•
•
TABLE
OF
CONTENTS
1.
INTRODUCTION
1.1
Multilm Relay Features.
1.2 Typical Applications
1.3 Relay Selection.
1.4 Technical Specifications
2.
INSTALLATION
Page
1
1
2
4
2.1
Physical Dimensions. . 5
2.2 Option Selection. 6
2.3 Mounting. 8
2.4 External Connections. . 9
2.5 Power Supply. . . . . . . . . 9
2.6 Phase
CTs.
. .
...............................
12
2.7 Ground Fault
CT.
.
......
13
2.8 Main Relay Contacts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.9 Auxiliary Relay Contacts.. . . .
..................
13
2. 1 o External Reset. . . . . . . . . . . . .
..
13
2
.11
Emergency Restart. . . . . . . . . . . . . . . . . . . . . . .
14
2.12 Temperature Sensing Option. . . . . . . . . . . . .
......
14
2.13 Connecting The Thermal Capacity Meter.
......................
14
2.14 Connecting The Current Output Option. .
................
14
3. SETUP
AND
USE
3.1
Controls and Indicators. . .
......
16
3.2 Maximum Load Control. . . . . . . . . . . . . . . . . . . . . . . . .
..
17
3.3 Unbalance Control. . .
...........................
18
3.4 Start Timer. . . 19
3.5 Undercurrent Control. . . . . . . . . . . . .
..
20
UM-~
.
20
3.
7 Emergency Restart. . .
......
21
3.8 Run Curve Selection. . . . . . . . . . . . . . . . . . . . . . . . . .
21
3.9 Mechanical
Jam-Rapid
Trip....
. . . . . . . . .
..
22
3.10 Option Programming. .
...
23
3.11 Ground Fault . . . . . . . . . . . . .
.................
25
3.12 Overtemperature Option. . . . . . . . .
..
26
3.13 Thermal Capacity. . . . . . . . . . . . . . . .
...
28
3.14
4-20mA
Full Load Output. . . . . . . . . . . . . 28
3.15 Fault Diagnosis.. . . . . . . . . . . . . . . . . . . . .
.......
28
3.16 Control Power.. . .
...................
28
4.
RELAY TESTING
4.1
Secondary Injection Test Equipment. .
4.2 Commissioning Relay Tests.
4.3 Overloads.
4.4 Start Timer
....
4.5 Unbalance.
4.6 Undercurrent.
4.
7 Ground Fault
.............
.
4.8 Overtemperature Option.
4.9 Routine Maintenance Verification.
4.1
o Problem Troubleshooting.
5.
THEORY OF OPERATION
.
....................
30
. . 30
..
. .
.....
30
.
........
32
..
.................
32
....................
32
..
....
32
..
.......
33
.
..
33
.
................
34
...................
36
5.1
Block Diagram
..
5.2 Circuit Diagram.
5.3 Component Locator
...
.
......
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