Three phase induction motor connection with MCCB, contactor and OLR When connecting a three-phase induction motor, commonly used components include a Molded Case Circuit Breaker (MCCB), a contactor, and an Overload Relay (OLR). The overload relay is typically connected in series with one or more phases of the motor. It monitors the motor's current and protects it from overheating due to excessive current draw. The overload relay is usually adjustable, allowing the user to set the desired current

Automatically switch between normal power and standby power by one contactor A four-pole AC contactor can achieve dual power switching. When the AC contactor is working, the two sets of normally open contacts are closed and the normal power supply is supplied. When the AC contactor loses power, the two sets of normally closed contacts are reset and the standby power supply is supplied. . . . . . . . #powersupply #power #powerelectronics #powerengineering #powerforlife #electricalengineering #ele

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In the previous video, you learned about what Modbus communication protocol is and the types of Modbus communication used in the industry. Now, as promised, in this video you are going to learn about How Modbus communication protocol works between devices. Each Modbus message has the same structure. Four basic elements are present in each message. The sequence and order of these elements are the same for all messages. This allows for easy parsing of the content of the Modbus message. Check out t