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)
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:
- Study of the construction of a three-phase
squirrel cage induction motor.
- Identification of stator, rotor, shaft, frame,
and bearing assemblies.
- Study of the squirrel cage rotor and rotor end
rings.
- Understanding the principle of electromagnetic
induction in rotating machines.
- Study of the rotating magnetic field produced by
three-phase stator windings.
- Understanding the relationship between
synchronous speed, rotor speed, and slip.
- Study of motor terminal arrangements and winding
connections.
- 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.