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Solid Insulated Switchgear is a switchgear which uses solid insulated materials as main insulating medium. Connect the vacuum arc-extinguishing chamber with its electric conduction, disconnector, grounding switches, main bus, branch main bus and other dominant electric circuits. After single or combination, cover it with insulated solid medium as one or multiple functional, recombinational or reextensible models with full insulation or full airtightness. The touchable model surface is coated with a conductive or semi-conductive shielding layer which can be directly and solidly grounded to the ring main unit.
JGSIS-12 Series Solid Insulated Switchgear is independently developed by
Jinguan Electric. Featuring modular design, this switchgear is small in size,
maintenance-free, easy to operate, safe and reliable and environmental-friendly
and can meet the demand of different power supply plans to the maximum degree.
The switchgear can be installed indoor or directly installed outdoor in a box.
|
S/N |
Item |
Unit |
Product Category |
||||
|
1 |
|
|
load switch |
Vacuum circuit breaker |
Composite apparatus |
||
|
2 |
Rated voltage |
kV |
12 |
||||
|
3 |
Arc extinction type |
|
Vacuum |
||||
|
4 |
Rated current |
A |
630 |
630/1250 |
125 |
||
|
5 |
Rated frequency |
Hz |
50 |
||||
|
6 |
1-min power frequency withstand voltage |
Phase to phase |
Fracture |
kV |
42/48 |
||
|
7 |
Lightning impulse withstand voltage |
Phase to phase |
Fracture |
kV |
75/85 |
||
|
8 |
Rated short-circuit open current |
kA |
|
20/25 |
31.5 |
||
|
9 |
Rated short-circuit closing current |
kA |
50 |
50/63 |
|
||
|
10 |
Rated duration of short-circuit |
s |
4 |
4 |
|
||
|
11 |
Rated short-time withstand current |
Dynamic stability |
kA |
20 |
20/25 |
|
|
|
12 |
Rated peak withstand current |
Thermal stability |
kA |
50 |
50/63 |
|
|
|
13 |
Rated cable-charging breaking current |
A |
10 |
10 |
|
||
|
14 |
Rated take-over current |
A |
|
|
3150 |
||
|
15 |
Partial discharge |
pc |
≤20 |
≤20 |
≤20 |
||
|
16 |
Enclosure protection class |
IP |
IP4X |
||||
|
17 |
Mechanical life |
Time |
10000 |
||||
|
18 |
External dimension: (width * depth * height) |
mm |
450*905*1500 |
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1. Eliminate the use of SF6 gas, thus reducing the emission of greenhouse gases and leakage of hazardous gases generated by SF6 gas decomposition and realizing truly safe, enthronement-friendly, innocuous and harmless application.
2. Avoid pressure gas tank design, eliminating the possibility of hazardous accidents caused by degrading insulating ability due to SF6 gas leakage.
3. Air insulation mode is adopted which will not give rise to air leakage and insulating ability degradation.
4. Live parts are sealed with epoxy to form a fully insulated and sealed structure of high IP grade.
5. Simple and reliable operating mechanism greatly improves the security.
6. Intensified phase-to-phase isolation and split-phase insulation design may prevent phase-to-phase faults.
7. Upper isolation design can realize ground closing and opening through the arc extinction chamber, which is in line with the grid safety design.
8. The modular structure contributes to loop expansion, unit exchange and plan alteration.
9. Three phases at the isolation switched fracture are independent and clear and the contact sites are directly visible and LED lighting is provided.
10. Complete mechanical interlock function, fully meeting interlocking protection requirements. Ensure operational safety.
11. Coated with semi-conductive shielding layer and reliably grounded, the module is touchable with higher security.
12. The bus cable adopts special flexible shielded cable, avoiding stress generated due to improper installation, thus improving the operational reliability.