WTT 245 - Electrical Practical App

Credits: 4
Lecture Hours: 2
Lab Hours: 4
Practicum Hours: 0
Work Experience: 0
Course Type: Voc/Tech

This course will provide students with practical wiring exercises involving installation, wiring and troubleshooting of electrical devices and equipment used in, but not specific to, wind turbine control systems. Students will study electrical diagrams, design of electrical systems and electrical safety.
Prerequisite: ELT 303, ELT 131
Prerequisite OR Corequisite: ELT 123
Competencies
Discuss safe working conditions with electrical systems

Understand OSHA lock out-tag out policy/procedure
Understand proper use of personal protective equipment
Discuss the effect of electrical current on the body
Discuss practicality of the one hand rule

.2. Understand electrical drawings

Explain how to read and interpret electrical symbols on an electrical drawing
Identify the electrical installation requirements using plans to a commercial building
Identify the electrical installation requirements using plans to a wind turbine

3. Focus on calculating the electrical load

Determine the minimum equipment loading
Figure the unbalanced load

4. Examine branch circuits

Determine the required number of branch circuits for a set of loads.
Determine the correct rating for branch circuit protective devices
Determine the preferred type of wire for a branch circuit
Determine the required minimum size conductor for a branch

5. Describe the function of an Encoder

Identify parts on an encoder
Determine significance of all encoder terminals
Identify output signals and voltages
Determine correct voltages on connector pins
Discuss risks of injury due to rotating shafts and electroshock charge
Discuss safety risks due to mechanical shock and overload
Troubleshoot all problems associated with encoder fault

6. PLC Troubleshooting

Understand input and output devices. How they function.
Identify PNP and NPN
List input devices prox. Sensors, limit switches, photo eyes
Test voltages in and out of a plc card (input card, output card)
Understand safety concerns when forcing an output on.

7. Installation and operation of low-voltage remote control

List the components of a low-voltage remote control wiring system
Select the appropriate NEC section governing low voltage installation wiring method
Demonstrate the correct connections for wiring a low-voltage remote control system