The major advantage of AC three-phase over DC power systems isthat the electrical power is generated economically in large power stationsrelatively far from the end users, transported at high voltage over longdistances with very little power loss and finally made available to theconsumers providing them with two different levels of voltage depending on theapplication needs. Today, the public electric power is supplied almostexclusively using three-phase systems with frequency of 50 or 60 Hz, dependingon the country.
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Features:
The equipment that you assemble will transmit voice from one point to another, using light traveling through an optical fiber.
The experiment of shows you how easy it is to make productive use of fiber optic materials.
With four different data transmission ways (self module
Transmission, and module-to-PC transmission).
Transmission, module-to-module transmission, PC-to-module.
This kit consists of suitable accessories for determining emission rate, color and ph level, software program manual and light source. Its application can be noticed in various teaching laboratories, earth science center and chemistry labs. Transmissions Experiments Kit is used for suitable measurement of different attributes of transmission lines and their input impedance. This multipurpose training system is used for providing thorough knowledge on phase delay, standing waves, attenuation and frequency response. This kit is suitable for explaining theories associated with color measurement based transmission, atomic emission and so on. We are a prominent manufacturer and exporter of Transmissions Experiments Kit.
Features:
Easy to understand mechanism
Simple to use
Meticulously designed.
It is used both for quantitative measurements and for demonstrating complex stress states. Photoelasticity is a proven method of analysing and recording mechanical stresses and strains in components. The components used are models made of a transparent, photoelastically sensitive plastic, which becomes optically birefringent under mechanical load.
Features:
Generate stress patterns with linear or circular polarised light
Monochromatic or white light.
The console is divided into two control panels, each with detailedmimic diagrams. The upper panel has a single phase transmission line equivalentcircuit, and the lower panel a three-phase transmission line. The lines may beloaded by the resistive, capacitive and inductive loads included. The Transmission Line Simulator investigates single-phaseand three-phase transmission lines. The effectscan be monitored by instruments at the send and receive ends of thetransmission lines. The single-phase transmission line includes a set ofinductive impedances connected in series. The configurable simulated transmissionlines allow realistic studies of short, medium and long-distance transmissionlines under variable load and power factor conditions, as well as with insertedfaults. Tapping points allow the user to:
Change the length of the simulated line
The three-phase transmission line is in six sectionsrepresented in per-unit values.
Monitor the voltage, current and power at any point alongthe line.
Set up Pi or Tee methods of loss profiling using differentvalues of capacitance and
Facilities include:
A fault application switch and earth fault resistors allowstudies of earth fault currents and the operation of relays of varyingsensitivity.
Operating under variable balanced or unbalanced RLC loads
Provision to vary the length parameters
Select able neutral
For protection tests, current transformers in the test circuits connect to the protectionrelay fitted to the control panel.
Mechanical Transmission Model
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Function of the drive shaft
Interaction of the individual shafts
Shifting of all gears
Main shaft
Countershaft and the reverse gear
Power distribution
Calculation of the different transmission ratios.
It is suitable for vocational colleges related courses such as hydraulic transmission, hydraulic and pneumatic transmission of practice teaching. Portable Hydraulic Transmission Training Device transparent hydraulic transmission experiment box is mainly for demo of the hydraulic transmission and hydraulic transmission basic loop (pressure, flow, direction control loop).
Features:
Hydraulic components, piping in a transparent hose, compact structure, reliable connection and no leakage.
Box set element component, hydraulic pump station, control motor and electric control part of box, the teacher may convenient will be live demonstration equipment into classroom teaching and the physical interpretation
Hydraulic components in a transparent organic glass shell as the basic, working medium for hydraulic oil, white system at work can be clearly observed that the working process of the hydraulic components of the valve core, intuitive is strong.
The transmission can be turnedeasily, the gears changed by hand and compressed air applied in part. The shiftlock is functional. Cutaway are: wet clutch, timing case, transmission case,main shaft, oil cooler, oil filter, oil pump. The transmission is mounted on a table stand. The function of the clutch can be demonstrated by pressingthe disks together.
