DOCA0265EN-07

Protection Menu

Description

The Protection menu contains the following submenus:

Level 1

Level 2

Level 3

Function description

Tree navigation menu

Protection

Standard Protection

Display standard protection settings.

ERMS Protection

Display ERMS protection settings.

Neutral Protection(1)

Display neutral protection settings.

Advanced Protection

Settings of advanced protection functions.

(1) Applies to 4 pole circuit breakers and 3 pole circuit breakers with ENCT option.

Active Settings

The active settings used by the standard protection functions are displayed in the Quick View screens and LSIG home screen:

  • If the screens have a black background, it indicates that standard protection settings are being used.

  • If the screens have a blue background, it indicates that ERMS protection settings are being used.

The settings in the Protection menu are the settings defined by using the Standard Protection Setting Procedure or EcoStruxure Power Commission software. They may differ from the settings used by the protection functions when fallback settings are active.

Standard Protection

The Standard Protection menu displays the standard protection settings which are used when ERMS is not engaged. It is not possible to set the protection settings from this menu.

Level 3

Level 4

Parameter name

Standard Protection

L

Standard long-time overcurrent protection

S

Standard short-time overcurrent protection

I

Standard instantaneous overcurrent protection

G

Standard ground-fault protection

To set standard protection functions, see:

ERMS Protection

The ERMS Protection menu displays the standard protection settings which are used when ERMS is engaged. It is not possible to set the protection settings from this menu.

Level 3

Level 4

Parameter name

ERMS Protection

L

ERMS long-time overcurrent protection

S

ERMS short-time overcurrent protection

I

ERMS instantaneous overcurrent protection

G

ERMS ground-fault protection

Neutral Protection

The Neutral Protection menu displays the neutral protection settings. It is not possible to set the protection settings from this menu.

Level 3

Level 4

Parameter name

Neutral Protection(1)

Nb poles

Number of poles 3P or 4P, for display only.

Ir (A)

Ir long-time overcurrent protection threshold expressed in Amps, for display only.

Protection

Set neutral protection type:

  • OFF

  • N/2 (factory setting)

  • N

  • OSN

IN (A)

RMS current on neutral, for display only.

(1) Applies to 4-pole circuit breakers and 3-pole circuit breakers with ENCT option.

To set neutral protection functions, see Neutral Protection.

Advanced Protection

The Advanced Protection menu displays the protection settings for undervoltage and overvoltage protection. The protection settings can be set from this menu.

Level 3

Level 4

Level 5

Parameter name

Advanced Protection

Undervoltage

Activation

Disable, or enable and configure the undervoltage protection mode:

  • OFF (factory setting)

  • Per phase

  • All phases

  • Both

Action

Select the action to take when undervoltage protection is activated:

  • Trip

  • Alarm (factory setting)

Type

Select the type of voltage to monitor:

  • VLL, phase-to-phase voltages (factory setting)

  • VLN, phase-to-neutral voltages

Vmin

Threshold of undervoltage protection

tVmin

Time delay of undervoltage protection

Overvoltage

Activation

Disable, or enable and configure the overvoltage protection mode:

  • OFF (factory setting)

  • Per phase

  • All phases

  • Both

Action

Select the action to take when overvoltage protection is activated:

  • Trip

  • Alarm (factory setting)

Type

Select the type of voltage to monitor:

  • VLL, phase-to-phase voltages (factory setting)

  • VLN, phase-to-neutral voltages

Vmax

Threshold of overvoltage protection

tVmax

Time delay of overvoltage protection

To set advanced protection functions, see:

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