KYN28A-24シリーズ金属被覆引出式開閉装置

KYN28A-24
KYN28A-24 Metal Armored Removable Switchgear (hereinafter referred to as KYN28A-24 switchgear) is suitable for three-phase AC 50Hz, 24kV single busbar and single busbar segmented power systems, used to receive and distribute electrical energy and control, protect and monitor circuits. It has a complete five prevention interlocking function. The movable part of the switchgear can be equipped with components such as vacuum circuit breakers and SF6 circuit breakers.
The KYN28A-24 switchgear is designed and manufactured in accordance with domestic and international standards such as IEC 62271-200, GB/T 3906, GB/T 11022, DL/T 404, and has passed comprehensive type tests by the National High Voltage Apparatus Quality Supervision and Testing Center.

Product Advantages
Fully metal armored and enclosed, the enclosure protection level reaches IP4X after closing the door, effectively ensuring personal safety and reliable equipment operation.
Complete, simple, and effective five prevention interlocking to prevent misoperation.
The handcart has good interchangeability, making it easy and smooth to move inside the cabinet.
Implement various operations of opening and closing the high-voltage chamber door.
The cable room has ample space, and the cable hanging height meets the standard requirements. It can connect multiple cables and is easy to install and maintain.
The movable parts of the handcart and the mechanical operation life of the grounding switch are both ≥ 3000 times, and the mechanical life of the circuit breaker is ≥ 10000 times, effectively ensuring the reliability of equipment operation.
Wide adaptability, capable of implementing various solutions to meet different user requirements.
Application Scenarios
This product can be applied in power plants, substations, industrial and mining enterprises, railway transportation, and high-rise buildings’ power distribution systems, used to receive and distribute electrical energy and control, protect, and monitor circuits.
Technical Specifications

Rated Voltage	kV	24
Rated frequency	Hz	50
Rated insulation level -1-minute power frequency withstand voltage (effective value) – phase to ground	kV	65
Rated insulation level -1-minute power frequency withstand voltage (effective value) – fracture surface	kV	79
Rated insulation level – Lightning impulse withstand voltage (peak) – Lightning impulse withstand voltage (peak) – To ground, phase to phase	kV	125
Rated insulation level – lightning impulse withstand voltage (peak) – fracture surface	kV	145
Rated current	A	630，1250，1600，2000，2500，3150，4000
Rated short-circuit breaking current	KA	25, 31.5, 40
Shell protection level/compartment protection level	–	IP4X/IP2X