Page 6 - Catalog Softstarters PSR PSE PSTX

ABB softstarters

Improving industrial processes around the globe

1 A softstarter can do wonders with your operations. Packed with useful features, it
reduces the wear of your equipment, improve the reliability of your processes and
increase overall productivity.

Controlling pumps Controlling fans

Eliminating water hammering with torque control Soft starting adjusted to application
Water hammering is a common problem with pumps. It Fans normally have a high moment of inertia, which makes
typically results in a lot on wear of pipes and valves when starting tough and current high. Using an ABB softstarter, the
stopping the pump. The ABB softstarter feature torque control voltage is increased gradually during start, which reduces the
stop eliminates water hammering and prolongs the lifetime of current and removes the inrush peak. It is possible to adjust
the system, while reducing pump downtime. the settings to fit almost any starting condition, from unloaded
to fully loaded.
Keep pipes and pumps clean
Many pumps risk getting clogged over time. This will cause Fast stops with motor braking
reduced flow and increased risk of pump damage. Thanks to It can also take a long time to stop the fan. Active braking
the feature to reverse the direction of the flow and start again using the dynamic brake feature reduces stopping times. This
with kick-start, ABB softstarters can help prevent and solve improves process safety when the load has a high moment of
pump clogging and associated downtime. intertia and makes fan operation easier for the operator.

Avoid running dry with underload protection Avoid unwanted movements with stand still brake
Damages due to pumps running dry can be avoided with the An idle fan that is rotating backwards, due to wind or airflow
softstarter feature underload protection. It stops the motor from another fan, can be kept still using the stand still brake.
which saves the pump from additional wear and contributes It prevents unwanted airflow and improves the control of the
to prolonging its lifetime. system without the need for an external mechanical brake.

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