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Common Mode Choke, also known as common mode inductor, is wound symmetrically on a closed magnetic ring with the same turns in opposite directions. It is often used to filter common-mode electromagnetic interference, suppress the electromagnetic wave produced by high-speed signal lines to emit radiation, and improve the EMC of the system. In practical application, common mode inductance is generally added to the differential signal line.

A Rogowski coil, also known as a current measuring coil or differential current sensor, is a circular coil uniformly wound around a non-ferromagnetic material. The output signal is the derivative of the current with respect to time.

Toroildal inductors have the following functions: 1. Play a filtering role in AC circuit; 2. Can also play a vibration effect; 3. Dc circuit can play the role of frequency conversion; 4. It can also play the role of coupling and coupling.

Toroidal inductor (inductor coil) is an electromagnetic induction component wound with insulated wire, and is one of the commonly used components in electronic circuits.

What are the similarities and differences of voltage and current transformers? The current transformer is called CT and the voltage transformer is called PT. What they have in common is that they work on the principle of electromagnetic induction, which is used to monitor the electrical circuit: the current of the electrical circuit is monitored through CT, which is the current source of secondary instrument and protection

​The ring indicates the number of primary and secondary windings of the voltage transformer. One primary winding is removed, and the rest are all secondary windings.

communication technology, sensor technology, electronic control technology, and computer technology to the entire transportation management system, thereby establishing a large -scale and comprehensive role, real -time in real time, in real time , Accurate and efficient comprehensive transportation and management system.

Tongue spring relay: a relay that opens, closes or converts the line with tongue spring action that is sealed in the tube and has the dual role of electric shock reed and arbit magnetic circuit

A relay is an electrical control device. It has a control system (also known as input loop) and a quilt The interaction between control systems (also known as output loops). Usually applied to the control of automation