ZW32 series outdoor high-voltage vacuum circuit breakers are outdoor high-voltage distribution devices with rated voltage of 12KV-36KV and three-phase AC of 50Hz.It is mainly used for opening and closing the load current, overload current, short circuit current in power...
Product Details
PRODUCTION INTRODUCTION
The product is composite with solid dielectric insulted pole, permanent magnetic actuating device or motor actuating device, control unit, current transformer and vacuum interrupter and voltage sensor. Except the control unit is a single device, the others are combined together, compact frame, flexible design, easy to operate.
Product Parameters
Items
Unit
ZW32-12/400
ZW32-12/630
ZW32-12/1250
Rated voltage
kV
12
Rated current
A
400
630
1250
Rated short circuit breaking current
kA
20/25
Rated short circuit making current (peak value)
50
Rated peak withstand current
50
Rated short circuit withstand current
50
Rated short circuit duration
S
4
Rated insulating level
1 minimum PF withstand voltage
Phase to phase, to ground 40, fracture 48
Lightning impolse withstand voltage peak value
phase to phase, to ground 75, fracture 85
Rated sequence of operations
O-0.3s-CO-180s-CO
Rated short circuit current breaking time
30
Mechanical endurance
10,000
Rated operation voltage (opening, closing coil)
V
DC220,110 AC220,110
Moving and fixed contact allowance wearing collation thickness
mm
3
Over-current release nominal current
5
Current transformer ratio
A
200/5,400/5 and 600/5
1 minimum second PF withstand voltage
mm
2
Over current tripping current
A
5
Rated single capacitor bank switching current
kA
630
Detail Functions:
+with Instantaneous over current protection, definite time over current protection and over current protection, over current,three-stage current protection, low voltage component block, composite voltage component block or direction component block is available for each section;
+with zero sequence over current protection, E/F, SEF, with directional model for selection;
+with Manual closed accelerating protection, the breaker will trip fast when it's closed in fault, and it will trip and lockout,close operation;
+with cold load protection;
+with hot-line-tag protection;
+with two stage negative sequence over current protection;
+with frequency protection and frequency slip protection;
+with over-voltage protection ;
+with under-voltage protection ;(optional)
+with residual voltage protection ;
+with frequency protection ;
+with relay for additional transformer protection high temperature input; (optional/definable)
+with relay for additional transformer protection heavy gas input ; (optional/definable)
+Event record, Real-time sync, Real time checking,