KYN28A-12 Type Armored Removable AC Metal-Enclosed Switchgear
Brand: Henan Mingkong
Model: KYN28A-12
Product Type: Indoor Armored Removable AC Metal-Enclosed Switchgear
Rated Voltage: 12kV / 7.2kV / 3.6kV
Rated Current: Up to 3150A
Core Feature: IP4X protection rating enclosure (IP2X between compartments), compliant with GB3906, IEC60298 standards
Key Advantage: Withdrawable handcart design, five-proof interlock system
Application: Power plants, industrial substations, mining facilities, and 12kV distribution networks
Introduction
Product Overview
The KYN28A-12 armored removable AC metal-enclosed switchgear is a professional indoor medium-voltage power distribution device developed for 12kV three-phase 50Hz AC power systems. This high voltage switchgear is designed to meet the strict safety standards of global power distribution projects.
As one of the most popular 12kV withdrawable switchgears, it is widely used in power plants, industrial substations, mining enterprises, municipal power supply projects, commercial complex buildings and factory distribution rooms,
It undertaking important functions of power receiving, power distribution, circuit control, overload and short-circuit protection.
This industrial power distribution panel is manufactured in accordance with GB3906, GB/T11022, IEC60298 and DL/T404 international and national standards, with highly standardized design and reliable universal compatibility. It adopts full metal armored fully enclosed structure and independent three-compartment layout including busbar compartment, circuit breaker handcart compartment and cable compartment. Each compartment is isolated and sealed separately, which can effectively prevent fault arc diffusion, avoid phase-to-phase short circuit, and greatly improve the overall safety and stability of the medium-voltage switchgear system.
Adopting withdrawable handcart type design, the circuit breaker can be pushed in, pulled out and positioned flexibly. It realizes maintenance, inspection and replacement without cutting off the whole line power supply, which greatly reduces maintenance downtime and later operation cost. Matched with high-performance VS1 or VD4 vacuum circuit breaker, it has excellent arc extinguishing ability, strong breaking capacity, low operating noise and stable mechanical performance, with long service life and low failure rate.
This KYN28A-12 armored removable AC metal-enclosed switchgear has obvious comprehensive advantages compared with ordinary cabinet types. It is equipped with perfect five-proof mechanical interlock device, which can strictly prevent misoperation such as live switching, grounding closing with live line and live access, effectively protecting personnel and equipment safety. The overall protection level reaches IP4X for the cabinet body and IP2X between compartments, with good dustproof, anti-collision and anti-external interference ability, adapting to complex indoor working environments.
It supports multiple rated current and short-circuit breaking current specifications, which can meet the matching needs of conventional power distribution and large-current heavy-load occasions. The equipment operates stably under standard working conditions, suitable for installation areas with altitude below 1000m, ambient temperature from -15°C to +40°C, and environments without corrosive gas, explosive substances and severe vibration.
All KYN28A-12 switchgears are produced under strict ISO9001 quality management system. Every process from raw material incoming inspection, sheet metal processing, assembly wiring to factory withstand voltage test is strictly controlled. We support personalized customization of current specification, cabinet size, secondary loop scheme and intelligent monitoring configuration according to project requirements, providing one-stop high-voltage power distribution solution for global engineering projects.
Model meaning
Conditions of Use
- Altitude: no more than 1000m;
- Ambient temperature: upper limit +40°C, lower limit-15°C(under special process,up to-45°C);
- Relative humidity: daily average <95%.Monthly average≤90%;
- Seismic intensity: Anti-seismic;the seismic intensity does not exceed 8;
- Environmental conditions: The surrounding air should be free of corrosive or flammable gas,water vapor and other obvious pollution;
- No serious pollution and frequent severe vibration.Strict design under severe conditions meets Class 1 requirements;
- Useage under conditions specitied in GB3906 is to be negotiated betwe n the user and manufacturer
Designed to withstand harsh industrial conditions, this switchgear ensures reliable performance in diverse environments. Whether installed in high-humidity facilities, dusty factories, or temperature-fluctuating substations, it maintains stable operation and safety standards, reducing the risk of downtime.
Technical parameters
These parameters make the KYN28A-12 suitable for a wide range of applications, from standard distribution systems to heavy-load industrial setups. The high breaking capacity ensures protection against short-circuit faults, while the flexible current ratings allow customization to match specific project requirements.
VD4、VS1-12Vacuum circuit breaker technical parameters
VD4,VS1 Vacuum circuit breaker mechanical characteristics
The VS1/VD4 vacuum circuit breakers used in this switchgear offer exceptional arc extinguishing performance, ensuring safe and efficient operation. With minimal maintenance needs and a long service life, they contribute to the overall reliability and cost-effectiveness of the power distribution system.
When the circuit breaker is used to control a 3-10kV motor, if the starting current is less than 600A, metal zinc oxidearrester must be added. The specific requirements are to be negotiated by the user and our company: when the circuitbreaker is used to break the capacitor bank, the rated current of the capacitor should not be Greater than 80% of therated current of the circuit breaker.
Operating mechanism technical parameters
These operating mechanism parameters are designed for stable and responsive performance, supporting both AC and DC control voltages to meet diverse power system requirements.
Schematic diagram of switchgear
The schematic diagram provides a clear view of the switchgear’s internal structure and circuit layout, helping engineers quickly understand installation, operation, and maintenance procedures.
Related Products
These specifications ensure the KYN28A-12 armored removable AC metal-enclosed switchgear meets the safety requirements of global power distribution projects.
You may also be interested in our XGN17-40.5 fixed metal enclosed switchgear. We supply a full range of high voltage switchgear with custom design available for various power distribution projects.
