Disconnector 252kv 363kv Isolator
| Price: |
US $ 300-80000/Piece |
| Trade Terms: |
FOB,CFR,CIF |
| Min Order: |
1/Piece |
| Pay Type: |
L/C,T/T,D/P,Western Union |
| Prod Model: |
GW23(GT9)252D/2500-50 |
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| Type: |
High-voltage |
| Structure: |
Three-column Disconnector |
| Installation: |
Outdoor High-voltage |
| Operation: |
Manual |
| Grounding: |
Single Ground |
| Series: |
Three |
| Run: |
Vertical Rotation |
| Switching Mode: |
Single Throw-in |
| Certification: |
CE |
| Common Model: |
Gw |
Product Description
252kV Disconnector
GW23(GT9)252D/2500-50 type double pole outdoor AC HV disconnector evolves from older generation, improving the conductive circuit over-heat, operation mechanism failure, metal parts corrosion and other defects. It has characteristics of beautiful appearance, simple structure, anti-corrosion, good earthquake resistance, reliable mechanical and electric properties, etc. It is a new generation of disconnectors. It is suitable for AC frequency 50HZ, rated voltage 220KV system. It electrically isolates HV lines, CB and other equipments under no load.
Characteristic:
1. Application of friction type contacting structure in main knife moving conductive contact surface
2. Auto-locking device of breaking and closing positions effectively prevents the separation of dynamic/static contacts due to wind or electric motive force
3. The application of non-oil bearing and copper alloy sleeve on rotating point making it have auto-lubrication function and conquers the corrosion and seizure of the rotating point
4. Application of advanced surface processing technique and anti-rust aluminum, stainless steel greatly enhances surface anti-rust property
5. Three-pole linkage and electric/manual operation of main switch
6. Fitted with earthing switch that has the same short-circuit current withstand capability as disconnector
7. Effective prevention of mal-operation by electric/mechanical dual interlock between disconnector and earthing switch
| SI. NO. | Description | Unit | Data |
| 1 | Rated voltage | kV | 252 |
| 2 | Rated current | A | 2500 |
| 3 | Disconnector and earthing knife peak withstand current (peak value) | kA | 125 |
| 4 | Disconnector and earthing knife 3s short-time withstand current (effective value) | kA | 50 |
| 5 | Disconnector main circuit resistance | μΩ | ≤130 |
| 6 | 1min power frequency withstand voltage (effective value) | To earth /(dry/wet) | kV | 395 |
| Opening | 460 |
| 7 | Lightning impulse withstand voltage (peak value) | To earth | kV | 950 |
| Opening | 1050 |
| 8 | Mechanical life test of disconnector and earthing switch | Times | 2000 |
Ningbo Ville Electric Co., Ltd. One of wholly owned subsidiaries of VILLE INDUSTRY, It was invested by VILLE INDUSTRY, It is a well-know listed company in China specialized in R&D of electric power technology, equipment manufacturing and engineering services specialized in research, development, production of transformer and high voltage & low voltage electrical power equipment
Our Transmission and distribution companies can provide with whole solution for transformer substation and switch substation trunkey project!
The rated voltage from 11kV up to 132kV.
It locates in Hi-technical enterprise R & D center zone of Ningbo, Zhejiang province, which is one of the well-know coastal city in China. Its professional engaged in power substation, power plant project and electrical power complete equipments.
Working field: Manufacturing, engineering, designing, executing and commissioning for HV and LV electrical products. Turnkey substation from 11KV to 132KV.
Our transformer factory main working is visiting end user's site do measure and reseach before designe, and providing economic transformer solution for customer. Engineering, manufacturing, executing, commissioning and repairing for different kind of transformer (04kv -500kv ).
The products are mainly used in Steel plant; Power - Fossil fuel plant, Nuclear power plant, Railway, Subway and Airport. Wind power generation; Hydroelectric plant engineering; International power generation plant; Power substation transmission and distribution; Residential housing estate power distribution system and so on.
Transformer factory Product includes:
Three phase double (three)- winding power transformer, generator power transformer, auto power transformer, rectifier transformer for each industry, furnace transformer, movable transformer, traction transformer and reactor, power plant auxiliary and standby transformers, transformers for substations of backbone and distribution networks. Transformer for metallurgical companies etc.
In order to achieve the enterprise's strategic target---being stronger, larger, and superior, we continue to expand throughout the world's markets for power transmission and distribution area. And we also actively attach our team to competition, walking forward to the mission of "First-class worldwide transformer supplier"
Supply the guide drawings and installation manuals information directions on the method of handling, storage, mounting and erection of transformers.
Power equipment application:
Power-fossil fuel plant, Steel plant, Infrastructure- railway, international generation, substation, hydropower station, wind power substation, transmission and distribution.
We has excellent experience and good capacity in complete projects equipments in Generation, Substation, Transmission and Distribution from 400V-330kv, especially in Power plant, Substation construction and Transmission line, including of design, complete equipment, installation, Commissioningand after-sales service, and also design the complete Electrical Solutions according to customer's demand. We are mainly services to International State Power Board, Power Construction Contractor, Power Project Contractor, Factories and the Electric Power Project in the world.
In order to achieve the enterprise's strategic target---being stronger, larger, and superior, we continue to expand throughout the world's markets for power transmission and distribution area. And we also actively attach our team to competition, walking forward to the mission of "First-class worldwide electrical equipment supplier
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