Clamp Ammeter Principle Operation

Clamp Ammeter principle operation

Clamp Ammeter is an important part of clamp core sensor, which opens and clamps the killed wire by pressing the trigger; It can pass through the clamp mouth without cutting it off. Passing through the iron core wire becomes the primary coil of the current transformer, where the current is induced in the secondary coil through the current. Thus, the Ammeter connected to the secondary coil can indicate the current of the measured line on the LCD. ETCR series clamp Ammeter can automatically shift gears, which is easy to operate. Clamp Ammeter principle operation

Use method of clamp Ammeter:

1. Select the class requirements, range and resolution of clamp Ammeter according to the measured line. Check whether the iron core of the jaw is intact, whether there is rust, and whether the jaw opening and closing are sensitive

2. Before use, familiarize yourself with the instructions and operate according to the requirements

3. During on-site testing, one single-phase line can be directly tested (line current measurement); Can clamp the main and zero lines together (line leakage current); Three wire lines require single detection. By measuring

It can distinguish the absorption current, leakage current, and grounding current to determine whether the motor is overloaded

4. The voltage of the circuit to be measured shall not exceed the value marked on the clamp Ammeter, otherwise it may cause grounding accidents or electric shock. The current of the measured line cannot exceed the measurement limit of the Ammeter. If the current value of the measured line is too large, a large range clamp meter needs to be replaced.

Tips for clamp Ammeter: When testing small current, first wind the wire of the circuit to be tested for several turns, and then clamp the clamp to test. The data obtained is the reading of the clamp gauge divided by the number of coils wrapped around the wire. This way, the measured values are more accurate