Traditional Culture Encyclopedia - Hotel reservation - Happy New Year! I would like to ask you some questions, how to set the setting current of the thermal relay. Our hotel has an 18.5 kilowatt water pump. What is the setting current that should be set
Happy New Year! I would like to ask you some questions, how to set the setting current of the thermal relay. Our hotel has an 18.5 kilowatt water pump. What is the setting current that should be set
Hello:——★According to convention, the setting current of the thermal relay should be set to 1.2 times the rated current of the motor. You can check the rated current value of the water pump motor to set it. Supplementary question: The protection mechanism of the thermal relay is: when current passes through the thermal relay, the heat generated causes the bimetal to bend, triggering the opening (tripping) mechanism to achieve the purpose of power-off protection. When the thermal relay's tripping mechanism and bimetallic sheet are deformed, the protection current value will deviate, leading to the situation you mentioned that "the actual current is larger than the set current... and the water pump can work normally." Phenomenon. ——It is recommended to replace the thermal relay with a new one.
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