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Huatuo groupKeep improving and focus on quality
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Huatuo groupKeep improving and focus on quality
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ZF12B-126(L) gas insulated metal-enclosed switchgear
Product Details
Product Summary
ZF12B-126 (L) type gas insulated metal enclosed switchgear is outdoor three-phase AC 50Hz high voltage transmission equipment, used in the rated voltage of 110 kV power system. Control, measurement, protection and switching of transmission lines.
ZF12B-126 (L) type gas-insulated metal-enclosed switchgear is composed of several standard functional modules, such as circuit breaker, three-position isolation-earthing combination switch, fast earthing switch, current transformer, voltage transformer, cable connecting device, outgoing bushing, zinc oxide arrester, bus bar and interval control cabinet, etc. These modules are connected together by finished flanges, the size of the connecting flanges of all modules is the same, so that various modules can be combined arbitrarily to meet various design and layout requirements of users.
Use of the environment
Installation place: outdoor, indoor;
Ambient temperature:-40°C ~ 40°C;
Sunshine intensity: 1000W/m2 (at noon on sunny days);
Altitude: not more than 2000m;
Air humidity: daily average not more than 95%, monthly average not more than 90%;
Wind speed: no more than 34 m/s;
Earthquake intensity: not more than 9 degrees;
External insulation pollution grade: grade III or IV.
Technical parameters
| Project | Unit | Parameters | ||
| Rated voltage | kV | 126 | ||
| Rated current | A | 2000/3150 | ||
| Rated frequency | Hz | 50 | ||
| Rated short-time power frequency tolerance | In addition | kV | 230 | |
| Voltage (Imin effective value) | fracture | kV | 230( 73) | |
| Rated lightning impulse withstand voltage | To the ground | kV | 550 | |
| (full wave 250/25003 peak) | fracture | kV | 550( 103) | |
| Rated short-time withstand current (effective value) | kA | 40 | ||
| Rated short circuit duration | s | 4 | ||
| Rated peak withstand current (peak) | kA | 100 | ||
| Annual leakage rate of SF6 gas | <0.3% | |||
| SF6 gas rated pressure (gauge pressure 20'C) | MPa | Circuit breaker (including CT) air chamber | Other | |
| 0.6 | 0.4 | |||
Key words:
ZF12B-126(L) gas insulated metal-enclosed switchgear
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