TB-240813-V-201 Basic Electrical Machines

TB-240813-V-201 Basic Electrical Machines

Technical Parameter:

Electrical Base Unit

An integrated test platfomm to set up and test motor operation. To include: integralpower supply, mounting base, instrumentation and safety protection. The powersupply shalt provide a minimum of:

Single phase variable AC: 0-140 VAC @ 8 AMPS

Variable DC: 0-120 VDC @ 8 AMPS@

3-Phase Fixed 208 VAC: L1,L2,L3,N, Earth connections

DC field suppiy adjustable: 0-0.5 AMPS

The safety protection shall include:

Fused variable DC

Fused variable DC field

3-Phase circuit breaker

Ground fault interrupter

Emergency stop push button with key lockout

The mounting base shall be designed to mount (2) industrial quality motors of at least 0.44KW power rating.itshall also permit mounting ofapronybrake andincludes:

(1)Convenience Outlet

(1)5-Wire 3-Phase power cord

(2)Integral motor connectors

(2) Arrays of 8 binding posts for motor interconnections

(1)Fused test lead with banana plug

(1)Coupling spider

(1) Coupling guard

(10)Knurled finger nuts

(1) Motor mounting pad

Phototachometer

Shall consist of an industrial grade photo tachometer: hand-held unit, LED display.record button, memory button.Speed range 1-10000 rpm

Prony Brake

A shaft torque measurement and load device. lt shall consist of a fommed steel gageunit, Aluminum brake drum with mounting for 5/8-inch motor shafts, balanced pulley, spring force gauge, load adjustment knob, double set screw locking device, coolantspray bottle. Load range shall be 0-3.05 N-m

Patch Cord Kit

15 stackable banana jack types:(10)12in/30.5cm and (5)24in/61cm

Handheld Analog Multimeter

Clamp-on type with analog scale, voltage range of 0-600 VAC, current range of 0 -300 AC Amps.

Handheld Digital Multimeter

Voltage range of 0-600 VAC & VDC, current range of0 – 10 AC & DC Amps, OhmicRange to 20 Megohms, Diode Check, Battery check

AC Multipurpose Single Phase Motor

A 1/3 HP, NEMA 56 Frame machine rated at 115VAC/60Hz,1725 RPM. Start andrun windings accessible through a multi-pin connector. Shall be configurable tocapacitor start,pemanent capacitor, and capacitor start/capacitor run typemotors. To include:

Single end shaft for safetyD

Special shaft end to accommodate tachometer

Complete with coupling and legend plate

Split Phase Motor。

Split Phase Motor

A 1/3 HP, NEMA 56 Frame machine rated at 115VAC/60Hz, 1725 RPM. All windingswill be accessible through a multi-pin connector. To include:

Single end shaft for safety

Special shaft end to accommodate tachometer。

Complete with coupling and legend plate

DC Motor’generator

A 1/3 HP, NEMA 56 Frame machine rated at 1750 RPM, configurable to serieswound, shunt wound, compound wound motor or generator. To include:

Single end shaft for safety。

Special shaft end to accommodate tachometer

Complete with coupling and legend plateC

3 Phase induction Motor

A 1/3 HP, NEMA 56 Frame machine rated at 208 Volts, 3PH. Windings accessiblethrough a multi-pin connector. To include:

Single end shaft for safety。

Special shaft end to accommodate tachometer

Complete with coupling and legend plate

Student Curriculum

The student curriculum shall consist of (1) set of modules with 60 skills in electricmotors. The topics covered shall include connection, reversing, operation,applications, selections, perormance measurement, and performance analysisof: DC motors, split-phase AC motors, cap-start AC motors, pemmanent capacitor AC motors,2-capacitor AC motors,and 3-phase AC motors.

The student curriculum shall be designed in a skill-based format that focuses onteaching industry-relevant tasks. The objectives shall be accomplished by organizingthe learning material into a series of learning activity packets, which are furthersubdivided into three or more segments per packet. Alf learning material needed shallbe contained in the packets incuding text material, laboratory equipment activities.and multimedia directions. No extemal text sources shall be required. The specificcognitive skills taught by each text passage shall be identified next to thepassage. Each lab activity shall be identified by the industrial task taught. Allactivities shall be highly detailed with step-by-step instructions to facilitate a self-directed learning environment. A combination of step-by-step enabling activities andcreative, problem-solving activities shall be provided. A self-review of five to tenquestions shall be provided after each segment. The curiculum must be capable ofboth self-directed and instructor directed study. Al activities must correlate directly to the hardware supplied, with detailed illustrations and diagrams.

Teacher’s Assessment Portfolio GuidesA teacher’s guide shall be provided, it shall contain student data sheets, data sheetsolutions,self-review answers, quizzes, quiz answers,student skill record sheetsand authentic assessment, A quiz shall be provided for each packet. A question shallbe provided in each quiz for each cognitive objective taught. All tasks listed in thepacket shall be listed on personalized student record sheets. The Instructor’sPackage shall include directions for authentic skill assessment.

Required Topics/Lessons:

1. DC Series Motors

Introduction to Electric Motors

Electric Motor Safety

DC Series Motor OperationReversing a DC Series Motor

2. DC Shunt And Compound Motors

Self-Excited DC Shunt Motor Operation

Separately-Excited DC Shunt Motor Operation

DC Compound Motor Operation

3. Motor Speed and Torque

Motor Speed Measurement

Motor Torque and Speed Calculations

Motor Torque Measurement

4.Motor Perfonnance

Motor Power and Efficiency

DC Motor Performance Testing

DC Motor Performance Analysis

5.Split-Phase AC Motors

Characteristics of Alternating Current

Split-Phase Motor Operation

Split-Phase Motor Characteristics

6.Capacitor-Start AC Motors

Power in AC Circuits

Power Factor

Capacitor-Start Motor Operation

Capacitor-Start Motor Characteristics

Bleeder Resistor Application

7.Permanent-Capacitor and Two-Capacitor Motors

Permanent-Capacitor Motor Operation

Permanent-Capacitor Motor Characteristics

Two-Capacitor Motor Operation

Two-Capacitor Motor Characteristics

8. Three-Phase AC Induction Motors

Three-Phase Induction Motor Operation

Three-Phase Motor Characteristics

Three-Phase Motor Configurations

Reversing A Three-Phase Induction Motor

9.Troubleshooting DC Motors

DC Motor Failures

DC Electric Motor Arature

TestingTesting DC Motor Field Winding Failures

Troubleshooting DC

10. Troubleshooting AC Motors

AC Motor Failures

Testing Single-Phase AC Motors

Testing Three-Phase AC Motors

Troubleshooting AC Motors

General parameter:

Dimension: The equipment when installed should not consume more than 6 sqm space andnot over 2m for the overall height.

This includes curriculum and instruction to exercises in print and digital format

Accessories:

(1) Allen Wrench Set

(1)Dead Blow Hammer