TeSys Active TeSys island – Digital Motor Management Solution – System, Installation, and Operation Guide PDF
DOCA0270EN-02

For utilisation categories AC-2 or AC-4

Selection according to required electrical durability, in categories AC-2 or AC-4 (Ue ≤ 440 V)

  • Control of 3-phase asynchronous squirrel cage motors (AC-4) or slip ring motors (AC-2) with breaking while the motor is stalled.

  • The current broken (Ic) in AC-2 is equal to 2.5 × Ie.

  • The current broken (Ic) in AC-4 is equal to 6 × Ie (Ie = rated operational current of the motor).

Example:

  • asynchronous motor with

    • P = 5.5 kW (7.4 hp) − Ue = 400 V − Ie = 11 A. Ic = 6 ×Ie = 66 A, or

    • P = 5.5 kW (7.4 hp) − Ue = 415 V − Ie = 11 A. Ic = 6 ×Ie = 66 A

  • 200,000 operating cycles required

  • The above selection curves show the starter rating needed: TPRS•025

Selection according to required electrical durability, use in category AC-4 (440 V < Ue ≤ 690 V)

  • Control of 3-phase asynchronous squirrel cage motors with breaking while the motor is stalled.

  • The current broken (Ic) in AC-2 is equal to 2.5 × Ie.

  • The current broken (Ic) in AC-4 is equal to 6 × Ie (Ie = rated operational current of the motor).
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