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Double Column High Voltage Isolator Switch Ac 252kv Gw23 For Outdoor
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Brand Name:Tianan Electric
Model Number:GW23 (GT9)
Price:Pending
Payment Terms:T/T, L/C, D/A, D/P
Supply Ability:5000 setss per year
Delivery Time:30 days
Company Data
Verified Supplier
Contact Person
Lian Huanhuan
Business Type:
Manufacturer Exporter Trading Company Seller
Officials:
3/F, Building B7 , 999 Yangfan Road,High-tech Zone, Ningbo, China 315040
Quality:
Quality Certifitation Available
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Product Details
Company Profile
Product Details
GW23 252 KV Double Column Outdoor AC HV Disconnector / Disconnect Switch
General overview
GW23 (GT9) 252D/2500-50 Type Double Column Outdoor AC HV Disconnector is developed on the basis of aiming at existing defects about disconnector conducting loop overheating, operating mechanism failure, metal material corrosion serious, and then making great improvement.
Advantages
The product has advantages of beautiful appearance, simple structure, high performance of corrosion resistant and antiseismic, safe and reliable electric and mechanical property.
It is the matured product that our company recommends to HV electricity distribution network, and it’s also an upgrade product of disconnector. It is suitable for system with 50Hz AC frequency and 110kV rated voltage. It can be used in electricity isolation when HV line, circuit breaker and other electrical equipments are no-load.
Technical parameters
| S/N | Name | Unit | Parameters | |
| 1 | Rated voltage | kV | 252 | |
| 2 | Rated current | A | 2500 | |
| 3 | Peak withstand current of disconnector and earthing switch (peak) | kA | 125 | |
| 4 | 3s short-time withstand current of disconnector and earthing switch (r.m.s) | kA | 50 | |
| 5 | Main circuit resistance of disconnector | μΩ | ≤130 | |
| 6 | 1min power frequency withstand voltage(r.m.s) | Phase-to earth(dry, wet) | kV | 395 |
| Fracture | 460 | |||
| 7 | Lightning impulse withstand voltage (1.2/50μs) | Phase-to earth | kV | 950 |
| Fracture | 1050 | |||
| 8 | Mechanical endurance test of disconnector and earthing switch | Times | 2000 for each | |
Company Profile
Ningbo Tianan (Group) Co.,Ltd.
Ningbo Tianan (Group) Co, Ltd is a famous leading influential enterprise of the power transmission equipment manufacturing in China.It was founded in 1969,currently under the group, we have 1 national-level R&D center, 2 provincial-level R&D center, 10 professional companies, 70 sales offices, and its total asset is 4.2 billion Yuan, over 3500 employees.
As an outstanding representative of Chinese-made, our enterprise is in the steady development and growth in the tide of reform and opening up.
In1976,our production mode transforms from Labour products to the manufacturing process;
ln1982,the Xiangshan local state- owned high-voltage electric factory was founded,we start the professional development of electrical apparatus ;
In1994,we reorganized and established joint- stock company, enngraver to be an international group ;
In 2005, our group ranked the No. 225 in competitiveness of China's top 500;
According to national development,we expand five major industrial, such as the high voltage apparatus, renewable energy equipment, intelligent grid and rail transit equipment,and magnetic gear in order to achieve the business strategic abjectives.
Over these years, our company stand for independent innovation and to build low-carbon economic development
model.Annual R & D expenses accounted for more than 5% of
corporate sales.We have mastered the core technology of
transformation and distribution equipment and core self-supporting
ability long since.Our self- developed prefabricated substation,
ring main unit, load switch, wind power switchgear, inelligent grid
systems and many other products achieved the international advanced
level,By the way, we are the one of the companies who draft the
national standards about that.
Tianan has the certification and honour involves China famous
brand,China top brand,National inspection- free products and
ISO9001 quality system, IS014001 environmental management system,
OHSAS 18001 occupational health and safety management system. the
inspection measurement and certification system and
"CCC","PCCC"，etc.Also we equipped with business efficient and
flexible management mechanism, large number of outstanding
professionals, first-class production and testing equipment,
high-level research and development strategy, Quality is the
character" concept, perfect quality management system and quality
assurance,sales and marketing network all over the
country,which forms to provide customers with excellent
support system of resources.
The products are widely used in nuclear power plant, chemical plant, railway, underground, Airport, national defense, Beijing Olympics and main national, provincial and municipal construction projects. Whether in the Shenzhou spacecraft launching base,the Sanxia power plant, Qinghai-Tibet railway, Qingshan nuclear power station, or domestic subway, Olympic venues. International airport. wind farms and so on.Our projects applied in more than 30 countries and regions all over the world. Our main products includes
- 126kV&252kV power transformer,resin-Cast Dry-type & Oil-immersed Power transformer，Combined transformer
- 252kV and below 252kV outdoor HV disconnecting switch and transformer,
- Boxtype substation below 40.5kV,Prefabricated substation and cable (RMU)branch box
- High Voltage &Medium Voltage&Low Voltage switchgear
- Ring main unit switchgear, mid-mount switchgear, fixed switchgear, GIS switchgear,frequency conversion switchgear,
- 126kV GIS combination apparatus,
- SF6 circuit breaker,Vacuum circuit breaker ,H. V. &L. V. Circuit breaker,
- H. V. Load switch, fuse, current transformer (CT),
- High-voltage inverter speed regulation device, high-voltage static reactive power Generator, active power filter, intelligent electric equipments, etc.
Seeing is believing, Tianan Group sincerely welcome all new and old customers and friends come to our company for a visit or inspection.
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