DEMA 400 Series User Manual

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4.3.1.4.1 Definite Time Protection and Reset Delays ( DMT )
DMT characteristic is used for obtaining constant trip and reset delays. There are no
parameters for the DMT characteristic other than the constant trip or reset delay.
Characteristic notation is as follows: e.g., t = DMT 0.25 s.
The image below shows the DMT characteristics for given current values.
DMT Characteristics

DEMA 400 Series Specifications

General

Brand	DEMA
Model	400 Series
Category	Relays
Language	English