DEMA 400 Series User Manual

3
3.29 Lock Button ...................................................................................................................... 25
3.30 Mounting Screws for the Cover ....................................................................................... 26
3.31 Terminal Plugs ................................................................................................................. 26
3.32 Lock Pivot ........................................................................................................................ 26
3.33 Mounting Holes ................................................................................................................ 26
4. Main Menu ............................................................................................................... 27
4.1 Informations ........................................................................................................ 28
4.2 Measurements ..................................................................................................... 28
4.2.1 Input Monitoring ------------------------------------------------------------------------- 30
4.2.2 Output Relay Monitoring ---------------------------------------------------------------- 30
4.2.3 All Fundamental Measurements ------------------------------------------------------- 31
4.2.4 All RMS Measurements ----------------------------------------------------------------- 32
4.2.5 RMS Currents ---------------------------------------------------------------------------- 33
4.2.6 Phase-Neutral Voltages ----------------------------------------------------------------- 33
4.2.7 Phase-Phase Voltages ------------------------------------------------------------------- 34
4.2.8 I
0
- I
1
- I
2
----------------------------------------------------------------------------------- 34
4.2.9 V
0
- V
1
- V
2
-------------------------------------------------------------------------------- 35
4.2.10 Thermal Overload ------------------------------------------------------------------------ 35
4.2.11 Power Measurements -------------------------------------------------------------------- 36
4.2.12 LED States -------------------------------------------------------------------------------- 37
4.2.13 Current Breaker Monitoring ------------------------------------------------------------ 37
4.2.14 Instant Max Currents --------------------------------------------------------------------- 38
4.2.15 Demand Measurements ----------------------------------------------------------------- 39
4.2.16 Energy ------------------------------------------------------------------------------------- 39
4.2.17 Analog mA Input ------------------------------------------------------------------------ 40
4.3 Protection Settings ............................................................................................. 40
4.3.1 Protection and Reset Curves ----------------------------------------------------------- 42
4.3.1.1 IEC Inverse Time Protection Curves ...................................................................... 43
4.3.1.2 IEC Thermal Overload Protection Curves ............................................................... 45
4.3.1.3 ANSI / IEEE Inverse Time Protection Curves ........................................................ 47
4.3.1.4 Custom Protection Curves ....................................................................................... 48
4.3.1.4.1 Definite Time Protection and Reset Delays ( DMT ) ............................. 51
4.3.1.4.2 Inverse Definite Time Reset Curves ( IDMT ) ...................................... 52
4.3.2 Current Protection Settings ------------------------------------------------------------- 53
4.3.2.1 50/51P  Phase Overcurrent Protection ................................................................... 54

DEMA 400 Series Specifications

General

Brand	DEMA
Model	400 Series
Category	Relays
Language	English