Seg MRM3 Manuals

Seg MRM3 Manuals

Manuals and User Guides for Seg MRM3. We have 2 Seg MRM3 manuals available for free PDF download: Manual

Seg MRM3 Manual

Seg MRM3 Manual (70 pages)

MOTOR PROTECTION RELAY

Brand: Seg | Category: Relays | Size: 2 MB

Table of Contents

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Seg MRM3 Manual

Seg MRM3 Manual (46 pages)

Motor Protection Relay

Brand: Seg | Category: Relays | Size: 1 MB

Table of Contents

Table of Contents
2
Introduction and Application
4
Characteristics and Features
4
Design
5
Connections
5
Analog Inputs
6
Output Relays
6
Digital Inputs
6
Low/High Range of the Digital Inputs
6
Front Plate
7
Indicating Leds
7
Adjusting Leds
7
Analog Part
8
Digital Part
8
Working Principle
9
Start Recognition
9
Criteria for Blocking the Start
10
Thermal Image
12
Requirement on the Main Current
12
Transformers
12
Operation and Adjustments
13
Settting Procedure
14
System Parameters
14
Presentation of Measuring Values as
14
Primary Quantities on the Display
14
(I Prim Phase)
14
Rated -Frequency
14
Operating Hour Meter (H)
14
Number of Motor Starts (No.)
14
Parameter Set Changeover Switch (P2)
14
Protection Parameters
15
Thermal Overload Protection
15
B )
15
Heating Period Constant Τ W and
15
Cooling-Down Time Factor Τ C
15
T2X and T6X Minimal Trip Time During
15
Phase Undercurrent Element (I<)
15
Phase Overcurrent Element (I>)
15
Trip Characteristics for the Phase over
15
Current Element (I>+CHAR)
15
Reset Mode for the Trip Characteristics
16
Phase Short-Circuit Trip (I>>) and (I>>+Start)
16
Negative Phase Sequence
16
Earth Fault Element
16
Element (I E >+CHAR)
17
Reset Time for the Earth Fault Element
17
Tripping Time for the CB Failure-Protection (Cb+T>)
17
External Trip (Delayed) (Trip+T>)
17
Trip Blocking in Case of Excessive Phase
17
Start Supervision
17
Duration of a Start Cycle (No.+Start)
17
Number of Starts Per Cycle (No.+Start)
17
Start Blocking Time (Start+Block+T>)
18
Maximal Start Time (Start+T>)
18
Interface Parameters
18
Adjustment of the Slave-Address (RS)
18
Adjustment of the Baud-Rate
18
Adjustment of the Parity
18
Fault Recorder (FR)
18
Fault Recorder
18
Number of Fault Recordings
19
Adjustment of the Trigger Event
19
Pre-Trigger Time
19
Setting of the Clock
19
Additional Functions
20
Blocking of the Protective Functions
20
Allocation of the Reset Functions
21
Allocation of the Output Relays
22
Measuring Value and Fault Indications
23
Measuring Value Indications
23
Units of the Displayed Measuring Values
24
Indication of the Fault Data
24
Fault Memory
24
Reset
25
Erasure of the Fault Memory
25
Reset of the Thermal Memory
25
Digital Inputs
25
Parameter Set Changeover Switch
25
External Trigger of the Fault Recorder
25
Recognition of "Motor Running
25
Condition
25
Undelayed External Trip
25
Delayed External Trip
25

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