| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
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420kV series GIS
1.Special design for voltage of 420kV
2. Single-phase encapsulated structure
3. High capacity of current-carrying,reduced dimension of bays,minimal footprint
4. Two kinds of circuit breakers:singl e break or double break,provided with hydraulic or spring operating mechanisms
5. Horizontal circuit breaker in low position to facilitate repair and patrol
6. Spacers with metal loop,high in anti-interference and reliable in earthing
Disconnector and earthing switch provided with straight coupling motor mechanism.Fast earthing switch provided with motor spring operating mechanism,straight connected with body reliably.
Main Technical Data of 420kV GIS
| ltem | Unit | Data |
||
Rated voltage |
kV | 363 | ||
Rated current |
A | 4000,5000,6000 | ||
Rated frequency |
Hz | 5,060 | ||
Rated short circuit breaking current |
kA | 50 | 63 | |
| Rated short-time withstand current and dur ation | kA/s |
50/3 | 63/3 | |
Rated peak withstand current |
kA | 125 | 160 | |
Rated short circuit making current |
kA | 125 | 160 | |
Number of breaks |
EA | 1 | 2 | |
| Rated lightning impulse withstand voltage |
To earth | kV | 1175 | |
| Across breaks | kV | 1175+295 | ||
| Rated short time power frequency withstand voltage |
To earth | kV | 520 | |
| Across breaks | kV | 520+210 | ||
| Rated switching impulse withstand voltage |
To earth | kV | 950 | |
| Across breaks | kV | 950+295 | ||
1.Our company provides you with project design and process design, and designs and manufactures products according to your equipment purchase plan and specific needs. And train technical and operating personnel for you.
2.The newly purchased products are provided with online assistance for installation and debugging. The products are under the lifelong service system. If problems occur in normal use, we will provide solutions within one working day after receiving user's feedback. We will try our best to get the product up and running as soon as possible. And there are regular visits by professional technicians to ensure the long-term, safe and reliable use of our products.
3.We use quality authentic materials, process and manufacture in strict compliance with ISO9001:2000 international quality management to ensure the quality of excellence and the smooth installation!
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