Used for JOSEF overcurrent relay XJL-51 AC220V in large mines

Description :

　　Overcurrent relay XJL-51 AC220V

　　Overcurrent relay is an automatic protection device used in power systems to detect circuit overcurrent. When the current in the circuit exceeds the set value, the overcurrent relay will trigger action, cut off the circuit or issue an alarm, thereby protecting the circuit and equipment from damage.

　　The main types of overcurrent relays include induction electromagnetic and integrated circuit types. They usually have the characteristics of definite time and inverse time to adapt to the protection requirements of different circuits. The timed overcurrent relay will wait for a period of time before operating when the current exceeds the set value to ensure that brief overcurrent does not trigger false operation. The inverse time overcurrent relay will act faster as the current increases to provide faster protection response.

　　In practical applications, overcurrent relays are widely used for the protection of main equipment such as motors, transformers, and power transmission and distribution systems. They can be used in conjunction with other electrical components to build a comprehensive protection system, ensuring the safe and stable operation of the power system.

　　In addition, modern overcurrent relays usually have multiple protection functions, such as single-phase current measurement, control function, inverse time overcurrent protection, short delay protection, transient current transformer ratio overcurrent protection, overload alarm, area interlock, etc. These functions make overcurrent relays more comprehensive and reliable in protecting circuits and equipment.

• Overcurrent relay