Intern
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tifi
n al C e r
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ICR
ISO 9001
IAF
gis trar Ltd
DSP Based Static Kramer Drive
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Re
An ISO 9001:2000 Company
DSP BASED STATIC KRAMMER DRIVE
It consist of three major parts : a. SCR 3F inverter b. DSP based inverter firing circuit
c. Slip ring induction motor setup with rotor converter circuit & RL for DC filtering.
a. SCR 3 PHASE INVERTER :
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It consist of 6 nos. of SCRs rated at 1200V, 50Amp with suitable heat sinks to form 3 phase
fully controlled converter work as a 3F inverter (a>90o)
b. DSP BASED INVERTER FIRING CIRCUIT:
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TMS320F2407A DSP based firing circuit
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Six isolated gate signals for full bridge converter
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Firing angle variable from 180o to 0o through ramp & pedestal control
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Gated carrier source at 4KHz
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Housed in a sleek cabinet
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Test points provided on the front panel for detailed study of circuit signals by the student
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Necessary test points terminated at sockets for student to monitor/measure/study signals using CRO, DVM.
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One potentiometer to vary the firing angle
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One ON/OFF switch with indicator provided to power the control circuitry for students to monitor all the
test points of the control circuitry for correct functioning.
C. SLIP RING MOTOR WITH DIODE BRIDGE RECTIFIER :
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3 phase 3 hp slip ring induction motor
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Make : Benn / kirloaskar /CG / Siemens or equivalent
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Volts : 400/440V, 3 phase, 50 Hz
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2.2 KW (3hp), RPM : 1440, 4.5 Amps
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Rotor Volts : 210volt
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Rotor current : 6Amps
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One no.
of 3 phase bridge rectifier provided to convert rotor circuit volt 13%, 210V to dc
of „L? & „R? should be provided for dc filtering
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Necessary test points provided for easy study
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Entire control circuit mounted inside a compact box
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Mimic circuit should be drawn in the front panel
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Many test points provided along with front panel
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A nice text-lab manual provided
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One no.
POWER SUPPLY
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Input 230V + 10%, 3 phase AC
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+ 15V DC @ 0.5A regulated output for the control circuitry
Mfg. By :METER CENTRE, Ahmedabad