LW36-126 HIGH VOLTAGE SULFUR HEXAFLUORIDE CIRCUIT BREAKER
Product Overview
LW36-126 is outdoor high voltage sulfur hexafluoride circuit breaker, which is suitable for AC 50 Hz、 rated voltage 126 kV power system, as power system control and protection equipment, it can also be used as contact circuit breaker. Arc extinguishing chamber is a single-column single-cut structure of each pole, which adopts the principle of self-energy arc extinguishing, and is equipped with CT motor energy storage spring operating mechanism and three-pole mechanical linkage.
Products meet GB1984-2003 and IEC62271 -100 standards
Working Environment
1. Altitude: no more than 3000 m;
2. Ambient temperature :-30~40;
3. Wind speed :34 m/s;
4. Filth grade: III grade (25 mm/kV).
Main Technical Parameters
| No. | Item | Unit | Data |
| 1 | Rated voltage | kV | 126 |
| 2 | Rated frequency | Hz | 50 |
| 3 | Rated current | A | 3150 |
| 4 | Isc Rated short-circuit breaking current Isc | kA | 40 |
| 5 | Rated short time withstand current / duration | kA/s | 40/3 |
| No. | Item | Unit | Data | |
| 1 | Rated peak withstand current | kA | 100 | |
| 2 | Rated short circuit switching current | kA | 100 | |
| 3 | Near fault breaking current | kA | 1sc×90%;1sc×75% | |
| 4 | Rated out-of-step breaking current | kA | 10 | |
| 5 | First-pole-to-clear factor | 1.5 | ||
| 6 | 1min power frequency withstand voltage(effective value) | To earth | kV | 230 |
| Fracture | kV | 230 | ||
| 7 | Lightning impulse withstand voltage (peak) | To earth | kV | 550 |
| Fracture | kV | 550 | ||
| 8 | Rated line charging switching current | A | 50 | |
| 9 | Rated operation sequence | O-0.3s-CO-180s-CO | ||
| 10 | Rated SF6 gas pressure (20) | MPa | 0.60 | |
| 11 | Electrical life | Time | 16 | |
| 12 | Mechanical life | Time | 6000/10000 | |
Appearance And Installation Dimensions
