IGBT CCR (Insulated Gate Bipolar Transistor)
Line Filter blocks the
noise of the equipment
and filters out voltage
pulses from the input voltage
12.5 KHZ filter that blocks the noise
of the equipment produces from the
line input at a different frequency
than the line filter
Provides the correct current
and voltage to power all the
electronic components such
as PCBs and Power Fans
The IGBT PCB measures
the output signal from the
IGBT H-Bridge
415V
Power
Supply
Transformer
Line
Filter
Main
Breaker
Sensing
Trans
415 V
24 V
Power
Supply
PCB
Provides correct current and voltage
to PCB's power to fans and contactor
Fuse
The Diode bridge converts the
AC line input to a rectified current
and voltage
IGBT Power Bridge
Main
Contactor
Input
Filter
Diode
Bridge
Sensing
PCB
IGBT
PCB
PWM
Filter
Output Filter
The output filter is a
Pulse Width Modulation
(PWM) filter that builds
the pure sine wave signal
that comes from H-Bridge
The sensing
PCB measures
the AC input line
Sensing transformer measures
the input voltage level of the
line input
HMI
CPU
PCB
Receives the measurement data of the output current
and voltage from output measure PCB via optical
fibre and compare this value with required value.
A software logarithms process this data to adjust the
signals from output filter.
Sensing PCB measures
the AC input line and controls the
diode bridge
Remote
Control
PCB
Output
Measure
PCB
Lightning
Arrestors
CUT
OUT
The output measure PCB measures
the output voltage & current, and will
send these measurements to the CPU
The lightning arresters varistors, as
such as varisotors used in a sensitive
electronic circuits to ensure that if
the voltage does suddenly exceeds a
a pre-determined value the varistor will
effectively become a short circuit to
protect the circuit that it shunts from
excessive voltage as they are able to
withstand peak currents of 100s
of amperes