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Dis Sub-12 SF6 Gas Insulated Switchgear
Dis sub ring main unit series are gas insulated & enclosed metal switchgear which are all for independent research and development productions.
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Ring Main Unit
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Dis Sub-12 SF6 Gas Insulated Switchgear
DETAIL
Product Introduction
Dis sub ring main unit series are gas insulated & enclosed metal switchgear which are all for independent research and development productions. This switchgear adopts SF6 gas as the insulating and breaking medium, load switch, vacuum circuit breaker and electrified busbar are sealed in one full-sealed stainless cabinet with fixed pressure. Externally, the us&european standard bushing are connected with in and out cables through cable connectors to form an full-sealed and insulated structure which can effectively prevent flood and resist stains, and suitable for all kinds of serious environments, and also widely used for 12kv ring network power supply or terminal power supply systems.
Product Features
Maintance Free
SF6 gas, movable and fixed contacts, arc-extinguishing chamber and busbar are sealed in one gas box. Maintance-free life is 30 years.
Reliable Mechanical Interlock
It has many reliable mechanical interlock and simulation identification on the cabinet panel to ensure safe operation.
Full-Sealed And Insulated In-Out Cables
Adopting corresponding full-sealed and insulated cable connectors as the requirements of users. Electrified display functions can show status of each circuit exactly.
Modularized And Expansible
Combination of expansible modules, one box contain 5 modules maximally, and contain more modules through the extension of busbar.
Multiply Connection Schemes
As the requirement of users,adopting load switch,load switch+fusible cutout, or vacuum circuit breaker combinations to meet the needs of various incoming and feeder line circuit.
Visible Open Connects
Through the observation window on the panel, we can see the open connects of load switch or the positions of grounding switch.
Electric Operation, FTU
Adopting special voltage transformers to collect electricity, provide power supply for operating mechanism and ftu, and measure the signals of protective voltage. Install the special battery and charging modules to ensure the continuous power supply for operating power resource and ftu. Supporting ftu mechanism with corresponding functions according to the requirements of users.
Technical Parameter
|
Items |
Unit |
Parameter |
|
|
Rated voltage |
KV |
12 |
|
|
Rated current |
A |
630 |
|
|
Rated frequency |
Hz |
50 |
|
|
Rated insulation level |
1min power frequency withstand voltage: ph-ground，ph-ph/break |
KV |
42/48 |
|
|
Lighting impluse withstand voltage: ph-ground,ph-ph/break |
|
75/85 |
|
Rated short time withstand current(main circuit and ground circuit) |
KA |
20 |
|
|
Rated peak withstand current |
KA |
50 |
|
|
Rated short time withstand current |
s |
4 |
|
|
Rated therrnal stability current |
KA |
20 |
|
|
Rated dynamic current |
KA |
50 |
|
|
Rated current of fuse circuit（max） |
A |
125 |
|
|
Rated transfer current |
A |
1700 |
|
|
Breaking capability of vacuum circuit breaker |
KA |
20 |
|
|
Load switch mechanical lifespan |
TIME |
10000 |
|
|
Mechanical lifespan of vacuum circuit breaker |
TIME |
10000 |
|
|
Mechanical lifespan of grounding switch |
TIME |
5000 |
|
|
SF6 rated pressure（20℃) |
MPa |
0.04 |
|
|
SF6 annual leakage ratio |
% |
≤0.01 |
|
|
Voltage of operational power supply |
V |
24V/48V DC |
|
|
|
|
220V AC |
|
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Online consultation
Add: Changfeng Industrial Park, Pingshui Town, Shaoxing
Phone：+8613957536561
WhatsApp：+8613957536561
E-mail：hongbo@zjhbdlkj.com