Jul 22, 2024  
College Catalog 2022-2023 
College Catalog 2022-2023 [ARCHIVED CATALOG]

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ELEC 2370 - Electrical-Polyphase Alternating Current Fundamentals, Electrical Instruments & Illumination

Credit Hours: 2.00

Prerequisites: ELEC 1141  or related work experience

(formerly ATEE 2360)

ELEC 2370 covers three and four-wire two-phase circuits, three-phase induction, star and delta circuits, power, balanced and unbalanced loads, transformer principles, characteristics and connection, electrical instruments, self- synchronous systems, protective relays, lamps and illumination.

Billable Contact Hours: 2

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Transfer Possibilities
Michigan Transfer Network (MiTransfer) - Utilize this website to easily search how your credits transfer to colleges and universities.
Outcome 1: Upon completion of this course, the student will be able to differentiate between a WYE and a delta system.


  1. Lay out a vector diagram of voltages in a three phase WYE circuit.
  2. Plot a vector diagram of voltages in a three-phase delta circuit.
  3. Apply the law of cosines to calculate the line current in a three-phase system.
  4. Calculate the power, the true power, and the total power in three phase systems.

Outcome 2: Upon completion of this course, the student will be able to define the operation of a transformer.


  1. Define step down transformer, step up transformer, transformer efficiency, exciting current, ampere-turns, and primary winding to secondary winding voltage and current ratios.
  2. Explain feedback from one secondary winding to the other primary winding and state the steps that must be taken to minimize this hazard.
  3. List the information provided on the nameplate of a transformer.

• Communication: The graduate can communicate effectively for the intended purpose and audience.
• Critical Thinking: The graduate can make informed decisions after analyzing information or evidence related to the issue.
• Global Literacy: The graduate can analyze human behavior or experiences through cultural, social, political, or economic perspectives.
• Information Literacy: The graduate can responsibly use information gathered from a variety of formats in order to complete a task.
• Quantitative Reasoning: The graduate can apply quantitative methods or evidence to solve problems or make judgments.
• Scientific Literacy: The graduate can produce or interpret scientific information presented in a variety of formats.

CDO marked YES apply to this course:
Information Literacy: YES
Quantitative Reasoning: YES
Scientific Literacy: YES


  1. Review - Alternating Currents
  2. Review - Inductive and Capacitive Reactances
  3. Three-Phase voltages, phase sequence, the WYE connection
  4. The Delta Connection
  5. Power Measurement in Three-Phase Systems
  6. Voltmeter, Ammeter, Wattmeter, Varmeter, Power Factor Meter
  7. Syncroscope, Frequency Meters, Recording Instruments, Watt-Hour Meter
  8. Transformer Primary and Secondary Ratios, Losses and Efficiency, Polarity
  9. Multiple Tapped Winding, Transformer Cooling, Transformer Oil, Taps, Frequency, Volts, Impedance, Data
  10. Delta Connection, WYE Connection, Delta-WYE Connection
  11. WYE-Delta Connection, Open-Delta, Three-Phase Transformer
  12. Instrument Transformers, Auto Transformers
  13. Constant Current Transformers, Induction Voltage Regulators

Primary Faculty
Dulinski, Kenneth
Secondary Faculty
Seger, Jennifer
Associate Dean
Thero, Laura
Hutchison, Donald

Official Course Syllabus - Macomb Community College, 14500 E 12 Mile Road, Warren, MI 48088

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