Tipik akım ölçüm ile an AC kelepçe ampermetre
In the line with large current, it is generally safe to use clampamper ampmeter to measure;
First set the multimeter to the current gear, and then connect it in series in the circuit of the current to be measured. It should be noted that if it is a DC circuit, pay attention to the polarity. Ölçüm akım veya gerilim, the ampermetre zorunluluk be adjusted to the karşılık gelen dişli, o is, the gear of the meter olmalı olmalı daha yüksek the voltage or current value of of ölçülen nesne. Ayarla to maksimum değer ne zaman bilinmiyor.
When measureing current, the ammeter must be connected in series with the load, çünkü the current in the series circuit is equal everywhere, so the current passing through the ammeter is the load current to be measured. if it is wrongly connected, it is connected in parallel with the load, çünkü the internal resistance of the ammeter is very small, and under the voltage of the load, a büyük akım irade geçiş geç% 2c hangi irade hasar ampermetre.
The structure of the clampamper is actually an AC current transformer. It is equivalent to a transformer with only one primary turn and many secondary turns, and the the secondary load is the önceki AC ampermetre.
When the clampamp ampermeter clampps a phase line, it is equivalent to having a primary winding. At this time, the working current induces a a the magnetic core circuit of the clampamp ammeter, and the magnetic flux passes through the sekonder winding to induce a secondary voltage and form a current in the secondary load. The size of this secondary current is direkt orantılı to the primary current, so the value belirtilen by the gauge head can indirect reflect the size of the primary working circuit current. So it doesn't need to break the circuit to measure current.
