What is the working principle of a clamp meter core?
2021-11-29
Clamp meter core Common transformer cores are usually made of silicon steel sheets. Silicon steel is steel containing silicon (also called silicon), with a silicon content of 0.8% to 4.8%. Because the use of silicon steel to manufacture transformer cores is a magnetic material with strong magnetic permeability of silicon steel itself, a larger magnetic induction intensity can be generated in the wire coil, thereby reducing the volume of the transformer.
What is the working principle of the clamp meter core? Let's analyze it together.
A clamp meter consists of a current transformer and an ammeter. The core of the current transformer can be opened when the wrench is tightened. The measured current-carrying wire can pass through the opening of the core without being cut. If the wrench is placed, the core will close. The test circuit conductor passing through the core will become the coil of the current transformer, and the current will be detected in coil 2 by the current passing through it. Therefore, the ammeter connected to coil 2 has a guide for measuring the current of the measured circuit. The clamp meter can change other ranges by switching the switch dial. However, it cannot be charged and operated when filing. The clamp generally has low accuracy, generally 2.5 ~ 5 levels. For ease of use, there are various range conversion switches in the meter, providing the function of measuring different levels of current and measuring voltage.
What is the configuration of the clamp meter core? Let's analyze it together.
The clamp meter core is mainly composed of the core body, fasteners, and insulation.
The clamp meter core is made of the core body, magnetic conductor, and electrical steel.
Fasteners, clips, screws, glass binding, freshly bound belts, pads, etc.
Insulation, clamp insulation, insulating tubes and insulating pads, grounding plates and pads, etc.
What are the single-phase and three-phase cores of the clamp meter? Let's analyze it together.
Single-phase cores have a single two-column stacked core. There are a total of 5 types of three-phase cores, including single-phase single-column yoke type four-column core, single-phase two-column stacked core, and single-phase radial stacked core, including three-phase column stacked core, three-phase yoke type five-column core, three-phase double-frame core, and three-phase reactor core, totaling 4 types.
What are the three-dimensional and planar types of clamp meter cores? Let's analyze it together.
Clamp meter core The three-dimensional pillars and yokes are not in the same plane, and there are radial, involute, and symmetrical types. Because the magnetic flux distribution is relatively uniform, losses can be reduced. The planar pillars and yokes are in the same plane, with high mechanical strength and good processability.
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