ZW32-12/630-20 12kV Intelligent Pole-Mounted Circuit Breaker
Features
Technical specifications
|
No. |
Item |
Unit |
ZW32-12/T630-20 |
ZW32-12/T630-20G |
|
|
1 |
Arc extinguishing chamber type |
- |
Vacuum |
Vacuum |
|
|
2 |
Insulating medium |
- |
Solid insulation |
Solid insulation |
|
|
3 |
Rated voltage |
kV |
12 |
12 |
|
|
4 |
Rated frequency |
Hz |
50 |
50 |
|
|
5 |
Rated current |
A |
630 |
630 |
|
|
6 |
Rated short-time withstand current |
kA |
20 |
20 |
|
|
7 |
Rated short-circuit breaking current |
kA |
20 |
20 |
|
|
8 |
Rated peak withstand current |
kA |
50 |
50 |
|
|
9 |
Rated short-circuit duration |
s |
4 |
4 |
|
|
10 |
Rated short-circuit breaking current breaking times |
Times |
≥30 |
≥30 |
|
|
11 |
Rated operating sequence (ratings should not be reduced for rated operating cycles) |
- |
O-0.3s-CO-180s-CO |
O-0.3s-CO-180s-CO |
|
|
12 |
Rated lightning impulse withstand voltage |
Phase-to-phase and phase-to-ground |
kV |
75 |
75 |
|
(1.2/50μs, peak value) |
Break |
kV |
85 |
85 |
|
|
13 |
Rated power frequency short-time withstand voltage (1min) |
Phase-to-phase and phase-to-ground |
kV |
42 |
42 |
|
Break |
kV |
48 |
48 |
||
|
14 |
Partial discharge of the whole machine (including current and voltage sensors and power supply module) |
Test voltage |
kV |
14.4 |
14.4 |
|
Partial discharge |
pC |
≤20 |
≤20 |
||
|
15 |
Main circuit resistance |
μΩ |
≤80 |
≤130 |
|
|
16 |
Mechanical stability |
Times |
≥10000 |
≥10000 |
|
|
17 |
Actuating mechanism type |
- |
Spring |
Spring |
|
|
18 |
Operation mode |
- |
Electric operation with manual opening/closing capabilities |
Electric operation with manual opening/closing capabilities |
|
|
19 |
Operating voltage |
V |
DC24 |
DC24 |
|
|
20 |
Switch closing time |
ms |
≤60 |
≤60 |
|
|
21 |
Switch opening time |
ms |
≤40 |
≤40 |
|
|
22 |
Opening and closing asynchronism |
ms |
≤2 |
≤2 |
|
|
23 |
Current sensor encapsulated in the pole |
Rated current ratio |
Phase sequence |
600A/1V |
600A/1V |
|
Zero sequence |
20A/0.2V |
20A/0.2V |
|||
|
Accuracy level |
Phase sequence |
Measurement Class 0.5s, Protection Class 5P10 |
Measurement Class 0.5s, Protection Class 5P10 |
||
|
Zero sequence |
Class 1, Protection Class 10P10 |
Class 1, Protection Class 10P10 |
|||
|
Temperature range |
℃ |
-40℃～70℃ |
-40℃～70℃ |
||
|
Implementation method |
- |
Low-power electromagnetic type |
Low-power electromagnetic type |
||
|
24 |
Voltage sensor encapsulated in the pole |
Rated voltage ratio |
Phase sequence |
（10kV/√3）/（3.25V/√3） |
（10kV/√3）/（3.25V/√3） |
|
Zero sequence |
（10kV/√3）/（6.5V/3） |
（10kV/√3）/（6.5V/3） |
|||
|
Accuracy level |
Phase sequence |
Class 0.5 |
Class 0.5 |
||
|
Zero sequence |
Class 1 |
Class 1 |
|||
|
Temperature range |
℃ |
-40℃～70℃ |
-40℃～70℃ |
||
|
Implementation method |
- |
Capacitive voltage division |
Capacitive voltage division |
||
|
Sampling method |
- |
Dual-side voltage acquisition (both source and load sides) |
Dual-side voltage acquisition (both source and load sides) |
||
|
25 |
Capacitive Power-taking Power Supply Encapsulated in the Pole |
Power supply method |
- |
Built-in capacitive power supply |
Built-in capacitive power supply |
|
Installation method |
- |
Integrated capacitive power supply cast into the insulation pole |
Integrated capacitive power supply cast into the insulation pole |
||
|
Single-phase rated output power |
W |
≥10±10% |
≥10±10% |
||
|
26 |
Remote and local lockout function |
- |
Optional |
≥10±10% |
|
|
27 |
Recloser enable/disable function |
- |
Optional |
≥10±10% |
|
|
28 |
Manual closing lockout |
- |
N/A |
N/A |
|
|
29 |
Switch enclosure protection level |
- |
≤IP67 |
≤IP67 |
|
|
30 |
Switch service life |
Year |
20 |
20 |
|