KYN28A-12 Indoor AC metal armored draw out switchgear
1. Scope of use
KYN28A-12 indoor AC metal armoured draw out switchgear is a 3-10kV three-phase AC 50HZ power transmission and distribution control device for receiving and distributing electric energy and single bus section. It is mainly used for power transmission of power plants, substations, power distribution of industrial and mining enterprises and the control, protection and detection of power receiving, power transmission and large high-voltage electric starting of secondary substations of electric power systems.
2. Product standards
The switchgear shall comply with IEC298 AC Metal Enclosed Metal Switchgear and Control Equipment with Rated Voltages above 1KV and below 52KV, IEC694 Common Terms for High Voltage Switchgear and Control Equipment, GB3906 3-35KV AC Metal Enclosed Switchgear and DI404 Ordering Conditions for Indoor AC High Voltage Switchgear.
3. Technical measures
| No. |
Specification |
Unit |
Technical parameters |
| 1 |
Rated voltage |
KV |
3.6, 7.2, 12 |
| 2 |
Rated current |
A |
630 - 3150 |
| 3 |
Rated short-circuit breaking current |
KA |
25, 31.5, 40,50 |
| 4 |
Rated short-circuit making current |
KA |
63, 80, 100, 125 |
| 5 |
Rated dynamic stability current |
KA |
63, 80, 100, 125 |
| 6 |
Rated thermal stability current |
KA |
25, 31.5, 40, 50 |
| 7 |
Rated thermal stability time |
S |
4 |
| 8 |
Protection grade |
|
IP2X, IP3X, IP4X |
| 9 |
Operation mode |
|
Spring energy storage type |
| 10 |
Overall dimensions (L x W x H) |
mm |
800x1500x2200; 1000X1650x2200 |
Audited Supplier 
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