
110kV 126kV 3150A 40kA GIS SF6 Gas Insulated Switchgear
General:
SF6 Gas Insulated Switchgear (hereinafter referred to as GIS), it is comprised by CB, disconnector, earthing switch, CT, arrester, busbar, bushing, cable terminal, or other electrical apparatus elements.
All elements (except bushing) should be in the metal case, and there is excellent insulated and arc extinguishing SF6 gas in the metal case.
1. Excellent breaking performance
The original arc extinguishing system can meet the requirement of close-in fault, fall out step breaking, cutting sensibility, capacitative current. Excellent breaking can meet 1.5class, and also can meet the different systems requirement of neutral-point solid ground and neutral-point insulating.
2. High reliability and security
There are steady, reliable primary structure, three-position disconnector, disc- insulator with metal outer ring, high quality cast aluminium alloy shell and mechanical-electrical double interlocking. This product is beautiful exterior, reliable earth connection, without swirl loss, big safety margin, and can meet the temperature rise of 110% rated current and thermostable test for 4 seconds.
3. Low leakage rate of SF6
The seal link is reduced, simplify monitoring system of SF6, adopt multifunction integration proclaim oneself valve seat, which can completely eradicate SF6 gas leakage.
4. The rating is higher than like product, inflation pressure is lower, weight is lighter, space usage is smaller, lifetime us longer.
5. Module design is modulat, arrangement form is flexible, extension is easy.
6. Easy installation and short installation period
Use adjustable support, so that the foundation installation of GIS is easy. The control and signal cable adopts synthesize connector clip, which can make installation and maintain easier.
7. Lower noise
As lower operated power, the synthesize noise of GIS is lower. Noise standard is State city region I nightly standard rate.
Reference Specification:
S/N | Rated parameter | Parameter values | |||
1 | Rated voltage kV | 126 | |||
2 | 1 min power frequency withstand voltage (virtual value) kV | Phase-to-phase, to earth | 230 | ||
Isolating distance | 300 | ||||
3 | Lightning impulse withstand voltage (virtual value) kV | Phase-to-phase, to earth | 550 | ||
Isolating distance | 650 | ||||
4 | Rated frequency Hz | 50 | |||
5 | Rated current A | Main busbar | 4000 | ||
Branch busbar | 3150 | ||||
6 | Rated short-time withstand current kA | 40 | |||
7 | Rated peak withstand current kA | 100 | |||
8 | Rated duration of short-circuit s | Main circuit | 4 | ||
Earth circuit | 2 | ||||
9 | Rated pressure of SF6(20℃gage pressure)MPa | CB cabinet | 0.57 | ||
Others | 0.35 | ||||
10 | Annual leakage rate of SF6 | ≤0.5% | |||
11 | CB | Rated short circuit breaking current (virtual value) kA | 40 | ||
Rated short circuit making current (peak value) kA | 100 | ||||
Rated short circuit breaking current direct component | ≥40% | ||||
Rated operating cycle | O-0.3s-CO-180s-CO | ||||
Without inspection operation time(no-load) (time) | ≥6000 | ||||
Without full breaking time (time) | ≥20 | ||||
Mechanical life | ≥10000 | ||||
12 | Disconnector | Making busbar charging capacitance current capacity A | 2 | ||
Making magnetizing current capacity A | 6 | ||||
Making busbar transfer current/voltage A/V | 1600/30 | ||||
Mechanical life (time) | 6000 | ||||
13 | Fast earth switch | Rated short circuit making current (peak value) kA | 100 | ||
Mechanical life (time) | 6000 |
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,
- 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.