ZW10-12XDG Series Outdoor High Voltage Dual Power Switch Device
Technical specification
|
No. |
Item |
Units |
Parameters |
|
|
1 |
Rated voltage |
kV |
12 |
|
|
2 |
Max. operating voltage |
kV |
12 |
|
|
3 |
Rated current |
A |
630 |
|
|
4 |
Rated short-circuit load breaking current |
kA |
20 |
|
|
5 |
Rated short-circuit closing current(peak) |
kA |
50 |
|
|
6 |
Rated peak withstand current |
kA |
50 |
|
|
7 |
Rated short-time 1min. withstand current |
kA |
20 |
|
|
8 |
Rated insulation level |
1min PF withstand voltage(Dry type) |
kV |
42 |
|
Lightening impulse withstand voltage(peak) |
75 |
|||
|
9 |
Rated operating sequence |
|
O-0.3s-CO-180s-CO |
|
|
10 |
Mechanical life |
Times |
10000 |
|
|
11 |
Off/On times of rated short-circuit breaking current |
Times |
30 |
|
|
12 |
Operator mechanism rated closing voltage |
V |
220 |
|
|
13 |
Operator mechanism rated opening voltage |
V |
220 |
|
|
14 |
Clearance between open contacts |
mm |
9±1 |
|
|
15 |
Over-travel |
mm |
3±0.5 |
|
|
16 |
Three phase opening, closing not synchronism |
ms |
≤2 |
|
|
17 |
Contact closing bounce time |
ms |
≤2 |
|
|
18 |
Average opening speed |
m/s |
1.0+0.2 |
|
|
19 |
Average closing speed |
m/s |
0.7±0.15 |
|
|
20 |
Closing time |
Max. operating voltage |
s |
0.015-0.05 |
|
Min. operating voltage |
0.03-0.06 |
|||
|
21 |
Closing time |
s |
0.025-0.05 |
|
|
22 |
The main loop resistance for each phase |
uΩ |
≤180 |
|
|
23 |
Dynamic and static contact erosion limit |
mm |
3 |
|
Product Model
Product Functions
◆Automatic Power Source Switching: Automatically transfers load from failed primary power to standby power during outages or under-voltage conditions, ensuring supply continuity.
◆Dual Power Supply Control: Manages switching between two independent 12kV power sources based on availability and load requirements.
◆Short-Circuit & Overcurrent Protection: Provides comprehensive fault protection to prevent damage to downstream equipment during electrical faults.
◆Manual Switching Capability: Allows operator-controlled switching between power sources when automatic operation is not required.
◆Complete Source Isolation: Ensures two-way high voltage power supply is completely isolated during switching, preventing backfeed and cross-connection hazards.
Applicable Environment
◇Rated System: Suitable for 12kV, 50/60Hz AC dual power supply systems up to 630A.
◇Installation Type: Outdoor installation for critical infrastructure and industrial applications.
◇Industry Applications: Widely used in oil fields, mines, metallurgy, chemical plants, railways, communications, and industrial facilities.
◇Distribution Lines: Suitable for 10kV distribution lines in industrial and commercial settings.
Product Highlights
◆Intelligent Dual Power Switching: Advanced controller detects power failure or under-voltage and automatically transfers to standby supply, ensuring continuous power for critical loads without manual intervention.
◆Complete Source Isolation: Mechanical and electric interlocking ensures two-way high voltage supplies are completely isolated, preventing dangerous paralleling or backfeed.
◆Comprehensive Protection: Integrated short-circuit and overcurrent protection avoids unnecessary outage impacts, extending equipment life and improving reliability.
◆High Safety & Reliability: Multiple interlock systems provide exceptional safety, ideal for applications with stringent power continuity and operator protection requirements.
◆Advanced Automation: New generation design combines high automation with wide applicability, representing advanced dual power switch technology.
◆Prevents Unnecessary Outages: Intelligent switching logic coordinates transfer with fault conditions and load requirements to avoid unnecessary power interruptions.