Transformer Bank Workshop
Power Fundamentals Reviewed

Audience:		Electrical distribution line working personnel, customer service personnel, and all other personnel who require a basic understanding of three-phase electrical power
Average Training Time:		60 to 120 minutes NOTE
Format/ Product Code:		CD-ROM (MPEG Video)/ TBPFRMPG
Content Producer:		Mastery Technologies, Inc.

OVERVIEW
This course is the first course in the “Transformer Bank Workshop” series. All the the courses in this series use full-screen, full-motion video.
This highly interactive course uses clear and concise presentations and sixty-two interactions to ensure your workers have mastered the basic concepts of three-phase power—the prerequisites for the remaining courses in the “Transformer Bank Workshop” series.
Vivid 3D animations help clarify sometimes difficult concepts.
Your workers will review basic electrical measurements, Ohm’s law, power transformation, load, magnetic fields, generation , the sine wave, and power phases.
Your workers can “test out” of a lesson and skip it by passing the pre-test at the beginning of each lesson.
This course was produced in collaboration with Otter Tail Power Company and Gordon Solee, PE. The program is based on Mr. Solee’s popular and respected “Transformer Hands-On Workshop”.

TOPICS
The course presents interactive instruction covering the following topical areas:

Measurements

• Voltage
• Current
• Resistance
• Power
• Ohm's Law
• Calculation Chart: E=IxR
• Calculation Chart: P=ExI
• Kilowatt (kW)
• Kilowatt-hour (kWH)
• Kilovolt-ampere (kVA)
• Megawatt

Transformation

• Voltage Transformation
• Series and Parallel
• Transformation vs.Voltage Drop

Generation

• Magnetic Fields
• Generation - Cutting Lines of Force
• Generation - Loop-type alternator
• The Sine Wave

Phases

• Single-Phase Power
• Two-Phase Power
• Three-Phase Power
• Three-Phase Connections

PERFORMANCE OBJECTIVES
This course will measure mastery on each of the following performance objectives. Upon completion, workers will be able to...

Explain electricity using the water analogy

1. Relate voltage to water pressure.
2. Relate current to water flow.
3. Relate resistance to corrosion in pipes.
4. Define parallel using transformer, coils and capacitor examples.

Apply Ohm’s Law

1. Define power in terms of voltage and current.
2. Define voltage in terms of resistance and current.

Use electrical terms properly

1. Define kW.
2. Define kWh.
3. Define kVA.
4. Define MW (megawatt).

Explain voltage transformation

1. Describe how electricity is transformed.
2. Define series using transformer, coils and capacitor example.
3. Define parallel using transformer, coils, and capacitor.

Compare transformation, load, and voltage drop

1. Distinguish between electricity transformation and the effect load has on current.
2. Compare the resistance of a small and large conductor.
3. Recognize that under-sized conductor causes voltage drop.

Explain how A/C power is generated

1. Recognized existence of magnetic lines of force around conductors carrying curent.
2. Describe how a current is induced on a conductor by magnetic lines of force.

Explain the sine wave for A/C electricity

1. Identify the maximum positive point of a sine wave.
2. Identify the maximum negative point of a sine wave.
3. Identify the effective voltage point on a voltage sine wave.
4. Identify the average voltage point on a voltage sine wave.
5. State that one cycle of a sine wave represents 360 electrical degrees.
6. State that one cycle of a sine wave represents 1/60 second.

Compare three-phase power to a three-cylinder engine

1. State that three-phase power is spaced at 120 degree intervals.
2. State that three-phase power can generally be compared to a three-cylinder engine.

Relate three-phase power to three single-phase alternators

1. State that three-phase power is actually three single-phases separated by 120 degrees.

Recognize a delta connection consists of three phases

1. Label the corners of a delta according to their phase designations.

Recognize conventional wye has three-phases and neutral

1. Label the phases of a wye according to their phase designations.
2. Label the neutral position of a wye.

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