| ELECTRIC
MOTORS |
 |
Range |
| The range
(1LAO) is available from frame sizes 160M to 355L in 2, 4, 6 & 8 pole
design. |
| Standards |
| Performance
conforms to IS:325, IEC 34, Part 1 and dimensions according to IS:12321,
IEC 72. |
| Ratings |
| Motors
are rated for continuous duty at an ambient of 400 C and site altitudes
of up to 1000m above mean sea level. |
| Voltage
and Frequency |
| Motors
are designed for 415V + 3%, supply. Any other voltage/frequency available
on request |
| Protection |
|
Motors
have IP55 degree of protection as a standard feature. This degree of protection
conforms to IS : 4691 and IEC 34, Part 5.
|
| Winding
Protection |
| Embedding
of PTC thermistors in the stator winding is feasible and can be provided
on request. |
| Motor
frame |
|
| Motors
are supplied in a robust, rugged cast iron frame with integral feet. |
| Terminal
Box |
| Standard
location of the terminal box is on the top of the housing terminal box on
right or left hand side of housing available on request. the terminal boxes
can be rotated in steps of 90 deg in each position. The terminal box also
has IP 55 degree of protection. |
| Insulation
System |
|
| Motors
are provided with Class 'F' insulation system. In the case of utilization
to Class 'F' temperature limits, either the amblent temperature can go upto
55 deg C for the same rated output or the rated output may be increased
by 10%. |
| Noise
Level |
| Motors
are designed for low noise levels in accordance with IS:12065 |
| Cooling
and Ventilation |
| Type of
cooling is IC 0141 as per IS-6362. All motors have an external bi-directional
centrifugal fan. |
| Paint |
| Standard
motor(RAL 7030) is provided and is suitable for tropical conditions |
| Earthing
Terminals |
| All
motors are provided with 4 earthing terminals, two in the terminal box and
one on each foot. |
| Bearing
System |
| Frames
upto 225M have pre-lubricated bearings as a standard feature but regreasing
facility can be provided on request. Frames 250 and above are equipped with
regreasable bearings as a standard feature. |