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Service
Company name: henan pinggao electric co. LTD
Address: Henan province of pingdingshan city
south ring road 22
Mail editor: 467000
E - mail : pinggao@pinggao.esgcc.com.cn
400-6700-312
If you need to consult other business, you can call the hotline directly.
General department: +86-375-3804029
Securities department: +86-375-3804064
Sales: +86-375-3803888
Customer service center: 400-6700-312
PRODUCT
PRODUCTS
ZGW6-816/J6300-25 type Disconnector
Products application
ZGW6-816/J6300-25 high voltage DC disconnector(ZGW6-816 disconnector in short) is installed at ± 800 kV converter station on the polar side of DC field and high voltage side of DC filter, used for circuit switch under the condition of no load flow, to make the electrical isolation between the high voltage and high voltage busbar, converter valve, flat wave reactor and other electrical equipments which are in the maintenance, to provide a qualified, safe and visible insulation distance. working conditions to the maintenance equipment and maintenance staff . The disconnector which is installed on the high voltage side of DC filter has the ability of opening and closing the harmonic current.
Service environment
a) The surrounding air temperature: -40℃～+40℃
b) Altitude: ≤1000m
c) Wind speed: ≤34m/s
d) Icing-thickness: ≤10mm
f) Anti-seismic ability: AG3
g) The installation site should be free of severe vibration and flammable, explosive materials and chemical corrosion.
Technical parameters
|
Specifications |
Unit |
Value |
|
|
Product type |
|
ZGW6-816 |
|
|
Rated DC voltage |
kV |
816 |
|
|
Rated current |
A |
6 300 |
|
|
Rated insulation level |
60 min DC withstand voltage |
kV |
1 200 |
|
Rated lightning impulse withstand voltage（peak1.2/50ms） |
kV |
1 950 |
|
|
Rated operating impulse withstand voltage（peak250/2500ms） |
kV |
1 600 |
|
|
Opening and closing DC filter ability of disconnector |
A |
200 |
|
|
Rate peak withstand current |
kA |
63 |
|
|
Rated short-time withstand current（3 s） |
kA |
25 |
|
|
Mechanical life |
time |
3 000 |
|
|
The minimum air insulation distance between the fracture of disconnector |
mm |
5 800 |
|
|
the minimum air insulation distance of disconnector to ground |
mm |
9 600 |
|
|
Rated terminal static mechanical load |
N |
longitudinal |
|
Product structure
ZGW6-816 adopts the double column single-arm folding plug-in structure, composed of conductive system, supporting insulator, base, operational mechanism and other components, the movement is to rely on CJ11A motor operating mechanism to make opening, closing operation.
Main Features
1. ZGW6-816/J6300-25 high voltage DC disconnector adopts double column single arm folding plug-in structure, this Uhv DC disconnector is developed by our company independently and we have the full intellectual property rights.
2. The overall structure of the product is manipulator single arm folding type, advanced design principle.
3. The dynamic and static contact of conductive system is the sealing structure, can effectively reduce the influence of external environment to contact finger.
4. The use of plug-in structure and the main and auxiliary touch is to ensure the reliable opening and closing of contact finger of disconnector, after closing, will always remain in good working condition.
5. The main contact adopts plum flower ring structure, guarantee the multipoint contact and can meet the run demand of large current for a long time