Load Break Switch, FN12-35

FUNCTION

Rated Voltage 35kV

Maximum service voltage 40.5kV

Withstand voltage to earth and between poles 70kV

Withstand voltage across the isolating distance 80kV

Impulse withstand voltage to earth and between poles 170kV

Impluse withstand voltage across the isolating distance 195kV

Rated current 400A 630A

Breaking capacity for active circuits(cosØ0.7) 400A 630A

Breaking capacity for no-load transformers 16A

Breaking capacity for no-load line and cables 16A

Short-time current 12.5kA/1sec.

Making capacity 25kA

STRUCTURE

1) Frame

2) Upper insulator

3) Upper fixed arcing contact

4) Lower insulator

5) Main shaft

6) Earthing blades

7) Fuse holder

8) Fuse

Overall and dimension

A=400

B=515

C=1025

D=495

E=449

F=555

G=890

H=1040

I=500

J=254

K=67

L=1080

N=50

O=172

P=256

Q=368

R=90

S=100

T=105

U=94

V=105

W=682

2013-01-05