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HV-LV Capacitor Bank Switchgear
HV/LV Capacitor Bank Switchgear

Scope of Application:Capacitor Bank Switchgear is designed for the safe switching, protection, and control of low-voltage (LV) and medium-voltage (MV) capacitor banks in industrial, commercial, and utility power systems. It ensures efficient reactive power compensation (RPC) to improve power factor, reduce energy losses, and enhance grid stability in compliance with IEC 60831, IEC 62271, and IEEE 18 standards.

LV Systems: 400V, 480V, 690V (50/60Hz)
HV Systems: 6.6kV, 11kV, 22kV, 33kV

Rated Current: 100A – 4000A (based on capacitor bank size)
Short-Circuit Withstand (IEC 62271): 25kA, 31.5kA, 50kA (1s or 3s)

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SF₆ Gas-Insulated Switchgear (GIS)
SF₆ Gas-Insulated Switchgear (GIS)

Scope of Application:SF₆ gas-insulated switchgear (GIS) is designed for 3.6kV to 800kV AC power systems, covering medium voltage (MV), high voltage (HV), and extra-high voltage (EHV) applications. It is particularly suited for space-constrained installations and mission-critical environments (e.g., urban grids, rail transit, offshore wind farms, industrial plants, and extreme climates), complying with IEC 62271-200/203.

Medium Voltage (MV): 3.6kV, 7.2kV,11KV, 12kV, 24kV, 36kV
High Voltage (HV): 72.5kV, 145kV, 245kV
Extra-High Voltage (EHV): 362kV, 420kV, 550kV, 800kV
Rated Current: 400A–6,300A (up to 8,000A for HV/EHV)
Short-Circuit Breaking Capacity: 16kA–80kA (1s thermal withstand)
Insulation Medium: SF₆ gas (rated filling pressure: 0.4–0.7MPa at 20°C)

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KYN28-12 Metal-Clad Withdrawable Medium Voltage Switchgear
3.3kV/6.6kV Explosion-Proof Switchgear

Scope of Application:The 3.3kV/6.6kV explosion-proof switchgear is designed for safe and reliable power distribution and control in hazardous environments where flammable gases, vapors, or dust may be present, such as oil refineries, chemical plants, mining operations, and other industrial facilities requiring ATEX or IECEx compliance.

Rated Voltage: 3.3kV / 6.6kV
Rated Current: 400A / 630A / 800A / 1250A (customizable)
Short-Circuit Current Rating (IEC 62271-100): 25kA / 31.5kA
Protection Degree: IP65 (IEC 60529)
Explosion-Proof Standard: IEC 60079 / ATEX / NEC (Class I, Division 1/2)
Operating Temperature: -20°C to +40°C

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KYN28-12 Metal-Clad Withdrawable Medium Voltage Switchgear
33kV high voltage switchgear

Scope of Application:The 33kV high-voltage switchgear is designed for power distribution and control in industrial plants, power generation stations, and substations. It serves as a key component in medium-capacity power distribution networks, ensuring reliable energy transmission, protection, and monitoring.

Rated Voltage: 33kV
Rated Current: 630A / 1250A / 1600A / 2000A / 2500A / 3150A
Rated Short-Circuit Breaking Current: 25kA / 31.5kA / 40kA
Rated Short-Time Withstand Current (1s/3s): 25kA / 31.5kA / 40kA
Rated Peak Withstand Current: 63kA / 80kA / 100kA
Insulation Level: Power frequency withstand voltage 70kV, lightning impulse withstand voltage 170kV
Protection Class: IP4X (enclosure) / IP2X (compartments)

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Low Voltage PV Grid-Connected Cabinet
Low Voltage PV Grid-Connected Cabinet

Scope of Application:Low Voltage PV Grid-Connected Cabinet is designed for distributed PV systems, including commercial, industrial, and residential applications. It provides safe grid connection, power metering, protection, and monitoring to ensure stable PV system operation.

Rated Voltage: AC 230/400V
Rated Current: 63A/100A/160A/250A/400A/630A
Protection Level: IP65
Grid Connection Type: Single-phase/Three-phase
Communication Interface: RS485/Ethernet
Compliance Standards: IEC 61439, GB/T 15576

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MNS low-voltage switchgear
MNS low-voltage switchgear

Scope of Application:The MNS low-voltage switchgear is a modular and reliable power distribution solution for industrial, commercial, and utility applications. Designed for AC 50/60Hz systems with voltages up to 690V and currents up to 6300A, it enables efficient power distribution, motor control, reactive compensation, and lighting management in modern electrical networks

Rated current: 630A–6300A
Rated short-time withstand current: 50kA–100kA (1s)
Protection level: IP30–IP54
Installation method: Fixed/withdrawable
Main busbar rated current: ≤6300A

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Ring Main Unit (RMU)
Ring Main Unit (RMU)

Scope of Application:The Ring Main Unit (RMU) is a compact switchgear device used in medium-voltage power distribution systems (typically 10kV–35kV). It is suitable for urban power grids, industrial parks, commercial buildings, rail transit, renewable energy generation, and other applications, enabling ring-network power supply, line protection, and power distribution.

