AL-358N 3-PHASE TRANSFORMER TRAINING SYSTEM
Project Information
- Category: ELECTRICAL ENGINEERING
- Sub Category: ELECTRICAL ENGINEERING
- Model Number: AL-358N
Description
AL-358N 3-PHASE TRANSFORMER TRAINING SYSTEM
Model: AL-E358N
Educational Transformer Training System
Rating: 440 / 230 V AC | 3-Phase | 4–5 kVA | 50 Hz
Product Overview
The Three-Phase Transformer Training System is a
comprehensive educational training unit designed for practical study of
three-phase transformer operation, characteristics, connections and electrical
measurements.
The system enables students to perform no-load, short-circuit
and load tests, study Star (Y) and Delta (Δ) winding configurations,
measure electrical parameters and determine three-phase power using the two-wattmeter
method.
The system incorporates a variable-voltage autotransformer
arrangement for controlled variation of the primary voltage and provides
clearly identified terminals and test points for safe and convenient practical
experimentation.
Key Features
- Three-phase
transformer rated 4–5 kVA
- Primary
voltage: 440 V AC
- Secondary
voltage: 230 V AC
- Frequency:
50 Hz
- Variable
primary voltage through autotransformer
- Separate
accessible transformer winding terminals
- Star
and Delta connection facilities
- No-load,
short-circuit and load-test capability
- Voltage
and current measurement facilities
- Three-phase
power measurement using two-wattmeter method
- Suitable
electrical protection and emergency-stop arrangement
- Clearly
marked terminals and test points
- Robust
industrial/educational construction
- Supplied
with teaching manual and practical exercises
Technical Specifications
|
Parameter |
Specification |
|
Equipment |
Three-Phase
Transformer Training System |
|
Transformer
Type |
Three-phase
educational transformer |
|
Rated
Capacity |
4–5 kVA |
|
Primary
Voltage |
440 V AC, 3-Phase |
|
Secondary
Voltage |
230 V AC, 3-Phase |
|
Frequency |
50 Hz |
|
Variable
Voltage |
Variable
primary voltage using autotransformer |
|
Primary
Connection |
Star
/ Delta |
|
Secondary
Connection |
Star
/ Delta |
|
Experiments |
No-load,
short-circuit and load tests |
|
Measurements |
Voltage,
current, power and power factor |
|
Power
Measurement |
Two-wattmeter
method |
|
Protection |
Overcurrent,
short-circuit and emergency protection |
|
Terminals |
Clearly
identified safety/test terminals |
|
Construction |
Industrial-grade
educational training system |
|
Documentation |
Teaching
manual, experiment manual and connection diagrams |
Educational Experiments
1. Study of Transformer at No Load
Students can determine and study:
- Primary
voltage
- Secondary
voltage
- No-load
current
- Input
power
- Transformation
ratio
- No-load
losses
- Power
factor
2. Short-Circuit Test
The system permits controlled short-circuit testing for studying:
- Short-circuit
voltage
- Short-circuit
current
- Input
power
- Copper
losses
- Equivalent
impedance
- Transformer
parameters
3. Load Test
The transformer can be connected to a suitable three-phase load to
study:
- Primary
and secondary current
- Input
and output voltage
- Load
power
- Power
factor
- Voltage
regulation
- Transformer
losses
- Efficiency
4. Star / Delta Connections
The accessible winding terminals allow students to construct and
study applicable:
- Star–Star
(Y–Y)
- Delta–Delta
(Δ–Δ)
- Star–Delta
(Y–Δ)
- Delta–Star
(Δ–Y)
connections according to the transformer configuration and
manufacturer's permitted connections.
5. Two-Wattmeter Method
The system provides suitable connection facilities for measurement
of three-phase active power using two wattmeters.
Students can study:
- Wattmeter
readings
- Total
three-phase power
- Power
factor
- Relationship
between wattmeter readings and load conditions
Variable Voltage Arrangement
A variable-voltage autotransformer is provided for controlled
variation of the transformer primary voltage.
The arrangement includes:
- Smooth
voltage adjustment
- Voltage
indication
- Clearly
marked input/output terminals
- Appropriate
protection
- Safe
connection facilities
The supplier shall state the exact adjustment range and rating of
the offered autotransformer.
Measurement & Connection Panel
The front panel shall provide clearly identified sections for:
3-Phase Input → Variable Voltage → Measurement → Transformer
Connections → Protection → Load/Test Points
The panel shall include suitable terminals for:
- L1,
L2, L3 and Neutral, where applicable
- Primary
transformer terminals
- Secondary
transformer terminals
- Star
connection
- Delta
connection
- Voltage
measurement
- Current
measurement
- Wattmeter
connections
- Load
connections
- Protective
earth
Protection & Safety
The training system shall incorporate appropriate safety
provisions, including:
- Input
MCB/fuse protection
- Output
protection
- Short-circuit
protection
- Overcurrent
protection
- Emergency-stop
facility
- Protective
earthing
- Insulated
safety terminals
- Clearly
marked warning labels
- Safe
connection and measurement points
Recommended Accessories
The complete system shall include, as applicable:
- Three-phase
transformer
- Variable-voltage
autotransformer
- Digital
voltmeters
- Digital
ammeters
- Power
measurement facility
- Two-wattmeter
arrangement
- Three-phase
load
- Protection
devices
- Emergency-stop
switch
- Safety
connection leads
- Earthing
arrangement
- Patch
cords/test leads
- Connection
diagrams
- Teaching
manual
- Experiment/exercise
manual
Teaching Manual
A comprehensive practical manual shall be supplied covering:
- Transformer
theory
- Construction
and working principle
- Transformer
ratio
- Star
and Delta connections
- No-load
test
- Short-circuit
test
- Load
test
- Voltage
regulation
- Losses
and efficiency
- Power
factor
- Three-phase
power
- Two-wattmeter
method
- Observation
tables
- Calculation
procedures
- Result
and conclusion formats
- Safety
procedures
Typical Front Panel Layout
3-PHASE
INPUT
VARIABLE VOLTAGE / AUTOTRANSFORMER
PRIMARY & SECONDARY MEASUREMENT
STAR / DELTA TRANSFORMER CONNECTIONS
LOAD / TEST POINTS