Protections Check; Considerations; Configuration Of The Protections - Deif Multi-line 2 General Manuallines For Commissioning

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Multi-line 2

As a part of the commissioning, the protections should be checked.

The following points must be considered for each alarm:

•

Alarm set point.

•

Alarm delay.

•

Relay output.

•

Activation.

•

Fail class.

For further information about the above-mentioned, see the Designer's

Reference Handbook.

Several issues must be taken into consideration when configuring the alarms. These are e.g.

national rules and requirements, additionally installed protection equipment, required use of the

protections (trip of non-essential load, breaker tripping and engine stopping). The switchboard

manufacturer and the end customer must take these considerations.

The dialogue box shows a typical alarm.

In the 'commissioning' field above, the horizontal line indicates the elapsed time

since the alarm set point was exceeded. In this example, the generator low

voltage set point is 95%. If the commissioning is done without the PC utility

software, then the timers can be seen in the service menu 4980/9120.

DEIF A/S

7. Protections check

General Guidelines for Commissioning

Page 15 of 19

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