LEM Welding Machine Hall Sensor Manufacturer - [Wekeway]

There are two commonly used methods for current sensing: low-voltage side sensing and high-voltage side sensing. Low voltage side induction willHall sensor for welding machineConnect between the original load and the ground connection. This type of sensing provides an inexpensive method for measuring current, but has a drawback of adding additional resistance to the grounding path of the circuit. On the other hand, the high-voltage side induction connects the sensor between the power supply and the load. It usually requires a more expensive sensor-As a higher level of accuracy is necessary-But it will not damage the grounding current like current sensing through the low side connection.

Our company produces various series电焊机霍尔传感器Composed of a current switch and a current sensor. These sensors come with optional embedded relays that can be used to activate external contactors. They can induce external currents (up to) through solid-state or split type current sensing loopsone hundred and fiftyAmpere).

The model has a fixed or adjustable current sensing trigger point or voltage output. Externally visibleLEDIndicate the status of the relay coil and current sensor trigger. Provided on certain models (closed)-open-The automatic override switch is a true override switch located on the load side of the relay.

In electronic or electrical engineering, current is a crucial factor. In electronics, the bandwidth of current varies from a few milliamps to several hundred amperes. In the electrical field, this range can be wider, typically reaching several thousand amperes, especially in the power grid. There are various methods for sensing and measuring the internal current of circuits or conductors. In this article, we will discuss the advantages and disadvantages of using various current sensing technologies to measure currentPoints and applications. 罗氏线圈有着广泛的应用。例如，测量大功率模块中的电流，特别是跨MOSFET或大功率晶体管或跨IGBT的电流。罗氏线圈提供灵活的测量选择。由于Rogowski线圈对暂态或高频正弦波的响应非常快，因此它是测量电力线高频电流暂态的一个很好的选择。在配电或智能电网中，罗氏线圈为电流测量提供了极好的灵活性。

Advantages:

Can be used for higher frequencies;Accurately used for both AC and DC;Based on non-contact methods;Can be used in harsh environments;It is reliable.

inferiority：

Sensor drift requires compensation,Additional circuits require useful outputs,More expensive than diversion technology.