KYN61-40.5 시리즈 금속 외장형 인출식 배전반

KYN61-40.5
KYN61-40.5 Metal Armored Removable Switchgear (hereinafter referred to as KYN61-40.5 switchgear) is suitable for three-phase AC 50Hz, 40.5kV single busbar and single busbar segmented power systems, used for receiving and distributing electrical energy and controlling, protecting, and monitoring 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 KYN61-40.5 switchgear is designed and manufactured in accordance with domestic and foreign 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 circuit breaker handcart adopts a floor standing structure, with good interchangeability and easy and smooth movement inside the cabinet.
The busbar room, handcart room, and cable room are all equipped with pressure release channels, which can effectively ensure the safety of personnel and surrounding equipment in case of accidents.
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.
Good insulation measures for the main circuit make the switchgear structure compact, save floor space, and meet the 18 anti accident measures requirements of State Grid.
Application Scenarios
This product can be applied to substations and substations of Guonan two networks, power plants such as hydropower, thermal power, and nuclear power, industrial and mining enterprises such as metallurgy, petrochemicals, coal mines, paper mills, cement plants, tobacco, medicine, and automobile manufacturing, new energy industries such as photovoltaics and wind power, and transmission and distribution systems of high-rise buildings. It is used to receive and distribute electrical energy and control, protect, and monitor circuits.
Technical Specifications

Parameter name	Unit	Parameter value
Rated Voltage	kV	40.5
Rated frequency	Hz	50
Rated insulation level -1-minute power frequency withstand voltage (effective value) – phase to ground	kV	95
Rated insulation level -1-minute power frequency withstand voltage (effective value) – fracture surface	kV	118
Rated insulation level – Lightning impulse withstand voltage (peak) – Lightning impulse withstand voltage (peak) – To ground, phase to phase	kV	185
Rated insulation level – lightning impulse withstand voltage (peak) – fracture surface	kV	215
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