Air-insulated metal-clad withdrawable switchgear 7.2kV 11kV 24KV

KYN28A-11/24KV(GZS1) air-insulated metal-clad withdrawable switchgear (hereinafter as “switchgear”) is a necessary indoor power distribution equipment 3-phase AC 50Hz. It is mainly used to receive and distribute 3-24kV network electrical and control protection and monitoring to line circuit. Relay chamber panel can install in various types of microprocessor based relay protection device , and can realize the intelligent control system, with remote control, telemetry, remote communication and remote transfer function, through the CAN communication interface with fieldbus control network to prevent the mal-operation of circuit breaker, to prevent pushing and pulling handcart with load, to prevent grounding switch closed with charged, to prevent the grounding switch in the grounding position transmission and to prevent into live space, which is referred to as the "five-anti" function. The cabinet is equipped with VS1 (ZN63), ZN12V vacuum circuit breaker, also can be equipped with imported VD4 vacuum circuit breaker and VC series vacuum contactor. The switchgear meet the requirements of standard IEC62271-200,IEC62271-100 etc.

• Withdrawable & Metal-clad Structure:Adopts a rugged metal-clad design with withdrawable circuit breaker trolley, enabling safe and convenient maintenance and replacement.
• Complete Five-Prevention Interlock System:Built-in reliable mechanical and electrical interlocks to prevent all kinds of misoperation, ensuring personnel and equipment safety.
• Intelligent & Automation Ready:Supports microcomputer protection devices and CAN bus communication, realizing remote control, telemetry, remote signaling and remote adjustment.
• Flexible Breaker Configuration:Compatible with domestic VS1/ZN12V and imported VD4 vacuum circuit breakers, as well as VC series vacuum contactors to meet different project needs.
• High Standard Compliance:Designed and tested in accordance with IEC62271-200, IEC62271-100 and other international standards for stable and reliable performance.
• Wide Voltage Application Range:Suitable for 3kV to 24kV medium-voltage power systems, with strong versatility for various power distribution scenarios.

KYN28A-12 metal clad switchgear electrical cubicle is applicable for 3.6kV ~ 12kV with three-phase AC 50Hz single bus or single bus sectional system. It is mainly used for substation and distribution system of power plants, substation, industrial and mining enterprises, building hotels, municipal construction and petrochemical sector as power receiving, power distribution and the circuitcontrolling, protection and monitoring.

• Ambient temperature:-10oC ~ +40oC;
• Altitude: Not exceed 1000m above sea level;
• Ambient humidity: Daily average RH ≤ 95%; Monthly average RH ≤ 90%
• Water vapor pressure:Daily average RH ≤ 2.2kPa; Monthly average RH ≤ 1.8kPa;
• No violent vibration, bumps and vertical gradient not more than 8° of place

 There may be condensation, when the temperature plunged with filth, the products apply to the following two conditions more severe than normal

• Condensation not frequently(average monthly  not more than two times) with mild pollution;
• There is no condensation (average yearly not more than two times) with serious pollution;

Note:

• Allow to -30℃ to storage and transportation.
• When  the area of altitude exceed 1000m , according to the JB/Z102 «high voltage electrical appliances using the technical requirements of the altitude» , when the altitude is not more than 2000m, low pressure auxiliary equipment does not need to take any measures.
• When the actual use conditions is different with the above mentioned information, the user and the manufacturer should be negotiated

Technical data

Vaccum Circuit Breaker

The enclosure is made of aluminium-zinc plated steel sheet by CNC machine, high precise dimension, short production cycle,excellent mechanical strength and nice appearance. The busbar compartment, VCB handc art compartment, cable compartment and relay compartment are separated by metal sheet. Flexible operation for handcart movement, clear position instruction, the earthing switch allow to making short circuit current and creditable mechanical interlock.