Ningbo Tianan (Group) Co.,Ltd.
Ningbo Tianan (Group) Co.,Ltd
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145kV Tested High Voltage AC Circuit Breaker SF6 Type With 3 Pole
Overview
LW36-145/T3150-40 HV AC SF6 circuit breaker is an outdoor product.It can also be used as a connection circuit breaker.
1. Altitudes : ≤ 2000m (product designs for 3000m are available)
2. Environment temperautere: -30ºC~+40ºC
3. Pollution grade: Class iV
Parameters
Table 1
| No. | Items | Unit | Parameters | |
| 1 | System nominal voltage | kV | 145 | |
| 2 | Rated voltage | kV | 132 | |
| 3 | Rated frequency | Hz | 50 | |
| 4 | Rated current | A | 3150 | |
| 5 | Rated short-circuit breaking current | kA | 31.5 | 40 |
| 6 | Rated short-circuit making current | kA | 80 | 100 |
| 7 | Rated short time withstand current/time | kA/s | 31.5/4 | 40/3 |
| 8 | Rated peak withstand current | kA | 80 | 100 |
| 9 | First-pole-to-clear factor | 1.5 | ||
| 10 | Lightning impulse withstand voltage | kV | 650 | |
| 11 | 1min power frequency withstand voltage | kV | 275 | |
| 12 | Creepage distance fracture/to earth | cm/kV | 250/250 | |
| 13 | Rated operation order | O-0.3s-CO -180s-CO | ||
| 14 | Making time | ms | ≤110 | |
| 15 | Breaking time | ms | ≤65 | |
| 16 | Closing-opening time | ms | ≤100 | |
| 17 | Closing non-simultaneity | ms | ≤5 | |
| 18 | Opening non-simultaneity | ms | ≤3 | |
| 19 | Fracture no of per pole | piece | 1 | |
| 20 | Mechanical endurance | time | 6000 | |
| 21 | SF6 gas pressure Rated value (20ºC) Alarm value The lowest function pressure | MPa MPa MPa | 0.55 0.50 0.45 | 0.60 0.55 0.50 |
| 22 | SF6 moisture content | ppm(V/V) | ≤150 | |
| 23 | SF6 yearly air leakage percentage | ≤1% | ||
| 24 | Per set circuit-breaker SF6 gas charging weight | kg | 9 | 11 |
| 25 | Gross weight of per set circuit-breaker | kg | 2200 | |
| 26 | Sub-static pull on wiring longitudinal terminal of circuit-breaker horizontal vertical | N N N | 1250 750 1000 | |
| 27 | Voltage of auxiliary circuit | V | AC220 | |
| 28 | Opening-closing coil rated voltage rated current | V A | DC220 or DC110 1.29 | |
| 29 | Energy Storage motor rated voltage rated power | V W | AC220 or DC 220 700 | |
| 30 | Energy storage time | s | ≤15 | |
| 31 | Heater voltage power | V W | AC220 100 | |
| 32 | Standards | GB1984 | ||
3.2 Mechanical parameters of circuit breaker
Table 2
| No. | Name | Unit | Parameters |
| 1 | Contact travel of moving-contact | mm | 38~42 |
| 2 | Main drive lever travel of mechanism | mm | 113~118 |
| 3 | Distance between opening movable and static contact | mm | 75~80 |
