Description
GENERALZw32-12y series outdoor high-voltage AC prepaid metering vacuum circuit breaker (hereinafter referred to as "prepaid circuit breaker") is an outdoor high-voltage distribution switchgear with a rated voltage of 12kV and three-phase AC 50Hz. According to the user's requirements, the high-voltage metering box of the prepaid circuit breaker can be a three-phase three-wire system (V / V wiring) or a three-phase West wire system (Y / y.no wiring). The metering current transformer can be a single transformer with a ratio range of (2.5 ~ 1200) / 5
The prepayment circuit breaker body and the high-voltage metering box are designed in an integrated manner. The control box is composed of the prepayment meter and the high-voltage circuit breaker control circuit. It can be installed with a prepayment meter for prepayment measurement according to the user's requirements, and it can also be installed with a YDG power consumption management terminal. The circuit breaker can be directly controlled by the background, and real-time shop parameters and switch status can be queried.
Prepaid circuit breakers comply with GB / T 1984-2014 high voltage AC circuit breakers, DL / T 402-2016 voltage AC circuit breakers, DL / T 403-2000 technical conditions for ordering 12kV ~ 40.5kV high voltage vacuum circuit breakers, and GB / T 20840.2-2014 transformer part 2: supplementary technical requirements for current transformers, GB / T 20840.3-2014 transformer part 3: supplementary technical requirements for electromagnetic voltage transformer and DL / T 403-2013 distribution automation remote terminal and other technical standards.
MODEL DESCRIPTIONUSAGE: ENVIRONMENTAL CONDITION- Altitude: ≤ 1000m, If the altitude is higher than 1000m, the rated insulation level shall be corrected accordingly.
- Ambient temperature: -40oC ~ +45oC,
- Maximum daily temperature difference: 25K
- Humidity: Average daily relative humidity: 95%, average monthly relative humidity: 90%.
- Sunshine intensity (at wind speed of 0.5 m / s): not more than 0.1W/cm2
- Wind Speed: 34m/s
- Wind pressure: 700Pa
- Pollution level: e - level
- Icing thickness: Not more than 10mm
- Resistance to floor drain: horizontal acceleration 0.3g, vertical acceleration 0.2g
MAIN ADVANTAGES
1. The overall structure is a three-phase pillar type, with good sealing performance, good moisture-proof and anti-condensation performance;
2. The shell (box) is made of SUS304 non-magnetic stainless steel, which is precision welded and polished by an imported arc welding machine, with a beautiful appearance and never rusts;
3. The integrated design of the high-voltage metering box and the switch body is simple and convenient for installation, and maintenance free and long service life;
4. The price operating mechanism has a novel design, simple structure, reliable action, and small volume;
5. It can realize the functions of three-stage protection, reclosing, remote communication, metering, and prepayment.
MAIN TECHNICAL PARAMETERS | No. | Item | Unit | Data |
| 1 | Rated frequency | Hz | 50 |
| 2 | Rated voltage | kV | 12 |
| 3 | Rated current | A | 630 / 1250 |
| 4 |
Rated short-time power frequency withstand voltage | Interphase, to earth(wet) | kV/min | 34/1 |
| Interphase, to earth(dry) | 42/1 |
| Fracture (dry) | 48/1 |
| Secondary circuit to earth | 2/1 |
| 5 | Rated lightning impulse withstand voltage | Interphase, to earth | kV | 75 |
| Fracture | 85 |
| 6 | Rated short-time withstand current and duration | kA/s | 20/4 25/4 |
| 7 | Rated Short-circuit breaking current(Effective value) | kA | 20 / 25 |
| 8 | Rated short-circuit making current(peak) | 50 / 63 |
| 9 | Rated Peak-withstand current | 50 / 63 |
| 10 | Main circuit resistance | Without Isolation Switch | μΩ | not less than 80 |
| With Isolation Switch | not less than 120 |
| 11 | Rated Short-circuit breaking current breaking times | Times | 30 |
| 12 | Rated operating voltage and Rated Voltage for auxiliary(control) circuit | V | AC/DC220
DC48, DC24 |
| 13 | Mechanical life | Times | 10000 |
| Note: If the altitude is over 1000m, the rated insulation level should be modified as appropriate. |
OUTLINE AND INSTALLATION DIMENSION
Complaint
