Product characteristics of KYN28A-12 metal armored withdrawable switchgear - safe and reliable
It has reliable "five prevention" interlocking, which can effectively prevent misoperation. The shell of each unit is independently grounded, and all three chambers are equipped with upward pressure release channels to ensure the safety of operators. All functional operations, including opening and closing the circuit breaker, pushing and removing the handcart, and operating the grounding switch, can be carried out with the panel closed. The panel observation window is clear, making it easy to observe the position, opening and closing, grounding status, and cable connection status of the circuit breaker, facilitating inspection and monitoring, The KYN28A-12 metal armored withdrawable switchgear is tightly packaged with a protection level of IP4X. The KYN28A-12 metal armored withdrawable switchgear is both convenient and practical, equipped with industry standard accessories, and has strong universality. It can be matched with cable terminal blocks in various industries and can connect multiple cables. The KYN28A-12 metal armored withdrawable switchgear can be used with widely used domestic VS1, VSm vacuum circuit breakers, ABB VD4, 3AH5, and domestic ZN65A vacuum circuit breakers. Regardless of which type of circuit breaker is selected, the air insulation distance of the exposed conductor of the KYN28A-12 metal armored withdrawable switchgear can be guaranteed to be greater than 125 millimeters, and the composite insulation can be greater than 60 millimeters. Its circuit breaker has the unique advantages of long service life, high parameters, low maintenance, and small size. The configured circuit breaker can be used to control and protect power equipment, such as transformers, capacitors, cables, and overhead lines. The cabinet width with a rated current of 3150A and a breaking current of 31.5KA is only 800 millimeters.
KYN28A-12 metal armored withdrawable switchgear - advanced technology
The use of heat shrink insulation materials makes the cabinet structure compact and occupies a small area. The product shell is completely made of aluminum zinc coated steel plate, processed by CNC machine tools, and assembled by bolts. High mechanical strength effectively ensures the cleanliness and aesthetics of the product. The cabinet door is coated with plastic, which has strong impact resistance and corrosion resistance. The high-voltage live display device should meet the requirements of SD334-89 "Technical Conditions for High Voltage Live Display Devices". Pillar insulated sensors and displays should undergo insulation and withstand voltage tests together with high-voltage switchgear. Display devices installed on high-voltage switchgear should emit light normally at 65% of the rated phase voltage; The forced locking used should act reliably, and the mechanical program lock used in the locking device should comply with the requirements of JB/DQ2182-87 "General Technical Conditions for Mechanical Locks for High Voltage Switchgear". When operating the program, the program lock should be flexibly and reliably opened, and the key can be freely inserted and removed without getting stuck. During non program operation, the switchgear shall not be operated. The electromagnetic lock used in the locking device of KYN28A-12 metal armored withdrawable switchgear shall comply with the requirements of JB/DQ2181-87 "Technical Conditions for Electromagnetic Locks for High Voltage Switchgear". The locking device of KYN28A-12 metal armored withdrawable switchgear shall meet the requirements of switchgear program operation, and its locking position shall be consistent with the actual position of the operating mechanism of the locked switchgear; When the program operation is not fully specified, the operation cannot continue; If it is a non program operation, the operation should be automatically disabled. When using an electrical lockout scheme, the power supply of the lockout component should be separated from the relay protection circuit. The locking circuit and contacts should meet the locking requirements. The wiring should be reasonable, the locking element housing should be reliably grounded, and various locking devices should have dedicated unlocking tools. Non dedicated tools should not be unlocked. The mechanical test of the locking device directly connected to the operating mechanism of the KYN28A-12 metal armored withdrawable switchgear should be conducted simultaneously with the mechanical operation test of the switchgear; If there is no mechanical direct connection with the switchgear mechanism, it can be carried out in the later stage of the switchgear or after mechanical operation testing. Program and non program operations can be carried out according to the specified number of times. The program should run smoothly, and the operating mechanism and locking components should not be blocked or fail. Normal operating force should be applied when the program is not running, and the device should be reliably locked. After the experiment, the device must not deform or be damaged.
