What is the mechanism of action of transformer in leakage protector?
Publish Time: 2024-12-23
Transformer, as one of the core components of leakage protector, plays a vital role. In the power system, leakage protector is a key device to ensure the safety of electricity use. It can quickly detect leakage in the circuit and take corresponding protective measures to effectively prevent electric shock accidents and electrical fires. Transformer is the key technical basis for realizing this function.
The mechanism of action of transformer in leakage protector is mainly based on the principle of electromagnetic induction. When electrical equipment or lines leak electricity, part of the current will flow into the earth through the human body or other conductors, causing the current balance in the circuit to be destroyed. At this time, transformer can keenly capture this current change.
Specifically, transformer is usually composed of two mutually insulated coils wound on the same iron core, one of which is connected to the line of the power grid, called the primary coil; the other coil is connected to the tripper in the leakage protector, called the secondary coil. When the circuit is working normally, the current in the primary coil is balanced with the induced current in the secondary coil, and the switch device of the leakage protector is in a closed state.
However, once leakage occurs in the circuit, the current in the primary coil will change, and this change will immediately induce a corresponding current in the secondary coil. When this induced current reaches the action threshold set by the leakage protector, the protector will act quickly and cut off the power supply through the tripper, thereby preventing the leakage current from continuing to pass through the human body or other conductors and causing harm.
The high sensitivity and accuracy of the transformer enable the leakage protector to detect leakage in a very short time and respond quickly. This not only greatly improves the level of electricity safety, but also provides users with more reliable and stable power protection.
In summary, the transformer plays a vital role in the leakage protector. It uses the principle of electromagnetic induction to achieve real-time monitoring and protection of leakage in the circuit, providing a solid guarantee for the safe operation of the power system.
