— Voltage - frequency -
power —
The motors can be manufactured for all standard
network conditions.
Special voltage-frequency-conditions for the operation with frequency
converters are possible without any problems to a great extent.
Should speeds of more than 3000 min¨¹ result in this
case, we recommend to contact us. Higher speeds are possible according
to the motor size. With smaller motors (IEC 63-71), the limits
are around 30 000 min¨¹.
Power
The powers stated in the data sheets are nominal powers according
to VDE 0530 with continuous operation (S 1). The power data apply
under the following operating conditions:
installation height: < 1000 m above sea level
ambient temperature: < = 40 degrees Celsius
nominal voltage: +/- 5%
nominal frequency
Deviating operating conditions can be taken into consideration
by reducing the load. Guide values for the admissible load depending
on the installation height and ambient temperature can be seen
in the following table.
| Insulating material class B - P = % Pn |
| Height above sea level |
Ambient temperature degrees C |
| (m) |
10 |
20 |
30 |
40 |
50 |
60 |
|
| 1000 |
100 |
100 |
100 |
100 |
87 |
70 |
| 2000 |
100 |
100 |
100 |
90 |
75 |
55 |
| 3000 |
100 |
100 |
92 |
77 |
60 |
32 |
| 4000 |
100 |
95 |
80 |
62 |
37 |
0 |
|
Isolierstoffklasse F - P = % Pn
|
| Höhe ü. NN |
Umgebungstemperatur Grad C |
| (m) |
10 |
20 |
30 |
40 |
50 |
60 |
|
| 1000 |
100 |
100 |
100 |
100 |
90 |
77 |
| 2000 |
100 |
100 |
100 |
90 |
77 |
65 |
| 3000 |
100 |
100 |
90 |
77 |
65 |
47 |
| 4000 |
97 |
87 |
77 |
62 |
45 |
15 |
ATTENTION: This
table applies to motors of standard design. By adapting the winding
and the insulating material class to the respective conditions,
considerably better values can partially be attained. The table
cannot be applied to single-phase motors, torque motors and reluctance
motors.
With motors < 0,5 kW, we recommend to contact us as the standard
design of these motors sometimes also has considerable thermal
reserves
Due to the otherwise significantly worse power factor, an adaptation
to the winding is in any case recommendable with a continuous
loading of the motors with a nominal power less than 65%.
Operation of 50 Hz motors with 60 Hz network
Standard three-phase motors manufactured for
50 Hz operation can generally be operated with a 60 Hz network.
Two cases must be differentiated:
New operating data in % nominal data:
| 1. Mains voltage 60 Hz = motor
nominal power 50 Hz |
| Power |
Speed |
Torque |
la/ln |
Ma/Mn |
Mk/Mn |
| 100 |
120 |
83 |
83 |
83 |
83 |
Attention! The absolute values for starting current,
starting torque and breakdown torque are reduced by approx. 30%.
| 2. Mains voltage 60 Hz = 1.2
motor nominal power 50 Hz (type DN) |
| Power |
Speed |
Torque |
la/ln |
Ma/Mn |
Mk/Mn |
| 115 |
120 |
96 |
104 |
104 |
104 |
These values are guide values, exact data depend
on the type and size. If required, please contact us. With a special
winding, the powers of case 2 can also be attained with other
mains voltages. Data for other motors can be seen under the respective
types of motors.
Insulation and heating
The motors are manufactured with varnished
copper wires, insulating materials and impregnating varnishes
of renowned manufacturers.
The windings are vacuum impregnated and are correspondingly
tropic-proof in everyday usage.
With particularly problematic ambient conditions,
the windings can additionally be provided with a special finishing
varnish (F 93). With this, an excellent protection against many
chemicals, sea water and termites is attained.
Totally enclosed motors of the type DN /
EN can be manufactured with cast windings (up to insulation class
B). The admissible heating of the windings is, acc. to VDE 0530,
depending on the used insulating materials, assigned to the insulating
classes.
| ISO-cl. |
E |
B |
F |
H |
|
| Overtemperature
A |
75 |
80 |
105 |
125 |
| B |
75 |
85 |
110 |
130 |
Maximum temperature
degrees C |
120 |
130 |
155 |
180 |
|
A: normal motors
B: motors < 600 W or without fan with cast windings.
According to the heating during nominal operation,
our motors are manufactured according to the insulation classes
B or F (refer to technical data of the individual series).
Under normal operating conditions, the windings attain a lifetime
of approx. 25000 hours. In order to extend the lifetime or with
increased ambient temperatures, a higher insulating material class
can be applied (up to ISO cl. H).
[ top ]
— Type code
—
|
1
|
2
|
|
3
|
4
|
|
DNR
|
100 LA
|
/
|
4
|
NFTs
|
| 1. |
Series designation |
construction type of protection
|
| |
DN |
three-phase motor |
IP 55
|
| |
EN |
single-phase motor |
IP 55
|
| |
DNR |
three-phase motor with special rotor |
IP 55
|
| |
ENR |
single-phase motor with special rotor |
IP 55
|
| |
DNV |
three-phase motor for fan drive |
IP 55
|
| |
DNW |
three-phase motor for winding drives |
IP 55
|
| |
|
|
|
| 2. |
Size code |
|
| |
with construction DN/EN: IEC size code |
|
| 3. |
No. of poles |
|
| |
with pole-changing motors of all pole numbers
in decreasing order, e.g. 8 - 6 - 4. |
| |
|
|
|
| 4. |
Additions for special designs / attachments |
|
| |
D |
torque motor |
additional "s" with one of the letters means
deviation from the listed design
combined with different attachments resp. special designs,
corresponding letter combinations are used
special type code for single-phase motors, refer single
phase motor list
|
| |
N |
voltage controlled motors |
| |
R |
reluctance motor |
| |
B |
mechanical brake |
| |
F |
separately driven fan |
| |
G |
damped oscillation bearing arrangement
(only in connection with R-rotor, special rotor) |
| |
I |
pulse generator |
| |
W |
eddy-current brake |
| |
T |
tacho-generator |
if some of the data cannot be stated, the design
described in the "Standard" column
will be supplied.
* Attention! (Note for the
previous tables)
a. reluctance motors are always laid out for Y-circuit
b. voltage controlled motors of the series DNR ... N are laid
out for D-circuit starting from 7,5 kW
**Attention! (Note for the
previous tables)
With voltage controlled motors, agree upon voltage, circuit and
frequency with the supplier of the devices for variable voltage.
When ordering spare motors and / or spare parts, the serial number
of the original motor must definitely be stated. Otherwise an
exchangeability without any problems cannot be guaranteed.
Motors without terminal boxes
are manufactured upon request with cable. In this case, it is
necessary to state the requested cable length and possibly also
the type of cable. PTC thermistors or thermal contacts are generally
designed with a separate 2-wire cable. Connections for motor winding
and attachment parts such as e.g. separately driven fan, brakes,
or similar parts, can be designed with common multiple-wire cables.
Special wishes can be taken into consideration if they are possible.
)
/Y