outdoor circuit breaker
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Quality/Safety Certification: 0.00
This circuit breaker has good qualities with long electrical life
easy installation and debugging
convenient maintenance
| LW36-55 outdoor high voltage AC SF6 circuit breaker | |||
| Name | Unit | Value | |
| Rated voltage | kV | 55 | |
| Rated power frequency withstand voltage(1min) | To earth | kV | K·140 |
| Between interrupter | K·140 | ||
| Rated thunder impulse withstand voltage | To earth | K·325 | |
| Between interrupter | K·325 | ||
| Powerfrequency withstand voltage under zero gauge pressure of SF6(5min) | K·84 | ||
| Rated frequency | Hz | 50 | |
| Rated current | A | 3150 | |
| Amplitude factor | 1.5 | ||
| Rated short-circuit breaking current | KA | 31.5 | |
| Rated short-circuit breaking current(peak) | KA | 80 | |
| Rated short-circuit with stand current | KA | 31.5 | |
| Rated peak value withstand current | 80 | ||
| Rated short-circuit duration | s | 4 | |
| Rated out-of-phase breaking current | KA | 8 | |
| Breaking current of close-in fault | KA | 90%lk,75%lk | |
| Rated line-charging breaking current | A | 10 | |
| Operating sequence | O-0.3s-CO-180s-CO | ||
| Resistance of the main circuit | μ Ω | ≤40 | |
| Rated gauge pressure of SF6(20°C) | Mpa | 0.5 | |
| Minimum functional gauge pressure(20°C) | Mpa | 0.45±0.03/0.40±0.03 | |
| Annual leakage rate of SF6 | <0.5% | ||
| Amount of water of SF6(V/V) | ppm | ≤150×10-6 | |
| Mechanical life | times | 10000 | |
| Electrical level of radio interference | μ V | ≤500 | |
| Creepage distance | Between interrupter | mm | >1800 |
| To earth | >1800 | ||
| Weight of the SF6 | kg | 6 | |
| Weight of the circuit breaker | kg | 1000/2000(with transformer) | |
| note:external insulation level is changed by modified coefficient. Every 2000m of altitude, K=1.13;altitude3000m, K=1.28 | |||
| mian technical data of structure | |||
| Name | Unit | Value | |
| Auxiliary circuit voltage | V | DC220 or DC110 | |
| Thevoltage/current of the opening and closing coils | V/A | DC110/4;DC220/2 | |
| Eenergy storage motor | Rated voltage | V | DC220,AC220/DC110,AC110 |
| The range of normal working voltage | V | 85%-110% | |
| Power | W | 600 | |
| The energy storage time of motor | s | ≤15 | |
| The loop voltage of the heater and the lamp | V | AC220 | |
| Rated voltage of the auxiliary switch | V | DC220,AC220/DC110,AC110 | |
| Rated current of the auxiliary switch | A | 10 | |
| Contacts of the auxiliary switches | 10 normal opened contacts and 10 normal closed contacts | ||
| Mechnical adjustment of the breaker | |||
| Name | Unit | Value | |
| Center distance between poles | mm | 1500 | |
| Strode length of the moving contact | mm | 120+30 | |
| Contact stroke length of the moving contact | mm | 25+20 | |
| Length of the inter phaseoperating connecting rod | mm | 110+30 | |
| Switch-off speed | m/s | 4.2-5m/s | |
| Switch-on speed | m/s | 2.2-3m/s | |
| Switch-off time | ms | ≤40 | |
| Switch-on time | ms | ≤100 | |
| Break time | ms | ≤60 | |
| Switch-on/off time | ms | ≤80 | |
| Switch-off/on time | ms | 300 | |
| The time difference of the opening of three phases | ms | ≤2 | |
| The time difference of the closing of three phases | ms | ≤3 | |
Order notice :
The type and the specification of hte circuit breaker .
Rated electric parameter
Environmental condition
Rated electric parameter of control loop
The connection direction of the primary upper terminal
