High Voltage Switchgear
KYN28A-12 indoor switchgear is for 3.6~12kV systems, used for power receiving, distribution and protection indoors.It has five anti-misoperation functions, supports imported vacuum circuit breakers, and meets national standards with type tests passed.
Fully meets the differentiated needs of different users for switchgear.
Realizes electrical interlocking between the earthing switch and other cabinets.
Ensures the safety of personnel and equipment.
Technical Parameters
Perfect Coordination
Achieves perfect coordination between the main circuit and control circuit.
Space-Saving Mounting
Supports wall-mounted and back-to-back installation to reduce floor space.
Safe Interchange
Ensures free interchangeability of same-specification trolleys, while different-specification trolleys cannot enter the working position.
Technical Parameters
Technical Specification
| Item | Unit | Parameter | |
| Rated Frequency | Hz | 50 | |
| Rated Voltage | kV | 12 | |
| Rated Insulation Level | Withstand Voltage (1min)） | kV | 42(phase to earth & phase to phase) |
| 48(isolating break) | |||
| Rated Lightning Impulse Withstand Voltage | kV | 75(phase to earth & phase to phase) | |
| 85(isolating break) | |||
| Rated Current of Main Busbar | A | 630、1250 | |
| Rated Current of Branch Busbar | A | 630、1250 | |
| Rated Short-time Withstand Current (4s) | kA | 16、20、25、31.5 | |
| Rated Peak Withstand Current | 40、50、63、80 | ||
| Degree of Protection | Enclosure IP41, Compartment IP2X | ||
