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NSGTG-6.6
NSGTG-6.6 Solid Insulated Switchgear
The NSGTG-6.6 6.6kV harsh environment resistant switchgear is designed for 6.6kV medium-voltage power systems, a voltage level widely used in marine power systems, overseas industrial facilities, mining operations, and dedicated distribution networks. Unlike standard 6kV equipment, this switchgear is specifically optimized for internationally and industry-standard 6.6kV grids, ensuring compatibility and stable operation.
The NSGTG-6.6 harsh environment resistant switchgear supports ring networks, radial networks, and terminal supply configurations at the 6.6kV voltage level. Its sealed and compact construction enhances its resistance to moisture, dust, and vibration, enabling stable operation in harsh environments such as ships, offshore facilities, mines, and overseas industrial parks.
Designed according to the IEC 62271 international standard, this equipment is highly adaptable to global power distribution systems. With its precise 6.6kV voltage adaptability, excellent environmental adaptability, and reliable switching performance, the NSGTG-6.6 harsh environment resistant switchgear provides a reliable solution for dedicated medium-voltage distribution networks operating at 6.6kV.
Features
1. Optimized for 6.6kV Distribution Networks
The NSGTG-6.6 harsh environment resistant switchgear is specifically engineered for 6.6kV medium-voltage systems, commonly used in marine power systems, overseas industrial facilities, and mining operations. Its insulation parameters and conductor design are optimized for this voltage level, ensuring reliable performance in specialized distribution networks where standard 6kV equipment is not suitable.
2. Strong Environmental and Vibration Resistance
The reinforced enclosure and impact-resistant epoxy resin insulation allow stable operation in demanding environments. The switchgear can operate reliably in temperatures from −40°C to +75°C, high-vibration conditions such as ships and mining sites, and high-altitude locations up to 4500 meters.
3. Designed for International Projects
The switchgear complies with IEC 62271-200 and GB/T 11022 standards and can be configured to meet global project requirements. Its design supports international installation practices and export specifications, making it suitable for overseas industrial parks, power stations, and infrastructure projects.
4. Sealed Protection for Harsh Environments
With a protection rating of IP54 to IP65, the fully sealed solid insulation structure protects internal components from salt spray, humidity, dust, and mold. This makes the switchgear especially suitable for coastal areas, marine applications, chemical plants, and other corrosive environments.
5. Flexible Customization for Specialized Applications
The NSGTG-6.6 harsh environment resistant switchgear offers a high level of customization. Cabinet size, operating mechanisms, communication protocols, and protection configurations can be adapted to specific project requirements. Options include multilingual intelligent controllers, marine anti-vibration designs, and explosion-proof modules for specialized installations.
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Specification
| Name | Unit | Parameter | |||
| Rated voltage | kV | 6.6 | |||
| Rated frequency | Hz | 50 | |||
| Current rating | A | 630 | 1250 | ||
| Rated insulation level | Power frequency withstand voltage | Fracture | kV | 23 | |
| Fireline to Fireline | kV | 20 | |||
| Fireline to ground | kV | 20 | |||
| Withstand voltage for lightning impulses | Fracture | kV | 46 | ||
| Fireline to Fireline | kV | 40 | |||
| Fireline to ground | kV | 40 | |||
| Rated short-circuit interrupting current(1s) | kA | 20 | 25 | ||
| Rated short-time withstand current(4s) | kA | 20 | 25 | ||
| Rated peak withstand current(1p) | kA | 50 | 63 | ||
| Rated short-circuit closing current (peak)(1ma) | kA | 50 | 63 | ||
| Enclosure rating | IP4X | ||||
| Operating mode | Spring-loaded energy storage | ||||
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FAQs
Is the product suitable for marine use?
Adaptation, specially optimized for anti vibration and anti salt spray in ships, certified by classification societies, can be used for power distribution in ship decks, engine rooms, and other parts to resist vibration and marine salt spray erosion during ship navigation.
How to ensure the installation and after-sales service of overseas projects?
Provide English installation manuals and video guidance, dispatch technical personnel for overseas on-site debugging, and set up spare parts warehouses in key areas overseas to ensure timely after-sales response and solve export project operation and maintenance problems.
Can it be compatible with temporary use of 6kV distribution network system?
Long term compatibility is not recommended. The insulation parameters and conductor specifications of 6.6kV products are designed for 6.6kV, and long-term use in 6kV systems will reduce insulation redundancy and operational efficiency. If cross voltage use is required, an adapted version needs to be customized in advance.
How long can the salt spray resistance of the product last?
After special anti-corrosion treatment, it can maintain salt spray resistance for more than 10 years in marine atmospheric environment. Regular cleaning of the cabinet surface is sufficient without additional anti-corrosion maintenance.
What languages does the intelligent controller support?
Standard configuration includes bilingual Chinese and English, with the option to add Spanish, French, Arabic, and other languages as needed to meet the operational needs of projects in different countries. The interface is simple and easy to use.
Related Applications
Overseas Industrial Parks and Power Projects
Used in 6.6kV distribution networks for overseas industrial parks and small power stations, especially in regions such as Southeast Asia, Africa, and South America. The switchgear integrates easily with local power systems and provides reliable operation in environments with high temperatures, dust, and humidity.
Marine and Offshore Power Systems
Suitable for shipboard power systems and offshore engineering platforms. The reinforced enclosure and sealed insulation structure provide stable power distribution for propulsion systems, navigation equipment, and onboard facilities in high-vibration and high salt-spray environments.
Coastal Chemical and Industrial Parks
Designed for power distribution in coastal chemical and salt-processing facilities. The sealed solid insulation and corrosion-resistant structure ensure stable operation in environments with salt spray and corrosive gases, supporting continuous operation of chemical processing equipment.
Underground and Open-Pit Mining Power Distribution
Applicable to 6.6kV power distribution in underground and open-pit mining operations. The compact design allows installation in confined underground spaces while providing reliable power for mining machinery, ventilation systems, and drainage equipment in humid and dusty conditions.
