PRODUCT OVERVIEW: The SB-TEK SB-LT-P4 Transmission Line Simulator with Transformer Trainer is an advanced educational system designed for in-depth study of electric power transmission and transformer behavior. It allows trainees to analyze the characteristics of long-distance transmission lines, investigate voltage drops and losses, perform detailed transformer tests, and understand modern protection techniques used in the power sector. This trainer is suitable for engineering institutes, vocational training centers, and industrial training.
FACILITIES.
Main Subjects Covered:
• Models of power transmission lines with concentrated parameters
• Voltage drop calculation and power losses in transmission lines
• Study of copper and aluminium line types
• Parallel operation of power transmission lines
• Ideal transformer vs. real transformer characteristics
• No-load, load, and short-circuit tests of transformers
• Efficiency of three-phase transformers
• Star, delta, zig-zag connections and time index study in three-phase systems
• Protection devices and practical transformer safety operation
Main Installed Components:
Line 1:
• Adjustable parameter: conductor section (capacity
in A)
• PI-model transmission line representation
• Simulated line voltage: 120 kV, operating voltage:
400 V
• Simulated power rating: 10 / 15 / 20 MVA
• Operating current: 1 A
• Equivalent distributed resistance: 18 – 25 – 35 ?
• Distributed inductance: 72 mH
• Distributed capacitance: 0.2 ?F
• Circuit breakers provided at both source and load
ends.
Line 2:
• Adjustable parameter: transmission line length (km)
• PI-model transmission line representation
• Simulated line voltage: 120 kV, operating voltage:
400V
• Simulated power rating: 20 MVA
• Operating current: 1 A
• Equivalent distributed resistance: 8.9 – 18 – 35 ?
• Distributed inductance: 144 – 72 – 36 mH
• Distributed capacitance: 0.1 – 0.2 – 0.4 ?F
• Circuit breakers provided at both end points
TRANSFORMER UNIT:
• Functions as a step-up transformer at power plant
output
• Power rating: 1500 VA
• Primary voltage: 230/400 V (Delta/Star), 50–60 Hz
• Secondary voltage: 230/400 V with selectable variation:
–5%, +10%, +15%
• Adjustable phase shift between primary and secondary:
±5°, ±10°, ±20° with zig-zag connection
• Protection class: IP 22
• Embedded thermal protector for overload safety
• Safety terminals with 4 mm section.
