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[DOC File]2031 Demonstrate knowledge of three-phase theory
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2.6 State a typical application for each type of motor and give reasons for the suitability of the choice. 2.7 Identify types of motor enclosures and state the features of each. Outcome 3. Apply knowledge of single-phase motors. Evidence requirements. 3.1 Test motor to ensure safe operation. Range visual, earth continuity, insulation resistance.
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[DOC File]EffTool User's Manual - ABB
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Energy Savings Calculator for AC Motor and Drive Replacements. Version 1.0. 3AFE 64516302 REV B Effective: 25.3.2002 ... The electric power taken by a three-phase motor is given by the following equation. ... I the nominal current, and cos ( the power factor of the motor. These values are stamped into the rating plate of the motor.
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[DOCX File]Full Submittal - ABB
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All ACQ580 drives are current rated devices. The HP ratings provided are for reference only and are based on typical 4-pole motors at nominal voltages (NEC Table 430.250). If full motor torque is required, ensure the drive has a continuous current rating equal to, or greater than the full load amp rating of the motor.
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[DOC File]Electric Motor Repair Mechanic
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• Connect three single-phase transformers for three-phase operation. • Calculate line current (if phase current is known) in delta-connected transformers. • Explain the operating principles of an auto transformer. 086012 Alternators. Objectives: • Explain how single- and three-phase alternators operate.
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[DOC File]18091 Demonstrate knowledge of three-phase theory for ...
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Outcome 3. Demonstrate knowledge of neutral current in three-phase loads. Evidence requirements. 3.1 The effects of balanced and unbalanced loads on the neutral current are explained in terms of the sum of the three-phase currents. 3.2 The need for a neutral conductor on an unbalanced star connected load is explained. Planned review date 31 ...
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[DOC File]Air Flow, Air Systems, Pressure, and Fan Performance
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For example, to calculate BHP from motor amp draw, use the following formula: 1 phase motors 3 phase motors. BHP = V * I * E * PF BHP = V * I * E * PF * 1.73. 746 746. where: BHP = Brake Horsepower V = Line Voltage I = Line Current E = Motor Efficiency (Usually about .85 to .9) PF = Motor Power Factor (Usually about .9)
3 phase motor power calculation

3 phase motor current calculator