|
Project/Data/Type
|
Unit
|
BD11-12/
1250-31.5
|
BD11-12/
1600-31.5
|
|
Rated operating voltage
|
KV
|
12
|
12
|
|
Rated frequency
|
Hz
|
50
|
50
|
|
Rated operating current
|
A
|
1250
|
1600
|
|
Rated short circuit breaking current
|
KA
|
31.5
|
31.5
|
|
Rated short circuit making current
|
KA
|
80
|
80
|
|
Rated peak withstand current
|
KA
|
80
|
80
|
|
Rated short time withstand current
|
KA
|
31.5
|
31.5
|
|
Rated duration of short circuit
|
S
|
4
|
4
|
|
Rated short circuit breaking times
|
time
|
30/50
|
30/50
|
|
Rated single capacitor bank breaking
current
|
A
|
630
|
630
|
|
1-min power-frequency withstand voltage
|
KV
|
42
|
42
|
|
Thunder and lightning impulse voltage
|
KV
|
75
|
75
|
|
Rated contact resistance under contact
pressure
|
¦Ì¦¸
|
¡Ü25
|
¡Ü25
|
|
Mechanical lifetime
|
time
|
10000
|
10000
|
|
Contact self-closed power
|
N
|
120¡À50
|
120¡À50
|
|
Contact opposite power under rated
stroke
|
N
|
200¡À50
|
200¡À50
|
|
Allowable abrasion thickness of contact
|
mm
|
3
|
3
|
|
Contact stroke
|
mm
|
11¡À1
|
11¡À1
|
|
Contact touching stroke
|
mm
|
3¡À1
|
3¡À1
|
|
Contact rated operating pressure
|
N
|
3100¡À200
|
3100¡À200
|
|
Average opening speed
|
m/s
|
1¡À1.03
|
1¡À1.03
|
|
Average closing speed
|
m/s
|
0.6¡À0.15
|
0.6¡À0.15
|
|
Allowable contact closing knock-on
time
|
ms
|
¡Ü2
|
¡Ü2
|
|
Three phases corresponding period
|
ms
|
¡Ü1
|
¡Ü1
|
|
Storage period
|
year
|
20
|
20
|
|
Outline dimension (¦µ¡Átotal length)
|
mm
|
ø110*303
|
ø110*303
|
|
Mass of movement part
|
kg
|
1.3
|
1.3
|
