|
TOSHIBA INDUCTION MOTORS
AND AC DRIVES - VFDs - INVERTERS
DMT INTERNATIONAL is also into
sophisticated electrical/ electronic products like Toshiba Motors and Medium
Voltage Inverters (Variable Frequency Drives-VFD™s) manufactured in Japan and offered
on indenting basis trough TOSHIBA
INTERNATIONAL COMPANY Pty. Ltd. Australia and for Soft Starters and
Inverters of Low Voltage through Miyakawa.
Kindly let us know your
requirements of motors and inverters specifications to enable check with Toshiba
accordingly and suggest you the best suitable equipment.
Kindly let us know your
requirements of motors and inverters specifications to enable check with Toshiba
accordingly and suggest you the best suitable equipment.
To get more efficiency of MOTOR
and for further reducing your energy bills, TOSHIBA (JAPAN) have developed
special different types of AC Drives called as variable Frequency Drives(VFDs)
or in short Inverters. e.g. VF-P7, VF
S-11, having wide range of applications.
These AC Drives (VFDs) are to be
used with your motors in the industry. They are widely used in various Industries
for Energy Savings (10-40%), realizing with High Efficiency (less Harmonic
contents reduces the Harmonic loss of the motor& Higher efficiency by
eliminating output transformer) and Higher Input Power Factor (approx. 95% or
more), Harmonic Currents are reduced by 18 Pulse Rectification, Stable Speed
Control with Constant Torque, Out Put Current Closed to Sine Wave and High Reliability.
So for your TOSHIBA requirements
call upon us. We can offer TOSHIBA MOTORS and INVERTERS (VFDs) mostly made in
Japan on Indenting Basis through Toshiba International Corporation Pty. Ltd,
Australia Office.
Therefore for your specific requirements
Toshiba Motors & Inverters (VFDs) please contact us on either telephone/
mobile or email/ fax to enable us proceed further.
For more information on products,
visit our website www.dmtinternational.net
PRIME FUNCTIONS AND ADVANTAGES OF VFDs:
- Considerable
amount of Saving in Energy up to 10-40%
can be achieved by using this TOSHIBA Make AC Drive (VFD), rather than using
with Normal Damping Control.
- Direct
drive for medium voltage and heavy duty induction motors realizing high
efficiency and high input Power Factor.
- Harmonic
Currents are reduced by 18 pulse rectification using a special designed
transformer. - Output current is close to sine wave by multilevel PWM technology.
- This
product called TOSHIBA Inverter has got high reliability.
- Stable
speed control, without a speed sensing device.
- Toshiba
TM Drive MV can drive any type of standard motor.
- Can
be used for constant torque & high starting torque applications e.g. Extruder & mixer.
- Tough
operation at a momentary power failure, i.e.
During power failure TM Drive can continue to operate (with in
300msec.) & after input power
recovery, the coasting motor can be restarted smoothly & automatically.
- Easy
engineering & easy maintenance i.e.
-
No
Harmonic Filter required.
-
No
power filter connection capacitor required.
-
Smaller
output cable size compared with that of conventional LV Inverter.
-
Drawable
type cell inverter construction.
- Air Cooled Type: Each panel is cooled by the cooling fan
mounted on the top of the panel.
VFDs Features:
Automatic energy saving function
ensures efficient energy saving by limiting the the current to the
motor.
Momentary power failure measures
the auto-restart function smoothly restarts the coasting motor.
Ride-through control mdoe enable to keep running on regenerative
energy by the motor in case of a momentary power failur.
Note: Depeding
on the inertia or loading conditions, it can sometimes be difficult
for the machine to keep operating.
Commercial
power/inverter switching circuit Vf-p7 has a sequence to switch
them.
PID control
Vf-P7 has PID control function for process control of air volume,
discharge, pressure etc.
Preset-speed
operation a maximum of 15 speeds are selectable.
Soft stall if
the Vf-P7 detects an overload, it automatically reduces the output
frequency before the motor trips.
Retry
function if a protective function is activated, the VF-P7 tries to
restart the machine a maximum of 10 times
Low-current
detection this function enable to prevent the machine from idling
Protective
functions
I/O phase
failure detecting function
Ground fault
detecting function
Dependable
operation in case of power voltage drop (+10%, -15%)
Even if the
input voltage fluctuates, the VF-P7 keeps the V/F ratio constant by
correcting the supply voltage.
The
electronic thermal characteristic and the motor 150% - overload
withstanding time are parameter selectable.
Options
Ac/Dc Reactor
Radio
Breaking
resistor
Motor noise
reduction filter
Motor end
surge voltage suppression filter
Extended
panel/parameter writer
Remote
control panel
Communication
options
Board type
options
Add-on module
options
Protection
options.
|