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KYN28A-12 Armored Center-Mounted Metal-Enclosed Switchgear

KYN28A-12 Armored Center-Mounted Metal-Enclosed Switchgear

KYN28A-12 Armored Center-Mounted Metal-Enclosed Switchgear

The Armored Center-Mounted Metal-Enclosed Switchgear is an advanced indoor AC metal-clad switchgear designed for reliable power distribution, control, and protection. Operating at a predetermined frequency of 50Hz, this switchgear is suitable for power systems that require efficient reception and distribution of electric energy while ensuring comprehensive circuit protection and monitoring.

Specification

Technical parameters of switch equipment

project unit parameter
Rated voltage kV 3.6, 7.2, 12
Rated frequency Hz 50
Circuit breaker rated current A 630, 1250, 1600, 2000, 2500, 3150
Switch cabinet rated current A 630, 1250, 1600, 2000, 2500, 3150
Rated dynamic stable current (4s) kA 16, 20, 25, 31.5, 40, 50
Rated stable current (peak value) kA 40, 50, 63, 80, 100, 125
Rated short circuit breaking current KA 16, 20, 25, 31.5, 40, 50
Rated short circuit closing current (peak value) KA 40, 50, 63, 80, 100, 125
Rated insulation level 1min power frequency withstand voltage kV 24 32 42
Lightning shock withstand voltage 40 60 75
Protection level The enclosure IP4X, isolation room, circuit breaker room door is IP2X when it is opened

Technical parameters of VD4, VS1-12 vacuum circuit breaker

project unit parameter
Rated voltage KV 12
Rated frequency Hz 50
Circuit breaker rated current A 630, 1250, 1600, 2000, 2500, 3150
Rated dynamic stable current (4S) kA 16, 20, 25, 31.5, 40, 50
Rated stable current (peak value) kA 40, 50, 63, 80, 100, 125
Rated short circuit breaking current kA 16, 20, 25, 31.5, 40, 50
Rated short circuit closing current (peak value) kA 40, 50, 63, 80, 100, 125
Rated operating sequence Fen-0.3s-combination-180s-combination-50
Rated insulation level 1min power frequency withstand voltage KV 42
Lightning shock withstand voltage KV 75
Rated short circuit breaking current breaking times Second-rate 50
Mechanical life Second-rate 20000

Mechanical characteristics of VD4 and VS1 vacuum circuit breakers

project unit parameter
Contact distance mm 11±1
Super itinerary mm 4±0.5
Center distance between mm 210±0.5, 275±0.5
Bounce time of closing contact ms ≤2
Different periods of three-phase opening ms ≤2
Opening time
When the operating voltage is
Highest ms ≤50
Rated ms ≤50
lowest ms ≤60
Closed time ms ≤100
Average closing speed m/s 0.9-1.2
Average opening speed m/s 0.6-0.8
When the circuit breaker is used to control a 3~10kV motor, if the starting current is less than 600A, a metal zinc oxide lightning arrester must be added. The specific requirements of the user shall negotiate with our company: When the circuit breaker is used to open the capacitor bank,
The rated current of the capacitor should not be greater than 80% of the rated current of the circuit breaker.

Technical parameters of operating mechanism

project unit parameter
Rated operating voltage Close coil V AC/DC220,110
Opening coil V AC/DC220,110
Coil power Close coil W 245
Opening coil W 245
Energy storage motor power W 50
Rated voltage of energy storage motor V AC/DC220,110
Energy storage time s ≤10

Description

Key Features and Advantages

1. High-Performance Electrical System
The Armored Center-Mounted Metal-Enclosed Switchgear is engineered to provide stable and safe electric distribution. It meets stringent electric standards and is designed to handle varying operational demands with good performance. The switchgear ensures relatively small energy loss and relatively large operational efficiency, contributing to the stability of power systems.

2. Advanced Protection and Control
Equipment with modern protected relays and monitoring systems, the Armored Center-Mounted Metal-Enclosed Switchgear offers enhanced safety features. It protects electrical circuits against overcurrent, short circuits, and voltage fluctuations, ensuring smooth and secure operation. Its intelligent control systems allow for real-time monitoring and quick response to electrical faults, reducing downtime and maintenance costs.

3. Durable and Robust Construction
Designed for long-term reliability, the Armored Center-Mounted Metal-Enclosed Switchgear features a metal-clad, center-mounted enclosure that provides good performance mechanical strength and insulation. The armored casing ensures protection against external impacts, environmental hazards, and electrical faults, making it suitable for high-risk environments.

Operating Conditions
The Armored Center-Mounted Metal-Enclosed Switchgear is engineered to perform under a wide range of environmental conditions, including:
- Temperature Range: Operates efficiently within a the largest temperature of 40°C and a rudimentary temperature of -15°C. For special conditions, customized solutions allow operation at temperatures as low as -45°C.
- Humidity Tolerance: Designed for high humidity environments, with a daily average of ≤95% and a monthly average of ≤90%.
- Altitude Capability: Suitable for installations at altitudes of up to 1000m. For higher altitudes, adjustments can be made as per standard JB/Z102-71 regulations.
- Seismic Resistance: Built to withstand seismic intensity of up to 8 degrees, ensuring stability and durability in earthquake-prone regions.
- Pollution and Contaminant Resistance: The switchgear is designed to operate in environments free of corrosive or flamenable gases, excessive water vapor, and severe pollution.

Applications
The Armored Center-Mounted Metal-Enclosed Switchgear is a versatile solution for various industries and sectors, including:
- Power Generation and Distribution: Ensuring stable electrical flow and enhanced safety in power plants and substations.
- Industrial Facilities: Provide reliable circuit protection and power distribution for factories, refineries, and processing plants.
- Commercial Buildings: Enhancing electric safety and efficiency in large commercial establishments.
- Utility and Infrastructure Projects: Supporting the power requirements of smart grids, transportation hubs, and municipal infrastructures.

Compliance and Customization
The Armored Center-Mounted Metal-Enclosed Switchgear complies with industry standards, including GB3906. It can be customized to meet specific operational needs, ensuring optimal performance in unique environmental conditions. Users can consult manufacturers for tailored configurations when operating beyond standard conditions.

The Armored Center-Mounted Metal-Enclosed Switchgear is a high quality solution designed for efficient, safe, and reliable power distribution and protection. With its high-performance electric system, advanced safety features, and durable construction, it is ideal choice for diverse applications in demanding environments.

Certificate Of Honor
  • 2020 Assured Consumer Unit
  • Excellent Enterprise
  • Specialised, Specialised And New SMES
  • Autocoupled Reduced Voltage Starter Cabinet JZ1-22
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