Dema 400 Series Manuals

Dema 400 Series Manuals

Manuals and User Guides for Dema 400 Series. We have 1 Dema 400 Series manual available for free PDF download: User Manual

Dema 400 Series User Manual

Dema 400 Series User Manual (118 pages)

DIRECTIONAL PROTECTION RELAY

Brand: Dema | Category: Relays | Size: 3.05 MB

Table of Contents

Table of Contents
2
1 Introduction

16
2 General Characteristics of 400 Series Relays

19
- General Features of 400 Series Relays
  19
3 Physical Properties of 400 Series Relays

20
- Power LED
  21
- Device Label
  22
- Circuit Diagram
  23
- Case Earthing Continuity Contact
  24
- Unit Terminal Blocks
  25
- Mounting Screws for the Cover
  26
4 Main Menu

27
- Informations
  28
- Input Monitoring
  30
- All Fundamental Measurements
  31
- All RMS Measurements
  32
- RMS Currents
  33
- Phase-Phase Voltages
  34
- Thermal Overload
  35
- Power Measurements
  36
- LED States
  37
- Instant Max Currents
  38
- Demand Measurements
  39
- Analog Ma Input
  40
- Protection and Reset Curves
  42
- IEC Inverse Time Protection Curves
  43
- IEC Thermal Overload Protection Curves
  45
- ANSI / IEEE Inverse Time Protection Curves
  47
- Custom Protection Curves
  48
- Definite Time Protection and Reset Delays ( DMT )
  51
- Inverse Definite Time Reset Curves ( IDMT )
  52
- Current Protection Settings
  53
- P – Phase Overcurrent Protection
  54
  - Protection
    55
  - Reset Delay
    56
  - Protection
    57
  - Start Value
    58
  - Reset Delay
    59
    
    Protection
    60
    
    Trip Θ
    61
    
    Alarm Θ
    62
    
    Protection
    63
  - Start Value
    64
  - Reset Delay
    65
  - Measurement Mode
    66
  - Protection
    67
  - Operate Delay
    68
  - Rtms
    69
  - Protection
    70
  - Start Value
    71
  - Negative Sequence Overcurrent Protection
    72
  - Protection
    73
  - Reset Delay
    74
    
    Over Voltage Protection
    75
    
    Protection
    76
    
    Hysteresis
    77
    
    Protection
    79
    
    Hysteresis
    80
  - Protection
    81
  - Hysteresis
    82
  - Protection
    83
  - Hysteresis
    84
  - U – under Frequency Protection
    85
  - Protection
    86
  - Hysteresis
    87
  - Protection
    88
  - Hysteresis
    89
  - Protection
    90
  - Operate Delay
    91
  - OP – Directional Active over Power
    92
  - Protection
    93
  - Direction Angle
    94
  - Protection
    95
  - Direction Angle
    96
  - Protection
    97
  - Start Value
    98
    
    Protection
    99
    
    Direction Angle
    100
  - N – Wattmetric Earth Protection
    101
    
    Protection
    102
    
    Hysteresis
    103
  - Number of Valid
    104
  - Cold Load Pickup
    105
  - System Settings
    106
  - Function Symbol
    107
  - Date-Time
    108
  - LCD Lighting Time
    109
  - Main Screen Measurement
    110
  - General Options
    111
  - Measurement Settings
    112
  - Time Synchronization
    113
  - Alarm Settings
    115
  - Communication Settings
    116
  - Recordings
    117
- Active Functions
  118

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