| Brand | ROCKWILL |
| Model NO. | Medium Voltage Switchgear Panel for Substation Distribution-12kV |
| Rated voltage | 12kV |
| Rated normal current | 630A |
| Rated frequency | 50Hz |
| Series | KYN28 |
It is a complete power distribution assembly suitable for 3.6~12kV, three-phase AC 50Hz, single bus sectionalized systems.It is mainly used for power transmission of small and medium-sized generators in power plants, power receiving and transmission in distribution systems and substations of industrial and mining enterprises, and starting of large high-voltage motors, so as to control, protect and monitor the power system.
The switchgear complies with IEC 62271-200 and GB/T 3906-2020 standards.In addition to the domestic VS1 vacuum circuit breaker, it can also be equipped with ABB VD4, Siemens 3AH5, domestic ZN65A, GE VB2 and other circuit breakers. It is an excellent performance power distribution equipment.
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Rated voltage |
kV |
3.6、7.2、12 |
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Rated frequency |
Hz |
50 |
|
|
Rated current of circuit breaker |
A |
630/4000 |
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|
Rated current of switchgear |
A |
630/4000 |
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Rated short-time withstand current (4S) |
kA |
20、25、31.5、40 |
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Rated peak withstand current (peak) |
kA |
50、63、80、100 |
|
|
Rated short-circuit breaking current |
kA |
20、25、31.5、40 |
|
|
Rated insulation level 1min power frequency withstand voltage |
Pole-to-pole / pole-to- ground |
kV |
24、32、42 |
|
Between open contacts |
kV |
24、32、48 |
|
|
Lightning impulse withstand voltage (peak) |
Pole-to-pole / pole-to- ground |
kV |
40、60、75 |
|
Between open contacts |
kV |
46、70、85 |
|
|
The shell is IP4X, and it is IP2X when the compartment door and circuit breaker chamber door are opened |
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Complies with IEC 62271-200 and GB/T 3906-2020 standards, ensuring full compliance with international and domestic requirements for indoor withdrawable switchgear assemblies.
Yes. Features free exchange of drawers — circuit breaker replacement is quick and convenient without specialized tools, reducing downtime and maintenance time.
Features high protection degree, protecting against intrusion of sundries and pests. The fully enclosed structure ensures personnel safety and equipment reliability.
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