phase as in two hots and a neutral 110V-0-110V (in the US this would be 240V 120V-0-120V), then the answer is most 3-phase meters cannot be used. A few meters can be setup for either configuration, check the manual for the specific one you want to use. If you mean 220V single phase with just one hot wire and a neutral, then a larger percentage of 3-phase meters can be used, and will meter accurately. But again, the meter has have this as one of the setup choices. Check the manual. One possibility would be if you have a meter that can be setup to use 3 CT's and tell it that it is hooked to a wye system with neutral. If it sees current on just one phase to neutral, this is a valid condition, since the system could be feeding unbalanced loads (remember the meter thinks this is a 3-phase system). This would only work if the meters wiring diagram calls for CT's on all 3 phases. Many meters call for only two CT's, calculating the 3rd leg by using the two known values. This type of setup would not meter accurately for your single phase, I believe. And this will not work on a 110V-0-110V system, because a 3-phase meter expects 120 degrees between phases, not 180. Oh, I didn't mention the case where you might have two hots and no neutral. The 3-phase meter would have to be set up for a delta connection as far as the meter was concerned, since there is no neutral. It could work, not sure on this one.
it's not aloud in a combat zone they also will seize it in the military mail
A CT's secondary winding must never be open circuited as it may provide a shock hazard to the user. The terminals to which an ammeter is connected to a CT is normally provided with a set of links that must be closed, short-circuiting the CT, beforethe ammeter can be removed. The ammeter must the be reinstalled before the shorting links are reopened.
A selector switch is normally used in a place to avoid 3 ammeters usage and instead measuring current in all the 3 phases using 1 ammeter only. Motto: SAVE MONEY.. :D The selector switch provided for ammeter is to check the amount of current taken from each phase supply. (ie) R,Y and B. Each phase supply should be covered with a current transformer with the rated amps capacities. The two leads of the the each phase CT are connected to the respective leads in the selector switch of the ammeter.
Yes, as long as the burden of these ammeters does not exceed the VA rating of the CT.
CT together with a ammeter is used to measure the current in high current or high voltage circuit, where a normal ammeter can not be connected in series in such high voltage or high current circuits. It is a secondary winding (like in transformer) wound on a single core primary wire and relative secondary current reperesnets the primary current. CT are also used protection purposes. Basic principle of CT i same either for metring or protection.
Two ways to connect an ammeter, You can use a direct reading type, by connecting the ammeter in series with the load. You can use a current transformer type or CT. The current transformer looks like a wire wrapped donut with two terminals on its side with a hole through the middle. you pass the wire carrying the load through the center. Connect the direct reading meter to the two terminals. A CT type meter allows you to measure higher currents.
single slice 50KVA, Four slice 100KVA , 16 Slice 125KVA
In measuring high AC currents a current transformer with a suitable rating say 100/5 or 1000/5 are used. The secondary current is usually 5 amps when the fulload current of 100 or 1000 as the case may be is flowing in the mains. It is the univerasl practice to use CT's for measurement of AC currents. In DC circuits the transformer method will not work, so to increase the current that you can measure you can allow a known amount of current to bypass the ammeter and recalibrate the ammeter. In other words, put a shunt in parallel with the ammeter.
Current is the amount of electrons flowing. An ammeter reads this value. Typically an ammeter will be placed in series to measure this flow; there are also "clamp on" ammeters that use a small CT. When placed around a wire, the power flowing in the wire will induce a current in the CT, allowing measuremnt without lifting wires.
Amvot ninyu..!
is 3 phase Meter electicity to for the measurement of elektricity 3 phase.
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