Indoor Removable AC Metal-Enclosed Switchgear
KYN28A-12 Indoor Removable AC Metal-Enclosed Switchgear It is a complete power distribution device for 3.6-12kV three-phase AC 50Hz single busbar and busbar segment system. KYN28A-12 switchgear is mainly used for power generation, power transmission of small and medium generators, power...
Description
KYN28A-12 Indoor Removable AC Metal-Enclosed Switchgear
It is a complete power distribution device for 3.6-12kV three-phase AC 50Hz single busbar and busbar segment system. KYN28A-12 switchgear is mainly used for power generation, power transmission of small and medium generators, power distribution of industrial and mining enterprises, and secondary substations of electric power systems, power transmission and large-scale high-voltage motor starting, etc.
Main technical parameters | |||
Rated voltage | kV | 3.6,7.2,12 | |
Rated frequency | Hz | 50 | |
Rated current of circuit breaker | A | 630/4000 | |
Rated current of switchgear | A | 630/4000 | |
Rated short-time withstand current (4S) | kA | 20,25,31.5,40 | |
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 | |||
Conditions of Use
Ambient temperature: -20℃～+40℃.
The altitude does not exceed 2000M.
The relative humidity of the surrounding air is not more than 95% (at 25°C).
There is no danger of gas and coal dust explosion and no violent vibration in the mine.
In the absence of sufficient gases and vapors to corrode metals and destroy insulation.
Please provide the following technical information when ordering KYN28-12 switchgear:
1. Primary circuit system diagram, rated short-circuit breaking current, rated current, rated voltage, current transformer ratio, rated current of each feeder circuit, voltage transformer ratio, and other major electrical components model specifications.
2. The principle and terminal layout of the secondary circuit scheme selected for each cabinet
3. Switchgear arrangement and floor plan
4. The main bus is expensive and
5. Small busbar layout
6. Summary table of electrical devices
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