5 Installation at Site
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Vitastage
exceeding any given limits always observe the EMC information provided by the
inverter manufacturer. If the inverter manufacturer recommends a shielded power
cable, make sure to use a submersible motor pump with shielded power cables.
Interference immunity
The submersible motor pump generally meets interference immunity requirements.
For monitoring the sensors installed the operator must ensure sufficient interference
immunity by appropriately selecting and laying the power cables in the plant. No
modifications are required on the power/control cable of the submersible motor
pump. Suitable analysing devices must be selected. To monitor the leakage sensor
inside the motor using a special relay available from
KSB
is recommended.
5.6 Electrical connection
DANGER
Electrical connection work by unqualified personnel
Danger of death from electric shock!
▷
Always have the electrical connections installed by a trained and qualified
electrician.
▷
Observe regulations IEC 60364.
WARNING
Incorrect connection to the mains
Damage to the mains network, short circuit!
▷
Observe the technical specifications of the local energy supply companies.
1.
Check the available mains voltage against the data on the name plate.
2.
Select an appropriate start-up method.
NOTE
A motor protection device is recommended.
5.6.1 Setting the time relay
CAUTION
Switchover between star and delta on three-phase motors with star-delta starting
takes too long.
Damage to the pump (set)!
▷
Keep switch-over intervals between star and delta as short as possible.
Table 8:
Time relay settings for star-delta starting:
Motor rating
Y time to be set
≤ 30 kW
< 3 s
5.6.2 Connecting the motor
NOTE
In compliance with IEC 60034-8, three-phase motors are always wired for clockwise
rotation (looking at the motor shaft stub).
The pump's direction of rotation is indicated by an arrow on the pump.
1.
Match the motor's direction of rotation to that of the pump.
2.
Observe the manufacturer's product literature supplied with the motor.
Summary of Contents for Vitastage
Page 1: ...Hygienic Pump Vitastage Installation Operating Manual ...
Page 43: ......
