Toshiba T300MVi MEDIUM VOLTAGE - Circuit Operation - Main Circuit Configuration

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CIRCUIT OPERATION
Main Circuit Configuration
The following circuit shows the configuration of the T300MVi 4160V drive. Input AC is supplied
through an input controller to transformer T1. The transformer has four (4) isolated secondary windings per
output phase, each feeding a 3-phase full wave rectifier bridge. The output of the rectifiers is connected to
three inverter power modules that produce 3-phase AC power at the frequency and voltage required by the
motor.
T300MVi Circuit Configuration
M
Main Power
7.2 kV class or below
E
Sensing PT's
120 output
Phase Leg
A
ssembly
Optional Integral
dv/dt Filter
Integral
Transformer
A
ux & Control
Power
460 std., others avail
120 v sec
Power
Supply
(15PS1)
+5V dc
+15V dc
-15V dc
0V dc
+24V dc
0V dc
Phase Detection
Module
Main Controller
Gate Signal
Distributor
External I/O
Voltage
Detection
Module
Optical
Link
Module
Integral
Pre-charge
circuit
Integral
disconnect
Option
24 Pulse
Source
Current
Feedback
Output bypass
disconnect
Option
Optional
Input bypass
disconnect
Integral
Lightning
arrestor
460 Vac
Control power
feed option
ONE PHASE LEG OF 3 LEGS
SHOWN
Fan Fan Fan Fan
optional
redundant fans
shown dotted
Power Brid
g
e To
p
olo
gy
-2.vsd Jan-24-
Standard
E.S. Shield