SIEMENS
工程信息
Sinamics GM150，Sinamics SM150
电动机
9/16
Siemens D 12 · 2012
9
■
配置
使用多个绕组系统的电动机操作
To increase the output power of the converters it is possible to
并行操作多个电源单元。这样，最大
功率高达13 MVA，输出电压为4.16 kV
can be achieved by connecting two SINAMICS GM150 in the
IGBT version converters in parallel. Using the same principle, a
最高功率评级为21 MVA或31.5 MVA
connecting three SINAMICS GM150, in the IGCT version and
Sinamics SM150转换器并联。
To ensure a uniform division of current between the two sub-
systems, two or three electrically isolated but mutually non-
电动机中需要移位绕组系统。
Operation of two-pole motors
High-speed converter drives with 2-pole motors require special
measures regarding their mechanical design (limiting and
critical speed, bearings, rotor design, foundation design).
An inquiry is required for such applications.
对于改造申请，有必要确保
电动机在主体中没有机械的自然共振
Vided设置范围。受影响的速度范围可以抑制
by the converter if necessary.
操作explosion-protected motors
电动机from Siemens are also available in versions for use in
areas subject to explosion hazard. Types of protection available
因为电动机是：
•
Pressurized enclosure: Ex pe IIC T3
ACC。到EN 60079-2/VDE 0170/0171 T301（IEC 60079-2）
•
Non-sparking: Ex n AIIC T3
ACC。to EN 60079-15/VDE 0170/0171 T16 (IEC 60079-15)
Apart from the measures required – also for fixed-speed motors
– to increase the type of protection, for variable speed motors
it is also necessary to have a shaft grounding device with type
of protection type Ex d IIC T6 (without rotary pulse encoder) or
Ex de IIC T6 (with rotary pulse encoder).
对于提高安全性的电动机，始终需要查询
可执行程序。
Ex certification
For motors with Ex n type of protection and converter operation
可能有必要接受案例的完整系统 -
for-case basis in order to issue an Ex certificate. An inquiry is
required for such cases.
不需要完整驱动系统的接受测试
对于具有EX PE类型的保护和转换器操作的电动机。
Drives for a square-law load torque
Driven loads with a square-law load torque (
M
~
n
2
) such as
pumps and fans, require the full torque at rated speed. In-
creased starting torques or load surges do not usually occur.
It is therefore unnecessary to provide an overload capability for
the converter.
The following applies when selecting a suitable converter for
driven loads with a square-law load torque: The rated current of
the converter must be at least as large as the motor current at full
torque in the required load point.
Drives for a constant load torque
自动通风电动机无法提供其完整的额定扭矩
在整个速度范围内连续操作。缺点-
随着速度降低，允许的允许扭矩减小
because of the reduced cooling effect. Depending on the speed
range, the torque – and thus the power – must be reduced
因此，用于自冷电机。
For frequencies above the rated frequency
f
N
，驱动力
电动机以现场效力模式运行。在这种情况下，
the torque that can be utilized decreases with approx.
f
N
/
f
. The
功率保持恒定。足够的间隔
≥
30% from the
必须观察到故障扭矩，这会减少
(
f
N
/
f
)
2
.
有超载要求的驱动器
The rated data of the converters specified in the Technical data
provide no reserves for overload capability. The current rating
如果规格规格，必须始终减少转换器的
call for an increased overload capability of the converter. The
required power reduction differs according to the application,
operating mode and converter type. The derating can be deter-
mined on request if all of the boundary conditions are specified.
Operating standard line motors
(only SINAMICS GM150 in the IGBT version)
与可选的正弦波过滤器结合（选项）
Y15
) the
SINAMICS GM150 as IGBT version is ideal for the operation of
line motors in applications with a quadratic load torque (e.g.
pumps and fans). The near sinusoidal output voltages and cur-
rents rule out all loading of the insulating system and bearings.
The sine-wave filters supply the motors with almost sinusoidal
电动电流和电压，以便可以操作线电动机。
The sine-wave filter operates optimally for motors with a rated
frequency of 50 Hz or 60 Hz. It should be noted that only driven
loads with a square-law load torque may be operated (e.g.
泵，粉丝）。操作中使用的输出频率可以说明
in the range between 30 Hz and 66 Hz.
允许的场弱范围为1：1.1（最大55 Hz
50Hz motors and max. 66 Hz for 60 Hz motors).
The voltage harmonic distortion at an output frequency of 50 Hz
is less than 5 % when using a sine-wave filter.
为了将正弦波过滤器最佳调整到电动机上
额定电流的额定电流，额定点处的电动电流和
订购时必须指定电动机无负载电流。
© Siemens AG 2012