VERY ABLE "
TECHNICAL ASPECTS of "MOTCO"
make DC Rectifier Drives :
Designs, parts & Dimensions are as per I.S.I Standards. Latest
Innovations are incorporated. Changes are made with times and also
as per Customer demands.
is a rectifier bridge of suitable configuraton and a dimmerstat for
varying the voltage of motor and hence controlling speed. The system
incorporates all the necessary functional blocks such as power supply,
dimmerstat with appropriate cooling arrangement, contactors and field
Dimmerstat can be Motorised or non-motorised.
block consists of suitably rated diodes mounted on properly selected
heatsinks. Two sets of such blocks are provided one of field and other for
armature. While designing, due consideration has been given to the
starting torque, ambient temperature and the atmosphere in which the drive
is to be operated. The starting torque requirement from 1.6 to 2.5 times
can be met.
meets the electrical and functional requirements of the drive and
comprises switchgears like input switch or circuit breakers. output
contactors, indicating meters, push buttons and contactors/relay logics.
Meters to indicate the DC voltage, DC current and motor rpm and lamps for
mains ON and motor ON are provided on the front panel. Additional meters
can be provided on request.
panels are free standing, floor mounted types with or without the
cooling fan depending on the rating of the drive.
are chosen with appropriate cooling arrangements.
all components are accessible through the front door.
layout is such that the rectifier module can be serviced easily.
are available in IP 22, IP 41 and IP 51 types.
cables are colour-coded and ferruled and components labelled for
/ Deceleration Control.
problems of harmonics & ripples.
for armature feedback or tacho- feedback for better speed regulation.
solid state current limit adjustment.
number of test points for easier testing and maintainence.
braking for quick stoppage.
control for remote operation
feedback for better speed regulation.
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