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Time delay for star-delta (TDS) is a crucial component in electrical systems, primarily used in controlling the transition of three-phase induction motors from a star (wye) configuration to a delta configuration. This transition is essential for reducing inrush current during motor starting, minimizing mechanical stress on the system, and ensuring efficient operation.
TDS devices are designed to provide a time delay between switching the motor windings from star to delta, allowing the motor to reach a stable speed before the configuration change. This delay is typically adjustable, enabling precise tuning for specific motor and load requirements.
Properly configured TDS devices contribute to energy savings and reduce wear and tear on motors, making them an indispensable part of modern electrical systems.
Range of product | TeSys Deca |
---|---|
Product or component type | Contactor |
Device short name | LC1D |
Contactor application | Motor control
Resistive load |
utilisation category | AC-4 AC-3 AC-1 AC-3e |
[Ue] rated operational voltage | Power circuit: <= 690 V AC 25...400 Hz
Power circuit: <= 300 V DC |
[Ie] rated operational current |
9 A (at <60 °C) at <= 440 V AC AC-3 for power circuit
25 A (at <60 °C) at <= 440 V AC AC-1 for power circuit 9 A (at <60 °C) at <= 440 V AC AC-3e for power circuit |
[Uc] control circuit voltage | 220 V AC 50/60 Hz |
Motor power kW | 2.2 kW at 220...230 V AC 50/60 Hz (AC-3) |