
The product uses the latest intenational design concept and epoxy resin encapsulated silione rubber APG insuation technology as welll as precision processing technology. The technology is in the domestic
leading level.
The features are as follows:
1.The product adopts three phase pillar structure, compact design,
stable and reliable breaking performance, no fire and explosion
hazards, maintenance-free, small size, light weight and long
service life.
2. The circuit breaker can be equipped with integrated
disconnector, and has reliable mechanical interlock between
disconnector and circuit breakers, to prevent misoperation.
3. The circuit breaker is fuily enclosed structure with good
sealing performance, high anti-moisture, anti-condensation
propertes specially suitable for cold or wet areas.
4. Three- phase column and CT are adopted imported outdoor epoxy
resin solid insulation material casting. It has the features of
high temperature resistance, UV resistance, anti-aging
characteristics, and it can ensure long-term outdoor safety.
5 The circuit breaker uses the small size spring operation
mechanism, low enery consumption during open-close. lts
transmission adopts direct drive method, and less open-close
parts,high relability. lts operation mechanism is sealed in the
mechanical box ,which solves corrsion problem of switch parts so as
to improve the reliability of circuit breaker.
6. The open-close operation of the circuit breaker can use manual
operation, and motor operation.It can be equipped with controller
to realize distribution automazation as well as combined with
recloser controller as automatic recloser.
7. The circuit breaker can be equipped with two-phase, three- phase
and zero-sequence CT to provide data analysis for overcurrent
automatic release protection and smart controller.
Environmental Conditions
1. Altitude: ≤1000m; if applied in special conditions, it is
designed to 2000m to 4000m to meet the requirements of different
altitudes.
2. Ambient temperature: -15℃~+40℃;
3. Wind speed≤35m/s;
4. It is placed in the places without violent vibration
Parameters
No. | Item | Unit | Value | Remark |
1 | Rated voltage | kV | 12 | |
2 | Rated frequency | Hz | 50 | |
3 | Rated Current | A | 630 | |
4 | Rated short circuit breaking current | kA | 20 | |
5 | Rated peak withstand current (peak) | kA | 50 | |
6 | Rated short-time withstand current/endurance | kA/s | 20/4 | |
7 | Rated short circuit making current (peak) | kA | 50 | |
8 | Rated operating sequence | Open--0.3S-Close-Open-180S--Close-Open | ||
9 | Mechanical endurance | Time | 10000 | |
2000 | Disconnector | |||
10 | Rated current breaking times | Time | 10000 | |
11 | Rated short circuit current breaking times | Time | 30 | |
12 | 1min power frequency withstand voltage of the main circuit (phase-to-phase, to earth/fracture) | kV | 42/48 | Hygrometric state 34 |
13 | Lightning impulse withstand voltage (phase-to-phase, to earth/fracture) | kV | 75/85 | |
14 | 1min power frequency withstand voltage of secondary circuit | kV | 2 |
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.