| Brand | ROCKWILL |
| Model NO. | 11kV Totally Enclosed Ring Main Unit (RMU) |
| Rated voltage | 11kV |
| Rated frequency | 50Hz |
| Series | RMR |
Product Description
We always aim at honesty, truth-seeking, pragmatism, and a strong brand to promote the healthy and rapid development of the Single phase immersion oil transformer, electrical switchgears, Compact Prefabricated Substation industry and are committed to providing customers with high-quality products and first-class services. We sincerely hope to establish a long-term cooperation in the future. Our company's innovative business philosophy has the advantage of integrating resources, advancing with the times, serving the enterprise, and contributing to the society. Our company has advanced processing equipment and first-class testing instruments to ensure reliable quality of the product.
11kV SF6 Ring Main Unit
Service environment:
a) Air temperature: highest temperature: +40℃; lowest temperature: -25℃
b) Humidity: monthly average humidity 95%; daily average humidity 90%.
c) Altitude: Maximum installation height: 2500m
d) Obviously there is no ambient air polluted by corrosive and combustible gases, steam, etc.
e) No frequent violent shaking
Product Parameters
|
Item |
C module |
F module |
V module |
|
|
Load switch |
Combined electrical apparatus |
Vacuum switch |
Isolated/grounding switch |
|
|
Rated voltage(KV) |
12/24 |
12/24 |
12/24 |
12/24 |
|
Power frequency withst and voltage(KV) |
42/50 |
42/50 |
42/50 |
42/50 |
|
Lightning impulse withst and voltage(KV) |
95/125 |
95/125 |
95/125 |
95/125 |
|
Rated current(A) |
630 to 1250 |
630 to 1250 |
630 to 1250 |
|
|
Closed-loop open circuit current(A) |
630/630 |
|||
|
Cable charging breaking current(A) |
135/135 |
|||
|
5% rated active load breaking current(A) |
31.5 |
|||
|
Earthing fault breaking current(A) |
200/150 |
|||
|
Earthing fault cable charging breaking current(A) |
115/87 |
|||
|
short circuit breaking current |
20/16 |
20/16 |
||
|
Closing capacity |
63/52.5 |
50/40 |
50/40 |
50/40 |
|
Short-time withst and current 2s |
25 |
|||
|
Short-time with stand current 3s |
21 |
20/16 |
20/16 |
|
|
Mechanical life(time) |
5000 |
3000 |
5000 |
2000 |