
XGN75 Series SF6 Gas Insulated Medium Voltage Switchgear GIS
General
The gas insulated switchgear designed for installation in
transformer substation, industrial plants, and infrastructure &
complies the most stringent requirement of
This switchgear conforms to IEC 62271-200 and all primary
components employed therein are in accordance with the relevant
standards.
It is designed to accommodate high performance vacuum
circuitbreaker (VCB) which has been designed and tested in
accordance with IEC62271-100.
The switchgear panels are suitable for the assembly of single
&double busbar systems for indoor installation.
Features:
1. Reliable
Each compartment is monitored individually &has its own
pressure relief device.
Use of Vacuum circuit breakers with high number ofmechanical &
electrical operations
Robust interlocking system
2. Safety
The primary side components are hermetically enclosed, gas filled
compartment and thus insensitiveto atmosphere, dirt &dust.
Current transformer are mounted outside the gas compartment &
mounted on earthed LV compartment
3. Space saving
Smaller foot prints. All operations on the switchgear front
4. Economically efficient
Reduced space & surface area requirement.
Long service life
Maintenance free Gas compartment
Technical Data
S/N | Item | Unit | Data |
1 | Rated voltage | kV | 12 |
2 | Rated current | A | 630 1250 2000 2500 |
3 | Rated frequency | Hz | 50/60 |
4 | Rated power frequenecy withstand voltage (1 min) | ||
5 | Phase to phase, phase to earth | kV | 45 |
6 | Between clearance | kV | 48 |
7 | Rated ligtning impulse withstand voltage | ||
8 | Phase to phase, phase to earth | kV | 75 |
9 | Between clearance | kV | 85 |
10 | Power frequency withstand voltage of auxiliary control circuit (1 min) | V | 2000 |
11 | Rated short-cricuit breaking current (rms) | kA | 20 25 31.5 |
12 | Rated short-circuti making current | kA | 63 80 100 |
13 | Rated short time withstand current | kA/s | 25/4 31.5/4 40/4 |
14 | Rated peak withstand current | kA | 63 80 100 |
15 | Degree of protection | Gas-filled compartment : IP67 LV compartment: IP4X | |
16 | Every phase amin return circuit resistance | uΩ | <250 |
17 | Rated SF6 gas pressure (20ºC) | Mpa | 0.045 |
18 | Min SF6 gas pressure (20ºC) | Mpa | 0.03 |
19 | Annual SF6 gas loss rate | % | <1 |
20 | Rated voltage of auxiliary control circuit | V | DC 110/220 AC 220 |
21 | Dimensions (WxDxH) | mm | 500x1000x1850 |
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.