Page 61 - Arc Guard System - TVOC-2

ABB ARC GUARD SYSTEM™ – TVOC-2 INSTALLATION AND MAINTENANCE GUIDE 61

8.3 Applications, Diagrams

8.3.1 Example 1

Example 1: Arc Guard System™ configured to trip all
contacts in case of an arc.

K4 K5

Trip Error

O 1 2 3 4 5 6 7 8
N

D4
SA.1 SA.2 SA.3
D2
1 1
A 4 0 4 / 0 0 A 0 A 4 0 4 / 0 0 A 0

6 6
A 250/250 A A 250/250 A

10 10
A 250/250 A A 250/250 A
14 14
(K5) E2N A 250/160 A A 250/160 A
Q2 1600A 18 250/160 A 18 250/160 A
A A
3 A V 22 A 250/160 A 22 A 250/160 A
D1 Cos
Wh
26 A 250/160 A 26 A 250/160 A

1175/1078 D3 1175/1078

(K4) 08
Q1

Table 2 Example 1. Applications, Diagrams
Connection Description
SA...SA3 Switchgear
K4, K5 Solid state tripping contacts
Q1, Q2, Q3 Circuit-breaker
D1...D4 Detectors