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The input shaft is driven a motor dynamometer via a belt and pulleys. Speed is controlled by an inverter. The output shaft is attached to an eddy current absorber dynamometer. The Automotive Gear System Efficiency Manual Transmission apparatus is table top unit for studying an automotive gear system efficiency under different gear ratios and speeds. The system requires outside water supply for water brake absorber cooling. The unit is a bench top with adjustable footings. The system uses a manual automotive gear.
Experiments:
Effect of speed and load on efficiency.
Input power, output power and efficiency.
A direct-shiftgearbox commonly abbreviated to DSG is an electronically control led dual-clutch multiple-shaft manual gearbox in a transaxle design, without aconventional clutch pedal and with fully automatic or semi-manual control.
Smart Direct Shift Transmission By Getrag:
The following can be seen:
Synchronization
Differential
Duplex clutch
Parking lock
Actuators
Gear wheels
Mechatronics.
The various parts are supplied as accurate cutway models, connected together to show thier operation in an easy, immidiately understandable manner. Transmission Assembly fitted to most 4x4 cross country vehicles.
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The transmission can be turned easily and the gears can bechanged by hand or compressed air. The shift lock is functional. Thetransmission is mounted on at able stand. The function of the clutch can be demonstrated by pressing the disks together.
Cutaway are:
Transmission case
Oil cooler
Wet clutch
Timing case
Parking mechanism
Oil filter.
The gear wheels and the synchronisations are easy torecognise
A six-speed manual transmission of the latest generation.
The shafts can be rotated and the box can be shifted intoall gears
The transmission is installed in the new Mercedes-Benz C-Class
The transmission can be turned easily, the gears changed byhand and compressed air applied in part. The shift lock is functional. Thetransmission is mounted on a table stand.
Cutaway are:
Dry clutch
Transmission case,
Oil pump,
Timing case
Pressure accumulator
Main shaft,
Clutch actuation.
Set-up of a equal-axled three-shaft transmission
Shifting the 6 forward gears and the reverse gear
Reading and calculation on the various ratios
Pushing together and separation of the shafts
Insertion of the reverse pinion.
The transmission has 4 forward gears and one reverse gear. Transmission input shaft, main shaft, countershaft and reverse gear, the control forks with gearshiftlinkage, pneumatic cylinder and the rotor oil pump are very easy to see. By a differenttransmission onto the countershaft, the split group makes it possible for 4further gears each to be found between the 4 other gears to be shifted. Aplanetary gear train acts as a rear-mounted group, with the result that the 8 gears can be used in fast mode or in slow mode. The rear-mounted group and the 4 basic gears are shiftedmechanically on the model, split group pneumatically. In this way, a total of 16gears is available. As thetransmission has a weight of about 320 kg, it has been fitted on a trolley.
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The following can be seen:
Synchronization
Duplex clutch
Mechatronics
Gear wheels
Pressure reservoir
Differential
Parking lock
Oil cooler
Oil pump and electric motor.
The transmission is rotating, the dual-clutch is also movable and oilpump runs along. This is a 7-speed dual-clutch transmission from in transaxleconstruction with self-locking differential. Shift forks can be actuated manually.
The following are easy to recognize:
Self-locking differential
Dual clutch
Oil filter
Oil pump
Gear wheels
Shift forks
Mechatronics
Parking lock.
With this board the students can study the operating principle of the transmission of digital signals using the most common modulations such as ASK(Amplitude shift keying), FSK(Frequency shift keying) and PSK(Phase shift keying) with the aid of encoders decoders NRZ, RZ, Manchester, Bi phase and Duo binary. The design and construction of electronic circuits to solve practical problems is an essential technique in the fields of electronic engineering and computer engineering.
Circuit Blocks:
Bi phase coding and decoding
NRZ (Non Return to Zero) coding and decoding
Duo binary coding and decoding
RZ (Return to Zero) coding and decoding
PSK modulation and demodulation
ASK modulation and demodulation
FSK modulation and demodulation.
