Protection I - ABB SACE Emax 2 Installation, Operation And Maintenance Instructions

Low voltage air circuit-breakers

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Protection I

The protection I protects against instantaneous short circuit.

When the activation threshold is exceeded, the protection trips within a fixed non-adjustable time.

Parameters

The user can set the intervention threshold.

Enable

Threshold I3

Parameter

Description

By setting the threshold dip-switches to the Off position, the protection is disabled.

It defines the current value that if exceeded activates the protection (in reference to

the curve, it is the part parallel to the ordinate).

IMPORTANT: The I3 threshold set must be higher than the I2 thresh-

old. An incorrect configuration returns an alarm signal.

ABB | SACE Emax 2

Ekip Dip protection release | 2 - Protections

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