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FIELD OF APPLICATION
Three-phase flat motors are special motors, which are intended for the drive of
circular saws and cuters being directly fixed on the shaft of elektrical machine.
DESCRIPTION
Charakteristic construction feature of these motors is a small height of centre
of rotation at relatively high power output. Aluminium frame ribbed on both sides, having
a terminal box located on the machine-side. Foots are situated on cast iron end shields.
Non-typical fan housing. Tfe shaft with a carrier and bearing assenbly with berings of
various dimensions. Universal application of three-phase flat motors is demonstrated by
possibility of its supply from a static frequency converter up to 300 Hz and special
design with built-in electromagnetic brake. |
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Basic data
|
| pole number |
2p = 2 |
| supply
voltage |
3x380 V ±
5% and frequency 50 Hz, direct on-line starting, or by change over switch |
| duty type |
Continuos
operation S1,continuos duty type with intermittent load S6-40% (IEC 34-1) (The outputs and
the currents at duty types S1 a S6 are stated in the tables dimensioned sketches - PS1/
PS6 and IS1/IS6 ) |
| type of
construction |
IM 1081
(IEC 34-7) |
| degree of
protection |
IP 54 if
ordered the motors can be delivered with IP 55 degree of protection |
| synchronous
speed |
ns1
= 3000 min-1 |
| relative
pull-out torque |
Tm
/ TN = 3 |
| cooling |
IC 01- 41
with external cooling (IEC 34-6) |
| class of
thermal insulation |
F |
| environment |
-
Basic
-
environment of inner spaces with a
temperature of air from -5 oC up to +35 oC, and relative air humidity not excelling 80%
and absolute air humidity not excelling 15 g/m3
-
Cold
-
environment of inner spaces with a
temperature average in 24 hours lower than -5 oC as usual
-
Humid
-
when the air contains more 15 g water per 1
m3 or a relative air humidity of the air is permanently higher than 80%
-
when water precipitates on objects, walls,
ceilings and floors but does not keep dripping or flowing in continuous laurels and it
does not cover the floor either
-
Wet
-
when water permanently or most of the time
is dripping, spraying or jetting flowing over the device, walls or the floor, or where
possibly flooding of electrical devices occurs
-
Under a shed
-
where the electrical device is protected
against the direct effects of snow, rain and solar radiation but otherwise it is exposed
to climatic effects of atmosphere including corrosive effects
Ambient temperature is +40 oC , altitude
above sea level is up to 1000 m. |
DATA TO BE QUOTED IN ORDERS
-
type designation
-
power output
-
rated voltage
-
duty type
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degree of protection
-
type of construction
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