Intermediate
4 lessons
135 min
Industrial Electricity
See how industrial power is distributed, how contactors and overload protection control motors, how protective devices are coordinated, and how a lockout-tagout routine prevents injury.
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What you will learn
- Calculate three-phase current from apparent power and line voltage
- Explain the role of a contactor, overload relay and control circuit
- Describe the principle of protective coordination and discrimination
- Apply a lockout-tagout sequence before working on industrial equipment
Prerequisites. AC fundamentals and three-phase power · Series and parallel circuits · Awareness of local electrical safety rules
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Course lessons
1
Industrial Power Distribution
From the supply transformer to the distribution board: three-phase ratings, current per phase and the informat...
35 min →
2
Motor Control and Contactors
Direct-on-line starting, contactor control circuits, overload protection and the alternatives for larger or mo...
35 min →
3
Protective Devices and Coordination
Fuses, circuit breakers, residual-current devices and the logic of coordination between the load, the protecti...
35 min →
4
Industrial Safety and Lockout-Tagout
Arc and shock hazards, stored energy, the lockout-tagout sequence and the discipline of proving an installatio...
30 min →