KYN28-24 Armored removable AC metal-enclosed switchgear
Category:
Keywords: Electrical Equipment
- Description
KYN28-24 Armored removable AC metal-enclosed switchgear
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- Commodity name: KYN28-24 Armored removable AC metal-enclosed switchgear
KYN28-24 Armored Withdrawable AC Metal-Enclosed Switchgear (hereinafter referred to as “switchgear”) is suitable for indoor three-phase power systems with a frequency of 50/60 Hz and a rated voltage of 24 kV. It is primarily used in power plants, substations, industrial and mining enterprises, and high-rise buildings for receiving and distributing electrical energy, as well as for circuit control, protection, and monitoring.
Overview
KYN28-24 Armored Withdrawable AC Metal-Enclosed Switchgear (hereinafter referred to as “switchgear”) is suitable for indoor three-phase power systems with a frequency of 50/60 Hz and a rated voltage of 24 kV. It is primarily used in power plants, substations, industrial and mining enterprises, and high-rise buildings for receiving and distributing electrical energy, as well as for circuit control, protection, and monitoring.
The KYN28-24 switchgear is equipped with a comprehensive suite of interlocks to prevent misoperations, including interlocks that prohibit the movement of the handcart under load, prevent the grounding switch from being closed while the circuit breaker is in the closed position, prevent the grounding switch from being closed when the system is energized, and prevent unauthorized entry into energized compartments. The switchgear is configured with high-performance VS1 and VN2 series center-mounted high-voltage AC vacuum circuit breakers as well as solid-sealed vacuum switches. Its secondary control circuit incorporates advanced and reliable control and protection devices. The busbars are insulated using heat-shrinkable materials or epoxy coating, with optimized electrode geometry and a compact cabinet structure. As a result, this switchgear is a technologically advanced, stable-performing, reasonably designed, easy-to-use, safe, and reliable distribution device.Model Meaning
Environmental conditions
◆ Environmental conditions: maximum temperature +40°C, minimum temperature -15°C, with the 24-hour average not exceeding 35°C;
◆ The temperature conditions are as follows: the daily average relative humidity shall not exceed 95%; the monthly average relative humidity shall not exceed 90%; the daily average water vapor pressure shall not exceed 2.2 kPa; and the monthly average water vapor pressure shall not exceed 1.8 kPa.
◆ Altitude not exceeding 1000 m;
◆ The surrounding air is not significantly contaminated by dust, smoke, corrosive or flammable gases, vapors, or salt spray;
◆ Vibrations or ground motions originating from outside the switchgear and control equipment may be disregarded;
◆ The amplitude of electromagnetic interference induced in the secondary system shall not exceed 1.6 kV.Terms of Use
When the equipment is operated under normal ambient conditions as specified in GB/T 11022, the manufacturer and the user may negotiate and reach an agreement on special operating conditions that exceed the normal operating limits. To prevent condensation, the switchgear is equipped with a heater, which shall be energized whenever the switchgear is in standby mode. During normal operation, attention should also be paid to ensuring that the heater is properly energized.
Main Technical Parameters of Switchgear
Project Unit Parameters Rated voltage kilovolt 24 Rated frequency Hertz 50/60 Rated Insulation Level Lightning Impulse Withstand Voltage (Peak) kilovolt Phase-to-phase and phase-to-ground 60 Isolation fracture 79 1-minute power-frequency withstand voltage (RMS) kilovolt Phase-to-phase and phase-to-ground 125 Isolation fracture 145 Power-frequency withstand voltage of the auxiliary control circuit V 2000 Rated current A 630, 1250, 1600, 2000, 2500, 3150 Rated short-circuit breaking current kA 20 31.5 Rated Short-Circuit Making Current (Peak) kA 50 80 Note: The depth of the overhead incoming and outgoing switchgear cabinet is 2,360 mm.
Project Unit Parameters Rated short-time withstand current (4 s) kA 20 31.5 Rated Peak Withstand Current kA 50 80 Rated Voltage of the Auxiliary Control Circuit V DC or AC 110/220 Protection Level IP4X (with the circuit breaker compartment door open, or with IP2X between compartments) External dimensions (width × depth × height) mm 800×1810×2380 1000×1810×2380 Weight kilogram 840~1440 Note: The depth of the overhead incoming and outgoing switchgear cabinet is 2,360 mm.
Main Technical Parameters of VS1-24 and VN2-24 Vacuum Circuit Breakers
Project Unit Parameters Rated voltage kilovolt 24 Rated
Insulation level1-minute power-frequency withstand voltage (RMS) kilovolt 60 Lightning Impulse Withstand Voltage (Peak) kilovolt 125 Rated frequency Hertz 50/60 Rated current A 630, 1250, 1600, 2000 630, 1250, 1600, 2000, 2500, 3150 Rated short-circuit breaking current kA 20 31.5 Rated Short-Circuit Making Current (Peak) kA 50 80 Rated short-time withstand current (4 s) kA 20 31.5 Rated Peak Withstand Current kA 50 80 Rated breaking current of a single capacitor bank A 630 Rated back-to-back capacitor bank breaking current A 400 Rated short-circuit breaking current breaking operations next 50 Mechanical life next 20000 Rated Operating Sequence O-0.3s-CO-180s-CO
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Henan Jinyu Electric Co., Ltd.
Service Hotline:400-688-0375
Tel:+86-18103909516
Email:hnjydq1999@126.com
Address: South Section of Chuangye Road, Ji County Industrial Cluster, Henan Province, Central Plains Electric City
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