Installing The Pump Set In An Angled Position; Information On Electrical Connection; Operation With Star-Delta Contactor, Autotransformer And Starting Resistors - KSB UPA Installation & Operating Manual

5 Installation at Site
Fig. 16: Installing the pump set in a pressure shroud (example)
1
3

5.5 Installing the pump set in an angled position

ü The safety regulations have been observed. (ð Section 5.1, Page 25)
ü The pump set has been selected and approved for angled installation. See order
documentation.
1. Some structural adjustments are required to install submersible borehole pumps
2. Check the order documentation to verify the permitted installation position.

5.6 Information on electrical connection

Asynchronous motor
Pump sets with asynchronous motors by KSB must only be used for DOL starting.
During start-up and run-up the voltage must not fall below the value specified in the
order documentation. If this starting method is not permitted for the power supply
network used, starting devices to reduce starting currents must be provided (e.g. star-
delta contactors (Y-Δ), autotransformers, starting resistors, soft starters, etc).
Synchronous motor
Pump sets with synchronous motors must only be operated on a frequency inverter.
They must not be operated directly on the power supply network.
General information on the motor
Motor protection
Provide a temperature-compensated overcurrent relay of tripping class 10 or 10A as
motor protection. If an earth leakage relay is used, it must be fitted in the motor
circuit.
Rating
The rating specified on the name plate and in the order documentation applies to S1
continuous duty to DIN EN 60034-1.

5.6.1 Operation with star-delta contactor, autotransformer and starting resistors

Star-delta contactor The Y-phase or partial voltage period shall not exceed 4 s. The switchover interval
from Y to Δ must not be longer than 60 ms. Additional delays are not permitted.
Starting devices Set up the starting devices for automatic operation, i.e. switchover from partial to
full voltage must be automatic.
The partial voltage period shall not exceed 4 s. To operate the pump set with a
starting transformer or starting resistor, choose a closed-transition switchover
method (e.g. Korndorfer connection).
UPA / UPA S
1 3
Motor
Pressure shroud
in an angled position. To do so, observe the separate order documentation.
(ð Section 5.2.2, Page 27)
2
2 Pump
41 of 98