
10KV AIternative Current Vacuum Load Switch Fuse Combined Apparatus
NINGBO TIANAN (GROUP) CO., LTD.
General
FN5-12FN5-12RDFN5-12R Series lndoor AIternative Current High
Voltage Load switch is sultable in 50Hz L0kV alternative current
power grid for breaking load current and closing short circuit
current. Load switch with fuse Can close and open short circuit
current for protection. It is mainly used in downtown power
distribution station and industrial electric equipment of three
phase ring main unit electricity circle or terminal power supply,
for breaking and closing short circuit current.
Service condition
1. The altitude does not exceed 1000m.
2. The ambient air temperature: Highest:+40oC, the lowest:-10oC
3. The relatire Humidity of air not bigger 90% (around the 25oC
envirenment)
4. The working situation have no conductivity dust.
5. The working situation have no corrosive gas of affect insulation
and destroy metal.
6. The working situation without violent vibration and striking.
7. The working situation have no explosive danger and fire.
Technical parameter
S/N | Name | Unit | Value | |
1 | Rated voltage | kV | 10 | |
2 | Max working voltage | kV | 12 | |
3 | Rated frequency | Hz | 50 | |
4 | Rated current | A | 400 | 630 |
5 | Rated short-time withstand current (Thermal stability current) | kA/s | 12.5/4 | 20/2 |
6 | Rated peak withstand current (Dynamic current) | kA | 31.5 | 50 |
7 | Rated closed-loop breaking current | A | 400 | 630 |
8 | Rated active load breaking current | A | 400 | 630 |
9 | 5% rated active load breaking current | A | 20 | 31.5 |
10 | Rated cable charging breaking current | A | 10 | |
11 | Rated short-circuit making current | 1250kVA no-load current of transformer | ||
12 | Load current breaking times | kA | 31.5 | 50 |
13 | Rated no-load transformer breaking current | Load/Times | 100%/20 60%/35 | 30%/75 5%/80 |
14 | 1min power frequency withstand voltage (r.m.s) To earth, between phases / to isolating distance | kV | 42/48 | |
15 | Power withstand voltage Isolating distance | kV | 53 | |
16 | Lightning impulse withstand voltage (peak)To earth, between phases/isolating distance | kV | 75/85 | |
17 | Opening-closing operation torque (force) | N·m | 90(180) | 100(200) |
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.