12kv outdoor VCB
AC three-phase, 50HZ
630A, 1250A
OEM & ODM,Complete equipment
CCC,ISO9001,CE, CB,IEC60898
ZW32-12 outdoor high-voltage pole vacuum circuit breaker is
suitable for three-phase AC 50Hz, rated voltage 12KV and below
power distribution system, mainly used for switching load current,
overload current and short-circuit current of switching lines, and
can also be used as agricultural The section switch of the power
grid and small power system is an upgraded product of the oil-free
transformation of urban power grids and rural power grids.
It has the characteristics of small size, light weight,
anti-condensation, maintenance-free, etc., and can adapt to lower
harsh weather conditions and dirty environments.
Features
- High reliability, high mechanical and electrical life;
- No maintenance;
- Small size, lightweight, easy to install;
- Standard relay protection and quick automatic reclosing function;
Standard
GB1984 "AC High Voltage Circuit Breaker"
GB11022 "Common technical requirements for high-voltage switchgear
and control equipment standards"
GB311.1-6 "Insulation coordination of high-voltage power
transmission and transformation equipment"
GB763 "The heating of AC high-voltage electrical appliances during
long-term work"
GB2706 "Test Method for Dynamic and Thermal Stability of AC High
Voltage Electrical Apparatus"
GB3309 "Mechanical Test of High Voltage Switchgear at Room
Temperature"
DL/T593 "Common ordering technical conditions for high-voltage
switchgear"
Normal service condition
Altitude | ≤1000m |
Ambient temperature | Max | +40℃ |
Min | -15℃ |
Ambient humidity: Maximum average humidity | 24 hour ≤95% |
1 month ≤90% |
Maximum water vapor pressure | 24 hours ≤2.2kpa |
1 month ≤1.8kpa |
The ambient air has no obvious pollution of dust smoke, corrosive
or combustible gases, steams or smog
12kv Outdoor VCB Technical Parameters
| No. | Items | Unit | Parameter |
| 1 | Rated voltage | KV | 12 |
| 2 | Rated current | A | 630 1250 |
| 3 | Rated frequency | Hz | 50/60 |
4 |
1 minute withstand pressure | Wet | KV | 34 |
| | Dry | | 42 |
| | To ground | | 49 |
5 | Lightning shock withstand current phase, to ground | KV |
75/85 |
| 6 | Rated short-circuit breaking current | KA | 20 25 |
| 7 | Rated short-circuit closing current | | 50 63 |
| 8 | Rated peak value of withstanding current | | 50 63 |
| 9 | 4s short-time withstand current | | 20 25 |
| 10 | Rated operating sequence | | O-0.3s-CO-180s-CO |
11 | Rated short circuit breaking current breaking times | times |
30 |
| 12 | Mechanical endurance | | 30000 |
| 13 | Permanent magnet control voltage | V | AC/DC 220 |
14 | Secondary circuit, 1-minute power frequency withstand voltage | KV |
2 |
Standard Drawing
