
12KV Combined Compact Prefabricated Transformer Substation IP55
Service Condition
1. Altitude: ≤ 1000m (above sea level)
2. Ambient temperature: Max. 40C Min. -25C
>>Max. Monthly average temperature: ≤ 35C
>>Max. Yearly average temperature: ≤ 25C
3. Relative humidity: Daily average value≤ 95%, monthly average
value≤ 90%
4. Max. Daily difference in temperature: 25C
5. Sunlight intensity: 0.1W/CM2 (wind speed 0.5M/S);
6. Outdoor wind speed: ≤ 35m/s;
7. Pollution grade: Grade III;
8. Rain proof grade: Grade 3;
9. The gradient on installation spot shall be not more than 3° ;
10. Ability of anti-earthquake: Horizontal acceleration of ground
surface is 0.2g
Vertical acceleration of ground surface is 0.1g;
11. Installation spot: The spot should has no fire/explosion
danger/serious pollution/chemical
corrosion and exquisite shake.
****Customer should negotiate with manufacturer if the service
condition is different from above.
Features
a. The frame of substation is made of groove steel and angle steel which are antiseptic, so it is tough enough mechanically and rigidly.
b. Materials of the enclosure can be cold rolled steel plate, stainless steel plate, aluminum alloy plate, composite color plate.
c. The chambers of substation are divided into separate small chambers by steel plate, small chambers can be arranged in many forms such as Chinese character “eye” and ”rank”.
d. In order to monitoring and maintaining conveniently, transformer room, HV room and LV room are all equipped with lighting device.
e. The substation cover is designed as two-layer, it can prevent thermal radiation and increasing indoor temperature.
f. The transformer adopts natural ventilation mainly, when the temperature exceeds setting value, the axial flow fan on the top will start automatically to control the transformer room temperature.
g. All rotational connect parts are equipped with sealing device for good damp proof capacity.
h. Perfect protective performance, convenient operation, there are complete “five prevention” function on HV side to ensure the safety of maintenance.
i. Compact structure, beautiful appearance, it can coordinate with ambient environment.
Items | Unit | Parameters | |||
---|---|---|---|---|---|
HV Unit | Rated Voltage | kV | 12 | ||
Rated Frequency | Hz | 50 | |||
Rated Main Busbar Current | A | 630 | |||
1min Power Frequency Withstand Voltage To Earth, Between Phases/to open gap | kV | 42/48 | |||
Lightning Impulse Withstand Voltage to Earth and Between Phases/ to open gap | kV | 75/85 | |||
Rated Short-time Withstand Current | kA/s | 25/2 | |||
Rated Peak Withstand Current | kA | 63 | |||
Rated Short-time Making Current | kA | 50 | |||
Fuse Breaking Current | kA | 31.5/40 | |||
LV Unit | Rated Voltage | V | 400 | ||
Main Circuit Rated Current | A | 100~4000 | |||
Rated Limit Short-circuit Breaking Capacity | kA | 80 | |||
Rated Operating Short-circuit Breaking Capacity | kA | 50(65) | |||
Rated Short-time Withstand Current | kA/1s | 50(65) | |||
Branch Current, Compensation Capacity | According to users’ requirements | ||||
Transformer Unit | Rated Capacity | kVA | 30~2000 | ||
Resistance Voltage | % | 4/ 4.5 | |||
Tapping Range | % | ±2X2.5; ±5 | |||
Connected Group | Y,yn0; D,yn11 | ||||
Case | Protection Level | IP23 | |||
Sound Level | dB | ≤50 |
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.