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How do you ctmm motor protection relay setting?

Updated: 4/28/2022

Wiki User

∙ 10y ago

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Just calculate from motorplate: Watts/(Square3*V*cosP)=> example motorplate says: 4.7Kw 440V cosP: 0.82 4700W/(square3*440V*0.82) here you get minimum setting for motor, this case 7.5A

JT

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∙ 10y ago

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