Overview：
LN2-35 type indoor high-voltage SF6 circuit breaker is an indoor device in AC 50Hz three-phase system, which can be used for protection and control in industrial and mining enterprises, power plants and substations. It can be used in the place of frequent operation, and can also be used as contact circuit breaker and suitable for capacitor bank circuit breaker.
Using environmental conditions:
1.Ambient temperature is not higher than +40℃ and not lower than -10℃.
2.Altitude not more than 3000m.
3.Relative temperature not more than 90% (+20℃).
4.No fire hazard, explosion danger, serious filth, chemical corrosion and severe vibration occasions.四． Technical Parameters
Technical Parameters:
LN2-35 type indoor high-voltage sulphur hexafluoride circuit breaker conforms to the national standard of GB1984-89 "AC High-voltage Circuit Breaker", ZBK43001-88 "General Technical Conditions of High-voltage Sulphur Hexafluoride Circuit Breaker" and the provisions of IEC-56 standard, and the main parameters are shown in Table 1.
Table 1
|
No. |
Name |
unit |
Data |
||||
|
LN2-35/1250A-25 |
|||||||
|
1 |
Rate Voltage |
KV |
40.5 |
||||
|
2 |
Maximum working voltage |
KV |
40.5 |
||||
|
3 |
Rated insulation level |
Lightning impulse withstand voltage (full wave) |
KV |
185 |
|||
|
Industrial frequency withstand voltage(1min) |
95 |
||||||
|
4 |
Rated Frequency |
HZ |
50 |
||||
|
5 |
Rated current |
A |
630/1250 |
||||
|
6 |
Rated short-circuit breaking current |
KA |
31.5 |
||||
|
7 |
Rated operation sequence |
O-0.3S-OC-180S-CO |
|||||
|
8 |
Rated short-circuit closing current |
KA |
63 |
||||
|
9 |
Rated dynamic stability current |
peek value |
63 |
||||
|
10 |
Rated thermal stability current |
KA |
25 |
||||
|
11 |
Rated thermal stability time |
S |
4 |
||||
|
12 |
Opening and closing individual capacitor bank opening current |
A |
400 |
||||
|
13 |
Rated out-of-step breaking current |
6.3 |
|||||
|
14 |
Accumulated breaking times under rated current |
times |
2000 |
||||
|
15 |
Accumulated breaking times under rated short-circuit breaking current |
16 |
|||||
|
16 |
Mechanical life |
With CT10-A spring mechanism |
6000 |
||||
|
With CD10ⅢG electromagnetic mechanism |
5000 |
||||||
|
17 |
Mechanical life |
Spring Mechanism |
S |
0.15 |
|||
|
Electromagnetic Mechanism |
0.2 |
||||||
|
18 |
Inherent time of tripping |
The operating voltage |
lowest |
0.10 |
|||
|
Rated |
0.07 |
||||||
|
Maximum |
|||||||
|
19 |
Sulphur hexafluoride gas rated pressure (gauge pressure at 20°C) |
Mpa |
0.65 |
||||
|
20 |
Sulphur hexafluoride gas alarm pressure (gauge pressure at 20℃) |
0.42 |
|||||
|
21 |
Sulphur hexafluoride gas blocking pressure (gauge pressure at 20℃) |
0.40 |
|||||
|
22 |
Annual gas leakage rate |
1% |
|||||
|
23 |
Moisture content of sulphur hexafluoride gas |
PPM(V) |
150 |
||||
|
24 |
Rated operating voltage with CT10-A spring-operated actuator |
Closing Coil |
V |
DC48.110.220 |
|||
|
Opening Coil |
DC48.110.220 |
||||||
|
Electric motor |
DC110.220 |
||||||
|
25 |
With CD10ⅢG electromagnetic |
Closing Coil |
DC110.220 |
||||
|
Rated operating voltage of the operating mechanism |
Opening Coil |
DC48.110.220 |
|||||
|
26 |
Net Weight |
Circuit breaker body |
kg |
135 |
|||
|
Sulphur hexafluoride gas |
1.5 |
||||||
Structure:
4.1 LN2-35 type SF6 circuit breaker by the switch body and mechanism box and car three parts, the switch body and the mechanism are mounted on the handcart frame (with GBC-40.5 and JYNI-40.5 handcart is the same, with the KYN10-40.5 handcart structure single). The mechanism box consists of box, spring energy storage and deceleration mechanism, closing spring, splitting spring, splitting and closing solenoid and manual button, switch spindle, buffer and control device.
4.2 Switch main body arrangement: circuit breaker three mounted on a bottom box, the internal communication, the box has three connected to the dynamic axis, through the three main crutch arm, three edge pull rod to promote the conductive rod moving contacts, each by the overall edge of the cylinder composition.
Shaanxi Yuguang Electric Co.,Ltd. offers competitive prices for LN2-35 Indoor Sulfur Hexafluoride (SF6) Circuit Breaker without compromising quality. We have a professional after-sales service team that provides timely and professional services to ensure customer satisfaction.
Shaanxi Yuguang Electric Co.,Ltd. has established a strict safety assurance and quality management system to ensure that each product meets or exceeds industry standards. Each product undergoes strict inspection and testing before delivery to ensure it meets relevant safety and quality requirements.
In conclusion, Shaanxi Yuguang Electric Co.,Ltd.is a professional manufacturer and supplier of LN2-35 Indoor Sulfur Hexafluoride (SF6) Circuit Breaker. Our products feature high performance, reliable operation, low maintenance costs, and high safety and stability. We offer competitive prices, reliable after-sales services, and strict safety assurance and quality management. If you are interested in our products or require further information or support, please contact us at ygvcb@hotmail.com
OEM/ODM Services:
At Shaanxi Yuguang Electric Co., Ltd., we understand the importance of customization. That's why we offer comprehensive OEM and ODM services to meet your specific requirements. Whether you need private labeling or custom product development, our experienced team is here to assist you every step of the way.
Certificates:
We take pride in our commitment to quality and safety. Our products are certified to meet the highest industry standards, including:
3C Certification
ISO 9001 Certification
21 Utility Model Patents and Design Patents
Why Choose Us:
State-of-the-art Manufacturing Equipment
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FAQ:
Q: What is the warranty period for your products? A: We offer a one-year warranty on all our products.
Q: Can you customize products according to our specifications? A: Yes, we provide OEM and ODM services to meet your specific requirements.
Q: Are your products compliant with international standards? A: Yes, our products meet all relevant international standards.
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