C&S MRN3 Manuals

Manuals and User Guides for C&S MRN3. We have 1 C&S MRN3 manual available for free PDF download: Manual

C&S MRN3 Manual

C&S MRN3 Manual (28 pages)

High-Tech Range Mains decoupling Relay

Brand: C&S | Category: Relays | Size: 0 MB

Table of Contents

Table of Contents
2
Introduction and Application
3
Features and Characteristics
3
Design
4
Connections
4
Analog Input Circuits
4
Output Relays
4
Fault Recorder
5
Parameter Settings
5
Leds
6
Front Plate
6
Working Principle
6
Analog Circuits
6
Digital Circuits
6
Voltage Supervision
6
Selection of Star or Delta Connection
7
Principle of Frequency Supervision
7
Measuring of Frequency Gradient (MRN3-2) (MRN3-2)
7
Vector Surge Supervision (MRN3-1) (MRN3-1)
8
Measuring Principle of Vector Surge
8
Voltage Threshold Value for Frequency
10
Blocking Function
10
Operation and Settings
11
Display
11
Setting Procedure
12
Systemparameter
12
Display of Residual Voltage U
12
Prim Sec
12
Setting of Nominal Frequency
12
Display of the Activation Storage (FLSH/ NOFL)
13
Parameterswitch / External Trigger for the Fault Recorder
13
Protection Parameters
13
Parameter Setting of Over-And Undervoltage Supervision
13
Number of Measuring Repetitions (T) for
14
Threshold of Frequency Supervision
14
Tripping Delays for the Frequency Elements
14
Parameter Setting of Vector Surge
14
Supervision
14
Parameter Setting of Frequency Gradient
15
Voltage Threshold Value for Frequency and Vector Surge Measuring
15
Adjustment of the Slave Address
15
Setting of Baud-Rate (Applies for Modbus Protocol Only)
15
Setting of Parity
15
Adjustment of the Fault Recorder
15
Number of the Fault Recordings
15
Adjustment of Trigger Occurences
15
Pre-Trigger Time
15
Adjustment of the Clock
16
Additional Functions
16
Setting Procedure for Blocking the Protection Functions
16
Indication of Measuring Values
17
Measuring Indication
17
Min./Max. Values
17
Unit of the Measuring Values Displayed
18
Indication of Fault Data
18
Fault Memory
18
Reset
18
Erasure of Fault Storage
18
Relay Testing and Commissioning
19
Power-On
19
Testing the Output Relays
19
Checking the Set Values
19
Secondary Injection Test
19
Test Equipment
19
Example of Test Circuit
20
Checking the Input Circuits and Measuring Functions
20
Checking the Operating and Resetting Values
21
Of the Over/Undervoltage Functions
21
Checking the Relay Operating Time of the
21
Checking the Vector Surge Function
21
Checking the External Blocking and Reset
22
Primary Injection Test
22
Maintenance
22
Technical Data
23
Measuring Input Circuits
23
Common Data
23
Setting Ranges and Steps
24
Interface Parameter
25
Parameters for the Fault Recorder
25
Output Relays
25
Order Form
25

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