Ningbo Tian'an Jinghua Power Technology Co., Ltd.
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| Place of Origin: | CHINA |
| Brand Name: | Tianan Electric |
| Certification: | ISO9001，IEC |
| Model Number: | LW8-40.5 |
| Minimum Order Quantity: | 10 sets |
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| Price: | Pending |
| Packaging Details: | wooden cases |
| Delivery Time: | 35 work days |
| Payment Terms: | T/T, L/C |
| Supply Ability: | 1000sets per year |
| Function: | Overcurrent Protection | Rated Current: | 2000A |
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| Rated Voltage: | 40.5KV | Mechanical Endurance: | 5000 Time |
| Poles Number: | 3 | Rated Frequence: | 50Hz |
| Mechanical Endurance: | 5000times | Condition: | Outdoor |
| Product Name: | Outdoor 2000A 0.45mpa High Voltage Vacuum Circuit Breaker 1000M Sea Level | ||
| High Light: | 2000A High Voltage Vacuum Circuit Breaker,0.45mpa High Voltage Vacuum Circuit Breaker,outdoor vacuum circuit breaker 1000M sea level |
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Outdoor 2000A 0.45mpa High Voltage Vacuum Circuit Breaker 1000M Sea Level
Introduction
LW8-40.5 Outdoor HV SF6 circuit breaker is three-phase AC 50Hz outdoor high voltage electrical equipment for 35kV transmission and distribution system control and protection can also be used for opening and closing of contact breaker and capacitor bank of the occasion, and current transformer can be included for measurement and protection purposes. Circuit breaker equipped with CT14-type spring operating mechanism. Meet the national standard GB1984-89 "AC high voltage circuit breakers" and the International Electro technical Commission standards IEC56 publication, "High-voltage AC circuit breaker" requirements.
Application environment for Outdoor 2000A 0.45mpa High Voltage Vacuum Circuit Breaker 1000M Sea Level
a. Altitude to be not more than 1000m.
b. Ambient temperature: -30ºC - + 40ºC, the average value of 24H to be not more than 35ºC;
c. Relative humidity: the daily average value to be not more than 95%, monthly average value to be not more than 90%,
d. Speed of wind: not more than 35km/s
e. Contamination condition to be III grade, porcelain bushing creepage distance shall be 1050 mm (nominal creepage ratio to be not less than 25mm/kV);
f. The ambient air should be free of the flammable material, explosive danger, chemical corrosive and intensive shake.
Features of Outdoor 2000A 0.45mpa High Voltage Vacuum Circuit Breaker 1000M Sea Level
1. Breaking performance, arcing time is short, long electrical life at rated voltage continuously breaking 31.5Ka 20 times without maintenance, not replacement of sulfur hexafluoride gas.
2. Insulation reliable pressure gauge when the zero-tolerance 40.5kV/10min;
3. Mechanical reliability is high, closing ability, can often operate;
4. To open and close without capacitor current 400A renewed;
5. 25, 50 km long cut empty without renewed;
6. Simple structure, small size, long period without maintenance
Technical parameter of Outdoor 2000A 0.45mpa High Voltage Vacuum Circuit Breaker 1000M Sea Level
| No. | Item | Unit | Parameter | |
| 1 | Rated voltage | kV | 40.5 | |
| 2 | Rated insulation level | 1min power frequency withstand voltage | kV | 185/215(fracture) |
| Lightning impulse withstand voltage | 95/118(fracture) | |||
| 3 | Rated current | A | 2000 | |
| 4 | Mechanical endurance | time | 5000 | |
| 5 | Rated pressure of SF6 gas(20ºC meter pressure) | Mpa | 0.45 | |
| 6 | Locking pressure (20ºC meter pressure) | Mpa | 0.40 | |
| 7 | Lowest ambient temperature | ºC | -30 | |
| 8 | Rated short-circuit breaking current | kA | 31.5 | |
| 9 | Rated short-circuit making current(peak) | kA | 80 | |
| 10 | Rated short time withstand current(thermal current) | kA | 31.5 | |
| 11 | Rated peak withstand current(dynamic current) | kA | 80 | |
| 12 | Rated out-of-phase breaking current | kA | 7.9 | |
| 13 | Breaking times of the rated short-circuit breaking current: | time | 16 | |
| 14 | Close time | s | ≤0.1 | |
| 15 | Open time | s | ≤0.06 | |
| 16 | Rated operation sequence | O-0.3s-CO-180s-CO | ||
| 17 | Rated breaking/opening current of single capacitor group | A | 400 | |
| 18 | Last time of short circuit current | s | 4 | |
| 19 | SF6 leakage rate (yearly) | ≤1 | ||
| 20 | Moisture Content of SF6 gas(20ºC) | Ppm(v/v) | ≤150 | |
| 21 | Rated operating voltage of spring operation mechanism | |||
| Voltage of closing and opening coil | V | AC 220, 380 DC:48, 110 , 220 |
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| Voltage of energy storage motor | V | AC 220 DC 220 |
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| 22 | Weight of SF6 gas | kg | 8 | |
| 23 | Weight of circuit breaker (including operation mechanism) | kg | 1400 | |
Table 2
| No. | Item | Unit | Technical Requirements | Test conditions and methods |
| 1 | Travel of movable contact | mm | 95±2 | Measurement of movable contact travel refer to darawing12 |
| 2 | Clearance between contacts | mm | 605±1.5 | Measurement of Clearance between movable and fixed contact refer to drawing 12a |
| 3 | Three-phase switch-on asynchrony | ms | ≤3 | Measurement of pole distance difference between movable and fixed contact refer to darawing14 |
| 4 | Three-phase switch-off asynchrony | ms | ≤2 | Measurement of pole distance difference between movable and fixed contact refer to drawing 15 |
| 5 | Resistance of main loop | μΩ | ≤120 | Measurement to DC voltage drop method, put in 100A |
| 6 | Speed at instant of contacts touching | m/s | 3.2±0.2 | Rated voltage and measurement method refer to drawing 14 |
| 7 | Speed at instant of contacts disconnecting | m/s | 3.4±0.2 | Rated voltage and measurement method refer to the drawing 15 |
| 8 | Cuisine stroke of making | mm | 10+0.5 -0.1 | Refer to drawing 6 under the closing status |
| 9 | positioning gap of Cuisine stroke of making | mm | 1-2 | Refer to drawing 6 under the closing status |
| 10 | Partial charging 40.5kV 25.7kV |
PC | 20 | At rated gas pressure, use partial instrument to put 40.5kV between two outgoing wires for 1min, then drop to 25.7kV equably |
| PC | 10 |
Contact Person: admin
Tel: +8613858385873
