IRKL26/06A

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IRKL26/06A application field and working principle

Thyristors - SCRs - Modules

Thyristors are semiconductor switches consisting of three or more layers of semiconductor material that can switch high currents and voltage in response to an input signal and are designed with a ‘gate’ in the component to control it. These are known as Silicon Controlled Rectifiers (SCRs).

The IRKL26/06A is an SCR module specifically designed for traction control applications. It is a low power device that supports a current of 26 Amps and a maximum gate trigger current of 6 Amps. It is designed to be used in applications such as railway motors, electric drives, power supply and energy saving. In these applications, it can be used as a motor starter, dynamic braking, rectifier, soft starter and as a short-circuit protection.

The main working principle behind SCR modules is that, when an electric current passes through the gate, it switches on and conducts current between the anode and cathode. As current passes through the module, it heats up and starts to dissipate heat for a longer period of time. This time is known as the holding time of the SCR, during which, the module will remain in the "on" state.

The module has several other features such as reverse blocking capability, temperature robustness and soft turn-on that makes it highly reliable. The reverse blocking works by preventing reverse current from flowing through the circuit after the switch is turned off, and the temperature robustness helps the module working for higher temperature applications without any failure. Furthermore, the SCR module also has an over-voltage protection. This feature helps the device to remain in the ‘off’ state till the voltage exceeds a predetermined level.

Apart from traction applications, the IRKL26/06A can also be used in several other applications such as lighting systems and power factor correction. In lighting systems, it can be used as a dimmer part to regulate the power supply while in power factor correction, it can be used to improve the efficiency of the power supply. By regulating the current, this module will help to reduce power losses throughout the system.

Overall, the IRKL26/06A is an effective and reliable SCR module that can be used for several traction and power control applications. As compared to other SCR modules, it offers high reliability, low power requirements and simpler design making it an ideal choice for use in many industrial applications.

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