ABB Switchsync F236 User Manual

Controlled Switching — Buyer´s Guide
G-4
Edition 2, 2006-09
Application Transmission Lines
Switching of Transmission Lines
Figure 5.
Overvoltages for different combinations of Switchsync™ controller and surge arresters (SA).
Three-pole reclosing of 550 kV, 200 km, uncompensated line after single-phase ground fault.
0
10 40
30
20
70
6050 100
90
80
1.00
2.50
2.00
1.50
3.00
4.50
4.00
3.50
Overvoltage (p.u.)
Distance in Percentage of Line Length (%)
No Control
L183
F236 and SA at Line Ends
Closing Resistors
Range of SIWL
used for line towers
Switchsync™ Selection-tree
Switching of Lines
*) Adaptation control requires precision auxiliary contacts
Start
Circuit Breaker
Operation
3-pole
1-pole
F236 (C) *)
CAT
Line Voltage
Disregarded
Yes
F236 (C) *)
L183 (C) *)
Compensated Line
No
No
Yes
Not
Possible
Shunt Reactor
Compensated
No
Series
Compensated
Not
Possible
Yes

ABB Switchsync F236 Specifications

General

Brand	ABB
Model	Switchsync F236
Category	Controller
Language	English