AEG THYRO-S Series Operating Instructions Manual page 4

The Thyristor switch may only be operated in the sense of its intended use, other-
wise hazards to persons (e.g. electric shocks, burns) and systems (e.g. overload)
may arise.
Residual hazards of the product
• Even in case of proper use, should a fault occur, it is possible that control of
currents, voltages and power is no longer performed in the load circuit by the
Thyristor switch.
In case of destruction of the power components (e.g break-down or high resi-
stance), the following situations are possible: power interruption, half-wave opera-
tion, continuous power flow. If such a situation occurs, then load voltages and cur-
rents are produced from the physical dimensions of the overall power circuit. It must
be ensured by system design that no uncontrolled large currents, voltages or power
occur.
Maloperation and its results
• With maloperation it is possible that power, voltage or flow levels which are hig-
her than planned reach the Thyristor switch or load. On principle, this can lead
to the Thyristor switch or load being damagad.
Transport
• Thyristor switches are only to be transported in their original packaging (protec-
tion against damage e.g. due to jolting, knocking, soiling).
Installation
• If the Thyristor switch is brought into the operation room from a cold environment,
moisture can occur. Prior to it being commissioned, the Thyristor switch must be
absolutely dry. Therefore, wait for a minimum of two hours before commissioning.
Connection
• Prior to connection, it must be ensured that the voltage information on the type
plate corresponds with the mains voltage.
• The electrical connection is carried out at the designated points with the required
cross section and the appropriate screw cross sections.
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