Alarms

Presentation

TS trip system generates the following alarms:

• Overload alarm

• Ground-fault alarm

• Current unbalance alarm

Overload Alarm

The overload alarm is available on TS 2.0S, 5.0S, and 6.0S trip system.

The overload alarm is detected when the load current is above 90% of Ir, the long-time overcurrent protection pickup.

Ground-Fault Alarm

The ground-fault alarm is available on TS 6.0S trip system. As the ground-fault protection, the ground-fault alarm is based either on the summation of the phases and neutral current or on the signal delivered by an external sensor or an external neutral current transformer (ENCT).

The ground-fault alarm is detected when the ground-fault current is above the ground-fault alarm threshold:

• Setting range: 0.2-1 x In, in step of 1 A

• Factory setting: 0.2 x In

The ground-fault alarm threshold can be set with EcoStruxure Power Commission software (password-protected). The setting can be read by EcoStruxure Power Commission software, and EcoStruxure Power Device app .

The modification of the ground-fault alarm threshold generates the Configuration change event.

Current Unbalance Alarm

The current unbalance alarm is available on TS 2.0S, 5.0S, and 6.0S trip system.

The current unbalance alarm is detected when the current unbalance is above 50% of the average current, arithmetic mean of the 3 phase currents.

Predefined Events

The function generates the following predefined events:

Predefined events cannot be modified by the user. For general information about events, refer to Event Management.

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