NSGTG solid insulated AC metal ring network switchgear is a fully insulated, fully sealed, maintenance-free solid insulated vacuum switchgear. All high-voltage live parts are cast with epoxy resin materials with excellent insulation properties, and the vacuum interrupter, the main electrical circuit, and the insulation support are organically combined into a whole, and the functional units are connected by a fully insulated solid busbar. As a result, the entire switchgear is not affected by the external environment, which ensures reliable operation and operator safety.
According to the type of switch, it is divided into load switch with grounding assembly (referred to as C module), load switch without grounding assembly (referred to as CB module), circuit breaker with grounding assembly (referred to as V module), circuit breaker without grounding assembly (referred to as VB module), circuit breaker contact switch (referred to as VZ module), load switch + fuse combination electrical switch assembly (referred to as F module), disconnector assembly (referred to as G module).
Product model description:
NSGTG X - 12 / 630(1250) / X X X
1 2 3 4 5 6 7
| 1:Solid insulated AC metal ring switchgear |
5.Switch Category:
C-Load Switch; V-circuit breaker; G-disconnector;
F-load switch-fuse combination electrical switch;
CB-load switch without grounding; VB-Circuit Breaker without grounding |
6.VZ-Circuit Breaker Contact Switch
Rated short-time withstand current (20,25kA) |
7. B:Without grounding switch;
Z: Straight out of the line |
The ring main unit has the characteristics of simple structure, flexible operation, reliable interlocking, convenient installation, etc., suitable for 50Hz, 12kV power system, widely used in industrial and civil cable ring network and distribution network terminal engineering, as the acceptance and distribution of electric energy, especially suitable for urban residential power distribution, small substations, opening and closing stations, cable branch boxes, box-type substations, industrial and mining enterprises, shopping malls, airports, subways, wind power generation, hospitals, stadiums, railways, tunnels and other places.
Because the product has the advantages of full insulation, full sealing and full shielding, it is especially suitable for use in areas with harsh environments such as high altitude, high temperature, humid heat, severe cold and serious pollution.
1.The isolation knife can be seen as a fracture:
There is an obvious visual window of isolation fracture in front of the cabinet, which can view the isolation position, isolation position, and grounding position.The three working positions are convenient for the on-site staff to overhaul and determine the position of the isolation knife, which is very safe.
2:Internal combustion arc design
Internal arc pressure valve: when there is an arc inside the product, the pressure will be released from this pressure release valve.The arc is discharged to the cable trench to avoid accidental injury to the operation.
3:Green and environmentally friendly
It is designed with environmentally friendly materials, and does not use SF6 gas as an arc extinguishing medium and insulation, so it does not have a good impact on the environment Contamination, the primary circuit is designed with minimal contacts to ensure low energy consumption during operation.
| Ambient temperature: -45°C ~ 45°C |
| Relative humidity: |
| Daily average < 95% |
| Monthly average less than 90% |
| Protection level: live body seal IP67, fuse barrel IP67, switch cabinet shell IP4X; |
*If you order this product beyond the above conditions, please consult with us.
| IEC62271-1-2007 "High Voltage Switchgear and Control Equipment. Part I: General Specifications"; |
| IEC620071-200-2003 "1~52kV AC Metal-enclosed Switchgear and Control Equipment"; |
| GB3906-2006 "3.6~40.5kV AC Metal-enclosed Switchgear and Control Equipment"; |
| GB/T11022-1999 "Common Technical Conditions for High Voltage Switchgear and Control Equipment Standards"; |
| GB1984-2003 "High Voltage AC Circuit Breaker"; |
| GB1985-2004 "High Voltage AC Disconnector and Grounding Switch"; |
| GB3804-2004 "3.6kV~40.5kV High Voltage AC Load Switch"; |
| DL/T404-2007 "3.6kV~40.5kV AC Metal-enclosed Switchgear and Control Equipment" |
| DL/T5932006 "Common Technical Conditions for High Voltage Switchgear and Control Equipment Standards"; |
| Q/GDW730-2012 "Technical Conditions for 12V Solid Insulated Ring Main Unit". |
| Name |
Unit |
Parameter |
| Rated voltage |
kV |
12 |
| Rated frequency |
Hz |
50 |
| Current rating |
A |
630 |
1250 |
| Rated insulation level |
Power frequency withstand voltage |
Fracture |
kV |
48 |
| Fireline to Fireline |
kV |
42 |
| Fireline to ground |
kV |
42 |
| Withstand voltage for lightning impulses |
Fracture |
kV |
85 |
| Fireline to Fireline |
kV |
75 |
| Fireline to ground |
kV |
75 |
| Rated short-circuit interrupting current(1s) |
kA |
25 |
31.5 |
| Rated short-time withstand current(4s) |
kA |
25 |
31.5 |
| Rated peak withstand current(1p) |
kA |
63 |
80 |
| Rated short-circuit closing current (peak)(1ma) |
kA |
63 |
80 |
| Enclosure rating |
|
IP4X |
| Operating mode |
|
Spring-loaded energy storage |
Wenzhou Naisite Electric Co., Ltd is a technology oriented transmission and distribution equipment manufacturing enterprises, since its establishment in 2011, focus on transmission and distribution equipment technology progress, advocating technological innovation, introduce new energy prefabricated, a secondary fusion ring cage, environmental protection cabinet,Transformers, cable branch box, box type substation such as intelligent high and low voltage transmission and distribution equipment. Applicable to electric power, railway, petrochemical, subway, municipal construction, steel, coal and other industries. The company's products have achieved a number of technological breakthroughs in environmental protection, miniaturization, intelligence, maintenance free and other aspects. The headquarters of Wenzhou Naisi Electric Co., Ltd is located in the core area of Wenzhou Yueqing Economic Development Zone, "the capital of Electrical appliances in China". Has an excellent domestic intelligent distribution network products assembly line.
The company has a vacuum box helium leak detection system, local discharge test laboratory and other advanced inspection and test equipment system. With the basic experimental facilities and research environment needed for advanced technology development and scientific research, the products are tested according to the international IEC standards. The enterprise has passed the IS09001 quality system certification, IS014001 environmental system certification and OHSAS18001 occupational health and safety management system certification, the products have been obtained the CNAS national accreditation laboratory certification report.
| Q: Are you a trading company or manufacturer ? |
| A: We are a professional factory with 10 years experience in the field of High and Low voltage switchgears,Substation,transformers,cable distribution box and various electrical equipment, such as vacuum circuit breaker , load break switch etc.Our factory is the excellent supplier of State Grid Corporation of China . |
| Q: Do you accept customized serveice ? |
| A: We offer OEM/ODM service , can print your logo on product . our professional technical and quotation team can provice a satisfied project according to your drawing and parameters . |
| Q:How long is your delivery lead time ? |
| A: It depends on your product requirement and quantity . Generally , 5~10 working days is available . |
| Q: How do you solve quality problems? |
| A: Please porvide detailed photoes of quality problems. our technical and quality testing department will analyse.we will make a satisfied soluton within 2 days. |
| Q: What is your payment terms ? |
| A: 30%T/T in advance,70% before shipment . West union , L/C are also acceptable . |
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