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AL-E378 THREE PHASE SQUIRREL CAGE INDUCTION MOTOR (CUT SECTION MOTOR)

Project Information

  • Category: ELECTRICAL ENGINEERING
  • Sub Category: CUT SECTION MOTORS
  • Model Number: AL-E378

Description

AL-E378 THREE PHASE SQUIRREL CAGE INDUCTION MOTOR

(CUT SECTION MOTOR)

Three-Phase Squirrel Cage Induction Motor (Cut Motor)

Model No: AL-E378  

Detailed Technical Specifications

-----------------------------------------------------------------------------------------------------------------------------------------------------------------Product Code: AL-E378 Product Name: Three-Phase Squirrel Cage Induction Motor (Cut Motor) Application: Electrical Machines Laboratory, Electrical Engineering Training, and Demonstration of Induction Motor Construction and Working Principles.

1. Technical Specifications

S. No.

Parameter

Specification

1

Type of Machine

Three-Phase AC Squirrel Cage Induction Motor

2

Model Number

AL-E378

3

Rated Power

1 HP (0.75 kW)

4

Operating Voltage

415 V AC, three-phase

5

Rated Speed

1440 RPM

6

Rotor Type

Squirrel Cage Rotor

7

Motor Frame Size

132

8

Mounting Arrangement

B3 – Foot-Mounted

9

Shaft Arrangement

Single Shaft

10

Terminal Connections

6 BTI 15 terminals, as specified

11

Motor Construction

Cutaway section for internal component visibility

12

Stator

Laminated steel core with three-phase windings

13

Rotor

Squirrel cage construction with rotor bars and end rings

14

Yoke

Solid yoke extension

15

Enclosure / Protection Designation

SPDP, as specified

16

Protection Rating

IP23, subject to manufacturer confirmation

17

Cooling / Construction Code

IC01, as specified

18

Mounting Base

Rigid metal base

19

Educational Use

Study of motor construction, components, and operating principles

2. Constructional Features

  • Stator assembly: Provides the stationary magnetic circuit and accommodates the three-phase stator windings.
  • Squirrel cage rotor: Demonstrates the rotor bars and end-ring arrangement used to produce torque through electromagnetic induction.
  • Cutaway construction: Selected sections of the motor housing are opened or removed to expose internal components for educational observation.
  • Single shaft: Allows observation of the motor shaft and its mechanical output arrangement.
  • Solid yoke extension: Provides the specified extended structural support.
  • Metal mounting base: Supports the motor securely during laboratory demonstrations.
  • Terminal arrangement: Six specified terminals facilitate the demonstration of winding connections, subject to the actual terminal configuration.

3. Experiments and Learning Objectives

The AL-E378 cut motor can be used to demonstrate:

  1. Study of the construction of a three-phase squirrel cage induction motor.
  2. Identification of stator, rotor, shaft, frame, and bearing assemblies.
  3. Study of the squirrel cage rotor and rotor end rings.
  4. Understanding the principle of electromagnetic induction in rotating machines.
  5. Study of the rotating magnetic field produced by three-phase stator windings.
  6. Understanding the relationship between synchronous speed, rotor speed, and slip.
  7. Study of motor terminal arrangements and winding connections.
  8. Observation of the mechanical construction and mounting arrangement of an induction motor.

4. Operating Principle

When a three-phase AC supply is applied to the stator windings, a rotating magnetic field is produced. This field induces current in the squirrel cage rotor conductors. The interaction between the rotor current and the rotating magnetic field generates torque, causing the rotor shaft to rotate.

For a 50 Hz supply, the synchronous speed is:

 

5. General Requirements

  • Suitable for electrical machines laboratories and engineering training institutions.
  • Robust construction suitable for repeated educational demonstrations.
  • Internal components clearly visible through the cutaway sections.
  • Secure mounting on a rigid metal base.
  • Terminal identification suitable for instructional use.
  • Operation and connection to be carried out under qualified supervision using appropriate electrical protection.

Important specification note:

The supplied designations “SPDP,” “1P23,” and “1C01” have been retained or interpreted as written. Please verify whether these refer to SPDP enclosure construction, IP23 protection, and IC01 cooling respectively before issuing a formal tender. The exact meaning of “6 BTI 15 terminals” should also be confirmed against the manufacturer's drawing or nameplate.

Technical Details