3
1 Contents
1
Contents
2
General
7
2.1
Introduction
7
2.1.1
Arrangement of the Operating Instructions
7
2.1.2
Communication by Means of the Operating Instructions
7
2.2
Safety Instructions
8
3
Description
11
3.1
Technical Data
11
3.1.1
Standards, Regulations
11
3.1.2
Operating Temperatures
11
3.1.3
Insulation Rating
12
3.1.4
Electrical Data
12
3.1.5
Operating Times
13
3.1.6
Arc Quenching Medium SF
6
14
3.1.7
Auxiliary Switch
14
3.1.8
Anti-Condensation Heaters
15
3.1.9
Reference Contact IK-3
15
3.1.10 Further Technical Data
15
3.2
Circuit-Breaker
16
3.3
Pole Column
18
3.4
Interrupter Unit
20
3.5
Arc Quenching
22
3.6
Spring Drive Mechanism of the Circuit- Breaker
24
3.6.1
Charging the Closing Spring
24
3.6.2
Closing
24
3.6.3
Opening
25
3.6.4
Operating Sequence
25
3.7
Function of the Spring Drive Mechanism
26
3.7.1
Charging the Closing Spring
26
3.7.2
Closing
29
3.7.3
Tripping
34
3.8
Control
35
3.8.1
Spring Winding Mechanism
36
3.8.2
Gas Monitoring
36
3.8.3
Lockouts
39
3.8.4
Motor Control
39
3.8.5
Anti-Condensation Heaters
39
3.8.6
Signals
39
3.8.7
Free Auxiliary Switch Contacts
40
3.8.8
Operating Cycle Counter
40
3.9
Reference Contact IK-3
41
3.9.1
Introduction
41
