Power Electronics

1 f Cyclo Converter 8518

8518_miniSALIENT FEATURES :

It is an experimental kit for converting AC input voltage into variable AC output Voltage with the change in output frequency.

1.      Line Synchronized Firing angle circuit.

2.      Soft start.

3.      Output frequency can be 1/3rd or ½ of the input frequency.

4.      Availability of test points at strategic locations for observations of respective waveforms on CRO.

5.      Variable frequency / Variable output voltage.

6.      Over current / dv / dt protection.

TECHNICAL SPECIFICATION

*          Input                 :      1φ 230V, 50 Hz.

*          Output              :       AC 100 to 200V.

*          Frequency      :      Selectable

                                                →     1/2 Finput.

                                                →     1/3 Finput.

                                                →     1/4 Finput.

1 f Transistorised PWM Converter 8517

8517_miniSALIENT FEATURES :

*          Completely self – contained stand – alone unit.

*          Demonstrates the principle and working of Transostorised PWM Converter.

*          Triggering circuit synchronized to the mains and with frequency and duty cycle controller.

*          Power circuit using Power Transistor.

*          Effect of phase control on Lamp ( R load ) Inductive ( R-L load ).

*          Multi – coloured sturdy 4mm test points are provided at various stages in the circuit to observe the waveforms, voltages and for necessary inter connections.

*          Set of required patch cords.

*          Housed in an elegant cabinet with a well spread intelligently designed circuit layout on the front panel.

*          Strongly supported by a comprehensive manual complete with theory and operating details.

1 f Full Wave Full Controlled Bridge Rectifier 8516

8516_miniSALIENT FEATURES :

BRIDGE FIRING CIRCUIT :

*          Four – isolated gate signals for full Bridge converter.

*          Firing angle variable from 1800 to 0through Ramp and Pedestal control.

*          Gated carrier source at 4 KHz.

*          Housed in a sleek cabinet.

*          Test points are provided on the front panel for detailed study of circuit signals by the student.

*          Necessary test points are terminated at sockets so that the student can monitor / measure / study the signals using CRO, DVM, etc.

*          One Potentiometer to vary the firing angle.

*          One ON / OFF switch with indicator provided to power the control circuitry so that the students can monitor all the test points of the control circuitry for correct functioning.

*          Power Supply :

            *          Input      :      230V + 10%, 50Hz single phase AC.

            *          +15V DC @ 0.5A regulated output for the control circuitry.

POWER DEVICES CIRCUIT :

*          Four nos of SCR’s rated for 1200 volts VAK and 25 Amps 1A.

*          One diode for free wheeling.

*          Each device is provided with.

            *          RC Snubber for dv / dt protection.

            *          Fuses to avoid overload.

*          All the G, A, K & MT terminals are terminated on connectors to use patch cords.

LOAD :

*          One fixed Resistive load ( Lamp Load ).

*          One fixed Inductive load.

*          All points are terminated at the front panel for wiring for each experiment.

1 f Full Wave Half Controlled Bridge Rectifier 8515

8515-1_miniSALIENT FEATURES :

HALF BRIDGE FIRING CIRCUIT :

*          Two – isolated gate signals for Full Bridge Converter.

*          Firing angle variable from 1800 to 00.

*          Gated carrier source at 4 KHz.

*          Soft start circuit is built – in.

*          Housed in a sleek cabinet.

*          Test points are provided on the front panel for detailed study of circuit signals by the student.

*          Necessary test points are terminated at sockets so that the student can monitor / measure / study the signals using CRO, DVM, etc.

*          One Potentiometer to vary the firing angle.

*          One ON/OFF switch with indicator provided to power the control circuitry so that the students can monitor all the test points of the control circuitry for correct functioning.

*          Power Supply :

            *          Input         :       230V + 10%, 50Hz single phase AC.

*          +15V DC @ 0.5A regulated output for the control circuitry.

POWER DEVICES CIRCUIT :

*          Two nos of SCR’s rated for 1200 volts-VAK & 25 Amps IA.

*          Two diode for free wheeling.

*          Each device is provided with.

            *          RC Snubber for dv / dt protection.

            *          Fuses to avoid overload.

*          All the G, A, K & MT terminals are terminated on connectors to use patch cords.

LOAD :

*          One fixed Resistive load ( Lamp Load ).

*          One fixed Inductive load.

*          All points are terminated at the front panel for wiring for each experiment.

1 f Full Wave Full Controlled Rectifier 8514

8514_miniSALIENT FEATURES :

*          Completely self – contained stand – alone unit.

*          Demonstrates the principle and working of 1f Full Wave Controlled Rectifier using SCR.

*          Supply required 230V, 50Hz AC.

*          Triggering circuit using UJT and Pulse transformer.

*          Effect of phase control can be observed on R ( Lamp ) and R – L ( Motor ) load.

*          Test points at various stages in the circuit, to observe the voltages and waveforms.

*          Set of patch cords provided.

*          Housed in an elegant cabinet with a well spread intelligently designed circuit layout on the front panel.

*          Strongly supported by a comprehensive manual complete with theory and operating details.

1 f Half Wave Half Controlled Rectifier 8513

8513_miniSALIENT FEATURES :

*          Completely self – contained stand – alone unit.

*          Demonstrates the principle and working of 1Half Wave Half Controlled Rectifier using SCR.

*          Supply required 230V, 50Hz AC.

*          Triggering circuit using UJT and Pulse transformer.

*          Effect of phase control can be observed on R ( Lamp ) and R – L load.

*          Test points at various stages in the circuit, to observe the voltages and waveforms.

*          Set of patch cords provided.

*          Housed in an elegant cabinet with a well spread intelligently designed circuit layout on the front panel.

*          Strongly supported by a comprehensive manual complete with theory and operating details.