P&B MR952303 Manuals

Manuals and User Guides for P&B MR952303. We have 1 P&B MR952303 manual available for free PDF download: Manual

P&B MR952303 Manual

P&B MR952303 Manual (36 pages)

Digital Motor Protection Relay

Brand: P&B | Category: Relays | Size: 0 MB

Table of Contents

Table of Contents
2
1 Introduction

4
2 Application

5
3 Features and Characteristics

5
4 Design

6
- Circuit Diagrams
  6
5 Front Panel

8
- Alphanumeric Display
  8
  - Mode 2 Settings
    10
  - Fault Indication
    11
  - LED Indicators
    11
  - Push Buttons
    11
6 Working Principles

12
- Analogue Circuits
  12
- Digital Circuits
  12
7 Operation and Setting

13
- Layout of the Control Elements
  13
- Relay Display and Setting Procedure
  13
  - Display Mode(1)
    13
  - Setting Mode (2)
    13
- Setting Procedure
  15
  - T6X Setting
    15
  - Speed Switch
    15
  - Full Load Current Setting I FLC
    15
  - CT Primary Setting
    15
  - Hot/Cold Ratio Setting
    16
  - Thermal Overload Pre-Alarm Setting
    16
  - Number of Starts Per Hour
    16
  - Start Inhibit Time
    16
  - Earth Fault Current
    16
  - Earth Fault Trip Time
    17
  - Unbalance Current
    17
  - Undercurrent Setting
    18
  - Undercurrent Time
    18
  - High Set Overcurrent
    18
  - High Set Overcurrent Time
    18
  - Low Set Overcurrent
    18
  - Low Set Overcurrent Time
    18
  - Set Password
    18
  - Serial Link Address, Rsnn
    18
- Matrix Setting
  19
  - Trip Relay Matrix, Tnnn
    19
  - Programmable Relay Matrix, Pnnn
    19
  - Alarm Relay Matrix, Annn
    20
  - Earth Fault Parameters Matrix, Ennn
    20
  - Trip/ Reset Matrix, Rnnn
    21
  - Thermal O/L Matrix, Cnnn
    21
  - Speed Switch Matrix, Snnn
    22
  - Advanced Relay Matrix, Xnnn
    22
- Dip Switch Settings
  24
- Test Trip
  25
- Reset
  25
  - Hand Reset
    25
  - Auto-Reset at Power up
    25
- Phase Rotation
  25
- Setting Value Calculation
  25
8 Relay Case

26
- Individual Case
  26
- Rack Mounting
  26
- Terminal Connections
  26
9 Commissioning and Testing the Mpr3E5

26
- Commissioning
  26
- Testing
  27
10 Technical Data

30
- Measuring Input Circuits
  30
- Auxiliary Power Supply
  30
- Common Data
  30
- Tolerances
  31
- Output Contact Ratings
  33
- System Data
  33
- Housing
  34
- Connection Details
  35
11 Order Form

36

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