DEMA 400 Series User Manual

90
-1
I_PFRC_1
(df/dt)>
81R-I-1
-2
I_PFRC_2
(df/dt)>>
81R-I-2
-3
I_PFRC_3
(df/dt)>>>
81R-I-3
-4
I_PFRC_4
(df/dt)>>>>
81R-I-4
-5
I_PFRC_5
(df/dt)>>>>>
81R-I-5
-6
I_PFRC_6
(df/dt)>>>>>>
81R-I-6
Rate of Change of Frequency Protection Function Symbols
The menu view is as follows. The menu consists of four lines.
Rate of Change of Frequency Protection Display
4.3.4.3.1 Protection

activated in the active state and disabled in the passive state.
4.3.4.3.2 Start Value
It is the screen where the Rate of Change of Frequency Protection is set when the protection is
active. Selection is made (+10  -10) Hz/s range.

DEMA 400 Series Specifications

General

Brand	DEMA
Model	400 Series
Category	Relays
Language	English