Requirements Of The Ec Directives; Transport And Storage; Transport; Storage - Andritz SM Serie Instructions De Service

Series SM
• No additional coatings may be applied to the motor, since
they will compromise the heat transmission of the motor.
• According to the specifications in the order, the motor is gen-
erally suitable for direct (DOL) or star-delta starting. Starting
via a soft-start device or operation via a frequency convert-
er are only permissible if this is explicitly approved in the con-
tract documentation. The use of a soft-start device or a
frequency converter requires a special motor rating or special
requirements for the devices (soft-start device, frequency
converter, etc.) and their settings.
• The motors are suitable for vertical installation (with the
shaft end pointing upwards). Horizontal installation is only
possible if this is explicitly approved in the contract documen-
tation.
• If there is no check valve already integrated into the stand-
pipe, be sure to provide one! We recommend using a spring-
loaded check valve.
• In wells with a variable water influx, we recommend installing
a level switch to keep the motor and pump from running dry.
Running dry will cause immediate damage to the motor
and pump.
2.2.1 Special requirements -
starting with a soft-start device
• Starting voltage: U ≥ 70 % of the rated voltage
A
• Acceleration time/ramp: preset to t
(the actual time to reach the rated speed is then 2 - 3 s).
• Deceleration time/ramp: Preset to t
celeration ramp should be omitted completely.
• After acceleration, the soft-start device should be bypassed
by means of a contactor to avoid loss of power in the soft-start
device and in the motor. In particular, please consult the sup-
plier of your soft-start device about this.
2.2.2 Special requirements -
operation with a frequency converter
• Because of the higher electrical losses in the motor, the motor
rating must be planned with a power reserve of at least 10%.
• Minimum operating frequency: f
Sufficient coolant velocity along the motor must be ensured.
• Maximum operating frequency: f
the motor
The nominal frequency of the motor is 50 or 60 Hz, depending
on the motor variant. This is shown on the rating plate or in
the contract documentation. The nominal frequency and nom-
inal power of the motor may not be exceeded.
• Acceleration time (f = 0 to f
• Deceleration time (f = f
min
• The rated motor current may not be exceeded.
• Maximum permissible voltage rise ≤ 500 V/µs.
Maximum permissible voltage peak to earth with PVC insula-
tion ≤ 800 V and with PE2/PA insulation ≤ 1000 V.
Note: These limit values are generally achieved with the aid
of a sinusoidal filer or /
du
• The open-loop and closed-loop control response of the fre-
quency converter must correspond to a linear
tic control. For other open-loop and closed-loop control
principles, the manufacturer of the frequency converter must
guarantee that the particular characteristics of submersible
motors are taken into account.
• The power and control cables between the motor and the
wellhead must be laid separately from each other, and con-
nected there via a terminal box. The control cables must be
shielded.
16
≤ 5 s
H
≤ 5 s. If possible, the de-
A
= 30 Hz
min
= nominal frequency of
max
): t = 3 s.
min H
to 0 ): t = 3 s.
A
filter.
dt
U / characteris-
f
• Outgoing cables from the terminal boxes to the switching sta-
tion must be executed by the customer with shielded connect-
ing cables.
2.3

Requirements of the EC Directives

Submersible motors are components subject to the EC "Ma-
chinery" Directive. This means that you may only put the motor
into operation if you
• have create a complete machine , e.g. through connection
with the driving pump,
• have fulfilled the safety requirements in the applicable EC
Directives,
• have certified compliance with the safety requirements by
means of an EC Declaration of Conformity,
• and have made this visible externally by applying the CE
mark.

3. Transport and storage

3.1

Transport

Risk of injury
• Pay attention to weight and centre of gravity.
• Only use suitable transport equipment and lifting
tackle with sufficient carrying capacity.
• Do not tilt the motor during transport.
• Do not move under suspended loads.
• Avoid tensile loads on connection cables and con-
trol cables.
• When chains and steel cables are used, there is a
danger of slipping.
When handling and transporting the motor, do not let it crash
into fixed objects!
3.2

Storage

Submersible motors require special storage conditions, be-
cause certain motor components cannot be manufactured of
corrosion-resistant materials due to technical constraints. Fail-
ure to observe these requirements will result in damage to the
motor. Subsequent proper functioning of the motor is depend-
ent on proper storage.
• As standard, motors are supplied in an unfilled state. If
this is the case, then the motor as soon as it is received
the motor must be filled with clean drinking water (not
distilled water)!
• Storage location : Dust-free, dry, protected against heat and
frost.
• Do not store the motor in direct sunlight or other heat sources.
Never let the motor be exposed to heat over 60 °C. Other-
wise the motor fluid may expand and thus escape. This would
result in damage to the motor later.
• If the motor is stored at temperatures below freezing, frost
protection is necessary. Contact the manufacturer about this.
Using incorrect, non-approved antifreezes may cause signifi-
cant damage to the motor.
• Store the motor in the vertical position (with the shaft end
upwards)
When storing the motor in the vertical position, make sure that
it cannot fall over.
• Turn the motor shaft monthly. Change the position of the shaft
relative to its previous state.