87b- 1, 87b- 2, 87b- 3 – Basler Electric BE1-87B User Manual
Page 21: Three phase 87b relay
Advertising
Figure 2-1. External AC Connections for Bus Protection
TO SURGE
GROUND
52-1
52-3
52-2
3
2
1
3
2
1
3
2
1
TO SURGE
GROUND
Single Phase
87B- 1
RELAY HOUSE
GROUND
TO SURGE
GROUND
D2853-3
5-26-99
86
5
6
7
86
5
6
7
86
5
6
7
Single Phase
87B- 2
Single Phase
87B- 3
86
86
86
Three Phase
87B Relay
1
2
3
4
5
6
7
N
1
2
3
Surge
Ground
9282300990 Rev P
BE1-87B Application
2-3
Advertising