Clamp ammeter based on Rogowski coil
A technology of clamp ammeter and Rogowski coil, which is applied in the direction of measuring current/voltage, measuring electrical variables, measuring devices, etc. It can solve the problems of difficulty in emergency repairs, measurement of wires that cannot be dispersed, and small bayonets, etc., so as to reduce the power outage time of faults , Reduce personal electric shock injury accidents, and facilitate connection
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Embodiment 1
[0034] Such as Figures 1 to 2 As shown, the present invention provides a kind of pincer ammeter based on Rogowski coils, comprising a housing 1, a detection jaw 2 arranged at the upper end of the housing 1, a circuit board (not shown) arranged in the housing 1 and The battery (not shown) that supplies power to the circuit board and the detection jaw 2, the housing 1 is a plastic housing, the detection jaw 2 is electrically connected to the circuit board, and the housing 1 is provided with a display screen 11, the display screen 11 It is electrically connected with the circuit board, and the display screen 11 is fixed on the circuit board by soldering to form an electrical connection. The battery is a rechargeable battery. After the power of the battery is exhausted, the battery can be charged to realize recycling, energy saving and environmental protection.
[0035] In this embodiment, the clamp ammeter also includes a Rogowski coil 3 electrically connected to the circuit boa...
Embodiment 2
[0041] The difference between this embodiment and the first embodiment is that the outer peripheral cover of the detection jaw is provided with a shielding cover for shielding other conductive parts.
[0042] In this example, if image 3 As shown, the outer peripheral cover of the detection jaw 2 is provided with a shielding cover 6 for shielding other conductive parts, so that the detection jaw will not be affected by other conductive parts or power equipment when detecting electric equipment, thereby improving the detection jaw. The accuracy of detection and measurement can accurately locate fault customers, help customers troubleshoot in time, reduce fault outage time, and improve line power supply reliability.
[0043] Specifically, the detection jaw 2 is circular after closing, and the shape of the shielding cover 6 is matched with the shape of the detection jaw 2, that is, the shielding cover 6 is also circular, which can well ensure the maximum detection of the detectio...
Embodiment 3
[0047] The difference between this embodiment and the second embodiment lies in that the structure of the shielding case is different.
[0048] In this example, if Figure 4 As shown, the shielding cover 6 is an integral structure, and the movable cover of the shielding cover 6 is arranged on the outer periphery of the detection jaw and is detachably connected with the housing, so that after the detection and measurement are completed, the shielding cover can be removed and stored for convenience. The overall storage of the rectangular ammeter.
[0049] The structures and beneficial effects of other parts not described are the same as those in Embodiment 2, and will not be repeated here.
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