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33kv 1250A live tank SF6 circuit breaker with PT/CT

Short Description:

SF6 circuit breaker adopts SF6 as ar distinguishing and insulating media, and uses international most advanced auto arc-distinguishing technology, equipped with new type spring operating mechanism. It has advantages of long life, little operation power, little noise, high reliability and medium price.


Product Detail

Product Tags

SF6 circuit breaker

LW8-33 outdoor high-pressure sulphur hexafluoride circuit breaker is a three-
phase AC 50HZ outdoor high-voltage switchgear, suitable for the control and protection
of 66KV transmission and transformation system; it can also be used as a contact
breaker and opener group.
LW8-33 Type 5 circuit breaker adopts the principle of "thermal expansion+assist
blowing" and can only use a CTB-1 spring operating mechanism.
The circuit breaker complies with GB1984-2003 "AC High Voltage Circuit Breaker"
and meets the requirements of International Electrotechnical Commission standard
IEC62271-100:2001"High Voltage Switchgear and Control Equipment Part 100:High
Voltage AC Circuit Breaker".

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PRODUCT DETAILS

>>   Operational principle                                                                                                                                              / 工作原理
>>   Product characteristics                                                                                                                                           / 产品特性
>>   Product details                                                                                                                                                        / 产品细节
>>   Why choose us                                                                                                                                                        / 为什么选择我们

>> SF6 circuit breaker

高压SF6断路器是电网中的重要元件,它对电网运行的可靠性有着重要影响。 [1]
1、当电子和SF6分子接触时几乎100%的混合而组成重的负离子,这种性能对剩余弧柱的消电离及灭弧有极大的的使用价值。即SF6具有很好的负电性,它的分子能迅速捕捉自由电子而形成负离子。这些负离子的导电作用十分迟缓,从而加速了电弧间隙介质强度的恢复率,因此有很好的灭弧性能。在1.01×105Pa气压下,SF6的灭弧性能是空气的100倍,并且灭弧后不变质,可重复使用。
2、SF6气体优良的绝缘和灭弧性能,使SF6断路器具有如下优点:开断能力强,断口电压适于做得较高,允许连续开断次数较多,适用于频繁操作,噪音小,无火灾危险,机电磨损小等,是一种性能优异的"无维修"断路器。在高压电路中应用越来越多。
2
隔离开关功能

Safety protection   //  Fine workmanship  //  Easy to install  //  Long life  //  Provide custom

>> Operational principle工作原理

SF6断路器的动作过程是这样的:工作缸内的活塞受到来自油阀的压力后,驱动支柱内的绝缘杆上下运动,经过三联箱内连杆机构变换后,使灭弧室内的压气缸、主动触头和弧触头随之运动,从而实现合闸和分闸。其灭弧结构,一般采用单压力变开距双吹式。

>> Product characteristics产品特性

开断能力强,断口电压适于做得较高,允许连续开断次数较多,适用于频繁操作,噪音小,无火灾危险,机电磨损小

>> Product details 产品细节

Rated voltage: 33kV

Rated frequency: 50Hz

Rated current: 1250A

Rated short circuit breaking current: 31.5kA

Rated duration of short-circuit: 3s

Rated short-circuit making current (peak) : 100kA

Rated peak withstand current: 100kA

Rated short-time withstand current: 40kA

Rated out-of-phase breaking current: 10kA

Rated line charing breaking current: 50A

Rated operating sequence: O-0.3s-CO-180s-CO

Head opening coefficient: 1.5

>> Why choose us

DESIGN SERVICES

Packaging design and improved product mix have a history of more than 20 years. It is the most important to establish and maintain the unique characteristics and style of products

PRODUCT SAMPLING

Mass production can only start after you approve it

DEVELOPMENT

New product development, different market characteristics and commitment to international trade facilitation, credibility and transparency

AFTER-SALE SERVICE

Customer feedback: actively looking for solutions to problems, professional technical guidance and long-term after-sales service

奖状

COMPANY INTRODUCTION

公司图片
Company profile

       Lawrence Electric Co., Ltd. is a high-tech enterprise focusing on power transmission and distribution products, providing customers with one-stop service of power transmission and distribution products.

        It mainly produces and sells lightning arrester, insulator, fuse, isolation / load switch, SF6 / vacuum circuit breaker, power supply fittings, optical cable fittings, switch cabinet and other transmission and distribution products. The company has production bases and sales centers in Jiangxi, Zhejiang, Uganda, Tanzania and other places.

Nature of Business

        Our products have operated safely in the power supply systems of more than 20 countries and regions around the world for more than 10 years. They are also qualified suppliers of China State Grid and China Southern Power Grid. At present, they have gained a good reputation in the field of power system in the world.

world

        We have received high-quality product recommendation letters from power supply companies in Kenya, Uganda, Tanzania, Zambia, Guinea, Ghana, Togo, Mozambique, Nepal, Guyana, Myanmar and other countries and regions.

Real shooting factory

factory

Conformity inspection

test

Ehibition

xhibition

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企业愿景:成为全球输配电集成供应商
OUR VISION: ONE STOP SERVICE FOR THE GLOBAL DISTRIBUTION AND SUBSTATION ELECTRICAL MATERIALS.
企业价值观:以卓越品质立企业之本,以优质服务得民众之心。
OUR VALUE: SUPERIOR QUALITY BUILDS THE FOUNDATION, EFFICIENT SERVICE WINS CUSTOMER’S CREDIT.
企业精神:团队协作,勇于开拓,持之以恒,共创辉煌。
OUR SPIRIT: FOCUS ON TEAMWORK AND COLLABORATION
BRAVE IN EXPLORATION AND CREATIVITY
NEVER GIVE UP ON ANY COMPANY PERSONNEL
TO CREATE A BRILLIANT TOMORROW TOGETHER
员工行为:倾听,微笑,赞美,坚守承诺,感恩。
CONDUCT CODE: LISTEN, SMILE, PRAISE, APPRECIATE
企业责任:为客户创造价值,为员工创造美好生活,为社会做出应有贡献。
OUR RESPONSIBILITY: MAXIMIZE CUSTOMER’S PROFIT, CREATE GREAT CONDITION FOR STAFF,
MAKE CONTRIBUTIONS TO THE WHOLE WORLD !。

PACKAGING AND TRANSPORTATION

Packaging-and-transportation

SHOPPING INSTRUCIONS

Warranty

We are aware of the quality assurance. If you have any question, please contact the customer service, so as to ensure that you can use them and solve your worries.

About Delivery

The production cycle is generally 10 to 30 working days depending on the product. In case any urgent materials please contanct with us for fast delivery.


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