Parameters:Rated Voltage: 10KV/11KV/12kV / 24kV / 40.5kV
Rated Current: 630A / 1250A / 2500A
Short-Circuit Breaking Capacity: 20kA / 25kA / 31.5kA
Protection Level: IP67 (gas compartment) / IP4X (cabinet)
Insulation Medium: SF6 / Vacuum / Dry Air / Solid Insulation

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KYN28-12 Metal-Clad Withdrawable Medium Voltage Switchgear
KYN28-12 Metal-Clad Withdrawable Medium Voltage Switchgear

Scope of ApplicationThe KYN28-12 metal-clad withdrawable switchgear is designed for three-phase AC power systems (50Hz or 60Hz, rated voltages of 3.6kV, 7.2kV, 10kV, 11kV, 12kV and 15kV), and is used for power distribution, control, and protection in power plants, substations, industrial plants, and critical infrastructure. It is especially suitable for frequent switching and high-reliability applications.

Rated Current: 630A, 1250A, 1600A, 2000A, 2500A, 3150A
Icw: 25kA/4s, 31.5kA/4s, 40kA/4s
Ipk: 63kA, 80kA, 100kA
IP Rating:IP4X P2X

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INDUSTRY NEWS More
Marine Switchboard
Marine Switchboard Market Share Analysis and Development Trend Analysis
Conclusion: European players maintain short-term dominance in premium segments, but Chinese manufacturers are rapidly gaining ground through cost and scale advantages. Future competition will center on smart functionalities, green compatibility, and modular innovation, with technological agility determining market repositioning.
2025/07/17
Switchgear
The market share of Chinese switchgear exported to Indonesia
China holds 60-70% of Indonesia's switchgear imports, led by cost-competitive LV/MV products. Key drivers: Indonesia's power demand growth (6-7%/year) and infrastructure projects. Challenges include local content rules (TKDN) and certification. Growth areas: renewables and smart grids. Chinese firms advance via tech upgrades and localized production.
2025/07/16
Control-Switchgear
Chinese-Developed Intelligent Power Distribution Switchgear Debuts at Munich Event
Munich, Germany – From June 24th to 27th local time, the 27th Laser World of Photonics was held at Messe München. ShengLong Electric showcased its self-developed AI-iPanel, the world's first artificial intelligence power distribution switchgear, attracting significant attention from global professionals.
2025/07/15
Fire-Rated Switchgear
Which places require Fire-Rated Switchgear?
Fire-Rated Switchgear (also known as Fire-Resistant Switchgear or Fire-Resistant Distribution Cabinets) are specially designed electrical enclosures. Their core function is to maintain the normal operation of internal electrical equipment for a specified duration (typically 30 minutes, 60 minutes, 90 minutes, or 120 minutes) during a fire, while preventing flames and hot gases from propagating through the enclosure to other areas. This provides critical time for personnel evacuation, firefighting operations, and the continued operation of essential equipment.
2025/07/14
technical knowledge More
Gas-Insulated Switchgear (GIS)
Gas-Insulated Switchgear (GIS) for High-Altitude Applications
For Gas-Insulated Switchgear (GIS), since the main live circuits are enclosed within sealed, gas-filled compartments and external connections utilize solid insulation, the insulation performance is unaffected by atmospheric pressure. The primary consideration for GIS at high altitudes is the mechanical strength of the gas enclosure (gas compartment).
2025/08/08
switchgear
What are the differences between IEC-standard switchgear and UL-standard switchgear?
IEC standard switchgear and UL standard switchgear (represented by UL1558 and UL891) fall under different technical systems in power systems, with differences mainly reflected in their standard frameworks, structural design, performance requirements, and applicable scenarios. The following is a comprehensive comparative analysis:
2025/08/08
Ring Main Unit
Technical Requirements and Specifications for 17.5kV Ring Main Units in the Saudi National Grid
SEC Specifications: 17.5kV Ring Main Unit (RMU) - Key Features         Outdoor Enclosure: Designed for outdoor installation.         Dedicated Cable Withstand Voltage Test Terminal Compartment: Features a separate, accessible compartment for cable high-potential (Hi-Pot) testing.         Self-Powered Protection Unit: Utilizes an internal power source for the protection relay.         SF6 Insulated, Single-Tank Design F+F+V Configuration: Common SF6 gas tank housing a combination of Load Switch (F) + Load Switch (F) + Circuit Breaker (V).         Ratings: Ring Switch Unit: 630A. Feeder Circuit Breaker: 200A.         Compliance Standard: SEC Standard 32-SDMS-11.
2025/08/08
Medium Voltage Switchgear
Medium Voltage Switchgear UL Standard Specifications
Switchgear destined for the North American market requires UL (Underwriters Laboratories) certification. UL is a U.S. safety certification organization. It develops its own standards, such as UL 891 (Dead-Front Distribution Switchboards), UL 67 (Panelboards), and UL 845 (Motor Control Centers), and also provides product certification services.
2025/08/07
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