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This question needs some more information. The obvious answer would be that there is no load, thus no work being done which equals no current. There is also the possibility that the clamp meter is across all three phases simultaneously (i.e. a multiconductor cable) which under the correct conditions might not show a cummulative current of zero (each current phase is 120 degrees out of phase. using vector math concludes a cummulative current of 0), or the conductor is shielded not allowing the measurement of the electrical fields. This assuming the clamp meter is measuring a self generated interference signal to measure the fluctuations in the electrical field of the conductor.
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What will happen if we use current transformer of different rating for each phase in three phase supply?
A current transformer has to have the same ratio as the meter that it drives. Full scale deflection on the meter is 5 amps which equals the maximum allowed current on the phase that it is reading. A different ratio on the CT to meter would show an erroneous reading on the meter depending on the ratio of the connected CT. To keep costs down the meter is common to all three phases and is read by connecting the meter to the phase CT through a three position switch.
What is it that shows whether or not a current flows?
An amp meter connected in series with the load will show whether or not a current is flowing in a circuit.
What is wrong with your single phase electricity meter if it does not show any numbers in the meter reading panel?
One of the conditions that would cause this is that there is no supply voltage to the top of the meter. Another problem could be, the neutral tickler wire has become disconnected.
What is the ohmmeter reading for open circuit?
The capacitor has no resistance which your direct current ohm meter can show.
Show you a diagram fo a delta connection?
Show digram 3 phase motor 110 and 220
What will happen if we use current transformer of different rating for each phase in three phase supply?
A current transformer has to have the same ratio as the meter that it drives. Full scale deflection on the meter is 5 amps which equals the maximum allowed current on the phase that it is reading. A different ratio on the CT to meter would show an erroneous reading on the meter depending on the ratio of the connected CT. To keep costs down the meter is common to all three phases and is read by connecting the meter to the phase CT through a three position switch.
What is it that shows whether or not a current flows?
An amp meter connected in series with the load will show whether or not a current is flowing in a circuit.
Can any signal have no energy?
In order for a signal to be detected, it must impart energy to the receiver, so, no, there are no signals that have no energy. It might seem that there is no energy. If you carefully consider capacitive and inductive reactance, however, you will note that current and voltage can be out of phase. If they are 90 degrees out of phase, then a "normal" meter will show no power, but there is energy transfer in any case.
How is 110 volts and 220 volts measured?
With a voltmeter Keep volt meter terminal on phase and neutral wire and it will show the exact volatage
What is wrong with your single phase electricity meter if it does not show any numbers in the meter reading panel?
One of the conditions that would cause this is that there is no supply voltage to the top of the meter. Another problem could be, the neutral tickler wire has become disconnected.
How do you use a miltimeater?
A multimeter is used to test an electrical current. The meter is turned to "zero" to begin. The black wire is on a piece of metal to ground it. The red wire then is used to touch the wire in question. If the meter needle moves, there is a current and the meter will show how much current in volts. Multimeters bought in hardware stores should not be used to check current of larger wires.
What is the ohmmeter reading for open circuit?
The capacitor has no resistance which your direct current ohm meter can show.
What do the lines on a phase diagram represent?
The lines show where a phase changes happens to a substance -
How many cm in a meter show the work?
100 centimeters in one meter.
1.20 meter show many feet?
1.20 meter is equivalent too ;3.937007874012 ft
How would you show the heating effect of a current?
how would you show the heating effect of a current?
If you insert two electrodes in the water.will an Ameter show deflection.?
The electrodes will not pass a current unless there is a voltage applied between them. If a voltage source such as a battery or power supply is attached, then a current will flow and a meter will show a deflection. Water is not a good conductor of electricity. Pure, distilled water will pass a lower current than water that has impurities dissolved in it (assuming that other parts of the apparatus remain the same).
